Migration and spawning behavior of the greater amberjack Seriola dumerili in eastern Taiwan
Migration and spawning behavior of the greater amberjack Seriola dumerili in eastern Taiwan
复制标题
台湾东部大鰤的洄游与产卵行为
DOI：
10.1111/fog.12559
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发表时间：
2021
影响因子：
2.6
通讯作者：
Kawabe Ryo
中科院分区：
文献类型：
--
作者：
Tone Kazuki;Nakamura Yosuke;Chiang Wei‐Chuan;Yeh Hsin‐Ming;Hsiao Sheng‐Tai;Li Chun‐Huei;Komeyama Kazuyoshi;Tomisaki Masanori;Hasegawa Takamasa;Sakamoto Takashi;Nakamura Itsumi;Sakakura Yoshitaka;Kawabe Ryo
大龙鱼（Seriola dumerili）是一种重要的渔业资源，分布于全球热带至温带沃茨。本文对东海杜氏海柔鱼的产卵洄游和栖息地利用进行了研究。2016年11月和2017年11月，在台湾东部沿海沃茨捕获并放流了22尾杜氏海鲶，并对其进行了水平和垂直运动的研究。从七个弹出卫星档案标签和七个深度温度记录仪中恢复了信息。几乎所有的鱼都留在台湾专属经济区。大部分个体从释放地点迁移到ECS的南部边缘，并在冬季（11月至12月）表现出与地形特征相关的行为。这些现象可能与觅食有关，并受到季节性季风和黑潮等海洋学特征的驱动。在1月和2月，这些鱼迁移到台湾南部近海。在它们向南迁移的过程中，鱼经历了一个缓慢升高的水温制度（SETR），这是诱导最终卵母细胞成熟的环境因素之一。在产卵季节（2月至4月），标记的女性表现出连续昼夜垂直运动（DVMs）经历SETR后。这些连续的DVM在台湾东部黑潮从北到南的广泛地理范围内被观测到。我们的研究表明，假定的产卵场的dumerilimust进一步扩大在南北方向比以前的研究预测。
Greater amberjack (Seriola dumerili) is an important fishery resource with a circumglobal distribution from tropical to temperate waters. Here, we investigated the spawning migration and habitat utilization ofS. dumeriliin the East China Sea (ECS). Archival tags were attached to 22 adult fish to examine their horizontal and vertical movements and estimate the spawning ground.S. dumeriliwere captured and released in the coastal waters of eastern Taiwan on November of 2016 and 2017. Information from seven pop‐up satellite archival tags and seven depth–temperature recorders was recovered. Almost all of the fish stayed in the Taiwanese exclusive economic zone. Most individuals moved from released site to the southern edge of the ECS and showed behavior associated with the topographic features in winter (November to December). These phenomena may be related to foraging and be driven by oceanographic features such as the seasonal monsoon and the Kuroshio. The fish then migrated to the south offshore area of Taiwan in January and February. During their southward migration, the fish experienced a slowly elevated water temperature regime (SETR), which is one of the environmental factors that induce final oocyte maturation. In the spawning season (February to April), tagged females exhibited continuous diel vertical movements (DVMs) after experiencing the SETR. These continuous DVMs were observed over a wide geographic range from north to south in the Kuroshio off eastern Taiwan. Our study demonstrated that the putative spawning ground ofS. dumerilimust extend further in a north–south direction than predicted in a previous study.