Demersal fish resources in untrawlable waters, viewed through vertical-line fishing
Rocky reefs (80-120 m. in depth) along shoulders of steep continental slope in the South China Sea and the Andaman Sea often provide potentially good fishing grounds. Demersal fish resources in these reefs, having quite different species composition from those in trawl fishing grounds, have been scarcely exploited so far. The results of the recent surveys by Japanese research vessels and by R/V CHANGI revealed that vertical line fishing is promising in such untrawlable fishing grounds. The daily catch often exceeded one ton and was composed mainly of white snapper, gold-lined sea bream, grouper, pigface, trevally and jobfish. The catch and species composition in different areas did not vary much provided that the above mentioned bottom feature and oceanic environment were present. Daily catch may fluctuate considerably the above mentioned bottom features but tends to be equally poor during the period around the 4th day of a lunar month. While the relatively inexpensive fishing gear and equipment for vertical line fishing are important, the skill of skipper and crew in searching for fish schools and in the maneuvering of vessel and gears will affect the catch.
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Format: | book_section biblioteca |
Language: | English |
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Japan International Cooperation Agency
1977
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Subjects: | Fisheries, Fishery resources, Fishery surveys, Demersal fish, Demersal fisheries, Fishing grounds, Check lists, Trawling, Catch composition, Oceanographic surveys, Behaviour, |
Online Access: | http://hdl.handle.net/1834/40453 |
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dig-aquadocs-1834-404532021-07-24T02:14:20Z Demersal fish resources in untrawlable waters, viewed through vertical-line fishing Proceedings of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973 Senta, Tetsushi Miyata, Chuichi Tan, Sen-Min Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour Rocky reefs (80-120 m. in depth) along shoulders of steep continental slope in the South China Sea and the Andaman Sea often provide potentially good fishing grounds. Demersal fish resources in these reefs, having quite different species composition from those in trawl fishing grounds, have been scarcely exploited so far. The results of the recent surveys by Japanese research vessels and by R/V CHANGI revealed that vertical line fishing is promising in such untrawlable fishing grounds. The daily catch often exceeded one ton and was composed mainly of white snapper, gold-lined sea bream, grouper, pigface, trevally and jobfish. The catch and species composition in different areas did not vary much provided that the above mentioned bottom feature and oceanic environment were present. Daily catch may fluctuate considerably the above mentioned bottom features but tends to be equally poor during the period around the 4th day of a lunar month. While the relatively inexpensive fishing gear and equipment for vertical line fishing are important, the skill of skipper and crew in searching for fish schools and in the maneuvering of vessel and gears will affect the catch. 2021-06-24T18:36:27Z 2021-06-24T18:36:27Z 1977 book_section http://hdl.handle.net/1834/40453 en http://hdl.handle.net/20.500.12066/4102 application/pdf application/pdf 70-77 8 Japan International Cooperation Agency Tokyo, Japan http://aquaticcommons.org/id/eprint/26175 17342 2019-01-24 06:09:54 26175 Japan International Cooperation Agency |
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biblioteca |
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Europa del Oeste |
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English |
topic |
Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour |
spellingShingle |
Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour Senta, Tetsushi Miyata, Chuichi Tan, Sen-Min Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
description |
Rocky reefs (80-120 m. in depth) along shoulders of steep continental slope in the South China Sea and the Andaman Sea often provide potentially good fishing grounds. Demersal fish resources in these reefs, having quite different species composition from those in trawl fishing grounds, have been scarcely exploited so far. The results of the recent surveys by Japanese research vessels and by R/V CHANGI revealed that vertical line fishing is promising in such untrawlable fishing grounds. The daily catch often exceeded one ton and was composed mainly of white snapper, gold-lined sea bream, grouper, pigface, trevally and jobfish. The catch and species composition in different areas did not vary much provided that the above mentioned bottom feature and oceanic environment were present. Daily catch may fluctuate considerably the above mentioned bottom features but tends to be equally poor during the period around the 4th day of a lunar month. While the relatively inexpensive fishing gear and equipment for vertical line fishing are important, the skill of skipper and crew in searching for fish schools and in the maneuvering of vessel and gears will affect the catch. |
format |
book_section |
topic_facet |
Fisheries Fishery resources Fishery surveys Demersal fish Demersal fisheries Fishing grounds Check lists Trawling Catch composition Oceanographic surveys Behaviour |
author |
Senta, Tetsushi Miyata, Chuichi Tan, Sen-Min |
author_facet |
Senta, Tetsushi Miyata, Chuichi Tan, Sen-Min |
author_sort |
Senta, Tetsushi |
title |
Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
title_short |
Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
title_full |
Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
title_fullStr |
Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
title_full_unstemmed |
Demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
title_sort |
demersal fish resources in untrawlable waters, viewed through vertical-line fishing |
publisher |
Japan International Cooperation Agency |
publishDate |
1977 |
url |
http://hdl.handle.net/1834/40453 |
work_keys_str_mv |
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1756080030221336576 |