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引用本文:梅雪英,Vladimir Razlutskij,Lars G. Rudstam,Erik Jeppesen,唐雅丽,张修峰,刘正文.杂食性鱼类对浅水水体底栖—浮游生境耦合作用的影响:微综述.湖泊科学,2021,33(3):667-674. DOI:10.18307/2021.0304
Mei Xueying,Vladimir Razlutskij,Lars G. Rudstam,Erik Jeppesen,Tang Yali,Zhang Xiufeng,Liu Zhengwen.Effects of omnivorous fish on benthic-pelagic habitats coupling in shallow aquatic ecosystems: A minireview. J. Lake Sci.2021,33(3):667-674. DOI:10.18307/2021.0304
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杂食性鱼类对浅水水体底栖—浮游生境耦合作用的影响:微综述
梅雪英1, Vladimir Razlutskij2, Lars G. Rudstam3, Erik Jeppesen4,5,6, 唐雅丽7, 张修峰7, 刘正文6,7,8
1.安徽农业大学资源与环境学院, 合肥 230036;2.国家科学与生产部白俄罗斯国家科学院生物能源科学-实践中心, 明斯克 220047;3.康奈尔大学自然资源系, 纽约 14853;4.奥尔胡斯大学生物科学系, 锡尔克堡 8600;5.中东科技大学生物科学学院, 生态系统研究与应用中心/湖沼学实验室, 安卡拉 06800;6.中国丹麦科研教育中心(SDC), 北京 101408;7.暨南大学生态学系/水生生物研究所, 广州 510632;8.中国科学院南京地理与湖泊研究所, 湖泊与环境国家重点实验室, 南京 210008
摘要:
浅水水体存在着强烈的底栖—浮游生境耦合作用,耦合的结果决定着水生态系统关键特征.在缺少大型水生植物的浅水系统中,底栖藻类和浮游藻类对光照和营养盐的竞争是底栖—浮游生境耦合最为重要的生态过程之一,但该过程受到杂食性鱼类的影响.本文以浅水水体的底栖—浮游生境耦合作用为切入点,综述了杂食性鱼类对浅水水体底栖—浮游生境耦合作用的影响过程及机理.一般而言,杂食性鱼类有利于提高水层营养盐浓度,促进浮游藻类生长,降低水体透明度,不利于底栖藻类竞争,从而加速水体富营养化.但不同种类的杂食性鱼类(如底栖杂食性鱼类、偏植物性饵料的杂食性鱼类、偏动物性饵料的杂食性鱼类以及小型杂食性鱼类)因食性差异,对底栖—浮游生境耦合的影响机理不同,产生的生态环境效应各异;即便同一种杂食性鱼类也可因发育阶段不同对底栖—浮游生境耦合产生不同的影响.在人类活动、全球变暖以及富营养化等多重因子胁迫下杂食性鱼类在鱼类群落结构中的比例上升,因此,杂食性鱼类对水生态环境产生的影响深远、复杂,值得持续关注.
关键词:  底栖—浮游生境耦合  杂食性鱼类  浅水水体  浮游藻类  底栖藻类
DOI:10.18307/2021.0304
分类号:
基金项目:国家自然科学基金项目(41771100,42011530017)和国家水体污染控制与治理科技重大专项(2017ZX07603-005)联合资助.
Effects of omnivorous fish on benthic-pelagic habitats coupling in shallow aquatic ecosystems: A minireview
Mei Xueying1, Vladimir Razlutskij2, Lars G. Rudstam3, Erik Jeppesen4,5,6, Tang Yali7, Zhang Xiufeng7, Liu Zhengwen6,7,8
1.College of Resources and Environment, Anhui Agricultural University, Hefei 230036, P. R. China;2.State Scientific and Production Amalgamation Scientific-practical Center of the National Academy of Sciences of Belarus for Biological Resources, Minsk 220047, Belarus;3.Department of Natural Resources, Cornell University, New York 14853, USA;4.Department of Bioscience, Aarhus University, Silkeborg 8600, Denmark;5.Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara 06800, Turkey;6.Sino-Danish Centre for Education and Research (SDC), Beijing 101408, P. R. China;7.Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, P. R. China;8.State Key Laboratory of Lake Science and Environment, Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China
Abstract:
There is a strong coupling between benthic and pelagic habitats in shallow aquatic ecosystems. The outcomes of the coupling determine the key characteristics of these systems. The competition between benthic and pelagic algae for light and nutrient is one of the most important ecological processes of benthic-pelagic habitat coupling in shallow freshwater ecosystems when macrophytes are absent. However, the coupling is affected by omnivorous fish. This minireview first focuses on the coupling of benthic-pelagic habitats in shallow aquatic ecosystems in general. Then we review how omnivorous fish affect the benthic-pelagic interactions. Generally, omnivorous fish may increase water nutrient levels, enhance pelagic algae growth, reduce water clarity, and limit the growth of benthic algae, thereby accelerating the eutrophication process in shallow aquatic ecosystems. However, the mechanisms and overall effect differ among different fish species depending on whether their diet is benthic omnivore, plant-based, or animal-based omnivore. In addition, fish size and age also play a role. The proportion of the omnivorous fish biomass tends to increase with increasing human impact, such as fish stocking, eutrophication, and global warming, therefore, the effects of omnivorous fish on aquatic ecosystem are increasing, far-reaching, and deserve continuous attention.
Key words:  Benthic-pelagic habitats coupling  omnivorous fish  shallow aquatic system  pelagic algae  benthic algae
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