Dusky dolphin (Lagenorhynchus obscurus) feeding tactics and multi‐species associations
作者： Robin L. Vaughn , Deborah E. Shelton , Lori L. Timm , Leslie A. Watson , Bernd Würsig
DOI: 10.1080/00288330709509929
关键词: Fishery 、 Fur seal 、 Predation 、 Dusky dolphin 、 Bay 、 Shoaling and schooling 、 Multi species 、 Lagenorhynchus 、 Arctocephalus forsteri 、 Biology
摘要: Abstract In this study, monthly changes in dusky dolphin (Lagenorhynchus obscurus) feeding tactics and multi‐species associations Admiralty Bay Current Basin, New Zealand were described from August to November 2005 May through 2006. Concurrent abundance, prey characteristics, locations of bouts examined. Data collected during systematic surveys focal follows groups. During 335 (52 observed underwater), data recorded on number associated fur seal (Arctocephalus forsteri), seabirds, sharks; behaviour; ball parameters; locations. Dolphin tactics, associations, different July than November. From July, dolphins fed mobile at depth; November, they herded small schools fish (including pilchard Sardinops neopilchardus) the surface. Primarily shearwate...
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