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"Otolith "

Otolith Results

17 results match your filter criteria.

Salmon Life History Research in California’s Central Valley

Our team uses microchemical analyses to quantify salmon life history…
West Coast

Age and Growth Homework: Determining How Old Fish Are

Our scientists use technology and ingenuity to get their work done from…
July 02, 2020 - Feature Story ,
Alaska
Chris Gburski photo.

Accuracy and Precision of Fish Ages - Northeast

It is important to ensure consistency in fish ages used in fish population…
April 24, 2020 - Data Set ,
New England/Mid-Atlantic
Example graph showing test versus production age, where age pairs that agree lie along the main diagonal.

Age and Growth

NOAA Fisheries scientists assess the age and growth rates of fish species…
Columns of ear stones. Each column is from a different species. Otoliths from six species aligned at the core and ready to be sectioned. Photo: Sandy Sutherland, NOAA Fisheries.

Brodeur's Guide to Otoliths of Some Northwest Atlantic Fish

This second edition of Brodeur (1979) includes the original drawings of…
February 28, 2020 - Document ,
New England/Mid-Atlantic
Hand-drawn image of a cod earstone.

Age Determination Methods for Northwest Atlantic Species

This manual documents age determination techniques used by staff at the…
February 28, 2020 - Technical Memo ,
New England/Mid-Atlantic
A pair of earstones from a butterfish.

Reference Collections for Age Determination of select Northwest Atlantic Species

The Fishery Biology Program has photographs of our reference collections …
February 28, 2020 - Data Set ,
New England/Mid-Atlantic
Image of an earstone from a haddock, with dots to show the positions of the winter zones.

Precision Templates for Ageing

These templates were designed to automate the calculation of measures of…
February 26, 2020 - Tool/App ,
New England/Mid-Atlantic
Example graph showing test versus production age, where age pairs that agree lie along the main diagonal.

How to Request Samples from the Age-Structure Archive

Guidance for requesting a loan of age structures from the Northeast…
February 19, 2020 - Document ,
New England/Mid-Atlantic
A pair of ear stones from a butterfish.

Fish Life History Research in the Pacific

Effective fisheries management requires an understanding of fish growth…
Pacific Islands
Section of an otolith (ear bone) from a snapper used to estimate the age of the fish