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Frontiers | Do Gray Whales Count Calories? Comparing Energetic Values of Gray Whale Prey Across Two Different Feeding Grounds in the Eastern North Pacific

Frontiers | Do Gray Whales Count Calories? Comparing Energetic Values of Gray Whale Prey Across Two Different Feeding Grounds in the Eastern North Pacific
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Hormone metabolites found in poop give researchers new insight into whale stress


Poop samples are an effective, non-invasive tool for monitoring gray whale reproduction, stress and other physiological responses, a new study from Oregon State University shows.
Researchers from OSU’s Geospatial Ecology of Marine Megafauna Laboratory collected 158 fecal, commonly known as poop, samples from Eastern North Pacific gray whales off the coast of Oregon between 2016 and 2018 and used the samples to assess endocrine levels and establish hormone baselines for stress and reproduction in the animals.
The study is believed to be the first to use fecal samples as an endocrine assessment tool in Eastern North Pacific gray whales. Fecal samples can provide a wide range of important information about whale health in a noninvasive way, said Leigh Torres, an associate professor in OSU’s Marine Mammal Institute and director of the GEMM Lab. ....

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Hormone metabolites found in poop give researchers new insight into whale stress


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IMAGE: Oregon State University researchers are studying gray whales along the Oregon Coast. Images and data collected under NOAA/NMFS permit #21678.
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Credit: Oregon State University Marine Mammal Institute
NEWPORT, Ore. - Poop samples are an effective, non-invasive tool for monitoring gray whale reproduction, stress and other physiological responses, a new study from Oregon State University shows.
Researchers from OSU s Geospatial Ecology of Marine Megafauna Laboratory collected 158 fecal, commonly known as poop, samples from Eastern North Pacific gray whales off the coast of Oregon between 2016 and 2018 and used the samples to assess endocrine levels and establish hormone baselines for stress and reproduction in the animals. ....

Oregon State University , United States , Seattle Aquarium , Amy Olsen , Leila Soledade Lemos , Shawn Larson , Todd Chandler , Angela Smith , Leigh Torres , Brazil Science Without Borders Program , Pacific Coast Feeding Group , Oregon State Department Of Fisheries , Florida International University , Marine Mammal Institute , Technology Ocean Acoustics Program , Technological Development Cnpq , National Council For Scientific , National Marine Fisheries Service Office Of Science , Geospatial Ecology Of Marine Megafauna Laboratory , Marine Megafauna Laboratory , Eastern North Pacific , Mammal Institute , Oregon State , Florida International , Marine Fisheries Service Office , Oregon Sea Grant ,