Changes in fish communities due to benthic habitat shifts under ocean acidification conditions.,Science of the Total Environment

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Changes in fish communities due to benthic habitat shifts under ocean acidification conditions.
Science of the Total Environment ( IF 8.2 ) Pub Date : 2020-04-05 , DOI: 10.1016/j.scitotenv.2020.138501
Carlo Cattano ₁ , Sylvain Agostini ₂ , Ben P Harvey ₂ , Shigeki Wada ₂ , Federico Quattrocchi ₃ , Gabriele Turco ₁ , Kazuo Inaba ₂ , Jason M Hall-Spencer ₄ , Marco Milazzo ₁

Affiliation

Ocean acidification will likely change the structure and function of coastal marine ecosystems over coming decades. Volcanic carbon dioxide seeps generate dissolved CO2 and pH gradients that provide realistic insights into the direction and magnitude of these changes. Here, we used fish and benthic community surveys to assess the spatio-temporal dynamics of fish community properties off CO2 seeps in Japan. Adding to previous evidence from ocean acidification ecosystem studies conducted elsewhere, our findings documented shifts from calcified to non-calcified habitats with reduced benthic complexity. In addition, we found that such habitat transition led to decreased diversity of associated fish and to selection of those fish species better adapted to simplified ecosystems dominated by algae. Our data suggest that near-future projected ocean acidification levels will oppose the ongoing range expansion of coral reef-associated fish due to global warming.

中文翻译：

在海洋酸化条件下，由于底栖生境转移而导致的鱼类群落变化。

在未来几十年中，海洋酸化将可能改变沿海海洋生态系统的结构和功能。火山二氧化碳的渗出会产生溶解的CO2和pH梯度，从而为这些变化的方向和幅度提供现实的见解。在这里，我们使用鱼类和底栖动物群落调查来评估日本CO2渗漏引起的鱼类群落特性的时空动态。除了以前在其他地方进行的海洋酸化生态系统研究的证据以外，我们的发现还记录了底栖生物复杂性从钙化栖息地向非钙化栖息地的转变。此外，我们发现，这种栖息地的过渡导致相关鱼类的多样性下降，并导致对这些鱼类物种的选择更加适应以藻类为主的简化生态系统。

更新日期：2020-04-06

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