Location: Northwest and Northeast coast of North America, Northwest and West coast of Europe down to Northwest coast of Africa, off the east coast of Asia. Conservation status: Least Concern. Harbor porpoises are notoriously difficult to study, and diet studies so far suggest that young salmon are not normally on their menu. In the Hebrides Sand-eels, Herring and Sprat make up the bulk of the Harbour Porpoise's diet, however they have been known to eat squid, octopus, shellfish and up to 20 different species of fish. Diet: Fish, squid, crustaceans. Harbour porpoise (Phocoena phocoena), the only resident cetacean species of the Baltic Sea is formed of two subpopulations populations, occurring in t… In many areas, small pelagic schooling fish such as herring and mackerel are important in the diet, while in other locations demersal fish such as sandeels predominate. Harbour Porpoise numbers have seen a decrease around the UK, this is mostly due to human activities. Herring, sprat and sandeel make up a large part of their diet in Hebridean waters. But experts acknowledge limitations in the diet studies, and some believe that these marine mammals might well be consuming young salmon.
In all but the worst case scenarios, harbor porpoises are well equipped for their ecological niche due to their generalist diet, consisting of a range of moderate to high energy‐density prey combined with ultra‐high foraging rates and high capture success. Diet In terms of diet porpoises are known to consume fish , squid , and crustaceans as … Length:1.5 – 1.9 metres. Studies of harbour porpoise diet have shown that it varies by season and location, and that these porpoises take a wide variety of prey species from both benthic and pelagic habitats.
When foraging they spend up to 6 minutes underwater. When feeding, they commonly surface to breathe about four times every 10 to 20 seconds before diving for up to six minutes. Weight: 60 - 75 kg, males being smaller. The harbour porpoise diet consists of over 20 different species of fish, squid, octopus and shellfish. Species such as the harbor porpoise have dark gray or dark brown coloring with a white belly.
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