CALIFORNIA SEA LIONS USE DOLPHINS TO LOCATE FOOD

摘要: Abstract Aggregations by 3 species of dolphins (the bottlenose dolphin [Tursiops truncatus], the short-beaked common [Delphinus delphis], and long-beaked capensis]) California sea lions (Zalophus californianus) were investigated in Santa Monica Bay, California. Groups followed observed during 201 boat-based surveys conducted 1997–2001 documenting that aggregated 18.6% sightings with (150 sightings) 45.9% 1 2 (98 sightings). inshore ( 500 m) waters, whereas only offshore waters. These aggregations often recorded feeding near escarpments submarine canyons, showing a striking preference for these bathymetric features. The results show spend signi...