Francis water seminar 2012
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Forage Fish in Puget Sound: Science to support Ecosystembased Management Tessa Francis, PhD [email protected]
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Transcript of Francis water seminar 2012
Forage Fish in Puget Sound: Science to support
Ecosystem-‐based Management
Tessa Francis, PhD [email protected]
Northern anchovy Engraulis mordax
Pacific herring Engraulis mordax
photo by Gene Kira photo by Walter Rung
Surf smelt Hypomesus pre3osus
photo by Frank Varga
Sand lance Ammodytes hexapterus
photo by Ground Truth Trekking
Puget Sound Forage Fish Species
BRANDON COLE / WWW.BRANDONCOLE.COM! Redorbit.com!
Fishingviedos.ocom!
0
3,000
6,000
9,000
12,000
15,000
18,000
1973 1978 1983 1988 1993 1998 2003 2008 2013 2018
TON
S
YEAR
Estimated Puget Sound herring spawning biomass by genetic grouping (1973-2011) with 2020 PSP targets.
All other stocks Squaxin Cherry Pt.
All other stocks combined target 13,500 tons
Cherry Point stock target 5,000 tons
Squaxin target 880 tons
Source: WDFW
Forage Fish in Puget SoundEcosystem-based Management!
Spawning beaches in Puget Sound
Source: WDFW
Herring eggs on eelgrass
Pacific herring
Jan Feb Mar April
Surf smelt
Surf smelt eggs on beach
Source: DOE
Summer Fall/Winter Year-‐round
Source: WDFW
Sand lance
Nov Dec Jan Feb
High-‐caliber rap video: “Overfishin’, overfishin’”
pewenvironment.org
“Twice as valuable in the water as in the net”
Direct value $5.6 billion
Suppor;ve value $11.3 billion
Source: LenFest Ocean Program: “LiZle Fish, Big Impact”
CA Sardine: 2010 33,800 mt 1985 ~300,000 mt
Source: WDFW
0
3,000
6,000
9,000
12,000
15,000
18,000
1973 1978 1983 1988 1993 1998 2003 2008 2013 2018
TON
S
YEAR
Estimated Puget Sound herring spawning biomass by genetic grouping (1973-2011) with 2020 PSP targets.
All other stocks Squaxin Cherry Pt.
All other stocks combined target 13,500 tons
Cherry Point stock target 5,000 tons
Squaxin target 880 tons
Source: WDFW
Source: WDFW
Beauchamp and Duffy 2011
Beauchamp and Duffy 2011
Alicia Young-‐Williams
Rhinoceros auklet 50% eat herring
25% eat sand lance 11% eat surf perch 3% eat surf smelt
Marbled murrelet 40% eat sand lance
Data source: ScoZ Pearson
Beauchamp and Duffy 2011
Alicia Young-‐Williams
Courtesy of Chris Harvey
Inverts
(+) (-‐)
Red = Posigve Black = Negagve
Solid = Direct Dashed = Indirect
Effects on forage fish
RaEish Rockfsh Salmon Birds Lingco Seals Dogfsh
FF
Demers Crab
Invert Zoops
RaEish Rockfsh Salmon Birds Lingco Seals Dogfsh
FF
Demers Crab
Invert Zoops
Red = Posigve Black = Negagve
Solid = Direct Dashed = Indirect
Effects of forage fish
www.eopugetsound.org
