Report on TED efficiency trials aboard a Gabonese fish trawler owned by a Chinese operator
编号:479 访问权限:仅限参会人 更新:2025-01-01 04:25:24 浏览:188次 口头报告

报告开始:2025年01月16日 08:45(Asia/Shanghai)

报告时间:15min

所在会场:[S72] Session 72-Sea Turtle and Marine Mammal Conservation: Management, Academic and Outreach Perspectives [S72-3] Sea Turtle and Marine Mammal Conservation: Management, Academic and Outreach Perspectives

暂无文件

摘要

Fishery dependent testing of TED-equipped trawls was conducted as a means of demonstrating the TED effect on catch rates of fish onboard a Gabonese trawler that is owned by a Chinese operator.  The project was a collaborative effort between NOAA Fisheries, Gabon Direction General de la Pêche et Agriculture (DGPA), the Wildlife Conservation Society Gabon (WCS) and Virginia Sea Grant (VASG). The project was made possible through funding from the NOAA Fisheries Office of International Affairs, International Cooperation and Assistance Program. A fishing gear specialist from VASG and 2 technicians from the DGPA collected information on catch rates of fish and bycatch from trawls equipped with a 14.6cm bar spacing TED specially designed for testing aboard a Gabonese fish trawler of built in China.  Trawling operations were conducted in southern Gabonese waters located on the central west coast of Africa in August of 2015. Catch data was collected from TED versus non-TED equipped trawls during two series of 30 consecutive comparative tows (all top-opening).  The duration of the tows and fishing zones were at the captain’s discretion. Fish loss was estimated at 10.4% for the first 30 tows but after two minor adjustments (extension of TED flap by 40cm and shortening the tail end of the trawl by 2.4m) the next 30 tows showed a gain of 0.9% for the TED equipped trawl. Bycatch reduction in the TED equipped trawl was 11.2% for the second 30 tows. A statistical analysis of the catch data between a top-opening TED-equipped trawl and non-TED trawl for the second 30 tows showed no difference in the catch rates of targeted fish while the reduction of bycatch was statistically significant.  Large fish specimens of guitar fish were captured less often in the TED equipped trawl.

 

关键词
marine turtle, bycatch, trawlers, sustainabilty
报告人
Michel A. Nalovic
Master fishingcleaner.com

稿件作者
Michel A. Nalovic fishingcleaner.com
发表评论
验证码 看不清楚,更换一张
全部评论
重要日期
  • 会议日期

    01月13日

    2025

    01月17日

    2025

  • 09月27日 2024

    初稿截稿日期

  • 01月17日 2025

    注册截止日期

主办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
承办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
联系方式
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询