Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam
The abundance of fisheries resources and their structure off shore of Sarawak, Sabah and Brunei Darussalam were investigated under the SEAFDEC Collaborative Research Survey. Hydro-acoustic surveying by using a scientific echo sounder model FQ-70 was conducted for estimating the fish abundance and biomass. Two survey cruises were carried out by M.V. SEAFDEC during 10 July to 2 August 1996 and 1 to 24 May 1997 for pre and post-northeast monsoon seasons, respectively. The scientific echo-sounder was equipped with an echo-integrator and two quasi-ideal beam transducers with operating frequencies of 50 and 200 kHz. For pre and post-northeast monsoon season was 1,717,852 tons and 956,397 tons, respectively. The maximum fish abundance were found at the water depth between 100 to 200 m was 92.4% and 49.8% of total abundance for pre and post-northeast monsoon season, respectively.
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Format: | book_section biblioteca |
Language: | English |
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Training Department, Southeast Asian Fisheries Development Center
1999
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Subjects: | Fisheries, Oceanography, Marine fisheries, Fishery surveys, Abundance, Stock assessment, Echo surveys, Fishery resources, South China Sea, Malaysia, Sarawak, Sabah, Brunei Darussalam, |
Online Access: | http://hdl.handle.net/1834/40680 |
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dig-aquadocs-1834-406802021-07-24T02:36:50Z Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam Proceedings of the Second Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area II: West Coast of Sabah, Sarawak and Brunei Darussalam, 14-15 December 1998, Kuala Lumpur, Malaysia Theparoonrat, Yuttana Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam The abundance of fisheries resources and their structure off shore of Sarawak, Sabah and Brunei Darussalam were investigated under the SEAFDEC Collaborative Research Survey. Hydro-acoustic surveying by using a scientific echo sounder model FQ-70 was conducted for estimating the fish abundance and biomass. Two survey cruises were carried out by M.V. SEAFDEC during 10 July to 2 August 1996 and 1 to 24 May 1997 for pre and post-northeast monsoon seasons, respectively. The scientific echo-sounder was equipped with an echo-integrator and two quasi-ideal beam transducers with operating frequencies of 50 and 200 kHz. For pre and post-northeast monsoon season was 1,717,852 tons and 956,397 tons, respectively. The maximum fish abundance were found at the water depth between 100 to 200 m was 92.4% and 49.8% of total abundance for pre and post-northeast monsoon season, respectively. 2021-06-24T18:38:29Z 2021-06-24T18:38:29Z 1999 book_section http://hdl.handle.net/1834/40680 en http://hdl.handle.net/20.500.12066/4580 application/pdf application/pdf 362-370 9 Training Department, Southeast Asian Fisheries Development Center Samut Prakan, Thailand http://aquaticcommons.org/id/eprint/26419 23782 2019-04-10 08:26:18 26419 Southeast Asian Fisheries Development Center, Training Department |
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Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam |
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Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam Theparoonrat, Yuttana Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
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The abundance of fisheries resources and their structure off shore of Sarawak, Sabah and Brunei Darussalam were investigated under the SEAFDEC Collaborative Research Survey. Hydro-acoustic surveying by using a scientific echo sounder model FQ-70 was conducted for estimating the fish abundance and biomass. Two survey cruises were carried out by M.V. SEAFDEC during 10 July to 2 August 1996 and 1 to 24 May 1997 for pre and post-northeast monsoon seasons, respectively. The scientific echo-sounder was equipped with an echo-integrator and two quasi-ideal beam transducers with operating frequencies of 50 and 200 kHz. For pre and post-northeast monsoon season was 1,717,852 tons and 956,397 tons, respectively. The maximum fish abundance were found at the water depth between 100 to 200 m was 92.4% and 49.8% of total abundance for pre and post-northeast monsoon season, respectively. |
format |
book_section |
topic_facet |
Fisheries Oceanography Marine fisheries Fishery surveys Abundance Stock assessment Echo surveys Fishery resources South China Sea Malaysia Sarawak Sabah Brunei Darussalam |
author |
Theparoonrat, Yuttana |
author_facet |
Theparoonrat, Yuttana |
author_sort |
Theparoonrat, Yuttana |
title |
Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
title_short |
Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
title_full |
Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
title_fullStr |
Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
title_full_unstemmed |
Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam |
title_sort |
biomass estimation by hydro-acoustic methods in the south china sea, area ii: sarawak, sabah and brunei darussalam |
publisher |
Training Department, Southeast Asian Fisheries Development Center |
publishDate |
1999 |
url |
http://hdl.handle.net/1834/40680 |
work_keys_str_mv |
AT theparoonratyuttana biomassestimationbyhydroacousticmethodsinthesouthchinaseaareaiisarawaksabahandbruneidarussalam AT theparoonratyuttana proceedingsofthesecondtechnicalseminaronmarinefisheryresourcessurveyinthesouthchinaseaareaiiwestcoastofsabahsarawakandbruneidarussalam1415december1998kualalumpurmalaysia |
_version_ |
1756080060508405760 |