Open Access Open Access  Restricted Access Subscription Access

Marine Mammal and Sea Turtle Sightings During a Survey of the Endeavour Segment of the Juan de Fuca Ridge, British Columbia

Meike Holst


Marine mammals and sea turtles were documented as part of a monitoring and mitigation program during a seismic study offshore (~250 km) from Vancouver island, British Columbia, during August–September 2009. Forty-one marine mammals in nine groups were sighted. Dall’s Porpoise (Phocoenoides dalli) was the most frequently sighted species. A Sperm Whale (Physeter macrocephalus), a pod of Pacific White-sided Dolphins (Lagenorhynchus obliquidens), an unidentified toothed whale, a Northern Elephant Seal (Mirounga angustirostris), and a leatherback Turtle (Dermochelys coriacea) were also observed. These data augment current knowledge on the occurrence of marine mammals and sea turtles in the offshore waters of British Columbia.


Dall’s Porpoise; Phocoenoides dalli; leatherback Turtle; Dermochelys coriacea; Northern Elephant Seal; Mirounga angustirostris; Sperm Whale; Physeter macrocephalus; Pacific White-sided Dolphins; Lagenorhynchus obliquidens; seismic survey; marine mammal

Full Text:



Volumes that are more than six years old are freely available courtesy of the Biodiversity Heritage Library.


Questions or problems with the website? Contact William Halliday (info -at- canadianfieldnaturalist -dot- ca).