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在斑马鱼入侵的湖泊中,鱼和黄鱼的度增加

Naomi S Blinick¹, Denver Link¹, Tyler D Ahrenstorff²

¹Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108, United States of America.

The Science of the total environment

|November 15, 2024

概括

侵袭性斑马贝显著增加了明尼苏达州湖泊中鱼和黄鱼的含量. 这种生物积累对鱼类健康和人类消费的建议构成风险.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
水生生态学水生生态学

背景情况:

斑马 (Dreissena polymorpha) 是一种侵入性物种,影响水生生态系统.
侵入性物种可以改变鱼类中的循环和生物积累.
以前的研究还没有广泛研究斑马对内陆湖中的鱼类的影响.

研究的目的:

为了评估鱼类组织度和食物网的差异与斑马和没有斑马的湖泊.
在评估斑马的影响时控制湖泊和流域特征.
确定对渔业和人类健康的影响.

主要方法:

鱼类组织度的比较分析侵袭与未被侵袭的湖泊.
评估与斑马存在有关的食物网动态.
对混湖泊和流域变量进行统计控制.

主要成果:

在有斑马贝的湖泊中,成年和年幼的鱼和黄鱼的度显著更高.
侵袭湖泊中的鱼达到了水平,引发了较小尺寸和更高速度的消费建议.
侵袭湖泊中的鱼类更多地利用了沿海资源,但没有增加食物营养水平.

结论:

斑马的入侵导致了关键鱼类中的生物积累增加.
来自侵袭湖泊的鱼类中含量升高对生态系统健康有重大影响.
调查结果突出了鱼类消费对人类健康的潜在风险,需要更新咨询意见.

关键词:

污染物污染物是一种污染物.鱼类鱼类鱼类鱼类鱼类食物网是一种食物网络.侵入性物种是一种入侵性物种.水星水星水星水星水星沃利耶 (Walleye) 是一个小镇.黄色的座座是一种黄色的座座.斑马贝是什么样子的

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