Identifying the distribution of Atlantic cod spawning using multiple fixed and glider-mounted acoustic technologies
Identifying the distribution of Atlantic cod spawning using multiple fixed and glider-mounted acoustic technologies
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使用多种固定和滑翔机安装的声学技术识别大西洋鳕鱼产卵的分布
DOI：
10.1093/icesjms/fsz064
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发表时间：
2019
影响因子：
3.3
通讯作者：
Christopher H. McGuire
中科院分区：
文献类型：
--
作者：
Douglas R Zemeckis;M. Dean;A. DeAngelis;S. V. Van Parijs;William S. Hoffman;M. Baumgartner;L. Hatch;S. Cadrin;Christopher H. McGuire
保护鱼类产卵聚集的有效渔业管理措施需要有关产卵时空分布的可靠信息。产卵关闭是重建缅因湾大西洋鳕鱼种群的一系列渔业管理行动的一部分，但重建管理仍然存在困难。本研究的目的是确定马萨诸塞湾冬季鳕鱼产卵的时空分布，以提高我们对鳕鱼产卵动态的了解并为渔业管理提供信息。与商业渔民合作，在三个冬季产卵季节（2013 年 10 月至 2016 年 3 月）使用声学遥测和被动声学监测设备对产卵进行了调查，这些设备部署在固定站阵列中并安装在移动自主滑翔机上。标记的鳕鱼表现出产卵地点的保真度，产卵主要发生在 11 月初至 1 月，12 月中旬达到高峰，并存在一些年际变化。产卵的空间分布在年份中基本一致，在>50米深度的区域有多个热点。目前的关闭涵盖了大部分产卵区，但建议对重要区域进行潜在的修改。与商业渔民合作利用多种互补技术和部署策略，可以全面描述产卵情况，并为未来的研究提供有价值的模型。
Effective fishery management measures to protect fish spawning aggregations require reliable information on the spatio-temporal distribution of spawning. Spawning closures have been part of a suite of fishery management actions to rebuild the Gulf of Maine stock of Atlantic cod (Gadus morhua), but difficulties remain with managing rebuilding. The objective of this study was to identify the spatial and temporal distribution of cod spawning during winter in Massachusetts Bay to improve our understanding of cod spawning dynamics and inform fisheries management. Spawning was investigated in collaboration with commercial fishermen during three winter spawning seasons (October 2013–March 2016) using acoustic telemetry and passive acoustic monitoring equipment deployed in fixed-station arrays and mounted on mobile autonomous gliders. Tagged cod exhibited spawning site fidelity and spawning primarily occurred from early November through January with a mid-December peak and some inter-annual variability. The spatial distribution of spawning was generally consistent among years with multiple hotspots in areas >50 m depth. Current closures encompass most of spawning, but important areas are recommended for potential modifications. Utilizing multiple complementary technologies and deployment strategies in collaboration with commercial fishermen enabled a comprehensive description of spawning and provides a valuable model for future studies.
保护后恢复中的美属维尔京群岛红后肢产卵聚集的种群特征。
影响因子：
2.5
作者：
Nemeth,RichardS
通讯作者：
Nemeth,RichardS