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Marine biologist Tom Jefferson stands in front of two models of a cetaceans, a humpback dolphin and a pygmy killer whale
A pink and gray mottled humpback dolphin rises from the surface of the water


Clymene Enterprises conducts conservation, education, and public awareness activities on behalf of marine mammals.  Our primary goal is to help prevent the extinction of endangered species, and also to encourage government agencies to provide adequate protection for marine mammals so that long-term persistence of healthy marine mammal populations can be maintained.


Since 2009, Clymene Enterprises has worked with the non-profit ¡VIVA Vaquita! on efforts to prevent the impending extinction of the vaquita (Phocoena sinus), a small porpoise species endemic to the northern Gulf of California, Mexico, which is being decimated by gillnet mortality.  The vaquita is currently the world’s most endangered marine mammal species, with an estimated <15 individuals left in the wild, and none in captivity.  More information on ¡VIVA Vaquita! and its activities can be found at


Dr. Jefferson also gives several public lectures on marine mammal conservation annually, and occasionally acts as a naturalist on whale-watching and marine ecotourism trips in various parts of the world.  He has authored several popular articles on marine mammals to help raise awareness related to these animals.




American Cetacean Society

Animal Welfare Institute

Center for Biological Diversity

Center for the Study of Deserts and Oceans (CEDO)

Cetos Research Organization

Convention on Migratory Species Scientific Council

Disney Worldwide Conservation Fund

Hong Kong Dolphin Conservation Society

IUCN Species Survival Commission’s Cetacean Specialist Group

Muskwa Club

Natural Resources Defense Council

Ocean Park Conservation Foundation

Save the Whales

Sea World/Busch Gardens Conservation Fund

Searcher Natural History Tours

Taiwanese White Dolphin Advisory Panel



¡VIVA Vaquita!

Whale and Dolphin Conservation

World Wildlife Fund

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