Temperature impacts on reproductive parameters for Japanese anchovy: Comparison between inshore and offshore waters
Temperature impacts on reproductive parameters for Japanese anchovy: Comparison between inshore and offshore waters
复制标题
温度对日本鳀鱼繁殖参数的影响：近海和近海水域的比较
DOI：
10.1016/j.fishres.2005.07.003
复制
发表时间：
2005
影响因子：
2.4
通讯作者：
T. Funamoto
中科院分区：
文献类型：
--
作者：
A. Takasuka;Y. Oozeki;H. Kubota;Y. Tsuruta;T. Funamoto
批次的繁殖力和产卵频率的数据，以及海表温度（SST）的数据，来自最近的文献中，比较近岸样品（相模湾）和近海样品（北太平洋西部）的日本鳀鱼。与相同大小的近海相比，近海的体重更重，卵巢更重。相对批次繁殖力与性腺指数（GSI）和SST呈正相关的近岸和近海的草鱼，但与GSI和SST的关系，这两个群体之间的差异。随着SST的降低，近岸鱼类的相对批量繁殖力迅速下降，而近海鱼类的相对批量繁殖力则逐渐下降。虽然两组之间的产卵频率水平似乎相似，但与海水温度的正相关性不同：近海鱼将在约100 ℃的温度下产卵。5°C低，经常会作为近岸湖泊。比较温度对繁殖参数的影响表明，近岸和近海的产卵生态之间存在差异。
Batch fecundity and spawning frequency data for Japanese anchovy Engraulis japonicus, as well as sea surface temperature (SST) data, derived from the recent literature, were compared between inshore samples (Sagami Bay) and offshore samples (western North Pacific) of anchovy. The offshore anchovy were heavier in body weight and had heavier ovaries than the same-size inshore anchovy. Relative batch fecundity was positively related with gonadosomatic index (GSI) and SST for both the inshore and offshore anchovy; however, the relationships with GSI and SST differed between these two groups. The relative batch fecundity of the inshore anchovy rapidly decreased as SST decreased, while that of the offshore anchovy decreased rather gradually. Although the level of spawning frequency seemed similar between the two groups, the positive relationships to sea temperature differed: the offshore anchovy would spawn at temperatures ca. 5°C lower as frequently as would the inshore anchovy. Comparison of temperature impacts on reproductive parameters suggested the existence of differences between the inshore and offshore anchovy in their specific spawning ecology.
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