当前位置: X-MOL 学术Reg. Environ. Change › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Impact of warming on the physiological condition of ridged-eye flounder Pleuronichthys lighti during the summer in the central Seto Inland Sea, Japan
Regional Environmental Change ( IF 4.2 ) Pub Date : 2020-06-22 , DOI: 10.1007/s10113-020-01672-z
Masayuki Yamamoto , Takeshi Tomiyama , Jun Shoji

Ridged-eye flounder Pleuronichthys lighti is a commercially important flatfish in East Asia. Water temperature has been increasing in the central Seto Inland Sea, Japan, with high levels (> 25 °C) in the bottom layer for 1–2 months during the summer since 1994. To study possible impact of warming on the physiological condition of the flounder, we examined the feeding activity and somatic condition of the flounder monthly from July to November in 1999–2006. Stomach content weight decreased during period with high water temperature > 25 °C from August to September, and physiological condition from August to November. Generalized linear mixed models suggested the negative effects of water temperature on stomach weight, while water temperature did not explain the variability in the physiological condition of the flounder. However, the decrease in relative condition factor from August to September was greater in the year with higher water temperature in this period. These results suggest that high water temperature during the summer in recent years appears to have been unfavorable for the flounder through negative impacts on their feeding and somatic condition.

中文翻译:

夏季在日本濑户内海中部升温对有棱纹的比目鱼Pleuronichthys lighti生理状况的影响

棱眼比目鱼Pleuronichthys lighti是东亚商业上重要的比目鱼。自1994年以来的夏季,日本濑户内海中部的水温一直在升高,底层一直处于较高水平(> 25°C),持续了1-2个月。比目鱼,我们检查了1999–2006年7月至11月每月比目鱼的摄食活性和体细胞状况。在8月至9月的高水温> 25°C期间以及8月至11月的生理状况期间,胃内容物重量下降。广义线性混合模型表明水温对胃重的负面影响,而水温不能解释比目鱼生理状况的变化。然而,在这一时期,随着水温的升高,8月至9月相对条件因子的下降幅度更大。这些结果表明,由于对它们的摄食和身体状况的负面影响,近年来夏季的高水温似乎对比目鱼不利。
更新日期:2020-06-22
down
wechat
bug