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Bering Sea study finds prey density more important to predators than biomass


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This thick-billed murre is part of a Bering Sea study published in PLOS ONE looking at the importance of prey "patchiness." Credit: Photo courtesy Kelly Benoit-Bird, Oregon State University
Marine resource managers often gauge the health of species based on overall biomass, but a new study of predator-prey relationships in the Bering Sea found that it isn't the total number of individuals that predators care about – it's how densely they are aggregated.

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