Finding Nemo Where were your fish last night?

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ANNA STURROCK 2 8 th M a r c h 2 0 1 3

OUTLINE • • • • • • •

Why should we care about fish? What about your fish? Why & how do we track fish? Fabulous flatfish Stupendous salmon Where to next? What can you do?

• Dissection time!

Why do we

care about fish?

• Catch worth $80 B/yr…but industry worth $246 •

B/yr!

>> 400 million people depend on fish for livelihood, protein, minerals.

• In 2011, consumption hit a record high of 37 pounds / person / yr. • On average, people eat 4x more than in 1950.



~85% of stocks are over-exploited, depleted, fully exploited or in recovery.

• Artisanal fishing lands 50% of catch, but provides 90% of the jobs. Sources:

http://en.wikipedia.org/wiki/Fishing_industry www.cbc.ca/news/technology/story/2010/09/14/fisheries-global-value.html www.bbc.com/future/story/20120920-are-we-running-out-of-fish

care about fish?

OVERFISHING

Why do we

http://commons.wikimedia.org/wiki/File:Atlantic-Cod-Stocks.jpg

POLLUTION

Why do we

care about fish?

HABITAT DESTRUCTION

Why do we

care about fish?

What about your fish?

Salmon generate $30-50 million /yr for California (CDFW 2001) Aquatic resources generate ~$4 Billion/year for USA (USFWS 2011)

What about your fish?

What about your fish? Supply

Demand

Annual Rainfall (inches)

What about your fish?

1902 Mission: Irrigate, make productive and reclaim the arid lands of the American West

What about your fish?

“THE FOUR Hs”

What about your fish? Harvest

Habitat

Hatcheries

Hydroelectric

BIOCOMPLEXITY

Why do we

track fish?

BIOCOMPLEXITY

Why do we

track fish?

BIOCOMPLEXITY

How

do we track fish?

How

do we track fish?

How

do we track fish?

Satellite Archival tags tags

Markrecapture

By eye

How

do we track fish?

http://tagagiant.org/

Fa b u l o u s f l a t f i s h

© CEFAS

Fa b u l o u s f l a t f i s h

http://news.nationalgeographic.com/news/bigphotos/images/080709-evolution-fish_big.jpg

How

do we track fish?

Satellite Archival tags tags

Markrecapture

By eye

Otoliths Otoliths (“earstones”)

c/o Dr Stephen Wing (University of Otago, NZ)

Otoliths From birth Sectioned

Otolith from the shortraker rockfish (aged 90-115 years) http://oregonstate.edu/terra/wp-content/uploads/2012/01/splitnose_otolith_cross_sec.jpg

Otoliths To death

Stupendous salmon

http://scienceblogs.com/zooillogix/2008/11/13/monstrous-chinook-salmon-found/

Stupendous salmon

San Joaquin basin 80,000

Escapement

70,000 60,000

WETTER IS BETTER!

Escapement Flow 2 yrs prior

35,000 30,000 25,000

50,000

20,000

40,000

15,000

30,000 20,000 10,000 0

10,000 5,000

Flow 2 years previous (cfs)

90,000

0

Sources: CDEC, GrandTab (CDFW)

BIOCOMPLEXITY

Juvenile outmigration

http://www.streamnet.org/SLCsmolts.html

San Joaquin basin

Juvenile outmigration

The “tracking device”

87 Sr/ 86 Sr

ISOSCAPE

The “tracking device”

Hobson, K., Barnett-Johnson, R., and Cerling, T. 2009. Using isoscapes to track animal migration. In: West, J. Bowen, G., Dawson, T., and K. Tu (eds.) Isoscapes: Understanding movement patterns and processes on earth through isotope mapping. Springer Press, Berlin, Germany

87 Sr/ 86 Sr

ISOSCAPE

The “tracking device”

87 Sr/ 86 Sr

ISOSCAPE

The “laser ” Adult (ocean) Juvenile (FW) Maternal

J

A

(ocean)

87 Sr/ 86 Sr

ISOSCAPE

M

Distance across otolith (µm)

W h a t c a n yo u d o ?

http://www.dfg.ca.gov/

www.noaa.gov

http://science.kqed.org/quest/delta-map/

W h a t c a n yo u d o ?

W h a t c a n yo u d o ?

http://www.montereybayaquarium.org/cr/seafoodwatch.aspx

W h a t c a n yo u d o ?

www.fairsharecsf.com www.sfcfa.com www.twoxsea.com http://savethestan.com/

www.fishrevolution.org

O C TO B E R 2 6 t h 2 0 1 3 !

www.goodeggs.com

www.carapacefishing.com

Ta ke h o m e m e s s a g e s • Fish are not (just) food! • We know a fraction of what is going on under the surface • What we do know is that they can be complex, clever creatures • And they are seriously

threatened (Tragedy of the Commons)

• Salmon in particular (Hatcheries, Habitat, Hydroelectricity, Harvest) • Learn & think about our food & environment • Pressurize politicians to make

• Otoliths are awesome

tough decisions

Acknowledgements HUGE thanks to the following collaborators and funding bodies: Rachel Johnson (USBR, UCSC), George Whitman (UCSC), Justin Glessner (UCD), JD Wikert & Carl Mesick (USFWS), Tim Heyne, Gretchen Murphy & Crystal Sinclair (CDFW), Peter Weber (LLNL), Cramer Fish Sciences, Ewan Hunter (CEFAS), Barry & Hannah Lewis (FAMILY) CDFW, USFWS, USBR, UCSC, CEFAS

Hapuku Fish Shop for the fish heads! Ramona & Jason for having me and organizing tonight!

A n d T H A N K YO U f o r c o m i n g !

Questions?

Image sources Money fish Overfishing Pollution

Habitat

Your fish

Tracking

http://www.okeanosgroup.com/blog/wp-content/uploads/2012/05/url8.jpg http://2.bp.blogspot.com/-X6vjxQpo-Iw/T01AXllvq6I/AAAAAAAAAD4/SDrJ6vrJhWI/s1600/2050.gif http://www.animalspot.net/wp-content/uploads/2011/11/Atlantic-Cod.jpg http://www.keaconservation.co.nz/images/stories/overfishing.2.jpg http://www.toomanymornings.com/wp-content/uploads/2010/06/huge-oil-slicks.jpg http://switchboard.nrdc.org/blogs/aalexander/deadzone2.jpg http://www.dailygalaxy.com/photos/uncategorized/2007/12/30/plastic_ocean_trash_5.jpg http://www.anotherdamnblog.com/images/2009/06/pollution2_mid.bmp http://www.habitatadvocate.com.au/wp-content/uploads/2011/08/bottom-trawling1.jpg http://upload.wikimedia.org/wikipedia/commons/c/c5/Oroville_dam.jpg http://www.marineclean.com/images/intelli/riprapcon_6.jpg http://www.xray-mag.com/files/DynamiteFishing.jpg http://www.dundeesportsmansclub.com/dundee%20pic/Chinook_Salmon_Pic.jpg http://www.wrsc.org/attach_image/californias-looming-drought http://axisoflogic.com/artman/uploads/1/ba-fishkill_pumps475_1.JPG http://noyonews.net/wp-content/uploads/2012/09/troubled-waters02-2.jpg http://ivn.us/2012/09/24/bay-delta-conservation-plan-could-tunnel-california-funds/ http://content.lib.washington.edu/cgi-bin/getimage.exe?CISOROOT=/cobb&CISOPTR=40&DMSCALE=100.00000& DMWIDTH=802&DMHEIGHT=534.66666666667&DMX=0&DMY=0&DMTEXT=&REC=1&DMTHUMB=0&DMROTATE=0 http://2.bp.blogspot.com/_saKQ607KvoI/TKsAyvhOKeI/AAAAAAAADtg/n0BmuM6GIIw/s1600/salmon+hatchery.jpg http://www.justice.gov/enrd/3236.htm http://www.economist.com/node/14699639 http://algoesalgo.files.wordpress.com/2010/05/ca_dams.png http://stream2.cma.gov.cn/pub/comet/Climate/Jason2UsingSatelliteAltimetrytoMonitortheOcean/comet/EUMETSAT/jason/print.htm

http://www.kunstinargentinien.com/images/2006/07/lopez2.jpg http://images.pictureshunt.com/pics/p/pacman_game-1973.gif

Image sources Tracking

Selfie Salmon

What next

Happy fish

http://www.activatenetworks.net/assets/Uploads/Images/_resampled/resizedimage600289-eigenvector.blog.png http://nas-sites.org/us-ipy/files/2012/03/Seal_W_Tag-3A.jpg http://www.aviationnews.eu/blog/wp-content/uploads/2011/10/gpsIII-satellite.jpg http://www.astrochem.org/sci_img/dna.jpg http://wildfox.typepad.com/.a/6a016305acd54a970d017616b46a53970c-800wi http://tripatlas.com/p/59126/fee7b49080727232f1421b1683c7e2ab.jpg http://sfbayimages.smugmug.com/Other/Golden-Gate-Bridge-Black-White/10021808_tZmsJj#!i=686118323&k=99LggSw http://www.critfc.org/wp-content/uploads/2012/10/salmon_lifecycle.png http://farm3.static.flickr.com/2693/4357858747_751fe82ca7_o.jpg http://www.usbr.gov/pmts/tech_services/tracy_research/photos/fish/chinook_salmon_smolt_stage.jpg http://www.theguidesforecast.com/pic/05031181.jpg http://blog.oregonlive.com/breakingnews/2008/05/ChinookSalmon.jpg http://www.miseagrant.umich.edu/wp-content/blogs.dir/1/files/fish/chinook-salmon-male-dan-okeefe.jpg http://www.acmedata.in/wp-content/uploads/2012/12/Dr-Evil-Austin-Powers.jpg http://www.vetmed.vt.edu/education/curriculum/vm8054/labs/lab14/IMAGES/FINGERPRINT.jpg http://beamesonfilm.blogspot.com/2012/01/filmquest-2012-630-chinatown.html http://farm4.static.flickr.com/3011/3067716391_70dec4dbf8.jpg http://www.uswaternews.com/images/Waterwars.jpg http://newsbusters.org/static/2009/06/Congress%20Created%20Dust%20Bowl.jpg http://2.bp.blogspot.com/_eA9LSyhRzc0/Ry6mhHiRxDI/AAAAAAAAAF8/6jdUdBWfsLY/s320/TV_Addict.jpg http://media.tumblr.com/tumblr_lv2gjcZx1t1qg3f6y.jpg http://cdn.c.photoshelter.com/img-get/I0000MGEJZNELCZU/s/750/750/CHINOOK-SALMON-JUMP.jpg