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  • 01 SEAFDEC Publications
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  • Proceedings of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973
  • Lihat Penerbitan
  •   Rumah
  • 01 SEAFDEC Publications
  • 11 Conference Proceedings
  • Secretariat
  • Proceedings of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973
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Fish school structure of red snappers and bigeye snappers in the South China Sea

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SuzukiO1977b.pdf (263.6Kb)
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1977
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Suzuki, Otohiko
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Towards the end of 1971, a systematic trawl survey was made in a narrow restricted area within the MFRD Reference Area. Throughout all the hauls red snappers and bigeye snappers were dominant in catch, as observed commonly in the South China Sea, and in most cases they were caught together in the South China Sea, and in most cases they were caught together in every haul. Moreover, it was often observed that when either of them showed an extremely high catch, the other was extremely low. The above seems to suggest that the center of a fish school may not coincide with that of another species, but the domain occupied by the former is partly overlapped with that of the latter inhabiting adjacently.

Using a simple mathematical model, some characteristic values on an average dispersion pattern of the species of fish schools on whose circumferences 50 kg/hour could be expected are almost the same and are 5 to 6 nautical miles. The maximum catch of red snappers and bigeye snappers which could be expected at the centers of the respective fish schools are 210 and 270 kg/hour respectively.
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http://hdl.handle.net/20.500.12066/4097
Suggested Citation
Suzuki, O. (1977). Fish school structure of red snappers and bigeye snappers in the South China Sea. In Proceedings of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973 (pp. 46-49). Tokyo, Japan: Japan International Cooperation Agency.
Subjek
trawling ASFA; marine fish ASFA; marine fisheries ASFA; commercial species ASFA; fishery surveys ASFA; behaviour ASFA; schooling behaviour ASFA; modelling ASFA; fish catch statistics ASFA; Lutjanus; Priacanthus; South China Sea
Koleksi
  • Proceedings of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973 [35]

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