Dolphins & Porpoises

Dolphins and porpoises are small, toothed whales belonging to a group of marine mammals called cetaceans. All are protected under the Marine Mammal Protection Act and some are also listed under the Endangered Species Act. We work with our partners to study, protect, and conserve these iconic species.

Species News

Person looking through binoculars Researchers search the Gulf of California for some of the last remaining vaquita, a highly endangered species of small porpoise.


Southwest Fisheries Science Center Stock Assessment

Population assessments are a key component of marine resource management. These assessments allow us to evaluate and report the status of managed fisheries, marine mammals, and endangered/threatened species under the authorities of the Magnuson-Stevens…

Peer-Reviewed Research

Publications by Northeast Passive Acoustic Research Staff

Our staff regularly publish their findings in scientific journals and Center-produced documents…

Passive Acoustics Research Group News & Media

Our Passive Acoustics Research Group frequently makes the news. This page links to articles and other media featuring our staff and their research.

Marine Mammal Strandings in San Diego County

Responding to dead whale, dolphin, porpoise, and pinniped strandings


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