Diet of two Antarctic dragonfish (Pisces: Bathydraconidae) from the Indian sector of the Southern Ocean

Title: Diet of two Antarctic dragonfish (Pisces: Bathydraconidae) from the Indian sector of the Southern Ocean
Creator: Pakhomov, E A
Subject: Antarctica Bathydraconidae
Date Issued: 1998
Date: 1998
Type: Article
Identifier: vital:6943
Identifier: http://hdl.handle.net/10962/d1011970
Identifier: http://dx.doi.org/10.1017/S095410209800008X
Description: The diet of Cygnodraco mawsoni Waite 1916 and Gymnodraco acuticeps Boulenger 1902 (Pisces: Bathydraconidae) was studied in the Cooperation and Cosmonaut seas in the depth range 200–400 m during the summer 1988. Stomach content analysis showed that both species are piscivorous predators but with different feeding habits. Cygnodraco mawsoni fed mostly on young notothenioid fish, regularly complementing these with pelagic, Euphausia superba, and benthic crustaceans, such as amphipod gammarids and mysids. In contrast, G. acuticeps relied mostly on mesopelagic fish of the family Myctophidae. Although C. mawsoni and G. acuticeps occupy similar depths in the Cosmonaut Sea, different feeding habits appear to limit the probability of interspecific competition for food.
Format: 7 pages
Format: pdf
Language: English
Relation: Pakhomov, E.A. (1998) Diet of two Antarctic dragonfish (Pisces: Bathydraconidae) from the Indian sector of the Southern Ocean. Antarctic Science, 10 (1). pp. 55-61. Available: http://dx.doi.org/10.1017/S095410209800008X

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Pakhomov, Evgeny (Prof)

RU Department of Zoology and Entomology

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