Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls...

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Active Capture Gear • Human or mechanical action moves gear to fish • Dragged or towed gears – Trawls – Dredges • Surrounding or encircling nets – Seines • Angling

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Transcript of Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls...

Page 1: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Active Capture Gear

• Human or mechanical action moves gear to fish• Dragged or towed gears

– Trawls– Dredges

• Surrounding or encircling nets– Seines

• Angling

Page 2: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Midwater trawls

Page 3: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 4: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Tucker trawl

Page 5: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 6: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Pelagic paired trawl

Page 7: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Single boat demersal trawl

Page 8: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 9: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Beach or bag seine encircles fish

Page 10: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 11: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Seines often used for prey fishes or young sport fishes

Gizzard Shad

Largemouth Bass and Bluegill

Minnows and shiners

Page 12: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Purse seine encircles fish in open water

Page 13: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Purse seine being set and purse line pulled

Page 14: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 15: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Purse seine is a complicated gear; often justified for open-water species (e.g., shad)

Page 16: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Angling as a sampling tool

- Active? Probably.- A valid ampling technique, but with biases- Valid use in mark-recapture studies- No matter what, you’ll catch some grief: your parents always knew you were going into this profession so you could get paid to hunt or fish.

Page 17: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

On a Commercial Scale

Page 18: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 19: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 20: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Pole Fishing for Tuna

Page 21: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 22: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 23: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Scallop Dredging

Page 24: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 25: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.
Page 26: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Longline and Drift Nets

•baited

•miles long

•disadvantages

Page 27: Active Capture Gear Human or mechanical action moves gear to fish Dragged or towed gears – Trawls – Dredges Surrounding or encircling nets – Seines Angling.

Avoidance of Atlantic cod (Gadus morhua) with a topless ...mixed stocks of groundfish. Previous studies using topless trawls (i.e. trawls with a headrope more than 20% longer than

Avoidance of Atlantic cod (Gadus morhua) with a topless ...mixed stocks of groundfish. Previous studies using topless trawls (i.e. trawls with a headrope more than 20% longer than

Conf.igurations and Relative Efficiencies of Shrimp Trawls … · 2012-03-16 · 3 NOAA Technical Report NMFS 3 Conf.igurations and Relative Efficiencies of Shrimp Trawls Employed

Conf.igurations and Relative Efficiencies of Shrimp Trawls … · 2012-03-16 · 3 NOAA Technical Report NMFS 3 Conf.igurations and Relative Efficiencies of Shrimp Trawls Employed

Conf.igurations and Relative Efficiencies of Shrimp Trawls ... · Historically, the most popular trawls in the southeastern U.S. shrimp fishery have been the flat trawl, the balloon

Conf.igurations and Relative Efficiencies of Shrimp Trawls ... · Historically, the most popular trawls in the southeastern U.S. shrimp fishery have been the flat trawl, the balloon

S Winged trawls - Wing Trawling Systemwingtrawlingsystem.com/wp-content/uploads/2013/03/Wing-Trawl... · Winged trawls Randy Skinner’s trawl system keeps the net spread to its full

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Fishing with beach seines - Home | Food and Agriculture ... · 562 Fishing with beach seines edited by Uwe Tietze FAO Consultant Olympia, Washington, United States of America Robert

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Comparison of anchovy abundances estimated by trawls, egg ... · Comparison of anchovy abundances estimated by trawls, egg production methods and acoustic surveys. Sukgeun Jung and

Comparison of anchovy abundances estimated by trawls, egg ... · Comparison of anchovy abundances estimated by trawls, egg production methods and acoustic surveys. Sukgeun Jung and

DEEP-SEA FISHERIES IN THE HIGH SEAS A trawl industry ... · Management of Deep-sea Fisheries in the High Seas and to solicit industry views and ... Midwater trawls 11 Bottom trawls

DEEP-SEA FISHERIES IN THE HIGH SEAS A trawl industry ... · Management of Deep-sea Fisheries in the High Seas and to solicit industry views and ... Midwater trawls 11 Bottom trawls

FAO Bottom Trawls Small Scale Fishing

FAO Bottom Trawls Small Scale Fishing

Dragged gearsDragged gears Dragged gear in the context of this document refers to bottom otter trawls, pair trawls and beam trawls. Bottom otter trawls encompass a large variety of

Dragged gearsDragged gears Dragged gear in the context of this document refers to bottom otter trawls, pair trawls and beam trawls. Bottom otter trawls encompass a large variety of

and · 2010-10-25 · Isaacs-Kidd mid-water trawls, neuston nets, Miller high-speed samplers and twin' Bongo nets. The Isaacs-Kidd mid-water trawls (IK6) were purchased from the Marinovitch

and · 2010-10-25 · Isaacs-Kidd mid-water trawls, neuston nets, Miller high-speed samplers and twin' Bongo nets. The Isaacs-Kidd mid-water trawls (IK6) were purchased from the Marinovitch

BATOID FISHES - Food and Agriculture Organizationpecosa. Size: 80 cm, common to 60 cm. Fishing gear: bottom trawls, trammelnets, hook-and-line. Habitat: shallow coastal waters to about

BATOID FISHES - Food and Agriculture Organizationpecosa. Size: 80 cm, common to 60 cm. Fishing gear: bottom trawls, trammelnets, hook-and-line. Habitat: shallow coastal waters to about

By-catch reducing trawls in the North East Atlantic …...R.B. Larsen 2006: By-catch reducing trawls in the North East Atlantic fisheries 2 A special focus has been set on the way

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6. 2018 Outlook and Management Strategy · 2018-05-22 · Summer Chum Commercial Management Strategy •Selective gear types to start: dip nets, beach seines (live release of Chinook)

6. 2018 Outlook and Management Strategy · 2018-05-22 · Summer Chum Commercial Management Strategy •Selective gear types to start: dip nets, beach seines (live release of Chinook)

A. by€¦ · Traditionally, sampling of small fish in reservoirs of the Columbia Basin has been conducted primarily with beach seines, purse seines, gill nets, trap nets, and two-boat

A. by€¦ · Traditionally, sampling of small fish in reservoirs of the Columbia Basin has been conducted primarily with beach seines, purse seines, gill nets, trap nets, and two-boat

Recommended operating guidelines (ROG) for MESH · PDF file Recommended operating guidelines for trawls and dredges 1. Introduction

Recommended operating guidelines (ROG) for MESH · PDF file Recommended operating guidelines for trawls and dredges 1. Introduction

Trawls & Dredges ROG - Mapping European Seabed Habitats (MESH)

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FISH CAPTURE CDHHITTEE · shrimp trawls on board a coastal stern trawler.Line trawls were also introduced in the Belgian fisheries. A new semi-pelagic trawl for smaller trawlers was

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Impacts of trawling and FISHERIES FAO TECHNICAL scallop … › 3 › y7135e › y7135e01.pdf · 2005-08-25 · Otter trawls, beam trawls and scallop dredges are likely to have different

Impacts of trawling and FISHERIES FAO TECHNICAL scallop … › 3 › y7135e › y7135e01.pdf · 2005-08-25 · Otter trawls, beam trawls and scallop dredges are likely to have different

AN ALTERNATIVE DESIGN OF TRAWLS FOR OFFSHORE … · PO Box 1390, Skulagata 4 120 Reykjavik, Iceland Final Project 2001 AN ALTERNATIVE DESIGN OF TRAWLS FOR OFFSHORE FISHING IN VIETNAM

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Groundfish Survey Trawls Used at the Northwest ...

Groundfish Survey Trawls Used at the Northwest ...