Infraclassis: Zatheria Dabei nutzen sie je nach Schule 7–17 verschiedene Typen von Lautäußerungen. Perrin, W., B. Würsig, J. Thewissen. It is found in oceans worldwide but mainly frequents tropical regions. Die norwegischen Schwertwale ernähren sich vorwiegend von Hering und jagen diesen in meist bis zu 20, gelegentlich auch bis zu 100 m Tiefe nach. Subphylum: Vertebrata [26], The false killer whale is known to be much more adaptable in captivity than other dolphin species, being easily trained and highly sociable with other species, and as such it is/was kept in several public aquariums around the world, such as in Japan, the United States, the Netherlands, Hong Kong, and Australia. It has been known to ride the wakes of large boats, which could put it at risk of hitting the boat propeller. Der Schwertwal (Orcinus orca) ist eine Art der Wale aus der Familie der Delfine (Delphinidae). Für das gleichnamige U-Boot siehe, Phylogenetische Systematik der Delphinidae nach Horreo 2018. The European Environment Agency (EEA) is an agency of the European Union. None. Ordo: Therapsida [42] Eine Population von Schwertwalen als Spitzenprädatoren kann damit einen merklichen Einfluss auf ein Ökosystem haben. Ein weiterer Gefährdungsfaktor ist die Umweltverschmutzung: Einerseits durch die Bioakkumulation von polychlorierten Biphenylen (PCB) in Schwertwalen, andererseits durch Ölverschmutzung. Wenn bei der Nahrungsaufnahme des Schwertwals Beutestücke übrig bleiben, so werden sie oft von Seevögeln gefressen. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Örtlich spezialisieren sich Schwertwal-Ökotypen auf bestimmte Beutetiere und praktizieren auf ihre Beute zugeschnittene Jagdstrategien. Eine Veränderung der Struktur des Kollagens bewirkt schließlich das Umklappen; mögliche Gründe sind eine Störung des Wasserhaushalts durch veränderte Wasserwerte, geringerer Blutdruck wegen verminderter Aktivität oder zu große Hitze, da die Finne in flachen Becken öfter über Wasser gehalten wird. This material is based upon work supported by the If you have forgotten your password, http://www.migratoryspecies....ent/about-cms-family. In der südlichen Nordsee, etwa vor Schweden, Dänemark, Deutschland und den Niederlanden ist der Schwertwal seltener, dasselbe gilt für die Ostsee. This species has a more slender build compared to other dolphins and they have tapering heads and flippers. [3][4], Ein charakteristisches Merkmal der Art ist ihre kontrastreiche schwarz-weiße Färbung.
The body is long with a narrow dorsal fin with rounded tip, and long pointed flippers. EEA Plone KGS 19.4.17, Template updated on Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Help us improve the site by taking our survey. the area in which the animal is naturally found, the region in which it is endemic. They are known to dive as deep as 2000 meters. The false killer whale is covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas (ASCOBANS), and the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area (ACCOBAMS). Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Nach molekularer Uhr vollzog sich die Aufspaltung in verschiedene Ökotypen vor 700.000–150.000 Jahren. Between 18 and 24 months old, the calf is gradually weaned. animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Gestation takes around 15 months. Watson, L. 1981. Die kulturelle Bedeutung des Schwertwals reicht von der traditionellen Verehrung durch nordamerikanische Indianer bis hin zur heutigen, umstrittenen Haltung in Delfinarien. They are also carriers of two types of whale lice: Lsocyamus delphini and Cyamus antarcticensis. Pseudorca crassidens. Werden diese nun als Arten abgetrennt, so müssten diese in einen hohen Bedrohungsgrad eingestuft werden. [13], Whale strandings are rare in southern Africa, but mass strandings in this area are typically associated with the false killer whale, with mass strandings averaging at 58 individuals. [7] Females lactate for 9 months to 2 years.
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