Behaviour of Short-finned Pilot Whales Globicephala macrorhynchus (Gray, 1846) (Mammalia: Cetartiodactyla: Delphinidae) in the southeastern Arabian Sea

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Kurichithara K. Sajikumar
Nadakkal Ragesh
Kolliyil S. Mohamed


We report the presence and behaviour of a pod of short-finned pilot whale Globicephala macrorhynchus in the southeastern Arabian Sea. The pod was observed in the southeastern side of Minicoy Island, in the Nine degree channel (09°219′23′′N;74°39′529′′E) on 03.02.2013. Later, on 06.02.2013,the same pod of pilot whales were observed near Kalpeni Island (10°02′402′′N; 73°39′579′′E) 130 km northwest of the previous location. The average length of the whales was estimated as 550 cm and weight as approximately 1200 kg. They were travelling in a northwesterly direction. The pod size of the whales sighted was twelve and several species specific behaviour such as side rolling, spyhopping, lobtailing, peduncle arching and movement patterns such as synchronous travelling and logging could be observed. The occurrence of scars and injuries on the body of four whales in the pod are also reported.

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Author Biographies

Kurichithara K. Sajikumar, Central Marine Fisheries Research Institute

Central Marine Fisheries Research Institute, P.O. Box 1603, Kochi, Kerala, 682018, India

Nadakkal Ragesh, Central Marine Fisheries Research Institute

Central Marine Fisheries Research Institute, P.O. Box 1603, Kochi, Kerala, 682018, India

Kolliyil S. Mohamed, Central Marine Fisheries Research Institute

Central Marine Fisheries Research Institute, P.O. Box 1603, Kochi, Kerala, 682018, India


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