False Killer Whale

(redirected from Pseudorca)
Also found in: Medical.

False Killer Whale

 

(Pseudorca crassidens), an aquatic mammal of the family Delphinidae of the suborder Odontoceti (toothed whales). The body length of the male measures up to 6 m and the weight up to 1.5 tons; the female measures up to 5 m long and weighs up to 1 ton. The coloration is black, with a narrow white stripe on the belly. The head is rounded at the end. There are about 40 conic-shaped teeth, each measuring up to 28 mm in diameter.

The false killer whale is distributed in all temperate and warm waters of all the oceans; in the USSR it is found near the Kuril Ridge. It feeds on fish, including tuna, and cephalopods. It bears one offspring measuring about 1.6-1.8 m long. False killer whales associate in schools of many individuals. They are kept in oceanariums on the Hawaiian Islands, in Japan, and in the USA. In captivity the false killer whale submits readily to training. It is not an object of commerce.

REFERENCES

Tomilin, A. G. Kitoobraznye. Moscow, 1957. (Zveri SSSR i prilezhashchikh stran, vol. 9.)
Zhizn’zhivotnykh, vol. 6. Moscow, 1971.
References in periodicals archive ?
Due to concerns over interactions with marine mammals and sea turtles (particularly false killer whales, Pseudorca crassidens', rough-toothed dolphins, Steno bredanensis; and green sea turtles), an increase in coverage levels to approximately 40% was recommended by NMFS protected resources staff.
As with any dealings with wild creatures, safety is paramount, and the SeaWorld trainers were always aware of the mood and aggression of the pseudorcas before we were allowed to wade in the shallow waters for that all-important photographic opportunity.
Occurrence of Pseudorca crassidens in the Pacific coastal waters of Costa Rica, p.
macrorhynchus, Steno bredanensis, Tursiops truncatus, Pseudorca crassidens, and S.
Although our study does not show patterns to support Cocos Island as important site for Pseudorca crassidens (Acevedo-Gutierrez 1997) and Ziphius cavirostris (Acevedo-Gutierrez 1996) it is important to consider these sites as potential habitats for these two species, until future studies of abundance and habitat use are available.
densirostris * 1 3 Unidentified Ziphiidae * 15 33 Ziphius cavirostris * 14 36 Delphinidae Delphinus spp/Delphinus 82 17875 delphis * Grampus griseus * 76 880 Globicephala macrorhynchus * 68 967 Lagenodelphis hosei 1 158 Orcinus orca * 7 25 Pseudorca crassidens * 9 253 Peponocephala electra * 2 445 Stenella attenuata * 525 12311 S.
Nonendangered marine mammals identified as interacting with commercial fisheries in Hawaiian waters include bottlenose dolphins, Tursiops truncatus; false killer whales, Pseudorca crassidens; rough-toothed dolphins, Steno bredanensis; and spinner dolphins, Stenella longirostris.
Se comprobo la utilidad de la variacion isotopica del colageno del hueso para definir el comportamiento trofico principal de seis especies de delfinidos (Lagenorhynchus australis, Cephalorhynchus commersonii, Grampus griseus, Lissodelphis peronii, Pseudorca crassidens y Lagenorhynchus cruciger) y dos especies de focenidos (Phocoena dioptrica y Phocoena spinipinnis).
On the other hand, there are no stranding records of very common species in inshore waters, such as Delphinus delphis (common dolphin) and Grampus griseus (Risso's dolphin) and Pseudorca crassidens (false "killer whale").
A recurment mass stranding of the false killer whale, Pseudorca crassidens, in Florida.
En Oaxaca los mamiferos marinos estan representados basicamente por Cetaceos, estando reportadas las especies Tursiops truncatus, Stenella attenuata, Stenella longirostris, Feresa attenuata, Pseudorca crassidens, Grampus griseus, Globicephala macrorhynchus y Megaptera novaeangliae (Salinas y Ladron de Guevara, 1993).
longirostris, Orcinus Orca, Pseudorca crassidens, Feresa attenuata, Tursiups truncatus, Zalophus californianus californianus, una especie no identificada plenamente de rorcual (recientemente se registro en la zona el varamiento de un cadaver de Balaenoptera musculus, Ivan Lira coms.