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Sustainable fishery predictor

Jan. 15, 2015--University of Delaware researcher Jonathan Cohen is using a new technology to analyze and quantify zooplankton in the Delaware Bay.

Zooplankton are millimeter to centimeter scale organisms that live in water. A diverse and ecologically significant group of animals, they range in size from small copepods the size of a grain of rice to large jellyfish.

In the Delaware Bay, zooplankton contain the larvae of commercially important species, including oysters, crabs, shrimp and various finfish, and are considered an important measure of fishery sustainability. They are also a key food source in the marine food web.

“People forget that marine organisms aren’t just adults; they are eggs and larvae that are dispersed in the water column, then become juveniles and adults,” explains Cohen, assistant professor of marine science and policy in the College of Earth, Ocean, and Environment (CEOE).

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