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Biologist Joel Llopiz examning fish scales.

Biologist Joel Llopiz examning fish scales.
Biologist Joel Llopiz examning fish scales.
Biologist Joel Llopiz examning fish scales.
Biologist Joel Llopiz examning fish scales.
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Cojanu, Daniel
Biologist Joel Llopiz examning fish scales.
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07/18/2013
IMG_2042_photo_DanielCojanu.JPG
Caption from Oceanus magazine, vol. 50, no. 2, page 35:
A NOAA facility in Pocasset, Mass., preserves a wide range of specimens collected in annual fisheries surveys. It includes haddock scales (top), which WHOI biologist Joel Llopiz (right) is examining to unravel changes in the ocean ecosystem and fisheries on Georges Bank.
Image Of the Day caption:
WHOI biologist Joel Llopiz holds a single haddock scale collected in the 1930s, one of millions of fish scales filed at the NOAA Northeast Fisheries Science Center in Woods Hole. By analyzing the proportions of carbon and nitrogen isotopes in the scales, Llopiz and colleague Simon Thorrold are learning about what the fish were eating and whether changes to their ecosystem might be contributing to recent declines in the fisheries. The NOAA facility collects and catalogs more than 100,000 samples from over 30 commercially important fish species every year.
Photo by Daniel Cojanu
© Woods Hole Oceanographic Institution
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