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"Age and Growth"

Age and Growth Results

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Alaska Fisheries Interaction Team Atka Mackerel Tagging Studies

The Status of Stocks and Multispecies Assessment Program, Fishery Interaction Team, was formed to investigate the effects of commercial fishing on top trophic level consumers.
Alaska
Yellow fish swimming near coral

Arctic Cod (Boreogadus Saida) Age and Growth Research

* The information in this document has not been subjected to formal peer review. Please use footnotes and the following format when citing this document: Stone, K.R., J.P. Harris, and C.E. Piston. 2019. Arctic cod (Boreogadus saida). Resource Ecology and Fisheries Management Division, Alaska Fisheries Science Center, NMFS, NOAA, 7600 Sand Point Way NE, Seattle WA 98115.
May 17, 2019 - Agreements ,
Alaska

Age Determination Manual of the Alaska Fisheries Science Center Age and Growth Program

At the NOAA Fisheries Alaska Fisheries Science Center (AFSC), fish age data, including catch-at-age data collected from commercial fisheries and population age compositions estimated from scientific bottom trawl surveys, are used to develop age-structured stock assessment models. These models evaluate the overall health of fish populations and guide fishery managers in setting sustainable catch limits.
August 27, 2018 - Other Reports ,
Alaska

Innovative Technology Promises Fast, Cost-Efficient Age Data for Fisheries Management

New technology promises fast age data.
July 30, 2018 - Feature Story ,
Alaska
Innovative_Technology_Promises - HeroImage.jpg

Age and Growth Otolith Collections Ageing Methods

These pages give summaries of ageing methods (surface, break and burn, or section) used to age fish otoliths. Result tables can be viewed showing the numbers read using each method, by year collected, by year read, or by individual collections. Results include specimens collected as far back as 1980 and are updated daily around midnight. To get started select a species and whether you want to see results by year collected or by year read.
May 09, 2018 - Database ,
Alaska
Buttterfish otoliths.png

Alaska Fisheries Science Center Otolith Collection Database

This database is an inventory of fish ageing samples (otoliths) from the Bering Sea, Aleutian Islands, and Gulf of Alaska collected and aged by the Alaska Fisheries Science Center. The database includes otoliths from Resource Assessment and Conservation Engineering (RACE) surveys and the North Pacific Groundfish Observer Program domestic and foreign collections. Survey collection inventories contain records from 1971 to present, although the exact number of samples collected is only available from 1986 to present. Foreign observer records are available from 1982 to 1990 and domestic observer records are from 1986 to present.
May 09, 2018 - Database ,
Alaska

Alaska Age And Growth Data Map

This interactive map displays collected specimen information from recent age and growth studies from Alaska Fisheries Science Center.
May 09, 2018 - Map ,
Alaska

Fish Otolith Chronologies

Fish otoliths and other hard parts that form annual growth increments (annuli) in marine organisms act as natural chronometers.
Alaska
Trees with no leaves in the woods against a blue sky

Alaska Fisheries Interaction Team

The Status of Stocks and Multispecies Assessment Program, Fishery Interaction Team, was formed to investigate the effects of commercial fishing on top trophic level consumers.
Alaska
Man in orange suit in front of a bin of caught fish, water and hills in background.

Alaska Food Web Research

A key area of fisheries and ecosystem research is collecting and analyzing data about food chains in the North Pacific. Data are put into environmental assessments, and single-species and multispecies models so we can better understand the relationships between organisms, and to their physical surroundings.
Alaska
Flatfish with spots on seafloor around sea stars