Vertical distribution and diet of Stenobrachius nannochir (Myctophidae) in the southern Bering Sea, summer, 1987

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概要

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• The vertical distribution and diet of the myctophid species Stenobrachius nannochir were examined on samples collected at various mesopelagic depths (>600m) day and night in the southern Bering Sea, in June and July 1987. This species exhibited no diel variation in vertical distribution, remaining at a depth of about 600m. Stomachs were examined from 226 specimens. The diet was dominated by copepoda, mostly Calanus plumchrus, Calanus cristatus, Eucalanus bungii bungii and Metridia pacifica. The stomach fullness and prey digestive stage indicated little evidence of feeding periodicity, suggesting that S. nannochir is an acyclic predator among the family Myctophidae. The acyclic feeding by this non-migrating myctophid appears to adapt it to exploit efficiently the broad vertical distribution and abundance of prey in the subarctic Pacific Ocean.

• 国立極地研究所の論文

著者

• Shimazaki Kenji

  Research Institute of North Pacific Fisheries, Faculty of Fisheries, Hokkaido University

• Shimazaki K

  Hokkaido Univ. Hakodate

• Shimazaki Kenji

  Research Institute Of North Pacific Fisheries Faculty Of Fisheries Hokkaido University

• Furuhashi Masahiro

  Research Institute of North Pacific Fisheries, Faculty of Fisheries, Hokkaido University

• Furuhashi Masahiro

  Research Institute Of North Pacific Fisheries Faculty Of Fisheries Hokkaido University

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• Diet of Steller sea lions off the coast of Rausu, Hokkaido, Japan
• Vertical distribution and diet of Stenobrachius nannochir (Myctophidae) in the southern Bering Sea, summer, 1987
• Spawning Habitat and Nest Depth of Female Dolly Varden Salvelinus malma of Different Body Size
• FEEDING HABITS OF PACIFIC COD, GADUS MACROCEPHALUS, OFF EASTERN HOKKAIDO, NORTH JAPAN (14th Symposium on Polar Biology)

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