Swordfish - Seafood Watch · Swordfish is a widely distributed billfish species, found globally...

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Swordfish Xiphias gladius ©Monterey Bay Aquarium North and South Atlantic Handline, Harpoons April 3, 2017 Seafood Watch Consulting Researcher Disclaimer Seafood Watch strives to have all Seafood Reports reviewed for accuracy and completeness by external scientists with expertise in ecology, fisheries science and aquaculture. Scientific review, however, does not constitute an endorsement of the Seafood Watch program or its recommendations on the part of the reviewing scientists. Seafood Watch is solely responsible for the conclusions reached in this report. ® ® ® Fisheries Standard Version F2

Transcript of Swordfish - Seafood Watch · Swordfish is a widely distributed billfish species, found globally...

Page 1: Swordfish - Seafood Watch · Swordfish is a widely distributed billfish species, found globally from 50°N to 50°S and throughout the Atlantic Ocean as well as the Mediterranean

Swordfish

Xiphias gladius

©Monterey Bay Aquarium

North and South AtlanticHandline, Harpoons

April 3, 2017

Seafood Watch Consulting Researcher

DisclaimerSeafood Watch strives to have all Seafood Reports rev iewed for accuracy and completeness by external scientists with expertise in ecology,fisheries science and aquaculture. Scientific rev iew, however, does not constitute an endorsement of the Seafood Watch program or itsrecommendations on the part of the rev iewing scientists. Seafood Watch is solely responsible for the conclusions reached in this report.

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Fisheries Standard Version F2

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Table of Contents

About Seafood Watch

Guiding Principles

Summary

Final Seafood Recommendations

Introduction

Assessment

Criterion 1: Impacts on the species under assessment

Criterion 2: Impacts on other species

Criterion 3: Management Effectiveness

Criterion 4: Impacts on the habitat and ecosystem

Acknowledgements

References

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About Seafood WatchMonterey Bay Aquarium’s Seafood Watch program evaluates the ecological sustainability of wild-caught andfarmed seafood commonly found in the United States marketplace. Seafood Watch defines sustainableseafood as originating from sources, whether wild-caught or farmed, which can maintain or increase productionin the long-term without jeopardizing the structure or function of affected ecosystems. Seafood Watch makesits science-based recommendations available to the public in the form of regional pocket guides that can bedownloaded from www.seafoodwatch.org. The program’s goals are to raise awareness of important oceanconservation issues and empower seafood consumers and businesses to make choices for healthy oceans.

Each sustainability recommendation on the regional pocket guides is supported by a Seafood Report. Eachreport synthesizes and analyzes the most current ecological, fisheries and ecosystem science on a species, thenevaluates this information against the program’s conservation ethic to arrive at a recommendation of “BestChoices,” “Good Alternatives” or “Avoid.” The detailed evaluation methodology is available upon request. Inproducing the Seafood Reports, Seafood Watch seeks out research published in academic, peer-reviewedjournals whenever possible. Other sources of information include government technical publications, fisherymanagement plans and supporting documents, and other scientific reviews of ecological sustainability. SeafoodWatch Research Analysts also communicate regularly with ecologists, fisheries and aquaculture scientists, andmembers of industry and conservation organizations when evaluating fisheries and aquaculture practices.Capture fisheries and aquaculture practices are highly dynamic; as the scientific information on each specieschanges, Seafood Watch ’s sustainability recommendations and the underlying Seafood Reports will be updatedto reflect these changes.

Parties interested in capture fisheries, aquaculture practices and the sustainability of ocean ecosystems arewelcome to use Seafood Reports in any way they find useful. For more information about Seafood Watch andSeafood Reports, please contact the Seafood Watch program at Monterey Bay Aquarium by calling 1-877-229-9990.

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Guiding PrinciplesSeafood Watch defines sustainable seafood as originating from sources, whether fished or farmed, that canmaintain or increase production in the long-term without jeopardizing the structure or function of affectedecosystems.

Based on this principle, Seafood Watch had developed four sustainability criteria for evaluating wildcatchfisheries for consumers and businesses. These criteria are:

How does fishing affect the species under assessment?How does the fishing affect other, target and non-target species?How effective is the fishery’s management?How does the fishing affect habitats and the stability of the ecosystem?

Each criterion includes:

Factors to evaluate and scoreGuidelines for integrating these factors to produce a numerical score and rating

Once a rating has been assigned to each criterion, we develop an overall recommendation. Criteria ratings andthe overall recommendation are color-coded to correspond to the categories on the Seafood Watch pocketguide and online guide:

Best Choice/Green: Are well managed and caught in ways that cause little harm to habitats or other wildlife.

Good Alternative/Yellow: Buy, but be aware there are concerns with how they’re caught.

Avoid/Red Take a pass on these for now. These items are overfished or caught in ways that harm othermarine life or the environment.

“Fish” is used throughout this document to refer to finfish, shellfish and other invertebrates

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SummaryThis report focuses on the handgear fisheries for swordfish (Xiphias gladius) caught in the Atlantic, along withswordfish caught in U.S. waters by handline and harpoon and with swordfish caught by harpoon in Canadianwaters.

Swordfish populations are healthy in the Atlantic and fishing mortality rates are sustainable. There are nosubstantial bycatch species in these fisheries. In international waters, swordfish is managed by the InternationalCommission for the Conservation of Atlantic Tunas (ICCAT), a Regional Fisheries Management Organization(RFMO). In domestic waters, swordfish is managed by the United States National Marine Fisheries Service(NMFS) and the Department of Fisheries and Oceans Canada (DFO). Management currently in place hassucceeded in rebuilding and maintaining stock abundance.

Handline and harpoon gears typically do not make contact with bottom habitats, so mitigation measures are notneeded. There are no explicit ecosystem management measures in place either domestically or internationally.

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Final Seafood Recommendations

Summary

Handline swordfish fisheries in the North Atlantic, including the U.S., and the South Atlantic, and the harpoonswordfish fisheries in the U.S. and Canada, are rated Best Choice.

Scoring Guide

Scores range from zero to five where zero indicates very poor performance and five indicates the fishingoperations have no significant impact.

Final Score = geometric mean of the four Scores (Criterion 1, Criterion 2, Criterion 3, Criterion 4).

Best Choice/Green = Final Score >3.2, and no Red Criteria, and no Critical scoresGood Alternative/Yellow = Final score >2.2-3.2, and neither Harvest Strategy (Factor 3.1) nor BycatchManagement Strategy (Factor 3.2) are Very High Concern , and no more than one Red Criterion, and noCritical scoresAvoid/Red = Final Score ≤2.2, or either Harvest Strategy (Factor 3.1) or Bycatch Management Strategy(Factor 3.2) is Very High Concern or two or more Red Criteria, or one or more Critical scores.

Because effect ive management is an essent ial component of sustainable fisheries, Seafood Watch issues an Avoidrecommendation for any fishery scored as a Very High Concern for either factor under Management (Criterion 3).

SPECIES/FISHERY

CRITERION 1:IMPACTS ONTHE SPECIES

CRITERION 2:IMPACTS ONOTHERSPECIES

CRITERION 3:MANAGEMENTEFFECTIVENESS

CRITERION 4:HABITAT ANDECOSYSTEM

OVERALLRECOMMENDATION

SwordfishUnited StatesNorth At lant ic,Handlines

Green (5.000) Green (5.000) Yellow (3.000) Green (3.873) Best Choice(4.128)

SwordfishNorth At lant ic,Handlines

Green (5.000) Green (5.000) Yellow (3.000) Green (3.873) Best Choice(4.128)

SwordfishSouth At lant ic,Handlines

Green (3.831) Green (5.000) Yellow (3.000) Green (3.873) Best Choice(3.862)

SwordfishCanada NorthAt lant ic, Harpoons

Green (5.000) Green (5.000) Yellow (3.000) Green (3.873) Best Choice(4.128)

SwordfishUnited StatesNorth At lant ic,Harpoons

Green (5.000) Green (5.000) Yellow (3.000) Green (3.873) Best Choice(4.128)

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Introduction

Scope of the analysis and ensuing recommendation

This report focuses on handline fisheries for swordfish (Xiphias gladius) in the North and South Atlantic,including U.S. waters, and on the Canadian and U.S. harpoon fisheries.

Species Overview

Swordfish is a widely distributed billfish species, found globally from 50°N to 50°S and throughout the AtlanticOcean as well as the Mediterranean Sea. Spawning occurs in tropical and subtropical waters of the westernAtlantic. There are three management units for swordfish: North Atlantic, South Atlantic, and Mediterranean.There is some genetic evidence to support that these units are distinct populations, although mixing betweenthe populations likely occurs (ICCAT 2013a).

In international waters, swordfish is managed by the International Commission for the Conservation of AtlanticTunas (ICCAT). In U.S. domestic waters, the National Marine Fisheries Service (NMFS) is responsible formanagement; in Canadian waters, the Department of Fisheries and Oceans (DFO) is responsible. The UnitedStates and Canada are both contracting parties to ICCAT and are therefore required to administer ICCATmanagement recommendations.

Production Statistics

Longlines are the primary gear used to catch swordfish in the Atlantic and worldwide, but other surface gears,such as handlines and harpoon, are also used. Peak catches of swordfish in the North Atlantic (20,236 t)occurred in 1987, but catches have averaged around 11,551 t for the past 10 years. The introduction of quotas,the movement of some fleets into the South Atlantic, and changes to the target species account for most of thedecreases in catch. Total catches of swordfish during 2014 were 10,801 t in the North Atlantic and 9,885 t in theSouth Atlantic. Other surface gears, which include handlines and harpoons, caught 515 t of swordfish inthe North Atlantic and 83 t in the South Atlantic during 2014. The United States typically lands the second-highest amount of swordfish (after Spain) in the North Atlantic, ranging from 1,812 t to 2,463 t over the pastdecade. The U.S. landed 87.5 t of swordfish caught by handline gear during 2014 and only 0.5 t by harpoonduring 2013 (NMFS 2015). Canada currently lands the third-largest amount of swordfish in the North Atlantic,ranging from 959 t to 1,604 t over the past decade, of which 10% was from the harpoon fishery (ICCAT 2015).

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Figure 1 Swordfish catches in the North and South Atlantic (ICCAT 2012a).

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Importance to the US/North American market.

Swordfish imports into the United States were 5,072 t in 2011 and 6,027 in 2012. During 2012, swordfishimports into the United States were primarily from Ecuador (24%), Singapore (14%), Canada (14%), CostaRica (12%), and Chile (11%). Swordfish exports in 2011 and 2012 were also fairly low, at 206 t and 152 t,respectively (NMFS 2013).

Figure 2 Major contributors to U.S. swordfish imports (%) (NMFS 2013)

Common and market names.

Swordfish is also known as broadbilled swordfish, broadbill, espada, and emperado.

Primary product forms

Swordfish is sold in fresh and frozen forms.

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AssessmentThis section assesses the sustainability of the fishery(s) relative to the Seafood Watch Criteria for Fisheries,available at http://www.seafoodwatch.org.

Criterion 1: Impacts on the species under assessmentThis criterion evaluates the impact of fishing mortality on the species, given its current abundance. The inherentvulnerability to fishing rating influences how abundance is scored, when abundance is unknown.

The final Criterion 1 score is determined by taking the geometric mean of the abundance and fishing mortalityscores. The Criterion 1 rating is determined as follows:

Score >3.2=Green or Low ConcernScore >2.2 and ≤3.2=Yellow or Moderate ConcernScore ≤2.2=Red or High Concern

Rating is Critical if Factor 1.3 (Fishing Mortality) is Critical

Criterion 1 Summary

Swordfish populations in the North Atlantic have recovered and are also healthy in the South Atlantic.

Criterion 1 Assessment

SCORING GUIDELINES

Factor 1.1 - Inherent Vulnerability

Low—The FishBase vulnerability score for species is 0-35, OR species exhibits life history characteristics thatmake it resilient to fishing, (e.g., early maturing).Medium—The FishBase vulnerability score for species is 36-55, OR species exhibits life historycharacteristics that make it neither particularly vulnerable nor resilient to fishing, (e.g., moderate age at

SWORDFISH

Region / MethodInherentVulnerability Abundance Fishing Mortality Score

United States/North AtlanticHandlines

2.00: Medium 5.00: Very LowConcern

5.00: Very LowConcern

Green(5.000)

North Atlantic Handlines 2.00: Medium 5.00: Very LowConcern

5.00: Very LowConcern

Green(5.000)

South Atlantic Handlines 2.00: Medium 4.00: Low Concern 3.67: Low Concern Green(3.831)

Canada/North AtlanticHarpoons

2.00: Medium 5.00: Very LowConcern

5.00: Very LowConcern

Green(5.000)

United States/North AtlanticHarpoons

2.00: Medium 5.00: Very LowConcern

5.00: Very LowConcern

Green(5.000)

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sexual maturity (5-15 years), moderate maximum age (10-25 years), moderate maximum size, and middleof food chain).High—The FishBase vulnerability score for species is 56-100, OR species exhibits life history characteristicsthat make is particularly vulnerable to fishing, (e.g., long-lived (>25 years), late maturing (>15 years), lowreproduction rate, large body size, and top-predator). Note: The FishBase vulnerability scores is an index ofthe inherent vulnerability of marine fishes to fishing based on life history parameters: maximum length, ageat first maturity, longevity, growth rate, natural mortality rate, fecundity, spatial behaviors (e.g., schooling,aggregating for breeding, or consistently returning to the same sites for feeding or reproduction) andgeographic range.

Factor 1.2 - Abundance

5 (Very Low Concern)—Strong evidence exists that the population is above target abundance level (e.g.,biomass at maximum sustainable yield, BMSY) or near virgin biomass.4 (Low Concern)—Population may be below target abundance level, but it is considered not overfished3 (Moderate Concern) —Abundance level is unknown and the species has a low or medium inherentvulnerability to fishing.2 (High Concern)—Population is overfished, depleted, or a species of concern, OR abundance is unknownand the species has a high inherent vulnerability to fishing.1 (Very High Concern)—Population is listed as threatened or endangered.

Factor 1.3 - Fishing Mortality

5 (Very Low Concern)—Highly likely that fishing mortality is below a sustainable level (e.g., below fishingmortality at maximum sustainable yield, FMSY), OR fishery does not target species and its contribution to themortality of species is negligible (≤ 5% of a sustainable level of fishing mortality).3.67 (Low Concern)—Probable (>50%) chance that fishing mortality is at or below a sustainable level, butsome uncertainty exists, OR fishery does not target species and does not adversely affect species, but itscontribution to mortality is not negligible, OR fishing mortality is unknown, but the population is healthy andthe species has a low susceptibility to the fishery (low chance of being caught).2.33 (Moderate Concern)—Fishing mortality is fluctuating around sustainable levels, OR fishing mortality isunknown and species has a moderate-high susceptibility to the fishery and, if species is depleted,reasonable management is in place.1 (High Concern)—Overfishing is occurring, but management is in place to curtail overfishing, OR fishingmortality is unknown, species is depleted, and no management is in place.0 (Critical)—Overfishing is known to be occurring and no reasonable management is in place to curtailoverfishing.

SWORDFISH

Factor 1.1 - Inherent Vulnerability

UNITED STATES/NORTH ATLANTIC, HANDLINESNORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINESCANADA/NORTH ATLANTIC, HARPOONSUNITED STATES/NORTH ATLANTIC, HARPOONS

Medium

FishBase assigned a high to very high vulnerability of 72 out of 100 (Froese and Pauly 2013). But the lifehistory characteristics of swordfish indicate a lower vulnerability to fishing. For example, swordfish reaches

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Factor 1.2 - Abundance

Factor 1.3 - Fishing Mortality

sexual maturity at around 150–180 cm in size and around 5 years of age, and it reaches a maximum length of455 cm and lives more than 10 years. Swordfish is a broadcast spawner and a top predator (Froese and Pauly2013). This is more indicative of a moderate vulnerability to fishing, according to the productivity analysis(1.83, with 1 indicating very high vulnerability to fishing and 3 indicating a low vulnerability to fishing). Wehave therefore adjusted the score to medium.

Rationale:

2Parameter Life history Score Average age at sexual maturity 5–15 Average size at sexual maturity 40–200 cm 2Maximum length > 300 cm 1Maximum age 10–25 years 2Reproduction Broadcast spawner 3Trophic level > 3.25 1

Average score 1.83

UNITED STATES/NORTH ATLANTIC, HANDLINESNORTH ATLANTIC, HANDLINESCANADA/NORTH ATLANTIC, HARPOONSUNITED STATES/NORTH ATLANTIC, HARPOONS

Very Low Concern

The last assessment for swordfish in the North Atlantic was conducted in 2013. The population of swordfish inthe North Atlantic is estimated to be at or above the levels needed to produce the maximum sustainable yield(B ) and the population is not overfished (B /B = 1.14 [1.05–1.24]). The results from this assessmentwere quite similar to those from the previous 2009 assessment (ICCAT 2013a) (ICCAT 2013d). We haveawarded a "very low" concern score because swordfish is not overfished and the abundance is above targetlevels.

MSY 2011 MSY

SOUTH ATLANTIC, HANDLINES

Low Concern

Swordfish populations in the South Atlantic Ocean were last assessed in 2013. There was considerableuncertainty surrounding the results, so the ratio of the current biomass to that necessary to produce themaximum sustainable yield (MSY) could not be calculated. But the assessment suggests that the biomass ismost likely above the levels needed to produce the maximum sustainable yield (B ) and the population islikely not overfished. We have awarded a "low" concern and not very low concern score because of the largeamount of uncertainty surrounding the results (ICCAT 2013a).

MSY

UNITED STATES/NORTH ATLANTIC, HANDLINESNORTH ATLANTIC, HANDLINESCANADA/NORTH ATLANTIC, HARPOONSUNITED STATES/NORTH ATLANTIC, HARPOONS

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Very Low Concern

Fishing mortality of swordfish in the North Atlantic has been below the levels needed to produce the maximumsustainable yield (F ) since 2000, and overfishing is not currently occurring (F /F = 0.82 [0.73-0.91]).Fishing mortality peaked in 1995 and has shown a downward trend since, with a slight increase from 2002–2005 (ICCAT 2013a) (ICCAT 2013d). We have awarded a "very low" concern score because overfishing is notoccurring.

MSY 2011 MSY

SOUTH ATLANTIC, HANDLINES

Low Concern

Despite a large amount of uncertainty surrounding the results of the 2013 assessment for swordfish in theSouth Atlantic, current fishing mortality rates are likely below those necessary to produce the maximumsustainable yield (F ) (0.75 [range of 0.60-1.01]) and overfishing is likely not occurring (ICCAT 2013a). Wehave awarded a "low" concern score because overfishing is likely not occurring.

MSY

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Criterion 2: Impacts on other speciesAll main retained and bycatch species in the fishery are evaluated in the same way as the species underassessment were evaluated in Criterion 1. Seafood Watch defines bycatch as all fisheries-related mortality orinjury to species other than the retained catch. Examples include discards, endangered or threatened speciescatch, and ghost fishing.

To determine the final Criterion 2 score, the score for the lowest scoring retained/bycatch species is multipliedby the discard rate score (ranges from 0-1), which evaluates the amount of non-retained catch (discards) andbait use relative to the retained catch. The Criterion 2 rating is determined as follows:

Score >3.2=Green or Low ConcernScore >2.2 and ≤3.2=Yellow or Moderate ConcernScore ≤2.2=Red or High Concern

Rating is Critical if Factor 2.3 (Fishing Mortality) is Crtitical

Criterion 2 Summary

Only the lowest scoring main species is/are listed in the table and text in this Criterion 2 section; a full list andassessment of the main species can be found in Appendix B.

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SWORDFISH - CANADA/NORTH ATLANTIC - HARPOONS

Subscore: 5.000 Discard Rate: 1.00 C2 Rate: 5.000

SpeciesInherentVulnerability Abundance Fishing Mortality Subscore

No other main species caught

SWORDFISH - NORTH ATLANTIC - HANDLINES

Subscore: 5.000 Discard Rate: 1.00 C2 Rate: 5.000

SpeciesInherentVulnerability Abundance Fishing Mortality Subscore

No other main species caught

SWORDFISH - SOUTH ATLANTIC - HANDLINES

Subscore: 5.000 Discard Rate: 1.00 C2 Rate: 5.000

SpeciesInherentVulnerability Abundance Fishing Mortality Subscore

No other main species caught

SWORDFISH - UNITED STATES/NORTH ATLANTIC - HANDLINES

Subscore: 5.000 Discard Rate: 1.00 C2 Rate: 5.000

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Handline and harpoon fisheries typically have very little bycatch associated with them. Although tuna species,sharks, and other fish may incidentally be caught, they are in quite small amounts and < 5% (Seafood Watchcriteria for inclusion in reports). Interactions with Endangered, Threatened or Protected species are also likelyquite minimal in these fisheries. Therefore, no additional "main species" were included in this report.

2.4 - Discards + Bait / Landings

SpeciesInherentVulnerability Abundance Fishing Mortality Subscore

No other main species caught

SWORDFISH - UNITED STATES/NORTH ATLANTIC - HARPOONS

Subscore: 5.000 Discard Rate: 1.00 C2 Rate: 5.000

SpeciesInherentVulnerability Abundance Fishing Mortality Subscore

No other main species caught

UNITED STATES / NORTH ATLANTIC, HANDLINESNORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONS

< 20%

Handline and other pole and line methods have very low discard rates, typically ranging from 0% to7% {Kelleher 2005}.

CANADA / NORTH ATLANTIC, HARPOONS

< 20%

Harpoon fisheries typically have a negligible discard rate, even as low as zero in some areas {Kelleher 2005}.

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Criterion 3: Management EffectivenessManagement is separated into management of retained species (harvest strategy) and management of non-retained species (bycatch strategy).

The final score for this criterion is the geometric mean of the two scores. The Criterion 3 rating is determinedas follows:

Score >3.2=Green or Low ConcernScore >2.2 and ≤3.2=Yellow or Moderate ConcernScore ≤2.2 or either the Harvest Strategy (Factor 3.1) or Bycatch Management Strategy (Factor 3.2) is VeryHigh Concern = Red or High Concern

Rating is Critical if either or both of Harvest Strategy (Factor 3.1) and Bycatch Management Strategy (Factor3.2) ratings are Critical.

Criterion 3 Summary

Criterion 3 Assessment

SCORING GUIDELINES

Factor 3.1: Harvest Strategy

Seven subfactors are evaluated: Management Strategy, Recovery of Species of Concern, ScientificResearch/Monitoring, Following of Scientific Advice, Enforcement of Regulations, Management Track Record,and Inclusion of Stakeholders. Each is rated as ‘ineffective,’ ‘moderately effective,’ or ‘highly effective.’

5 (Very Low Concern)—Rated as ‘highly effective’ for all seven subfactors considered4 (Low Concern)—Management Strategy and Recovery of Species of Concern rated ‘highly effective’ and allother subfactors rated at least ‘moderately effective.’3 (Moderate Concern)—All subfactors rated at least ‘moderately effective.’2 (High Concern)—At minimum, meets standards for ‘moderately effective’ for Management Strategy andRecovery of Species of Concern, but at least one other subfactor rated ‘ineffective.’1 (Very High Concern)—Management exists, but Management Strategy and/or Recovery of Species ofConcern rated ‘ineffective.’0 (Critical)—No management exists when there is a clear need for management (i.e., fishery catchesthreatened, endangered, or high concern species), OR there is a high level of Illegal, unregulated, andunreported fishing occurring.

Region / Method Harvest Strategy Bycatch Strategy Score

Canada / North Atlantic / Harpoons 3.000 0.000 Yellow (3.000)

North Atlantic / Handlines 3.000 0.000 Yellow (3.000)

South Atlantic / Handlines 3.000 0.000 Yellow (3.000)

United States / North Atlantic / Harpoons 3.000 0.000 Yellow (3.000)

United States / North Atlantic / Handlines 3.000 0.000 Yellow (3.000)

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The United Nations Law of the Sea agreement (1995) indicated that the management of straddling and highlymigratory fish stocks should be carried out through Regional Fisheries Management Organizations (RFMOs).RFMOs are the only legally mandated fishery management bodies on the high seas, and there are currently 18RFMOs (www.fao.org) that cover nearly all the world’s high seas. Countries must abide by the managementmeasures set forth by individual RFMOs to fish in those waters (Cullis-Suzuki and Pauly 2010). Some RFMOsmanage all marine living resources within their authority (e.g., General Fisheries Commission for theMediterranean [GFCM]), while others manage a group of species, such as tunas (e.g., International Commissionfor the Conservation of Atlantic Tunas [ICCAT]).

This report focuses on swordfish caught by handline gear in international waters under RFMO jurisdiction (allAtlantic waters), as well as the Canadian harpoon fishery for swordfish and the handline fisheries for swordfishin the United States, which are under the jurisdiction of Canada and the United States, respectively. Swordfishcaught with these gears in international waters within the Atlantic are managed by ICCAT, a tuna RFMO. TheDepartment of Fisheries and Oceans Canada (DFO) manages swordfish in Canadian waters. In Canada,swordfish is currently managed under the Canadian Atlantic Swordfish and Other Tunas 2004–2006 IntegratedFisheries Management Plan. The National Marine Fisheries Service (NMFS) manages swordfish caught in U.S.domestic waters. Canada and the United States are each a Contracting Party of the International Commissionfor the Conservation of Atlantic Tunas (ICCAT) and must abide by all ICCAT recommendations.

For this report, we are scoring ICCAT's management of the North and South Atlantic fisheries and managementby Canada and the United States of their respective fisheries.

Subfactor 3.1.1 – Management Strategy and Implementation

Considerations: What type of management measures are in place? Are there appropriate management goals,and is there evidence that management goals are being met? To achieve a highly effective rating, there must beappropriate management goals, and evidence that the measures in place have been successful atmaintaining/rebuilding species.

FACTOR 3.1: MANAGEMENT OF FISHING IMPACTS ON RETAINED SPECIES

Region / Method Strategy Recovery Research Advice Enforce Track Inclusion

Canada / North Atlantic /Harpoons

ModeratelyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

ModeratelyEffective

North Atlantic /Handlines

ModeratelyEffective

HighlyEffective

HighlyEffective

HighlyEffective

ModeratelyEffective

HighlyEffective

HighlyEffective

South Atlantic /Handlines

ModeratelyEffective

N/A HighlyEffective

HighlyEffective

ModeratelyEffective

HighlyEffective

HighlyEffective

United States / NorthAtlantic / Harpoons

ModeratelyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

United States / NorthAtlantic / Handlines

ModeratelyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

HighlyEffective

CANADA / NORTH ATLANTIC, HARPOONS

Moderately Effective

Management measures for swordfish in Canadian waters include a limited-entry system, a minimum size limit,

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Factor 3.1 Summary

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Subfactor 3.1.2 – Recovery of Species of Concern

Considerations: When needed, are recovery strategies/management measures in place to rebuildoverfished/threatened/ endangered species or to limit fishery’s impact on these species and what is theirlikelihood of success? To achieve a rating of Highly Effective, rebuilding strategies that have a high likelihood ofsuccess in an appropriate timeframe must be in place when needed, as well as measures to minimize mortalityfor any overfished/threatened/endangered species.

and individual transferable quotas, based on Canada's allocated quota from ICCAT. The quota is split betweenthe longline (90%) and harpoon (10%) fisheries (DFO 2012b). Populations of swordfish in the North Atlantichave remained healthy with these regulations in place, but there are no harvest control rules in place, so wehave awarded a "moderately effective" score.

NORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINES

Moderately Effective

Swordfish in the Atlantic are managed through a country-specific total allowable catch (TAC) and a minimumsize limit in the North Atlantic (ICCAT 2012a) (ICCAT 2013c). The Standing Committee on Research andScience (SCRS) of the International Commission for the Conservation of Atlantic Tunas (ICCAT) has also beentasked with developing a limit reference point, and future management is to include trigger reference pointsthat result in a rebuilding plan if the population declines below the limit reference point (ICCAT 2012e). Duringthe 2013 Commission meeting, an interim limit reference point was adopted for use in stock assessments, andsteps were taken to begin the development of a harvest control rule for swordfish (ICCAT 2013c). We haveawarded a "moderately effective" score because ICCAT has measures in place to address compliance withmanagement measures and has enacted measures for swordfish that have allowed the population to recoverto sustainable levels, but there are no formal reference points or harvest control rules currently in place.

UNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Moderately Effective

Fishers must hold a handgear limited-access permit, and handline fishing for swordfish is restricted to theNorth Atlantic. There is a quota based on advice provided by the International Commission for theConservation of Atlantic Tunas (ICCAT), which is adjusted annually based on overages or underages. Inaddition, there is a minimum size limit and a requirement that swordfish be landed whole (NMFS2013). Populations of swordfish in the North Atlantic have remained healthy with these regulations in place,but there are no harvest control rules in place, so we have awarded a "moderately effective" and not a highlyeffective score.

CANADA / NORTH ATLANTIC, HARPOONSNORTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

Swordfish in the North Atlantic was under a 10-year rebuilding plan between 2000 and 2009. The populationis now considered to be rebuilt and healthy, and swordfish is now managed under a conservation

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Subfactor 3.1.3 – Scientific Research and Monitoring

Considerations: How much and what types of data are collected to evaluate the health of the population and thefishery’s impact on the species? To achieve a Highly Effective rating, population assessments must be conductedregularly and they must be robust enough to reliably determine the population status.

Subfactor 3.1.4 – Management Record of Following Scientific Advice

Considerations: How often (always, sometimes, rarely) do managers of the fishery follow scientificrecommendations/advice (e.g. do they set catch limits at recommended levels)? A Highly Effective rating isgiven if managers nearly always follow scientific advice.

management plan (ICCAT 2012a). We have therefore awarded a "highly effective" score.

SOUTH ATLANTIC, HANDLINES

N/A

No recovery plan is needed because swordfish in the South Atlantic is not overfished (ICCAT 2010b).

CANADA / NORTH ATLANTIC, HARPOONSNORTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

Assessments of swordfish in the North Atlantic are conducted every 4 years and include catch and effort data(both fishery-dependent and -independent) from various fisheries targeting swordfish in the North Atlantic,along with biological information and other data sets (ICCAT 2009c). We have therefore awarded a "highlyeffective" score.

SOUTH ATLANTIC, HANDLINES

Highly Effective

Swordfish assessments are conducted every 4 years and include catch and effort data from fishery-dependentand -independent sources, along with biological information and other data sets (ICCAT 2012a). There wereissues with data limitations for the South Atlantic population. But we have awarded a "highly effective" scorebecause assessments are conducted on a regular schedule and include a variety of information.

CANADA / NORTH ATLANTIC, HARPOONS

Highly Effective

Canada follows the scientific advice and management measures enacted by the International Commission forthe Conservation of Atlantic Tunas (ICCAT). These measures included a total allowable catch limit forCanadian swordfish fisheries of 1,348 t during 2014, 2015, and 2016 (ICCAT 2013c). Because Canada hasfollowed the scientific advice, we have awarded a "highly effective" score.

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Subfactor 3.1.5 – Enforcement of Management Regulations

Considerations: Do fishermen comply with regulations, and how is this monitored? To achieve a Highly Effectiverating, there must be regular enforcement of regulations and verification of compliance.

NORTH ATLANTIC, HANDLINES

Highly Effective

According to the 2013 stock assessment, if the 2010 total allowable catch of 13,700 t were maintained, therewould be an 83% probability that the population of North Atlantic swordfish would be maintained (ICCAT2013a). In 2013, the TAC was set and maintained at 13,700 t for 2014, 2015, and 2016 (ICCAT 2013c). Wehave therefore awarded a "highly effective" score.

SOUTH ATLANTIC, HANDLINES

Highly Effective

The swordfish working group suggested that keeping catches of swordfish in the South Atlantic at 15,000 tshould maintain the population; catches at 14,000 t would allow the population to increase and catches above16,000 t would cause the population to decrease. The current TAC is set at 15,000 t (ICCAT 2012a). Becausethe scientific advice was followed, we have awarded a "highly effective" score.

UNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

The United States follows the scientific advice and management measures enacted by the InternationalCommission for the Conservation of Atlantic Tunas (ICCAT). These measures included a total allowable catchof 3,907 t for U.S. swordfish fisheries during 2014, 2015, and 2016 (ICCAT 2013c). We have awarded a"highly effective" score because the United States has followed the scientific advice.

CANADA / NORTH ATLANTIC, HARPOONS

Highly Effective

In the Canadian swordfish fishery, the use of logbooks by all commercial fishers is required, and monitoring atsea and through aerial patrols is conducted by the Canadian Coast Guard and the Department of NationalDefense. In addition, illegal and unreported fishing is penalized through seizure of catches, fines, andsuspension of licenses (DFO 2010). Canada has consistently been below its allotted TAC (ICCAT 2012a). Wehave therefore awarded a "highly effective" score.

NORTH ATLANTIC, HANDLINES

Moderately Effective

In 2012, catches of swordfish were above TAC levels for the first time since 2002 (ICCAT 2013a). But TACoverages can be subtracted for individual countries in subsequent years, and there are monetary implicationsfor countries that exceed their allotted TAC (i.e., they must pay back their overharvest) (ICCAT 2012e) (ICCAT2013c). Countries are required to provide information on catch, catch at size, location, and month of capturesto verify that individual quotas are being upheld and that catches do not exceed the TAC (ICCAT 2012e). We

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Subfactor 3.1.6 – Management Track Record

Considerations: Does management have a history of successfully maintaining populations at sustainable levelsor a history of failing to maintain populations at sustainable levels? A Highly Effective rating is given if measuresenacted by management have been shown to result in the long-term maintenance of species overtime.

have awarded a "moderately effective" score because catches have for the most part been below the TAC, butcatches exceeded the TAC in 2012, there are issues with timely reporting of information, and there can beissues with enforcement on the high seas.

SOUTH ATLANTIC, HANDLINES

Moderately Effective

Catches of swordfish have been below TAC levels since 2007 (ICCAT 2012a). If overages were to occur in thefuture, they can be subtracted in subsequent years (ICCAT 2012f). Countries are required to provideinformation on catch, catch at size, location, and month of captures to verify that individual quotas are beingupheld and that catches do not exceed the TAC (ICCAT 2012e). We have awarded a "moderately effective"score because catches have been below TAC levels since 2007, but there are issues with timely reporting ofinformation and there can be issues with enforcement on the high seas.

UNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

Although the combined catches of swordfish (i.e., all individual countries) within the North Atlantic were abovethe internationally imposed (i.e., ICCAT) TAC during 2012, the United States has consistently been below itsallotted quota (ICCAT 2012a) (ICCAT 2013). Information on catches is collected through a logbook program.Pelagic longline vessels targeting tuna and swordfish are required to use vessel monitoring systems (VMS). Toenforce compliance with time/area closures for pelagic longline gear, species composition data (collectedthrough both logbook and observer records) is used to differentiate between bottom and pelagic longline gear(NMFS 2013). The U.S. Coast Guard also helps enforce fisheries regulations. We have therefore awarded a"highly effective" score.

CANADA / NORTH ATLANTIC, HARPOONSNORTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

According to the 2009 assessment of swordfish in the North Atlantic, the population was above B , so theCommission's rebuilding objective had been met (ICCAT 2009c) (ICCAT 2012a). We have awarded a "highlyeffective" score.

MSY

SOUTH ATLANTIC, HANDLINES

Highly Effective

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Subfactor 3.1.7 – Stakeholder Inclusion

Considerations: Are stakeholders involved/included in the decision-making process? Stakeholders areindividuals/groups/organizations that have an interest in the fishery or that may be affected by the managementof the fishery (e.g., fishermen, conservation groups, etc.). A Highly Effective rating is given if the managementprocess is transparent and includes stakeholder input.

Factor 3.2: Bycatch Strategy

SCORING GUIDELINES

Four subfactors are evaluated: Management Strategy and Implementation, Scientific Research and Monitoring,

Swordfish populations in the South Atlantic are healthy, so Commission objectives have been met (ICCAT2012a). We have awarded a "highly effective" score.

CANADA / NORTH ATLANTIC, HARPOONS

Moderately Effective

The Canadian management process is transparent and includes stakeholder input. There are two advisorybodies: the Atlantic Large Pelagic Advisory Committee (ALPAC) and the Scotia-Fundy Large Pelagics AdvisoryCommittee (SFLPAC). ALPAC is the link between DFO and regional committees, and provides information onmanagement of swordfish (and tunas) in Atlantic Canada. The federal government, provincial governments,fishers, and processors make up this committee. The SFLPAC is a consultative forum on the management,conservation, protection, and utilization of swordfish. The Canadian management plan for swordfish also hasobjectives in place for co-management of the fishery between managers and industry (MMI 2011). But Canadadoes not allow conservation groups to be part of the Canadian delegation to the International Commission forthe Conservation of Tunas. We have therefore awarded a "moderately effective" and not a highly effectivescore.

NORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINES

Highly Effective

The International Commission for the Conservation of Atlantic Tunas (ICCAT) has attempted to includestakeholder input in the management and conservation of some species (e.g., Atlantic bluefin tuna) (ICCAT2008b). Observers are allowed at scientific and commission meetings but may not vote on individualmanagement measures. We have have awarded a "highly effective" score to account for the inclusion ofstakeholder input, the transparency of management process through meeting reports, and the ability of non-delegates to attend and participate in meetings.

UNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Highly Effective

The United States management process is transparent and includes stakeholder input. For example, the U.S.provides information to the public on proposed management plans and solicits comments from interestedstakeholders (NMFS 2012a). Stakeholders can also sit on stock assessment advisory panels and participate instock assessment meetings.

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Record of Following Scientific Advice, and Enforcement of Regulations. Each is rated as ‘ineffective,’ ‘moderatelyeffective,’ or ‘highly effective.’ Unless reason exists to rate Scientific Research and Monitoring, Record ofFollowing Scientific Advice, and Enforcement of Regulations differently, these rating are the same as in 3.1.

5 (Very Low Concern)—Rated as ‘highly effective’ for all four subfactors considered4 (Low Concern)—Management Strategy rated ‘highly effective’ and all other subfactors rated at least‘moderately effective.’3 (Moderate Concern)—All subfactors rated at least ‘moderately effective.’2 (High Concern)—At minimum, meets standards for ‘moderately effective’ for Management Strategy butsome other factors rated ‘ineffective.’1 (Very High Concern)—Management exists, but Management Strategy rated ‘ineffective.’0 (Critical)—No bycatch management even when overfished, depleted, endangered or threatened speciesare known to be regular components of bycatch and are substatntially impacted by the fishery

Subfactor 3.2.3 – Scientific Research and Monitoring

Considerations: Is bycatch in the fishery recorded/documented and is there adequate monitoring of bycatch tomeasure fishery’s impact on bycatch species? To achieve a Highly Effective rating, assessments must beconducted to determine the impact of the fishery on species of concern, and an adequate bycatch datacollection program must be in place to ensure bycatch management goals are being met

Subfactor 3.2.4 – Management Record of Following Scientific Advice

Considerations: How often (always, sometimes, rarely) do managers of the fishery follow scientificrecommendations/advice (e.g., do they set catch limits at recommended levels)? A Highly Effective rating isgiven if managers nearly always follow scientific advice.

Subfactor 3.2.5 – Enforcement of Management Regulations

Considerations: Is there a monitoring/enforcement system in place to ensure fishermen follow managementregulations and what is the level of fishermen’s compliance with regulations? To achieve a Highly Effectiverating, there must be consistent enforcement of regulations and verification of compliance.

FACTOR 3.2: BYCATCH STRATEGYRegion / Method All Kept Critical Strategy Research Advice Enforce

Canada / North Atlantic / Harpoons Yes

North Atlantic / Handlines Yes No

South Atlantic / Handlines Yes No

United States / North Atlantic / Harpoons Yes

United States / North Atlantic / Handlines Yes No

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Criterion 4: Impacts on the habitat and ecosystemThis Criterion assesses the impact of the fishery on seafloor habitats, and increases that base score if there aremeasures in place to mitigate any impacts. The fishery’s overall impact on the ecosystem and food web and theuse of ecosystem-based fisheries management (EBFM) principles is also evaluated. Ecosystem Based FisheriesManagement aims to consider the interconnections among species and all natural and human stressors on theenvironment.

The final score is the geometric mean of the impact of fishing gear on habitat score (plus the mitigation of gearimpacts score) and the Ecosystem Based Fishery Management score. The Criterion 2 rating is determined asfollows:

Score >3.2=Green or Low ConcernScore >2.2 and ≤3.2=Yellow or Moderate ConcernScore ≤2.2=Red or High Concern

Rating cannot be Critical for Criterion 4.

Criterion 4 Summary

Handline and harpoon gears do not generally come in contact with bottom habitats, so mitigation measures arenot in place. Ecosystem impacts are not currently included in management, either domestically (Canada and theUnited States) or internationally (ICCAT).

Criterion 4 Assessment

SCORING GUIDELINES

Factor 4.1 - Impact of Fishing Gear on the Habitat/Substrate

5 (None) - Fishing gear does not contact the bottom4 (Very Low) - Vertical line gear3 (Low)—Gears that contacts the bottom, but is not dragged along the bottom (e.g. gillnet, bottom longline, trap) and is not fished on sensitive habitats. Bottom seine on resilient mud/sand habitats. Midwater trawl that is known to contact bottom occasionally

Region / MethodGear Type andSubstrate

Mitigation of GearImpacts EBFM Score

Canada / North Atlantic /Harpoons

5.00: None 0.00: Not Applicable 3.00: ModerateConcern

Green(3.873)

North Atlantic / Handlines 5.00: None 0.00: Not Applicable 3.00: ModerateConcern

Green(3.873)

South Atlantic / Handlines 5.00: None 0.00: Not Applicable 3.00: ModerateConcern

Green(3.873)

United States / North Atlantic /Harpoons

5.00: None 0.00: Not Applicable 3.00: ModerateConcern

Green(3.873)

United States / North Atlantic /Handlines

5.00: None 0.00: Not Applicable 3.00: ModerateConcern

Green(3.873)

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2 (Moderate)—Bottom dragging gears (dredge, trawl) fished on resilient mud/sand habitats. Gillnet, trap, orbottom longline fished on sensitive boulder or coral reef habitat. Bottom seine except on mud/sand1 (High)—Hydraulic clam dredge. Dredge or trawl gear fished on moderately sensitive habitats (e.g., cobbleor boulder)0 (Very High)—Dredge or trawl fished on biogenic habitat, (e.g., deep-sea corals, eelgrass and maerl)Note: When multiple habitat types are commonly encountered, and/or the habitat classification is uncertain,the score will be based on the most sensitive, plausible habitat type.

Factor 4.2 - Mitigation of Gear Impacts

+1 (Strong Mitigation)—Examples include large proportion of habitat protected from fishing (>50%) withgear, fishing intensity low/limited, gear specifically modified to reduce damage to seafloor and modificationsshown to be effective at reducing damage, or an effective combination of ‘moderate’ mitigation measures.+0.5 (Moderate Mitigation)—20% of habitat protected from fishing with gear or other measures in place tolimit fishing effort, fishing intensity, and spatial footprint of damage caused from fishing.+0.25 (Low Mitigation)—A few measures are in place (e.g., vulnerable habitats protected but other habitatsnot protected); there are some limits on fishing effort/intensity, but not actively being reduced0 (No Mitigation)—No effective measures are in place to limit gear impacts on habitats

Factor 4.3 - Ecosystem-Based Fisheries Management

5 (Very Low Concern)—Substantial efforts have been made to protect species’ ecological roles and ensurefishing practices do not have negative ecological effects (e.g., large proportion of fishery area is protectedwith marine reserves, and abundance is maintained at sufficient levels to provide food to predators)4 (Low Concern)—Studies are underway to assess the ecological role of species and measures are in placeto protect the ecological role of any species that plays an exceptionally large role in the ecosystem.Measures are in place to minimize potentially negative ecological effect if hatchery supplementation or fishaggregating devices (FADs) are used.3 (Moderate Concern)—Fishery does not catch species that play an exceptionally large role in theecosystem, or if it does, studies are underway to determine how to protect the ecological role of thesespecies, OR negative ecological effects from hatchery supplementation or FADs are possible andmanagement is not place to mitigate these impacts2 (High Concern)—Fishery catches species that play an exceptionally large role in the ecosystem and noefforts are being made to incorporate their ecological role into management.1 (Very High Concern)—Use of hatchery supplementation or fish aggregating devices (FADs) in the fishery ishaving serious negative ecological or genetic consequences, OR fishery has resulted in trophic cascades orother detrimental impacts to the food web.

Factor 4.1 - Impact of Fishing Gear on the Habitat/Substrate

CANADA / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HARPOONS

None

Harpoons do not come in contact with the bottom habitat (Seafood Watch 2013).

NORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HANDLINES

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Factor 4.2 - Mitigation of Gear Impacts

Factor 4.3 - Ecosystem-Based Fisheries Management

None

Fishing gears such as handline and troll and pole rarely impact bottom habitats (Seafood Watch 2013).

CANADA / NORTH ATLANTIC, HARPOONSNORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Not Applicable

CANADA / NORTH ATLANTIC, HARPOONSNORTH ATLANTIC, HANDLINESSOUTH ATLANTIC, HANDLINESUNITED STATES / NORTH ATLANTIC, HARPOONSUNITED STATES / NORTH ATLANTIC, HANDLINES

Moderate Concern

ICCAT has assessed several species of sharks and conducted ecological risk assessments for other by-catchspecies in tuna and swordfish fisheries. Although ecosystem impacts are not currently included inmanagement plans, ICCAT has adopted management measures to protect by-catch species, and it conductsecological risk assessments. In addition, there is a Sub-Committee on Ecosystems within ICCAT that isinvestigating the role of Ecosystem-Based Management within ICCAT fisheries (ICCAT 2013b). Canada and theUnited States acknowledge the importance of ecosystem-based fisheries management, but currently there isno explicit ecosystem management incorporated into the swordfish management plans.

We have awarded a "moderate" concern score because there are management measures in place that havemaintained the population size of this species, but the ecological and food web impacts of this fishery have notbeen assessed.

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AcknowledgementsScientific review does not constitute an endorsement of the Seafood Watch program, or its seafoodrecommendations, on the part of the reviewing scientists. Seafood Watch is solely responsible for theconclusions reached in this report.

Seafood Watch would like to thank the consulting researcher and author of this report, Alexia Morgan, as wellas seven anonymous reviewers for graciously reviewing this report for scientific accuracy.

®

®

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