Reproductive dynamics of Pacific bluefin tuna (Thunnus orientalis) off the Nansei Islands, southern Japan
Reproductive dynamics of Pacific bluefin tuna (Thunnus orientalis) off the Nansei Islands, southern Japan
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日本南部南西群岛附近的太平洋蓝鳍金枪鱼（Thunnus orientalis）的繁殖动态
DOI：
10.1016/j.fishres.2022.106256
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发表时间：
2022
影响因子：
2.4
通讯作者：
Tanaka Sho
中科院分区：
文献类型：
--
作者：
Ashida Hiroshi;Shimose Tamaki;Okochi Yumi;Tanaka Yosuke;Tanaka Sho
为了描述太平洋蓝鳍金枪鱼（Thunnus orientalis）繁殖特征的季节变化，研究了日本南西诸岛和本州岛西南部沃茨的产卵季节、产卵比例（SF）、产卵间隔、产卵量（BF）和产卵鱼水平分布（SP）的月变化。在19 ~ 29 °C的海表温度范围内观测到了SP，并且SP的频率随海表温度的升高而增加。五月初至七月中旬观察到SP，最常见的是在六月底。南西群岛的SP分布有向北扩展的趋势。在整个研究期间，成熟的雌性鱼类广泛分布在南西群岛和本州岛西南部的沃茨。产卵期的总SF为0.24，相当于4.17d的产卵间隔期。SF有随时间增加的趋势。捕鱼季节开始后的天数（天）对成熟鱼中出现排卵后卵泡的样本的概率产生积极影响。产卵期的平均和相对BF分别为9.74 ± 6.72（百万卵）和64.8 ± 38.4（卵/g）。BF是积极的影响，增加叉长（FL）和天。这些结果表明，在南西群岛的太平洋蓝鳍金枪鱼的繁殖性状受到环境和母体条件的影响。
To describe seasonal changes in the reproductive traits of Pacific bluefin tuna (Thunnus orientalis), we examined the spawning season, spawning fraction (SF), spawning interval, batch fecundity (BF) and monthly changes in the horizontal distribution of spawning fish (SP) in the Nansei Islands and the waters off southwestern Honshu Island, Japan. SP were observed at sea surface temperatures (SSTs) between 19 and 29 °C, and the frequency of SP tended to increase with SST. SP were observed from early May to mid-July and most frequently in late June. The SP distribution in the Nansei Islands tended to expand northward with time. Mature female fish were widely distributed between the Nansei Islands and the waters off southwestern Honshu Island throughout the study period. The total SF during the spawning season was 0.24, which was equal to the 4.17-day spawning interval. The SF tended to increase with time. The number of days since the start of the fishing season (Days) positively affected the probability of the occurrence of specimens with postovulatory follicles among mature fish. The mean and relative BFs during the spawning season were 9.74 ± 6.72 (million oocytes) and 64.8 ± 38.4 (oocytes/g), respectively. The BF was positively affected by increases in the fork length (FL) and Days. These results suggest that the reproductive traits of Pacific bluefin tuna in the Nansei Islands are influenced by environmental and maternal conditions.
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影响因子：
1.7
作者：
Brown-Peterson, Nancy J.;Wyanski, David M.;Lowerre-Barbieri, Susan K.
通讯作者：
Lowerre-Barbieri, Susan K.
水温对圈养蓝鳍金枪鱼产卵生物学的影响
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
S. Masuma;N. Tezuka;M. Koiso;T. Jinbo;Takayuki Takebe;Hideo Yamazaki;H. Obana;K. Ide;H. Nikaido;H. Imaizumi
通讯作者：
H. Imaizumi
影响因子：
0.4
作者：
Itoh, Tomoyuki
通讯作者：
Itoh, Tomoyuki
温度对日本鳀鱼繁殖参数的影响：近海和近海水域的比较
影响因子：
2.4
作者：
A. Takasuka;Y. Oozeki;H. Kubota;Y. Tsuruta;T. Funamoto
通讯作者：
T. Funamoto
日本海太平洋蓝鳍金枪鱼（Thunnus orientalis）生殖状况的长期变化和母体效应评估
影响因子：
2.4
作者：
S. Ohshimo;Takuya Sato;Y. Okochi;Yuki Ishihara;A. Tawa;Masanori Kawazu;Y. Hiraoka;H. Ashida;N. Suzuki
通讯作者：
N. Suzuki