Multi-species regime shifts reflected in spawning temperature optima of small pelagic fish in the western North Pacific
Multi-species regime shifts reflected in spawning temperature optima of small pelagic fish in the western North Pacific
复制标题
北太平洋西部小型中上层鱼类产卵最佳温度反映的多物种状态变化
DOI：
10.3354/meps07407
复制
发表时间：
2008
影响因子：
2.5
通讯作者：
H. Kubota
中科院分区：
文献类型：
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作者：
A. Takasuka;Y. Oozeki;H. Kubota
小型中上层鱼类在全球复杂的海洋生态系统中表现出周期性的种群动态。这些鱼类制度的变化与海洋制度的变化，但是，生物机制仍然没有得到解决，并被认为主要取决于通过食物网的多步骤过程。在本研究中，我们专注于物种特异性的温度最佳值，并表明产卵温度最佳值的相似性和差异反映了西北太平洋多物种中上层鱼类之间的长期种群动态。产卵温度的最适条件进行了检查，为鱼，沙丁鱼，鲭鱼和竹荚鱼，根据发生的卵和幼虫，使用一个长期（1978年至2004年）的数据集的鸡蛋和大瓦尔调查日本太平洋沿岸。凤尾鱼产卵温度呈高原型，峰值温度约为100 ℃。22摄氏度。相反，沙丁鱼和鲭鱼表现出陡峭的峰值模式，在约。分别为16和18°C。相反，竹荚鱼显示了一个非常相似的产卵温度模式，以淡水鱼。这些关系与它们在长期种群动态中的繁荣和崩溃是一致的。此外，沙丁鱼和鲭鱼狭温产卵模式表现出显着的波动相对于鱼和竹荚鱼更广温功能。多物种的比较提取了一个简单而直接的路径：如果在大尺度上看，温度对重要参数的直接影响提供了一个合理的解释多物种的制度转变的小型中上层鱼类在西北太平洋。
Small pelagic fish have exhibited cyclic population dynamics in complex marine ecosys- tems worldwide. These fish regime shifts have been associated with ocean regime shifts; however, the biological mechanisms have remained unresolved and have been considered to depend mainly on multi-step processes through food webs. In the present study, we focus on species-specific temper- ature optima and show that similarities and differences in spawning temperature optima reflect those in the long-term population dynamics among multi-species pelagic fish in the western North Pacific. Spawning temperature optima were examined for anchovy, sardine, mackerel and jack mackerel, based on the occurrence of eggs and larvae, using a long-term (1978 to 2004) data set of egg and lar- val surveys off the Pacific coast of Japan. Anchovy exhibited a plateau-like spawning temperature pattern with a peak at ca. 22°C. In contrast, sardine and mackerel exhibited steeply peaked patterns with marked peaks at ca. 16 and 18°C, respectively. On the contrary, jack mackerel showed a very similar spawning temperature pattern to anchovy. These relationships were consistent with their flourish and collapse in long-term population dynamics. Furthermore, sardine and mackerel with stenothermal spawning patterns showed dramatic fluctuations relative to anchovy and jack mackerel with more eurythermal features. The multi-species comparisons extracted a simple and direct path- way: if viewed at large scales, direct temperature impacts on vital parameters provide a plausible explanation of multi-species regime shifts of small pelagic fish in the western North Pacific.
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
Md. Shahidul Islam;Masahiro Ueno;Yoh Yamashita
通讯作者：
Yoh Yamashita
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.