Spinner dolphin (Stenella longirostris) and other cetaceans in Raja Ampat waters, West Papua

International audience Cetaceans were surveyed using ship transects across the seas of Raja Ampat (West Papua) in November and December 2007. Sighting effort reached 120 hours, over a total distance of 1561 km. The most common cetacean sighted was the spinner dolphin, Stenella longirostris (~0.238 i...

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Bibliographic Details
Main Authors: Borsa, Philippe, Nugroho, Dharma Arif
Other Authors: Écosystémique des communautés récifales et de leurs usages dans le Pacifique insulaire (CoReUS), Lembaga Ilmu Pengetahuan Indonesia (LIPI), Lembaga Ilmu Pengetahuan Indonesia
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2010
Subjects:
Halmahera Sea
Pacific Ocean
Coral Triangle
pelagic spinner dolphin
pilot whale
Risso's dolphin
bottlenose dolphin
false killer whale
sperm whale
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology
Pacific
Killer Whale
Physeter macrocephalus
Sperm whale
Online Access:https://hal.ird.fr/ird-00605795
https://hal.ird.fr/ird-00605795/document
https://hal.ird.fr/ird-00605795/file/BorsaNugroho_pour_HAL_IRD.pdf
Description
Summary:International audience Cetaceans were surveyed using ship transects across the seas of Raja Ampat (West Papua) in November and December 2007. Sighting effort reached 120 hours, over a total distance of 1561 km. The most common cetacean sighted was the spinner dolphin, Stenella longirostris (~0.238 individuals/km), most frequently in pods of 15-20 individuals, in relatively-shallow to deep waters (82-2310 m). All those spinner dolphins that were positively identified from photographs were of the pelagic form (S. l. longirostris). Other cetaceans sighted were the short-finned pilot whale, Globicephala macrorhynchus, Risso's dolphin, Grampus griseus, the bottlenose dolphin, Tursiops sp., the false killer whale, Pseudorca crassidens and the sperm whale, Physeter macrocephalus.

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