Skip to main content

Avian Influenza Detected at Año Nuevo State Park

A small number of young northern elephant seals at Año Nuevo State Park recently tested positive for H5N1, also known as bird flu. This is the first detection of H5N1 in California’s marine mammal population.

The risk of H5N1 to the public remains very low. We’re sharing guidance on how to protect yourself, your pets and marine mammals – and how you can help.

Learn more
Elephant seal
harbor porpoise

Harbor Porpoises Catching and Handling Large Fish

Harbor Porpoises (Phocoena phocoena vomerina) Catching and Handling Large Fish on the U.S. West Coast
  • Behavior

Abstract

This short note provides unique insights into previously undocumented harbor porpoise behavior and diet. We document the addition of two new species as harbor porpoise prey items along the U.S. West Coast (pink salmon and American shad) and one in the Salish Sea (coho salmon, salmonid so). Little research on this species has focused beyond group size, population abundance/distribution, presence/absence in relation to use of specific habitats (Elliser et al., 2018), and mating behavior (Keener et al., 2018); thus, wild harbor porpoise behavior remains poorly understood. Reports such as this are important to improve our knowledge of this difficult to observe species and highlight the need for further research and monitoring to fully understand their behavioral repertoire and ecological relationships.


Elliser, C.R., Hessing, S., MacIver, K. H., Webber, M. A., Keener, W., 2020. Harbor porpoises (Phocoena phocoena vomerina) catching and handling large fish on the U.S. West Coast. Aquatic Mammals, 46(2):191-199.

Meet The Experts

Related Publications

Related News