Forschung und Schutz von Meeressäugern


infoDiese Seite gibt es zur Zeit leider nur in Englisch.
Falls Sie uns helfen wollen würden wir uns sehr
über eine Übersetzung als Spende freuen!
Bitte schicken Sie uns den deutschen Text an: Vielen Dank!!

Killer whale (Orcinus orca)

Group formation: Matrifocal groups (size 3-10)

Size: males 6-10m, females 5-8m, calf 2.2m

Weight: males 5-6tons, females 3-4tons, calf 180kg

Age: males 30 (60)yrs, females 50 (80-103)yrs

Sexual maturity: males 15-20 yrs, females 15 yrs

Physical maturity: males 20-25 yrs, females 15 yrs

Gestation: 16-17mths, birth every 3-4 yrs, menopause around 40yrs of age

Diet: Marine mammals mostly dolphins, manta rays

Distribution: Toothed whale, largest dolphin, distributed all over the world.

Raja Ampat: Orcas are distribution all along the coast, but low in numbers, can be seen solitary or in small groups.

Population: min. 50 000

Conservation Status: Data Deficient ver 3.1, Pop. trend: unknown


Threats: whaling (Indonesia, Greenland), plastic pollution, man-made noise impacts (seismic surveys, military sonar), entanglement in fishing gear, over fishing, captivity.

Cooperation: Georgina Gemmell, Lead Administrator, Orca Project Sri Lanka
Orca Project Sri Lanka

Killer-Whale_Chris-Studer-2015 (1 of 1)

Meeressäuger Bibliothek