Mackerels, molecules, and morphology
Mackerels, molecules, and morphology
复制标题
鲭鱼、分子和形态
DOI：
10.1111/j.1444-2906.2007.01365.x
复制
发表时间：
1999
影响因子：
1.9
通讯作者：
B. Collette
中科院分区：
文献类型：
--
作者：
B. Collette
1999年和2004年8月下旬至9月下旬进行了中层拖网调查，以调查日本海太平洋蓝鳍金枪鱼幼鱼的分布格局、孵化日期和生长情况。幼鱼是在环境水温（从表面到30米深的平均水温，WT 0 −30）为23.4-25.9°C的站点采集的，大多数幼鱼是在WT 0 − 30高于24°C的沃茨发现的。取样的幼鱼叉长108-280毫米。根据耳石分析，估计它们在60和90日龄时分别长到约180和250毫米，与地中海的大西洋蓝鳍金枪鱼的生长情况相似。样品的反算孵化日期大多在7月，大多数幼体在日本海产卵。
Mid-water trawl surveys were conducted from late August to late September in 1999 and 2004 in order to investigate the distribution pattern, hatch date, and growth of juvenile Pacific bluefin tunaThunnus orientalisin the Sea of Japan. Juveniles were collected at the stations where ambient water temperature (mean water temperature from surface to 30 m deep, WT0−30) was 23.4–25.9°C, and most of them were found in waters where WT0−30was higher than 24°C. Sampled juveniles ranged 108–280 mm fork length. Based on otolith analysis, they were estimated to grow to approximately 180 and 250 mm at 60 and 90 days old, respectively, and showed similar growth to that of Atlantic bluefin tuna in the Mediterrannean Sea. The back-calculated hatch date of the samples was mostly in July and most juveniles spawned in the Sea of Japan.