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Water transfer determines the regional spread dynamics of non-native fish species

Water Biology and Security 2023年第2期2卷 73-79页

作者： Jiao Qin Bjorn Victor Schmidt Lei Zhang Fei Cheng songguang xie The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhanChina Marine Resources Big Data Center of South China Sea Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang)ZhanjiangChina Department of Biological and Environmental Sciences Texas A&M UniversityCommerceTXUSA State Key Laboratory of Marine Resources Utilization in South China Sea Hainan UniversityHaikouChina

Interbasin water transfer projects(IBWT's)have emerged as dispersal corridors for aquatic species.However,little is known about how water transfer affects regional spread dynamics,or shapes the genetic diversity patterns of non-native populations.Shimofuri Goby Tridentiger bifasciatus is a globally introduced fish species with many wellestablished populations in IBWT's.Here,we used nuclear microsatellites to assess the genetic diversity and population structure of the Shimofuri Goby in its native and introduced sites belonging to two IBWT's in China.Our objectives were to(1)reveal the genetic diversity patterns of the Shimofuri Goby during regional spread,and(2)identify its mode of spreading in water transfer systems.We observed(1)a high level of genetic diversity in non-native populations without evidence of bottleneck effects,(2)that non-native populations with a longer water transfer times had a higher private allele richness,and(3)that non-native populations showed a highly mixed genetic structure,low level of genetic differentiation,and no significant relationship between geographical and genetic distances.Our results indicate that the genetic patterns of diversity of non-native populations are mainly shaped by a linear cascade spread processes due to long-distance movement of larvae,and are probably related to propagule pressure caused by the construction of water transfer.To manage the non-native populations of T.bifasciatus,preventive actions and physical removal should be implemented in IBWT's.

关键词： Biological invasions Water diversion Propagule pressure Dispersal South-to-North water transfer Tridentiger bifasciatus

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Fish diversity reduction and assemblage structure homogenization in lakes:A case study on unselective fishing in China

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Water Biology and Security 2022年第3期1卷 43-50页

作者： Han Liu Yushun Chen Rodolphe E.Gozlan Xiao Qu Wentong Xia Fei Cheng Lizhu Wang Craig P.Paukert Julian D.Olden songguang xie State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China University of Chinese Academy of Sciences Beijing100049China ISEM Universitéde MontpellierCNRSIRDEPHEMontpellierFrance International Joint Commission Great Lakes Regional Office DetroitMI48232USA U.S.Geological Survey Missouri Cooperative Fish and Wildlife Research UnitSchool of Natural ResourcesUniversity of Missouri302 Anheuser-Busch Natural Resources BuildingColumbiaMO65211USA School of Aquatic and Fishery Sciences University of WashingtonSeattleWA98195USA Department of Wildlife Fish&Environmental StudiesSwedish University of Agricultural SciencesUmeaSweden State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikou570228China Huai'an Research Center Institute of HydrobiologyChinese Academy of SciencesHuai'an223002China

Unselective fishing involves activities that target the entire assemblage rather than specific fish species,size classes,or trophic levels.This common fishing approach has been in practice for decades in inland waters in China but its implications for biodiversity remain unclear.We addressed this issue by studying fish assemblages in freshwater lakes(five fishing lakes,one reference lake,and a total of 51 sampling sites)between pre-and postfishing time-periods in Eastern China during 2017–2019.The effects of lake,fishing period,and their interactions on fish abundance,biomass,and diversity indices were assessed.Multivariate analysis was conducted to test for differences in fish assemblages among lakes and between fishing periods.After the implementation of fishing activities,significant reductions in fish species richness,abundance,biomass,and all three life-history strategies(opportunistic,equilibrium,and periodic)were observed in fishing lakes,whereas opposite trends were observed in the reference lake.Compositional similarity of fish assemblages among fishing lakes increased over the threeyear monitoring period.Our results suggest that unselective fishing reduces fish diversity and homogenizes fish assemblage structure in lakes.These findings have important implications for protecting both biodiversity and fisheries in inland waters in China and are applicable to other countries or regions that rely on fish as a major food source.

关键词： Biodiversity conservation Human stressors Inland fisheries Over exploitation Sustainability Beta diversity

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A comparison of zooplankton assemblages in Nansi Lake and Hongze Lake,potential influences of the East Route of the South-to-North Water Transfer Project,China

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Journal of Oceanology and Limnology 2021年第2期39卷 623-636页

作者： Kandathil Radhakrishnan DIVYA Shasha ZHAO Yushun CHEN Fei CHENG Lei ZHANG Jiao QIN Thundiparambil Sathrajith ARUNJITH V.Bjorn SCHMIDT songguang xie Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China Key Laboratory of Sustainable Fisheries and Environmental Protection for Lakes of Northern Jiangsu Huai’an Research CenterInstitute of HydrobiologyChinese Academy of SciencesHuai’an 223002China

Nansi Lake and Hongze Lake are both water storage lakes along the East Route of the South-to-North Water Transfer project(ESNT).Frequent changes in hydrologic properties are responsible factors for controlling the zooplankton community assemblages in both lakes,so we studied the possible influence of water transfer and environmental factors on zooplankton community structure and abundance.Zooplankton assemblages were investigated seasonally for one year in both lakes;a total of 133 and 122 zooplankton taxa were identified in Nansi Lake and Hongze Lake,respectively.The most dominant rotifer species were littoral,e.g.,Keratella tecta,Keratella valga and Lecane lunaris in Nansi Lake and Brachionus angularis,Brachionus forficula and Polyarthra vulgaris in Hongze Lake.Comparatively,Nansi Lake had a higher Shannon-Wiener diversity index value(5.13),while Hongze Lake had a higher species richness index(4.21).The average number of zooplankton across seasons in Nansi Lake(protozoa:774±63 ind./L,rotifers:4817±212 ind./L,cladocerans:896±14 ind./L,copepod:435±42 ind./L)was comparatively lower than Hongze Lake(protozoa:1238±63 ind./L,rotifers:6576±112 ind./L,cladocerans:1013±20 ind./L,copepod:534±25 ind./L).Canonical correspondence analysis identified differing environmental gradients that were most responsible for influencing zooplankton communities in the two lakes(Hongze Lake:NH4-N,total nitrogen,transparency and pH;Nansi:pH,temperature and total phosphorus).Frequent changes related to water transfer in lakes favoured the diversity of rotifers and protozoa communities.Zooplankton habitat preference,changes in community structure and opportunistic peaks and extinction of certain taxa were also observed in the study lakes.

关键词： zooplankton assemblage water transfer Hongze Lake Nansi Lake

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基于三种水质指数方法的万泉河口健康评价

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海南大学学报（自然科学版） 2024年第2期42卷 138-145页

作者：罗亦斯王智豪洪李川姚祖兵谢松光宋一清南海海洋资源利用国家重点实验室海南海口570228 海南大学生态与环境学院海南海口570228 海南大学海洋学院海南海口570228

为了解海南万泉河口的水质变化特征现状,以2021年5月至2022年5月的溶氧量、氨氮、总氮、总磷以及五日生化需氧量为水质指标,分别采用单因子评价法、综合污染指数法和改进的灰色关联分析法对水质状况进行了分析与评价,并对三种评价方法... 详细信息

为了解海南万泉河口的水质变化特征现状,以2021年5月至2022年5月的溶氧量、氨氮、总氮、总磷以及五日生化需氧量为水质指标,分别采用单因子评价法、综合污染指数法和改进的灰色关联分析法对水质状况进行了分析与评价,并对三种评价方法的结果进行比较.结果表明:万泉河口各个位点都受到了不同程度的污染,多数位点的溶氧量和总氮含量超过中国Ⅲ类水环境质量标准,其中以位于沙美内海最南端的位点和位于河口北侧狭窄河道的位点污染最为严重,总氮和生化需氧量含量超过中国Ⅲ类水环境质量标准,并且污染程度呈现明显的季节性变化,旱季的污染程度较雨季更高.同单因子评价法与综合污染指数法相比,改进的灰色关联分析法能够较为全面且客观地评价污染物的影响,并能判断主要的污染物类别,可有效地进行水质评价.

关键词：水质评价万泉河口单因子评价法综合污染指数法改进的灰色关联分析法

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Opportunistic-tended life history traits of Siniperca kneri in the Three Gorges Reservoir,China: potential responses to impoundment

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Journal of Oceanology and Limnology 2019年第2期37卷 694-705页

作者： ZHAO Shasha CHENG Fei HOU Gang HU Zhengyu xie songguang Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China University of Chinese Academy of Sciences Beijing 100049 China College of Fisheries Guangdong Ocean University Zhanjiang 524088 China Key Laboratory of Sustainable Fisheries and Environmental Protection for Lakes of Northern Jiangsu Huai’an Research Center Institute of Hydrobiology Chinese Academy of Sciences Huai’an 223002 China

Reservoir impoundment changes original fluvial habitats into lentic environments. Fish species adapted to lentic habitats may take the advantage of such habitat changes and show typical life history traits might facilitate the population increase. Siniperca kneri rarely occurred in fishery landing in the Three Gorges Reservoir (TGR) area before its impoundment in 2003, but it is now a dominant species. In this study, a total of 438 females of S . kneri were collected monthly during September 2012 through January 2014 using gill nets in the TGR. The age, growth, and reproductive biology were then investigated, and compared with other S . kneri populations. The standard length at age 1 was 149.9 mm in the TGR, which is larger than the three compared populations (i.e., Sandaohe Reservoir, Xinfengjiang Reservoir, and North River), but smaller than one (the Guishi Reservoir). The youngest mature female in the TGR was age 1, which is younger than that of the two compared populations (i.e., Xinfengjiang Reservoir and the North River). The relative fecundity in the TGR was 140 eggs/g, which is higher than that of the only available compared population (Xinfengjiang Reservoir, 96 eggs/g). Our results demonstrated that S . kneri in the TGR tended to have faster growth in the first year, a younger age at first maturation, and higher reproductive eff ort. We suggest that such opportunistic-tended life history traits might facilitate rapid increase of the population.

关键词： Siniperca kneri life history traits opportunistic growth reproduction colonization

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Microsatellite DNA variation among collections of bronze gudgeon Coreius heterodon in the mainstem of the Yangtze River,China

Microsatellite DNA variation among collections of bronze gud...

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中国海洋湖沼学会鱼类学分会、中国动物学会鱼类学分会2012年学术研讨会

作者： Fei Cheng Wei Li Qingjiang Wu Eric Hallerman songguang xie Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of HydrobiologyChinese Academy of Sciences Wuhan Botanical Garden Chinese Academy of Sciences Department of Fish and Wildlife Conservation Virginia Polytechnic Institute and State University

Bronze gudgeon Coreius heterodon is an endemic and economically important fish in the Yangtze River whose abundance has declined dramatically because of dam construction,overfishing,and water pollu

关键词： Coreius heterodon bronze gudgeon Microsatellite DNA population differentiation Yangtze River

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长江上游合江江段鱼类早期资源与向家坝水库生态调度效果初步研究

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中国环境监测 2022年第1期38卷 95-103页

作者：周岐兵程飞王震曹娟唐会元朱其广谢松光大连海洋大学辽宁大连116023 中国科学院水生生物研究所中国科学院水生生物多样性与保护重点实验室湖北武汉430072 水利部中国科学院水工程生态研究所湖北武汉430079

合江江段是长江上游干流保持河流生境、适宜喜流水性鱼类栖息的重要江段。为了掌握合江江段鱼类早期资源动态,分析向家坝水库生态调度的效果,于2020年向家坝水库生态调度前后,开展了鱼类早期资源逐日监测。研究期间,共采集到鱼类早期资... 详细信息

合江江段是长江上游干流保持河流生境、适宜喜流水性鱼类栖息的重要江段。为了掌握合江江段鱼类早期资源动态,分析向家坝水库生态调度的效果,于2020年向家坝水库生态调度前后,开展了鱼类早期资源逐日监测。研究期间,共采集到鱼类早期资源5目10科38种(属),其中仔鱼29种(属)、鱼卵19种(属),包括特有鱼类6种。广适应性和喜流水性种类分别有18种和15种,其中,仔鱼分别为17种和11种,鱼卵分别为6种和9种。仔鱼平均密度为(89.06±78.55)ind./1000 m^(3),广适应性鱼类太湖新银鱼(Neosalanx taihuensis)和吻虎鱼属(Rhinogobius spp.)占绝对优势。鱼卵平均密度为(19.89±20.5)ind./1000 m^(3),喜流水性种类吻(Rhinogobio typus)、铜鱼(Coreius heterodon)等占优势地位。调度期间,共采集到仔鱼9种、鱼卵7种(其中6种为漂流性卵,含2种特有种),仔鱼和鱼卵密度的增加与调度过程基本同步。研究结果表明,合江江段是喜流水性鱼类(包括多种特有鱼类)重要的产卵和育幼江段,向家坝水库生态调度促进了产漂流性卵鱼类(包括多种特有鱼类)的繁殖。

关键词：合江江段鱼卵仔鱼喜流水鱼类特有鱼类向家坝水库生态调度

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冬瓜WRKY基因家族鉴定及表达分析

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广东农业科学 2024年第2期51卷 39-52页

作者：赵添悦蔡金森王敏谢大森杨松光崔晓娟高苏娟仲恺农业工程学院轻工食品学院广东广州510225 广东省农业科学院蔬菜研究所/广东省蔬菜新技术研究重点实验室广东广州510640

【目的】WRKY转录因子家族在植物生长发育、抵御胁迫等过程起着至关重要的作用。挖掘参与冬瓜(BenincasahispidaCogn.)非生物胁迫的WRKY基因家族成员,探究其生物学功能。【方法】基于冬瓜基因组数据库鉴定冬瓜WRKY成员,利用生物信息学... 详细信息

【目的】WRKY转录因子家族在植物生长发育、抵御胁迫等过程起着至关重要的作用。挖掘参与冬瓜(BenincasahispidaCogn.)非生物胁迫的WRKY基因家族成员,探究其生物学功能。【方法】基于冬瓜基因组数据库鉴定冬瓜WRKY成员,利用生物信息学的方法系统分析其WRKY基因家族成员的蛋白理化性质、系统发育、保守基序、顺式作用元件,通过qPCR分析冬瓜WRKY的表达情况。【结果】冬瓜WRKY基因家族有57个成员,氨基酸数目在126~650之间,相对分子质量在13.92~71.68 kD之间;蛋白等电点在4.61~9.69之间。根据系统进化树将该家族分为3个类群,第二类群又分为5个亚组。冬瓜WRKY外显子有2~6个。染色体定位分析发现,有56个基因定位在12条染色体上,1个基因未定位在染色体上。保守基序分析显示,Motif1和Motif3存在于56个基因,且同一类群具有类似的保守基序结构。同时,冬瓜WRKY基因的启动子上均含有应激反应相关元件、激素响应元件。WRKY在冬瓜不同组织和果实发育时期特异表达。RT-PCR结果表明非生物胁迫和激素处理冬瓜可诱导部分WRKY基因的表达。【结论】共鉴定出57个冬瓜WRKY基因,同亚组的成员具有类似的保守基序结构。冬瓜WRKY基因在不同组织中的表达存在差异,其中,BhWRKY2、BhWRKY5、BhWRKY39、BhWRKY11、BhWRKY31、BhWRKY53参与不同的胁迫响应。

关键词：冬瓜 WRKY基因家族生物信息学系统发育分析表达分析

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控释肥在水稻应用的效果

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北京农业 2012年第6期 133-134页

作者：丘潼开肖志云谢颂光广东省大埔县农业局土肥研究站广东省大埔县茶阳镇农业站

通过试验,了解控释肥在水稻使用中对水稻生长发育和产量的影响情况,以便探讨该肥料在大埔县水稻生产中的应有前景和相配套的技术措施。

关键词：水稻控释肥试验

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冬瓜抗氧化基因的克隆及其在非生物胁迫下的表达分析

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广东农业科学 2022年第7期49卷 33-41页

作者：钱玉磊闫晋强杨松光刘文睿谢大森吴智明江彪仲恺农业工程学院园艺园林学院广东广州510225 广东省农业科学院蔬菜研究所/广东省蔬菜新技术研究重点实验室广东广州510640

【目的】鉴定、克隆冬瓜BhiOXR基因,明确其在非生物胁迫下的表达特征,为深入研究冬瓜BhiOXR基因的功能奠定基础。【方法】从冬瓜基因组鉴定BhiOXR基因家族成员,设计扩增BhiOXR基因CDS的全长引物,通过RT-PCR克隆BhiOXR基因。以低温(4℃)... 详细信息

【目的】鉴定、克隆冬瓜BhiOXR基因,明确其在非生物胁迫下的表达特征,为深入研究冬瓜BhiOXR基因的功能奠定基础。【方法】从冬瓜基因组鉴定BhiOXR基因家族成员,设计扩增BhiOXR基因CDS的全长引物,通过RT-PCR克隆BhiOXR基因。以低温(4℃)、高温(40℃)、盐胁迫(150 mmol/L NaCl溶液)和干旱胁迫(10%PEG6000溶液)处理冬瓜高代自交系B227幼苗,利用qRT-PCR技术分析冬瓜BhiOXR基因分别在上述4种非生物胁迫处理下(处理0、4、8、12、24 h)的表达特征。【结果】鉴定到6个冬瓜BhiOXR成员,并进行全长基因克隆和生物信息学分析。qRT-PCR分析结果表明,BhiOXR1响应低温、高温和干旱胁迫,不响应盐胁迫;BhiOXR2a、BhiOXR2b和BhiOXR4响应低温、盐和干旱胁迫,不响应高温胁迫;BhiOXR3和BhiOXR5响应低温、高温和盐胁迫,不响应干旱胁迫。【结论】明确了冬瓜BhiOXR基因受低温、高温、盐和干旱等非生物胁迫诱导表达,并且不同BhiOXR基因响应的非生物胁迫有差异,由此推测6个BhiOXR成员可能在抵御不同非生物胁迫过程中所表现的抗氧化作用不尽相同,为进一步探究冬瓜BhiOXR基因的生物学功能奠定基础。

关键词：冬瓜抗氧化基因(OXR) 非生物胁迫表达特征

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