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上海海洋大学海洋酸化相关研究取得系列重要进展

发布日期: 2021-07-30 责任编辑: 蔡霞本条信息已被查看了 29设置

随着二氧化碳等温室气体的大量人为排放,全球范围内的温室效应不断加剧。海洋作为大气中二氧化碳的主要吸收者,每年吸收约四分之一人为排放的二氧化碳,局部海域发生海水酸化现象。与此同时,观测发现自然环境中海洋酸化往往不是单独出现的,而可与其他环境变化共同发生,如海水缺氧和升温。许多研究表明,海洋酸化,升温和缺氧正在成为对全球沿海生态系统的重要威胁,对海洋生物存在广泛影响。在国家自然科学基金、上海市浦江人才计划(18PJ1404000)、上海市自然科学基金等项目的资助下,近期,上海海洋大学水产与生命学院王有基课题组在海洋酸化相关研究中取得了系列重要进展,相关成果陆续发表在Science of the Total Environment,Chemosphere,Journal of Oceanology and Limnology,Helgoland Marine Research等环境科学和海洋学领域主流刊物上。

在海洋酸化对海洋无脊椎动物的行为影响方面的综述论文中,团队总结了海洋酸化影响部分无脊椎动物,如贝类幼虫早期发育阶段的沉降和附着;延长海胆和螺类的觅食、移动和决策时间,从而影响其捕食效率;影响部分双壳生物的贝壳的生长并降低足丝附着强度,从而削弱其防御天敌的能力;以及影响甲壳动物如蟹等的游泳能力等。除此之外,海水酸化可以通过刺激神经递质,如GABA的分泌等方式影响海洋无脊椎动物的行为。

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(供稿: 水产与生命学院)
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