Interannual growth differences and growth-selective survival in larvae and juveniles of marbled sole Pseudopleuronectes yokohamae
Interannual growth differences and growth-selective survival in larvae and juveniles of marbled sole Pseudopleuronectes yokohamae
复制标题
横滨假侧耳鱼幼虫和幼鱼的年际生长差异和生长选择性存活
DOI：
10.3354/meps10509
复制
发表时间：
2013
影响因子：
2.5
通讯作者：
T. Takatsu
中科院分区：
文献类型：
--
作者：
M. Joh;M. Nakaya;N. Yoshida;T. Takatsu
比目鱼在变态过程中急剧改变其栖息地、体型和摄食;因此，早期的幼鱼和幼虫阶段被视为早期生存的关键。然而，据我们所知，没有研究已经测试了生长-死亡假说的幼虫和少年阶段的比目鱼。因此，我们调查了增长率和环境因素之间的关系，并测试了2001年至2003年在日本函馆湾的大理石纹比目鱼Pseudopleuronectes yokohamae的幼虫和幼虫阶段的假设。对于幼虫和少年阶段，耳石生长与水温。眼移行幼虫被定义为浮游生物（SV浮游）的幸存者。在6月下旬和7月捕获的大型青少年被定义为虾捕食（SV少年）的幸存者。为了检验生长-死亡假说，将SV和原始种群的耳石生长进行了比较。在浮游幼虫阶段，生长选择性生存没有检测到在任何3年。在早期的少年阶段，快速增长的个人在2002年选择性生存，但在2003年没有。2002年，由于水温较低，幼鱼数量增长缓慢。因此，在2002年的青少年需要时间来超过的大小谱，是容易受到虾捕食，因此，个人成长更快，能够选择性地生存。我们的研究结果表明，早期的少年阶段的比目鱼的生存的重要性。
Flatfishes drastically change their habitat, body form, and feeding during metamorphosis; thus, the early juvenile and larval stages are viewed as being critical for early survival. However, to the best of our knowledge, no studies have tested the growth-mortality hypothesis for both larval and juvenile stages of flatfishes. Therefore, we investigated the relationship between growth rate and environmental factors and tested the hypothesis for both larval and juvenile stages of marbled sole Pseudopleuronectes yokohamae in Hakodate Bay, Japan from 2001 to 2003. For both larval and juvenile stages, otolith growth correlated with water temperature. Eye-migrating larvae were defined as survivors of planktonic life (SV pelagic ). Large juveniles captured in late June and July were defined as survivors of shrimp predation (SV juvenile ) . To test the growth-mortality hypothesis, otolith growth was compared between the SV and the original population. During the pelagic larval stage, growth-selective survival was not detected in any of the 3 yr. During the early juvenile stage, fast-growing individuals survived selectively in 2002 but not in 2003. In 2002, population growth of juveniles was slow because water temperatures were low. Thus, juveniles in 2002 required time to exceed the size spectrum that is vulnerable to shrimp predation; consequently, the individuals that grew more rapidly were able to survive selectively. Our results show the importance of the early juvenile stage for the survival of flatfishes.
对日本鳀鱼幼体的捕食者特异性生长选择性捕食。
DOI：
--
发表时间：
2007
期刊：
Marine Ecology Progress Series 350
影响因子：
--
作者：
Takasuka;A.;Aoki;I.;Oozeki;Y.
通讯作者：
Y.
捕食者特异性生长选择性捕食幼鱼凤尾鱼
DOI：
--
发表时间：
2008
期刊：
Marine Ecology Progress Series (in press)
影响因子：
--
作者：
A. Takasuka;I. Aoki and Y. Oozeki
通讯作者：
I. Aoki and Y. Oozeki