[MARMAM] New publication on Norwegian killer whales

A. Mel Cosentino orcasestrecho at gmail.com
Sat Jul 25 15:17:51 PDT 2015


Dear Marmamers

I am pleased to announce the following publication:

Cosentino, A.M. (2015). First record of Norwegian killer whales attacking
and feeding on a harbour porpoise. *Marine Biodiversity Records* 8:e108

*Orcinus orca* is a cosmopolitan species and the most widely distributed
marine mammal. Its diet includes over 140 species of fish, cephalopods, sea
birds and marine mammals. However, many populations are specialised on
certain specific prey items. Three genetically distinct populations have
been described in the North Atlantic. Population A (that includes the
Icelandic and Norwegian sub-populations) is believed to be piscivorous, as
is population C, which includes fish-eating killer whales from the Strait
of Gibraltar. In contrast, population B feeds on both fish and marine
mammals. Norwegian killer whales follow the Norwegian spring spawning
herring stock. The only description in the literature of Norwegian
killer whales
feeding on another cetacean species is a predation event on northern
bottlenose whales in 1968. Daily land-based surveys targeting sperm whales
were conducted from the Andenes lighthouse using BigEyes w binoculars (25 ×
, 80 mm). The location of animals at sea was approximated through the use
of an internal reticule system and a graduated wheel. On 24 June 2012 at
3:12 am, an opportunistic sighting of 11 killer whales was made off Andenes
harbour. The whales hunted and fed on a harbour porpoise. Despite these
species having overlapping distributions in Norwegian waters, this is the
first predatory event reported in the literature


It is available at:
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9841659&fileId=S1755267215000895

or you can contact me for a copy
orcinus.orca.1758 at gmail.com

Best regards,

Mel Cosentino
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