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Rough-toothed dolphin, Steno bredanensis: a new species record for the Azores, with some notes on behaviour
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Abstract(s)
O caldeirão, Steno bredanensis, foi observado por duas vezes nos Açores. A primeira vez em 14-8-95 num grupo de 50-60 indivíduos de idades variadas. Movimentaram-se na proa do navio e pareceram alimentar-se durante parte do encontro. Um golfinho foi visto empurrar um peixe-balão insuflado pela superfície. A segunda ocorrência foi em 20-8-95 e seria provavelmente o mesmo grupo de 50-60 animais. Este grupo foi observado debaixo de água alimentando-se de trombeteiro, Macrorhamphosus scolopax, juntamente com cagarros, Calonectris diomedea borealis. São relatadas outras observações no comportamento desta espécie.
ABSTRACT: Rough-toothed dolphin, Steno bredanensis were observed twice in the Azores. The first time on 14-8-95 a group of 50-60 individuals of mixed ages was seen. They bow rode and appeared to be feeding during part of the encounter. One dolphin was seen pushing an inflated puffer fish along the surface. The second occurrence was on 20-8-95 and was probably the same group of 50-60 animals. This group was observed underwater feeding on snipe fish, Macrorhamphosus scolopax, along with Cory's shearwaters, Calonectris diomedea borealis. A few other behavioural observations are made.
ABSTRACT: Rough-toothed dolphin, Steno bredanensis were observed twice in the Azores. The first time on 14-8-95 a group of 50-60 individuals of mixed ages was seen. They bow rode and appeared to be feeding during part of the encounter. One dolphin was seen pushing an inflated puffer fish along the surface. The second occurrence was on 20-8-95 and was probably the same group of 50-60 animals. This group was observed underwater feeding on snipe fish, Macrorhamphosus scolopax, along with Cory's shearwaters, Calonectris diomedea borealis. A few other behavioural observations are made.
Description
Keywords
Steno bredanensis Caldeirão Rough-toothed Dolphin Açores Azores
Citation
"ARQUIPÉLAGO. Ciências Biológicas e Marinhas = Life and Marine Sciences". ISSN 0870-6581. Nº 13A (1995): 125-127.