Program and Agenda

Abstract

SEASONAL FISH GROWTH AND MORTALITY DURING COLD AND WARM YEARS IN THE EASTERN BERING SEA

One of the main efforts of the Bering Sea Integrated Ecosystem Research Program is to synthesize current knowledge of climate, oceanography, lower trophic levels and fish dynamics into a high resolution spatial model geared to hypotheses testing and forecasts under different climate scenarios. We conducted multi-year simulations from 2004 to 2009. Here, we present compared seasonal growth and mortality for pollock during cold and warm years as modeled by the fish portion FEAST (Forage-Euphausiid Abundance in Space and Time), as well as the corresponding environment in terms of temperature and prey available. FEAST models 15 fish species linked to 5 zooplankton groups and 20 fisheries specified by sector, gear and target species. Species include walleye pollock, Pacific cod, arrowtooth flounder, salmon, capelin, herring, eulachon, sandlance and myctophids, squids, shrimp and epifauna; these have a two-way interaction with five groups from the Nutrient Phytoplankton Zooplankton module: small copepods, oceanic/shelf copepods, and oceanic/shelf euphausiids. The physical oceanography is modeled by a Regional Ocean Modeling System for the Bering Sea and provides temperature and advection to FEAST and NPZ.

ePoster: http://www.eposters.net/pdfs/seasonal-fish-growth-and-mortality-during-cold-and-warm-years-in-the-eastern-bering-sea.pdf

Authors

Ortiz, I., School of Aquatic and Fishery Sciences, University of Washington, USA, ivonne@u.washington.edu

Aydin, K., Alaska Fisheries Science Center, NOAA, USA, kerim.aydin@noaa.gov

Hermann, A., Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, USA, Albert.J.Hermann@noaa.gov

Gibson, G., International Arctic Research Center, University of Alaska Fairbanks, USA, ggibson@iarc.uaf.edu

Details

Poster presentation

Session #:088
Date: 2/24/2014
Time: 16:00 - 18:00
Location: Poster/Exhibit Hall

Presentation is given by student: No

PosterID: 1147