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The harbour porpoise (Phocoena phocoena) is one of eight extant species of porpoise. It is one of the smallest species of cetacean . As its name implies, it stays close to coastal areas or river estuaries, and as such, is the most familiar porpoise to whale watchers .
Spectacled porpoise: circumpolar in cool sub-Antarctic and low Antarctic waters Phocoena phocoena: Harbour porpoise: cooler coastal waters of the North Atlantic, North Pacific and the Black Sea Phocoena sinus: Vaquita: northern area of the Gulf of California, or Sea of Cortez Phocoena spinipinnis: Burmeister's porpoise: coast of South America
Among the three rescues, one (father of world's first harbour porpoise born in captivity) lived for 20 years in captivity, another for 15 years, [32] [33] while the third (mother of first born in captivity) is the world's oldest known harbour porpoise, being 28 years old in 2023. [34] The typical age reached in the wild is 14 years or less.
Colonies of harbor seals and greys are increasing their numbers with every passing year and will be seen in the area from December through April. Occasionally this species will swim upstream in the Hudson River. Harbor porpoise (Phocoena phocoena) - Has been seen in Upper New York Bay.
The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
The harbour porpoise was one of the most accessible species for early cetologists; because it could be seen close to land, inhabiting shallow coastal areas of Europe. Much of the findings that apply to all cetaceans were first discovered in porpoises. [ 98 ]
It was found that the incidental mortality exceeds critical values, thus showing bycatch is a significant threat to the harbour porpoise. [18] Harbour porpoises become entangled in nets due to their inability to detect the nets before collision. [19] In 2001, 80 harbour porpoises were killed in salmon gillnet fisheries in British Columbia, Canada.
Harbour porpoise, Phocoena phocoena LC (Baltic Sea subpopoulation CR) (ssp. phocoena - Atlantic harbour porpoise NE, ssp. vomerina - Eastern Pacific harbour porpoise NE, ssp. relicta - Black Sea harbour porpoise EN, unnamed ssp. Western Pacific harbour porpoise NE) Vaquita, Phocoena sinus CR; Burmeister's porpoise, Phocoena spinipinnis DD