Squid Overload: Berryteuthis magister in the Bering Sea Paige Drobny, UAF Brenda Norcross, UAF Nate Bickford, UAF.

Slides:

Advertisements

Similar presentations

My Background Presented By Tom Wooding Started fishing at age 8. Began fishing in Area M at 13. Became skipper at 18. Received a BSME at 22. Constructed.

Advertisements

Patterns of distribution and biology of the North Pacific oceanic squid Berryteuthis anonychus with implications for the species life cycle Oleg N. Katugin.

Seasonal and Interannual Variability of Peruvian anchovy Population Dynamics --progress report-- Yi Xu and Fei Chai June 2007.

Science Behind Sustainable Seafood Age Matters! Alaska Fisheries Science Center.

Bycatch composition differs between northern sites and southern sites. At the northern sites, horseshoe crab were associated with: little and winter skate.

Spatial distribution and ontogenetic movement of walleye pollock in the eastern Bering Sea Presenters: Troy Buckley, Angie Greig, James Ianelli, Patricia.

Analyses of Bering Sea bottom- trawl surveys in Norton Sound: Absence of regime shift effect on epifauna and demersal fish Toshihide “Hamachan” Hamazaki.

Investigating the Effect of Birth Date on Yellow Perch Mortality via Otolith Analysis Nate Gelinas, Nick Hirsch, Brian Stampfl, Phil Rynish, and Dr. David.

Black Sea Bass – Northern Stock Coastal-Pelagic/ASMFC Working Group Review June 15, 2010.

Age and Growth Growth & age patterns Measurement techniques.

+t ★ -t VARIABILITY IN THERMAL HABITAT DYNAMICS FOR A PELAGIC FORAGE FISH ESTIMATED BY COUPLING A THERMAL NICHE MODEL TO A HYDRODYNAMIC OCEAN MODEL Laura.

Marine Mammals Working Group Summary of Results Ihor Hlohowskyj North Aleutian Basin Information Status and Research Planning Meeting Minerals Management.

Information from Archival Tags on Salmon in the Bering Sea, Robert Walker, Kate Myers, Nancy Davis School of Aquatic and Fishery Sciences University.

NPAFC international cooperative research designates the distribution of Asian and North American chum salmon stocks in the Bering Sea and North Pacific.

Aquaculture of the Bluefin Tuna. Taxonomy Genus Thunnus Species: Maccoyii, Orientalis, Thynnus.

“Meso-Marine Ecosystems”: Management Units for the North Pacific? W. Sydeman 1, S. Batten 2, D. Hyrenbach 1, M. Henry 1, C. Rintoul 1, D. Welch 3, K. Morgan.

SIO 286 January 11, 2011 Answers to questions - collect Field trip waivers Turtle trip feedback Next week refreshments following class; volunteers.

1 THE ESTIMATION OF FISH LENGTH DISTRIBUTION FROM ITS ACOUSTIC ESTIMATES USING DUAL FREQUENCY APPROACH M. Moszynski and A.Stepnowski Gdansk University.

Flow, Fish & Fishing A Biocomplexity Project

Case Study - Dover Sole Range from Baja California to the Bering Sea. On mud or muddy-sand, at 35 to 1400 m depths. Feed on polychaete worms, shrimp, brittle.

Johan Hjort Symposium, Bergen, NO7 Oct Do eggs collected in surveys accurately reflect adult fecundities? Hannes Höffle 1, Frode B. Vikebø 1, Olav.

1 Indicators for fisheries management: a French experience Marie-Joëlle Rochet, Verena Trenkel, Jean- Charles Poulard, and Jacques Bertrand Robert Bellail,

Age-structured assessment of three Aleutian fish stocks with predator-prey interactions Doug Kinzey School of Aquatic and Fishery Sciences University of.

Energy density of Steller sea lion prey in western Alaska: species, regional, and seasonal differences Elizabeth A. Logerwell 1 and Ruth A. Christiansen.

Science Behind Sustainable Seafood Population Estimation Alaska Fisheries Science Center.

Fishery Management Fishing is extractive – Removes choices organisms- “ fine-ing ” – Changes food web structure The human condition provides little incentive.

Megan Stachura and Nathan Mantua University of Washington School of Aquatic and Fishery Sciences September 8, 2012.

Studying Treeline to Assess Climate Change By Jasmine McBeath Mentors: Dr. Lisa Graumlich Greg Peterson Erika Rowland.

Fishery Management Fishing is extractive – Removes choices organisms- “ fine-ing ” – Changes food web structure The human condition provides little incentive.

Developing a statistical-multispecies framework for a predator-prey system in the eastern Bering Sea: Jesús Jurado-Molina University of Washington Jim.

Distribution and Migration of cod, the impact of climate Geir Ottersen Institute of Marine Research, Bergen, Norway and Douglas P. Swain Department.

NABOS: observational program in the high Arctic Vladimir Ivanov IARC UAF, Fairbanks, Alaska, USA AARI, St. Petersburg, Russia Summer school onboard R/V.

Estimation of age-specific migration in an age-structured population dynamics model of Eastern Bering Sea walleye pollock (Theragra chalcogramma) Sara.

Maximum likelihood estimates of North Pacific albacore tuna ( Thunnus alalunga ) von Bertalanffy growth parameters using conditional-age-at-length data.

Global warming and fish stocks: Winter spawning of Baltic sprat (Sprattus sprattus) as a possible future scenario Gerd Kraus1, Volker Mohrholz3, Rüdiger.

Nearshore fish communities response to habitat variability Terril P. Efird School of Fisheries and Ocean Sciences University of Alaska Fairbanks.

Spatial Fisheries Values in the Gulf of Alaska Matthew Berman Institute of Social and Economic Research University of Alaska Anchorage Ed Gregr Ryan Coatta.

Introduction Greenland halibut (Reinhardtius hippoglossoides; GH) have declined significantly since the 1970’s in the eastern Bering Sea (EBS). The reasons.

Fish Habitat and Otolith Chemistry By Nate Bickford and Brenda Norcross.

Vertical distribution of ontogenetically migrating copepods in the Western Subarctic Gyre T. Kobari 1, D. K. Steinberg 2, S. Wilson 2, K. Buesseler 3,

U.S. Beaufort Sea Fish Communities Brenda L. Norcross and Lorena E. Edenfield School of Fisheries and Ocean Sciences University of Alaska Fairbanks Photo.

A Major Climate/Ecosystem Shift Observed in the Northern Bering Sea James E. Overland1, Jacqueline M. Grebmeier2, Sue E. Moore3, Ed V. Farley4, Eddy C.

CIAC, Hobart, 2006 Statolith and gladius aging of the Southern Arrow Squid (Nototodarus sloanii) Jean F. McKinnon Department of Marine Science, University.

Jennifer M. Marsh M.S. Fisheries Student School of Fisheries and Ocean Sciences University of Alaska Fairbanks.

Jack mackerel (Trachurus murphyi) distribution peculiarities in the high seas of the South Pacific in relation to the population structure Soldat V.T.,

Overview of NMFS AFSC Field Activities Alaska Fisheries Science Center 7600 Sand Point Way NE Seattle, WA.

INCOFISH WP5 MPAs on Continental Shelves Fisheries and Ecosystem Management.

California Seacucumber Parastichopus californicus.

Comparative analysis of the community structure and trophic relations of the Peruvian hake Merluccius gayi peruanus and its by-catch of the years 1985.

The Influence of Spatial Dynamics on Predation Mortality of Bering Sea Walleye Pollock Pat Livingston, Paul Spencer, Troy Buckley, Angie Greig, and Doug.

Analysis of Walleye Growth, Movement and Habitat Quality in Lake Erie, Wang, H.-Y., 1 Rutherford, E.S., 2 Haas, R.C., and 3 Schwab, D. J. Lake.

1 Federal Research Centre for Fisheries Institute for Sea Fisheries, Hamburg Hans-Joachim Rätz Josep Lloret Institut de Ciències del Mar, Barcelona Long-term.

1 Assessing Vulnerability of Living Marine Resources in a Changing Climate Roger Griffis Climate Change Coordinator, NOAA Fisheries Service.

Introduction Egg production in copepod species may be the largest component of copepod production and is a parameter routinely monitored in ecosystem studies.

Distribution and connectivity between spawning and settling locations of Greenland halibut (Reinhardtius hippoglossoides) in the Bering Sea Dongwha Sohn.

Warming climate alters the biogeography of the southeast Bering Sea 1 Joint Institute for the Study of the Atmosphere and the Oceans, University of Washington.

The predatory role of the commander squid, Berryteuthis magister, in the eastern Bering Sea ecosystem Mary Hunsicker, Timothy Essington, Kerim Aydin and.

U.S.-China LMR Bilateral, June 13, 2011 NOAA Research to Understand the Ecological, Biodiversity, and Fisheries Impacts of Ocean Acidification Dr. Rusty.

PARTICIPANTS NCMR (Responsible Institute), IMBC [Greece] IREPA[Italy] U. Barcelona, U. Basque, UPO[Spain] EFIMAS MEETING NICOSIA CRETE 2004 APRIL

North Pacific Climate Regimes and Ecosystem Productivity (NPCREP) NOAA Fisheries Ned Cyr NOAA Fisheries Service Office of Science and Technology Silver.

Arctic Waterways Safety Committee Doug DeMaster NOAA 10 Dec 2015.

Population Dynamics and Stock Assessment of Red King Crab in Bristol Bay, Alaska Jie Zheng Alaska Department of Fish and Game Juneau, Alaska, USA.

Linking seasonal migratory patterns with prey availability in Steller sea lions Jamie N. Womble 1, Michael F. Sigler 2, Mary F. Willson 3 1 National Park.

Sea Surface Temperature as a Trigger of Butterfish Migration: A Study of Fall Phenology Amelia Snow1, John Manderson2, Josh Kohut1, Laura Palamara1, Oscar.

Morgan M. Corey1, Nancy J. Brown-Peterson2, Robert T. Leaf1, Samuel D

Determining Population Size

Ocean temperatures are projected to rise by 1. 4°C by 2050 and 2

Alternatives for updating AEQ analysis and prioritizing data needs

Incidental Crab Catch in Groundfish Fisheries

Climate Change and Alaskan Fisheries

Presentation transcript:

Squid Overload: Berryteuthis magister in the Bering Sea Paige Drobny, UAF Brenda Norcross, UAF Nate Bickford, UAF

Berryteuthis magister Magister armhook squid  Hooks on their arms  Maximum recorded length = 43 cm DML  Weight to 2.6 kg  Up to 2 year life cycle  Die after spawning  Sexual dimorphism  Central to the ecosystem food web  Temperature sensitive: good bioindicator! Photo credit Alaska Fisheries Science Center

Distribution Modified from Okutani et al  Pelagic up to 1000 m  Associated with the continental shelf  Diel migrations  Ontogenetic shifts  Subspecies  B. magister nipponensis  B. magister shevtsovi Kubodera 1982

Housed in statocyst with endolymph fluid Controls orientation in space Daily rings Take up trace elements in relative proportion as the surrounding water mass The role of statoliths in squid

Bering Sea Stabeno and Reed 1994

Objectives 1.To establish age and growth patterns for Bering Sea B. magister and determine if there are changes in age and growth across the Bering Sea. 2.Use statolith chemistry to determine past movement patterns of individual B. magister. 3.Use statolith chemistry to combine B. magister into stock units, to develop a stock movement pattern.

Western Bering Sea study on B. magister Dispersed during summer September and October formed large dense schools over the continental shelf Stock stucture: Summer-hatched Fall-hatched Winter-hatched Growth, maturation, and mortality rates varied among seasonal cohorts Each cohort used the same areas for different portions of the life cycle Arkhipkin et.al, 1996

Growth Obtain length and weight Age Polished both sides with water on fine grit paper Magnify 100x to count daily rings LA-ICP-MS Core = hatch location Edge = capture location Transect =movement through lifetime Methods Core line Edge line Transect line

Opportunistic sampling locations 2004 samples (numbered locations) collected from the Bering Sea Slope survey (AFSC/NMFS)- June to August 2006 samples (red triangle) caught as bycatch in pollock trawls -September Northern Central Southern

Size Distribution

Results

Max Age =188 days

Age = days Age = days Age = days Age = days Age = days Age = days

2006

Location 22/ southern Location 180/ central Location 115/ northern

2004 samples

2006 samples

BM1 BM182 BM10 BM219

Conclusions Squid in the Eastern Bering Sea may only live up to one year Two cohorts are present in 2004 At least 2 natal areas are represented by the 2 different cohorts Squid are moving to the continental shelf from a natal area Northern Central Southern

Acknowledgements North Pacific Research Board Dr. George Jackson, U. Tasmania Dr. Ron O’Dor, Census of Marine Life Mary Hunsicker, U. Washington NMFS