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Updated: Jun 28, 2025

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在四种淡水湖泊鱼物种中,与温度相关的增长速度增加
Nicola S H Tien1, Joep J de Leeuw1, Jacco C van Rijssel1
1Wageningen Marine Research (WMR), Wageningen University & Research, IJmuiden, the Netherlands.
Journal of fish biology
|April 9, 2024
概括
三十年来,欧洲湖泊的鱼类生长随着气温上升而增加. 这项研究发现,尽管脱欧化,但,和的增长率更高,与气候变化影响有关.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 鱼类学 鱼类学 鱼类学
背景情况:
- 鱼类生长是气候变化影响的关键指标.
- 关于淡水鱼对温度变化增长反应的观测研究有限,特别是在湖泊生态系统中.
- 欧洲的伊塞尔湖和马克尔湖为研究长期鱼类生长动态提供了独特的环境.
研究的目的:
- 为了研究三十年来鱼,鱼,鱼和鱼鱼的鱼类生长率的变化.
- 为了将这些生长变化与IJsselmeer湖和Markermeer湖观察到的温度变化进行比较.
- 评估温度对鱼类生长的影响,考虑与之并发的环境变化,如脱欧化.
主要方法:
- 对1992年至2021年年轻年龄 (YOY) 鱼的秋季调查捕捞量进行分析.
- 对,和的年龄组进行长度分层数据集的检查,以评估随时间推移的年龄-长度关系.
- 季节性温度与YOY鱼平均长度之间的相关性分析.
主要成果:
- 在1992年至2021年期间,在这两个湖泊中观察到,和的平均年龄长度显著增加.
- 在最近的时间段,多个年龄组的鱼类生长率更高.
- 在生长季节的温度升高与,,,以及马克尔湖的鱼的年均长度有显著的相关性.
结论:
- 发现,和鱼的持续温度诱导的增长增加,尽管脱欧化.
- 皮克珀奇YOY的生长速度没有增加,可能是由于与其猎物的热范围相关的食物限制,smelt.
- 该研究强调了气温上升对欧洲大型湖泊淡水鱼类生长的重大影响.
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