期刊文献+
共找到189篇文章
< 1 2 10 >
每页显示 20 50 100
A Preliminary Study on the Diversity of Fish Species and Marine Fish Faunas of the South China Sea 被引量:1
1
作者 MA. Caihua YOU Kui +2 位作者 ZHANG Meizhao LI Fengqi CHEN Dagang 《Journal of Ocean University of China》 SCIE CAS 2008年第2期210-214,共5页
There are 3048 species of fish occurring in the China Seas (CS), of which at least 2321 species are found in the South China Sea (SCS), belonging to 35 orders, 236 families and 822 genera. The fish species diversi... There are 3048 species of fish occurring in the China Seas (CS), of which at least 2321 species are found in the South China Sea (SCS), belonging to 35 orders, 236 families and 822 genera. The fish species diversity is analyzed in this paper based on biogeography, biostatistics, fishing methods, etc. It is found that the regional environment, especially biological factors, plays an important role in the distribution of faunas, and there are two fish faunas in the SCS, one in the north and another in the center and south. This regional division is of value for sustainable fishery production and eiTlcient management of fishery resources. 展开更多
关键词 fish fauna BIODIVERSITY cluster analysis marine environment the South China Sea
下载PDF
FISH FAUNA OF THE HWAJINPO LAKE,KOREA
2
作者 JUNKIL Choi OSAMU Mitamura +1 位作者 YASUSHI Seike KAORU Fujinaga 《水生生物学报》 CAS CSCD 北大核心 2006年第6期633-637,共5页
The Fish fauna of the Hwajinpo Lake,one of the lagoons on the east coast of Korea,was investigated during six days between November,2003 and May,2004.Fifteen species belonging to eight families and six orders were col... The Fish fauna of the Hwajinpo Lake,one of the lagoons on the east coast of Korea,was investigated during six days between November,2003 and May,2004.Fifteen species belonging to eight families and six orders were collected.Among the 15 species recorded,brackish water and/or marine fishes were represented by six species,while three additional species were identified as migratory fish,and six species were purely freshwater fish.During the six months,all of the survey period with six sampling dates,nine species belonging to six families were collected at Station 1,with Chaenogobius urotaenia presenting the highest biomass (39%).Twelve species belonging to six families were collected at Station 2,with Carassiu cuvieri showing the highest biomass (20%).Five species belonged to three families at Station 3,with Hemiculter eigenmanni showing the highest biomass (69%).The dominant and subdominant species were C.cuvieri (16%),Carassius auratus and Tribolodon hakonensis (14%),respectively.Also,diversity indices were 0.95 (Station 3) and 2.08 (Station 2),while the dominant indices were 38.40 (Station 2) and 87.18 (Station 3).The evenness indices were calculated with 0.59 (Station 3) and 0.84 (Station 2). 展开更多
关键词 fish fauna Hwajinpo Lake LAGOON
下载PDF
Comparative Study of Physico-Chemical and Biological Water Quality Upstream and Downstream of the Manantali Dam and Hydropower Plant from 2019 to 2023
3
作者 Joseph Mbeur Faye Saïdou Ndao Louis Eugène Victor Sambou 《Journal of Geoscience and Environment Protection》 2024年第10期111-131,共21页
The comparative study is designed to monitor the physico-chemical and biological quality of the water upstream and downstream of the Manantali hydroelectric dam. The physico-chemical parameters are sampled at 3 measur... The comparative study is designed to monitor the physico-chemical and biological quality of the water upstream and downstream of the Manantali hydroelectric dam. The physico-chemical parameters are sampled at 3 measuring points located at Station 1 of the dam’s reservoir, immediately downstream of the dam and hydroelectric power station at the level of the damping basin, and at the Bafing-Bakoye confluence at Bafoulabe (Bafing side), the biological parameter (ichthyological fauna) is characterized by ichthyological inventories of landings in the various fishing camps around the reservoir and at the Mahina market (Bafing side). The study assesses the environmental impact of hydroelectric structures and facilities on the physico-chemical and biological quality of the water. Physical parameters such as temperature, conductivity, pH, turbidity and chemical parameters such as dissolved oxygen, nitrite, nitrate, manganese, hydrogen sulfide, ammonium, iron, silica and phosphorus are measured in order to identify the various variations existing between the different measurement points. Analysis of the values obtained shows very high similarities between the various measuring points, and most parameters comply with WHO standards, with the exception of turbidity, manganese, hydrogen sulfide and iron. These data attest to good water quality, allowing normal development of flora and fauna with a low level of degradation. Comparative analysis of the ichthyological fauna shows the existence of 34 species of fish belonging to 11 families at the fishing camps around the Manantali dam reservoir, and 37 species belonging to 12 families at Mahina on the Bafing River. At Mahina on the Bafing, the specific composition of the catches is characterized by the presence of the Claroteidae family and four species (Alestes sp., Brycinus leuciscus, Auchenoglanis occidentalis, Distichodus engycephalus) not recorded at the camps. In contrast, all the fish families recorded in the camps are present in Mahina, and only one species (Hydrocynus brevis) is absent from the Mahina landings. The difference in species richness could be explained by the upwelling of some fish from the Bakoye to the Bafing at the confluence. The Shannon diversity index of 4.07 at Mahina is higher than the 2.98 recorded at camp level, and the equitability index of 0.78 at Mahina and 0.58 at the camp level indicate average diversity and the non-dominance of one species over the others. The diversification index values of 3.09 and 3.08 at camp level and Mahina respectively show that the number of theoretical habitats is three. 展开更多
关键词 Manantali Dam Physical Parameters Chemical Parameters fish fauna
下载PDF
Composition of fish species in the Bering and Chukchi Seas and their responses to changes in the ecological environment 被引量:3
4
作者 LIN Longshan CHEN Yongjun +5 位作者 LIAO Yunchih ZHANG Jing SONG Puqing YU Xingguang WU Risheng SHAO Kwang-tsao 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2014年第6期63-73,共11页
Based on trawl surveys in the Bering Sea and Chukchi Sea during the 2010 Chinese National Arctic Research Expedition, fish biodiversity characteristics, such as fish composition, dominant species, biodiversity, and fa... Based on trawl surveys in the Bering Sea and Chukchi Sea during the 2010 Chinese National Arctic Research Expedition, fish biodiversity characteristics, such as fish composition, dominant species, biodiversity, and faunal characteristics were conducted. We also discussed the responses of fishes to the quick changes in Arctic climate. The results showed that a total of 41 species in 14 families were recorded in these waters. The dominant species were Hippoglossoides robustus, Boreogadus saida, Myoxocephalus scorpius, Lumpenus fabricii, and Artediellus scaber. There were 35 coldwater species, accounting for 85.37%, and six cold temperate species, occupying 14.63%. The habitat types of fish could be grouped as follows: 35 species of demersal fishes, five benthopelagic fishes, and one pelagic fish. The Shannon-Wiener diversity index (H') (range between 0 and 2.18, 1.21 on average) was not high, and descended from south to north. Climate change has caused some fishes to shift along their latitudinal and longitudinal distribution around the Arctic and Subarctic areas, and this could lead to the decline of Arctic fishery resources. 展开更多
关键词 ARCTIC fish fauna BIODIVERSITY responses to ecological environment
下载PDF
A Comparative Study of Fish Community in Four Main Estuaries of China Southeastern Coastal Areas and Their Adjacent Waters 被引量:1
5
作者 HUANG Liangmin ZHANG Yazhi +1 位作者 JIN Xianshi SHAN Xiujuan 《Journal of Ocean University of China》 SCIE CAS 2010年第2期169-177,共9页
Based on literature and survery data of fish composition collected by bottom trawl investigation from 2006 to 2007 infour main estuaries of China southeastern coastal areas and their adjacent waters,changes of the tax... Based on literature and survery data of fish composition collected by bottom trawl investigation from 2006 to 2007 infour main estuaries of China southeastern coastal areas and their adjacent waters,changes of the taxonomic diversity across spatialand temporal scales of fish community were analyzed by taxonomic diversity indices.The results are as follows:a total number of1397 fish species(including some freshwater species),belonging to 2 classes,42 orders,186 families and 593 genera,were collected inthe studied sea areas.The species richness increased with lower latitudes,particularly so with Perciformes.There were 339 fish spe-cies in the Yangtze River Estuary and adjacent waters,belonging to 2 classes,31 orders,101 families and 231 genera.There were 535fish species in the Minjiang River Estuary and adjacent waters,belonging to 2 classes,33 orders,133 families and 323 genera.A totalnumber of 803 fish species were collected in the Jiulongjiang River Estuary and adjacent waters,which belonged to 2 classes,35 orders,155 families and 419 genera.And 1021 fish species which belonged to 2 classes,32 orders,153 families,and 466 genera were collectedin the Pearl River Estuary and adjacent waters.The numbers of orders and families of fish species from the northern to the southern wa-ters first increased and then decreased.The average variation in taxonomic distinctness(Λ+)gradually decreased with lower latitudes inthe four estuaries and adjacent waters.There were no significant differences in the average taxonomic distinctness(△+)among the fourestuaries and adjacent waters,and fish fauna were closely related with each other,and all of them belonged to the same zoogeographicalfauna(Indian-Malaysia fauna).Fish composition in the Minjiang River Estuary and adjacent waters was more similar to that in the Jiu-longjiang River Estuary and adjacent waters among the four estuaries.Compared with the historical data,the average taxonomic dis-tinctness of fish community showed a great decrease in the Minjiang River Estuary and the Jiulongjiang River Estuary and their adjacentwaters. 展开更多
关键词 the Minjiang River Estuary the Jiulongiiang River Estuary the Yangtze River Estuary the Pearl River Estuary taxonomic diversity fish fauna
下载PDF
Fishery and the Tourism Potential of Agbokum Waterfalls, Nigeria
6
作者 Gabriel Ujong Ikpi Benedict Obeten Offem 《Journal of Water Resource and Protection》 2012年第9期733-745,共13页
Species richness and human activities in natural environments are among the most important recreational needs. Monthly studies of aquatic fauna, artisanal fisheries and tourism characteristics was conducted during wet... Species richness and human activities in natural environments are among the most important recreational needs. Monthly studies of aquatic fauna, artisanal fisheries and tourism characteristics was conducted during wet and dry seasons, over a two year period in the three landscapes along the 6817.7 m length of Agbokum waterfalls by using a close-ended pre-coded survey instrument. Through MANOVA analysis of the 1780 respondents we found strong positive association between peoples visits to the recreational areas and the type of landscape in which the respondents felt happy. People who felt happier in landscape dominated by waterfalls, visit the middle reaches of the river for outdoor recreation more often while people who feel happy in landscapes dominated by slow water current with an extensive wide area and floodplains, visit downstream reaches of the waterfalls more often. Activities performed more often along downstream reaches include fishing, bathing/swimming, boating and hunting while more frequent activities in the middle reaches (waterfalls) include taking photographs, picnics, enjoying nature, outing with family and friends, looking at view, resting and relaxing. A total of 5484 fish representing 22 species belonging to 16 genera from 9 families were sampled with 10 species being restricted to wet season and only 1 in the dry. The number of taxa and individuals present at upstream, midstream and downstream reaches were 16 (2003), 13 (1034), 17 (2447), respectively. Tilapia zillii, Clarias gariepinus and Labeo coubie dominated overall catch constituting 35.5%. Twenty five operational boats counted during the period of study, were only used downstream by 25 full-time fishermen, 87 part-time, 44 shoreline fishermen and 36 assistant fishermen. Common gears were the hook and line constituting 45.8%, cast and dip net (10.1%) bailing (8.7%), gill nets (7.3%), seine net (6.4%) Traps (5.5%), lift net (4.7%) Dip nets (0.9%), poisoning (2.8%), cutlass (3.3%) and spear (1%). Seasonally occurring aquatic fauna include crustaceans (Atya gaboneensis and Palaemon paucidens) (23.5%) oysters (Etheria elliptica) (15.4%), clams (Galacea paradoxa) (20.8%), Manatee (Trichechus senegalensis) (2.5), Hippopotamus amphibious (1.8%), Otter (Lutra macullicolis) (0.5%), Crocodyles (Crocodylus niloticus, Crocodylus cataphractus (Aligata) and Osteolaemus tetraspsis) (18.8%). The nile monitor (Varanus nilaticus), aquatic snake (Anoscopus sp), and three species of water turtle (Kimxys erosa, Pelumedusa sp and Peliosus sp) (21.6%). Relatively higher faunal densities and species richness in the upstream and downstream reaches coupled with waterfalls in middle reaches can makes Agbokum waterfalls a tourism destination if only management strategies include Legislation to conserve these natural resources. 展开更多
关键词 Agbokum Waterfalls fishING ACTIVITIES fish Species RECREATIONAL ACTIVITIES Landscapes AQUATIC fauna Gears
下载PDF
鸭绿江丹东段鱼类资源调查
7
作者 严林 孙述好 +5 位作者 徐浩然 彭祖想 兰婷 刘佳南 王伟 韩雨哲 《安徽农业科学》 CAS 2023年第8期91-95,共5页
为探究鸭绿江的鱼类资源群落组成现状,于2020年11月-2021年10月在鸭绿江丹东段进行鱼类资源调查。结果表明,共获得31种鱼类,隶属于6目12科29属,其中以鲤形目种类最多,共2科17属19种,占总种类数的61.29%;其次为鲈形目,共4科5属5种,占总... 为探究鸭绿江的鱼类资源群落组成现状,于2020年11月-2021年10月在鸭绿江丹东段进行鱼类资源调查。结果表明,共获得31种鱼类,隶属于6目12科29属,其中以鲤形目种类最多,共2科17属19种,占总种类数的61.29%;其次为鲈形目,共4科5属5种,占总种类数的16.13%;其他包括鲇形目2科3属3种,鲑形目2科2属2种,鳗鲡目和七鳃鳗目各1科1属1种。从分区和区系组成上看,鸭绿江丹东流域鱼类大多数属于中国平原区系复合体和北方平原区系复合体,其次为晚第三纪早期区系复合体和南方平原区系复合体。因此,中国平原区系复合体、北方平原区系复合体、晚第三纪早期区系复合体和南方平原区系复合体是组成鸭绿江丹东段鱼类区系的基础。对比已有资料,鱼类种类数明显减少,其原因可能是人类活动加剧造成环境的污染和采样存在一定的局限性等。 展开更多
关键词 鱼类资源 鱼类区系 保护对策 鸭绿江
下载PDF
新疆塔里木河水系土著鱼类区系组成与分布 被引量:67
8
作者 马燕武 郭焱 +4 位作者 张人铭 吐尔逊 谢春刚 刘建 李林 《水产学报》 CAS CSCD 北大核心 2009年第6期949-956,共8页
2003年-2007年对新疆塔里木河水系土著鱼类的种类和分布进行了一次全面调查,根据不同的海拔和生境,在整个调查范围内设置鱼类采集点200个,共采集鱼类标本3000余号,经鉴定有1目2科5属12种,均为中亚高山复合体的裂腹鱼和高原鳅种类。其中... 2003年-2007年对新疆塔里木河水系土著鱼类的种类和分布进行了一次全面调查,根据不同的海拔和生境,在整个调查范围内设置鱼类采集点200个,共采集鱼类标本3000余号,经鉴定有1目2科5属12种,均为中亚高山复合体的裂腹鱼和高原鳅种类。其中国家Ⅰ类保护动物扁吻鱼仅分布在海拔1500m以下,裂腹鱼属鱼类主要聚居于海拔1300~2700m一带,裸重唇鱼属鱼类主要聚居于海拔1500~2900m一带,重唇鱼属鱼类主要聚居于海拔2700~3700m一带。高原鳅分布在裂腹鱼分布范围之内,最高可至3700m,土著鱼类的水平及垂直分布差异明显,水平分布表现出明显的多样性和地域性,垂直分布具有明显的地带性。塔里木河水系土著鱼类在大尺度、大空间的分布格局有缩小的趋势,扁吻鱼栖息地岛屿化程度高。 展开更多
关键词 土著鱼类 区系 分布 塔里木河
下载PDF
太湖鱼类区系变化和渔获物分析 被引量:35
9
作者 朱松泉 刘正文 谷孝鸿 《湖泊科学》 EI CAS CSCD 北大核心 2007年第6期664-669,共6页
20世纪80年代之前,太湖有鱼类107种、25科,属4个生态类型:洄游型、江湖洄游型、河流型和湖沼型.自2002年9月至2006年1月进行了太湖鱼类采集,共采得鱼类60种、18科.其中,除放流的鱼类外,都能在封闭的湖泊环境中完成生命周期(湖沼生态型)... 20世纪80年代之前,太湖有鱼类107种、25科,属4个生态类型:洄游型、江湖洄游型、河流型和湖沼型.自2002年9月至2006年1月进行了太湖鱼类采集,共采得鱼类60种、18科.其中,除放流的鱼类外,都能在封闭的湖泊环境中完成生命周期(湖沼生态型);团头鲂、鲮、银鲫和尼罗罗非鱼属移植种类.团头鲂、鳙、鲢、草鱼和青鱼是从20世纪60年代起每年向湖中放流的鱼类;鳗鲡则是自1976年起放流从长江采捕的鳗苗.20世纪50年末至1985年,长江和太湖之间人为隔断,不能在静水中繁殖的鱼类在湖中消失,自然鱼类资源下降;加上过度捕捞和对繁殖群体缺少保护,导致鱼类群体小型化.最后,对太湖渔业资源的优化进行了讨论,并进一步提出对策. 展开更多
关键词 鱼类区系变化 渔获物分析 太湖
下载PDF
新疆开都河鱼类区系组成与分布 被引量:9
10
作者 马燕武 郭焱 +3 位作者 陈朋 谢春刚 祁峰 牛建功 《淡水渔业》 CSCD 北大核心 2013年第5期21-26,共6页
2004~2013年间对新疆开都河鱼类的种类和分布进行了10次野外调查,根据不同的海拔和生境,设置鱼类采集点22个,共采集鱼类标本1990号,分属3目7科19种。其中土著鱼类3种,由裂腹鱼类和高原鳅类构成;外来鱼类16种,隶属2目5科16属,... 2004~2013年间对新疆开都河鱼类的种类和分布进行了10次野外调查,根据不同的海拔和生境,设置鱼类采集点22个,共采集鱼类标本1990号,分属3目7科19种。其中土著鱼类3种,由裂腹鱼类和高原鳅类构成;外来鱼类16种,隶属2目5科16属,鲤科鱼类占绝对优势。与历史资料相比,土著鱼类中扁吻鱼(Aspiorhynchus laticeps)、塔里木裂腹鱼(Sehiorhorax biddulphi)、扁嘴裂腹鱼(Schiorhorax esocinu)和高原裸裂尻鱼(Schiorhorax stoliczkae Steindachner)未见,而外来鱼类则增加了12种,形成了土著鱼类与外来鱼类共存的生态格局;开都河鱼类区系及分布有较明显的多样性和地域性,受人为干扰、水温及大坝阻隔的影响,出山口后河段以外来鱼类占主导,而出山口以上河段则仍以土著鱼类为主,二者在空间分布上有较明显的界限。开都河鱼类区系的演变过程可分为两个阶段:稳定和发展阶段;人工引种后剧烈变化阶段。土著鱼类的保护管理应由政府牵头,进行保护、监测、科研等规划的顶层设计,突出栖息地生境的保护。 展开更多
关键词 鱼类区系 组成 分布 开都河
下载PDF
泸沽湖鱼类区系现状及人为影响成因的初步探讨 被引量:19
11
作者 孔德平 陈小勇 杨君兴 《Zoological Research》 CAS CSCD 北大核心 2006年第1期94-97,共4页
泸沽湖是位于滇西北的一个断陷湖泊,为滇川两省共有。文献记录泸沽湖原始的鱼类区系由4种鱼类组成,隶属于裂腹鱼属和泥鳅属。于2001 ,2002和2004年3次考察泸沽湖,进行标本采集和鱼类区系现状调查。查看了采自泸沽湖的鱼类标本518号,结... 泸沽湖是位于滇西北的一个断陷湖泊,为滇川两省共有。文献记录泸沽湖原始的鱼类区系由4种鱼类组成,隶属于裂腹鱼属和泥鳅属。于2001 ,2002和2004年3次考察泸沽湖,进行标本采集和鱼类区系现状调查。查看了采自泸沽湖的鱼类标本518号,结合历史上的采集记录和大量相关文献,确定泸沽湖记录有鱼类12种,隶属于3目4科10属;过度捕捞和毁林造成的泥石流是泸沽湖鱼类区系变化的主要原因。 展开更多
关键词 鱼类区系 泸沽湖 云南高原
下载PDF
西沙群岛重要珊瑚礁海域鱼类区系 被引量:21
12
作者 孙典荣 林昭进 +1 位作者 邱永松 王雪辉 《南方水产》 2005年第5期18-25,共8页
根据1998年5月、1999年5月和2003年5月在西沙群岛北礁、永兴岛、琛航岛、华光礁、浪花礁、金银岛、东岛和玉琢礁等8个岛礁的调查资料,研究了西沙群岛岛礁水域的鱼类区系。在8个岛礁共捕获鱼类48科261种,其中礁栖性鱼类占78.93%,在8个岛... 根据1998年5月、1999年5月和2003年5月在西沙群岛北礁、永兴岛、琛航岛、华光礁、浪花礁、金银岛、东岛和玉琢礁等8个岛礁的调查资料,研究了西沙群岛岛礁水域的鱼类区系。在8个岛礁共捕获鱼类48科261种,其中礁栖性鱼类占78.93%,在8个岛礁广泛分布的鱼类只有33种,各礁区之间种类的相似度不超过41%,因此,种类多样性高和相似度低是该区域鱼类区系的2个主要特征。与南沙岛礁(1998~1999)延绳钓、刺网和手钓以及南沙群岛西南陆架区(1991)、南海北部海域等底拖网鱼类相比较,物种相似度分别为34.0%、5.1%和6.8%。 展开更多
关键词 鱼类区系 物种相似度 珊瑚礁 西沙群岛
下载PDF
长江中下游四个湖泊鱼类与渔业研究 被引量:24
13
作者 张堂林 李钟杰 郭青松 《水生生物学报》 CAS CSCD 北大核心 2008年第2期167-177,共11页
选择长江中下游的牛山湖、东汤逊湖、龙感湖和黄湖作为研究地点,调查了这些湖泊鱼类区系组成、鱼种放养量、渔获物组成、渔产量和渔产值,现已查明牛山湖鱼类有64种,东汤逊湖53种,黄湖76种,龙感湖80种。这些湖泊的鱼类区系组成相似,鲤科... 选择长江中下游的牛山湖、东汤逊湖、龙感湖和黄湖作为研究地点,调查了这些湖泊鱼类区系组成、鱼种放养量、渔获物组成、渔产量和渔产值,现已查明牛山湖鱼类有64种,东汤逊湖53种,黄湖76种,龙感湖80种。这些湖泊的鱼类区系组成相似,鲤科鱼类最多,占总种数的60.4%-65.6%。牛山湖主要放养草鱼,东汤逊湖主要放养鲢和鳙,黄湖除鱼类外重点放养河蟹。这三个湖泊年均鱼种放养量分别为9.5kg/hm2、36.8kg/hm2、8.1kg/hm2;年均鱼产量分别为128kg/hm2、126kg/hm2、88kg/hm2;年均每公顷渔产值分别为623元、680元、1202元。龙感湖为非放养型湖泊,年均鱼产量为64kg/hm2,其中鲫、红鳍原泊和小杂鱼占有较高的比例;年均每公顷渔产值183元。文中分析了各湖泊鱼产量构成特征,讨论了未来湖泊渔业可持续发展的对策,为合理利用鱼类资源,发展可持续渔业提供重要依据。 展开更多
关键词 鱼类区系 鱼类资源 可持续渔业 牛山湖 东汤逊湖 黄湖 龙感湖
下载PDF
清水江的鱼类区系及生态类型 被引量:25
14
作者 代应贵 陈毅峰 《生态学杂志》 CAS CSCD 北大核心 2007年第5期682-687,共6页
为了系统研究清水江的鱼类区系和生态类型,在2002—2004年对清水江进行了鱼类标本的采集和生态学调查。共采集鱼类标本2500余号,经鉴定为71种(亚种)。其中中华花鳅、拟尖头鲌、长身鳜和长吻鮠等52种(亚种)鱼类为清水江鱼类新记录,而红... 为了系统研究清水江的鱼类区系和生态类型,在2002—2004年对清水江进行了鱼类标本的采集和生态学调查。共采集鱼类标本2500余号,经鉴定为71种(亚种)。其中中华花鳅、拟尖头鲌、长身鳜和长吻鮠等52种(亚种)鱼类为清水江鱼类新记录,而红尾副鳅、长薄鳅、海南拟、福建纹胸鮡和长须黄颡鱼则首次被发现分布于沅江水系。结合文献记录与调查表明:清水江共有鱼类4目13科57属86种(亚种),其中仅胡子鲇为外来种;清水江鱼类区系具有土著鱼类占优势、特有种类和易(濒)危种类较多、区系组成较复杂和与珠江水系之间存在着鱼类跨水系分布的现象等特点。清水江鱼类在洄游、食性、繁殖和栖息习性等方面分别属于不同的生态类型。 展开更多
关键词 清水江 鱼类 区系 生态类型
下载PDF
雅鲁藏布江中上游鱼类区系和资源状况初步调查 被引量:27
15
作者 杨汉运 黄道明 《华中师范大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第4期629-633,共5页
根据2006年~2007年4次调查结果,雅鲁藏布江中上游共分布25种鱼类.其中土著鱼类16种,由裂腹鱼亚科、条鳅亚科及鮡科3个类群组成,属典型的高原鱼类区系.高原裸鲤、兰格湖裸鲤和黄斑褶鮡为雅鲁藏布江中上游干支流新纪录种.渔获物主要是由... 根据2006年~2007年4次调查结果,雅鲁藏布江中上游共分布25种鱼类.其中土著鱼类16种,由裂腹鱼亚科、条鳅亚科及鮡科3个类群组成,属典型的高原鱼类区系.高原裸鲤、兰格湖裸鲤和黄斑褶鮡为雅鲁藏布江中上游干支流新纪录种.渔获物主要是由拉萨裸裂尻鱼、双须叶须鱼、异齿裂腹鱼、拉萨裂腹鱼、巨须裂腹鱼等组成,构成鱼类产量的90%以上.上游鱼类资源保存相对完好,中游资源面临过度捕捞、资源量下降、个体小型化、外来物种入侵及栖息生境恶化等生态问题,有可能导致雅鲁藏布江中上游特有高原经济鱼类种质资源库功能的丧失,应引起高度的重视和保护. 展开更多
关键词 雅鲁藏布江 鱼类区系 鱼类资源
下载PDF
不同盐碱度水体的鱼类区系结构及主要经济鱼类生长的比较 被引量:20
16
作者 黎道丰 蔡庆华 《水生生物学报》 CAS CSCD 北大核心 2000年第5期493-501,共9页
通过对内陆15个盐碱度不同的典型水体中鱼类区系结构和主要经济鱼类生长的比较和分析,阐述了盐碱度对鱼类区系和鱼类生长的影响。比较和分析结果表明,鱼类的区系结构、种类数量和生长速度与水体盐碱度的高低有着密切关系,盐碱度高... 通过对内陆15个盐碱度不同的典型水体中鱼类区系结构和主要经济鱼类生长的比较和分析,阐述了盐碱度对鱼类区系和鱼类生长的影响。比较和分析结果表明,鱼类的区系结构、种类数量和生长速度与水体盐碱度的高低有着密切关系,盐碱度高的水体其鱼类的生长速度较慢。将水体的pH值、盐度、碱度、硬度、电导率等几项盐碱指标与鱼类的种类数量进行逐步回归和相关分析,结果显示水体中鱼类现有的种类数量与盐碱指标的关系式为:LOG(现有种类数)=4. 0929- 0.2866LOG(碱度)- 0.1857LOG(硬度),(R2= 0. 7520,F=18.1967,p=0.0002);土著的种类数量与盐碱指标的关系式为:LOC(土著种类数)=3.3832-0.3509LOG(盐度)-0.44587LOG(碱度),(R2=0.7116,F=14.8058),p=0.0006)。 展开更多
关键词 盐碱度 水体 鱼类区系 内陆地区 鱼类生长
下载PDF
大亚湾春秋季鱼类种类组成及年龄结构分析 被引量:6
17
作者 金亮 徐华林 +3 位作者 张志敏 杨锡凯 王英永 卢昌义 《台湾海峡》 CAS CSCD 北大核心 2011年第1期71-80,共10页
2006年4月和9月对大亚湾海域通过拖网和流刺网捕获的鱼类进行初步调查.结果表明,渔获物中出现18目76科135属200种鱼类,其中软骨鱼纲4目5科5属6种,占调查鱼类总种数的3.0%;硬骨鱼纲14目71科130属194种,占调查鱼类总种数的97.0%.根据其适... 2006年4月和9月对大亚湾海域通过拖网和流刺网捕获的鱼类进行初步调查.结果表明,渔获物中出现18目76科135属200种鱼类,其中软骨鱼纲4目5科5属6种,占调查鱼类总种数的3.0%;硬骨鱼纲14目71科130属194种,占调查鱼类总种数的97.0%.根据其适温类型可分为暖水性种、暖温性种和冷温性种,其中暖水性鱼类有183种,占总种数的91.5%;暖温性鱼类有16种,占总种数的8.0%;冷温性鱼类仅有1种,占总种数的0.5%.渔获物中底层和近底层鱼类占多数,其中,底层鱼类共有74种,占总种数的37.0%;近底层鱼类共有68种,占总种数的34.0%;中上层鱼类共有45种,占总种数的22.5%;岩礁鱼类有13种,占总种数的6.5%.大亚湾鱼类的年龄普遍偏低,以1 a龄鱼为主.与相邻海区鱼类区系特征比较,大亚湾海域具有我国热带和亚热带性海湾的鱼类区系特征. 展开更多
关键词 海洋生物学 大亚湾 拖网 流刺网 鱼类区系 种类组成
下载PDF
南岭南部北江源地鱼类区系及东洋区北侧界的划分 被引量:6
18
作者 徐剑 邹佩贞 +1 位作者 温彩燕 陈建荣 《南昌大学学报(理科版)》 CAS 北大核心 2002年第2期143-146,共4页
在浈水上游北江源地亚历河采集到鱼类 4 0种和亚种 ,分隶于 5目 13科 31属。以骨鳔类为主 ,其中鲤形目种类占 6 7.5 % ,鲤科占鲤形目的 70 .4 9% ,既有老第三纪原始类群的后裔种类 ,又有南亚暖水性鱼类。东陂拟腹吸鳅 ,侧条光唇鱼 ,宽... 在浈水上游北江源地亚历河采集到鱼类 4 0种和亚种 ,分隶于 5目 13科 31属。以骨鳔类为主 ,其中鲤形目种类占 6 7.5 % ,鲤科占鲤形目的 70 .4 9% ,既有老第三纪原始类群的后裔种类 ,又有南亚暖水性鱼类。东陂拟腹吸鳅 ,侧条光唇鱼 ,宽鳍鱼鼠等适应山溪急流生活的生态类群占明显优势 ,亚历河的鱼类区系东洋区的特征比较明显 ;根据鱼巴亚科占鲤科类 31.5 8% ,以及东洋区鱼类占全部种类的 36 .2 4 % ,而鳊、鲴、鱼句、鲢、雅罗鱼五亚科种类仅占2 6 .33%等特征 ,认为将南岭作为全北区与东洋区的分界线更符合客观事实。鱼类数量呈明显下降趋势 ,人工繁育开发新水产品种是重要的保护措施之一。 展开更多
关键词 南岭南部 北江源地 鱼类区系 北侧界 全北区 东洋区 分界线 区系组成 鱼类资源
下载PDF
丽江拉市海保护区的鱼类区系和现存状态 被引量:4
19
作者 陈小勇 杨君兴 +1 位作者 陈自明 孔德平 《Zoological Research》 CAS CSCD 北大核心 2003年第2期144-147,共4页
20 0 1年 8、 10月和 1999年 10月在云南丽江拉市海高原湿地自然保护区采得鱼类标本 4 5 5 0号。结合文献记录 ,并用参与式农村评估 (PRA)与渔民讨论 ,评估各鱼种的生存状态。初步确定该保护区共有鱼类2 5种 ,隶属 5目 10科 2 1属。其中... 20 0 1年 8、 10月和 1999年 10月在云南丽江拉市海高原湿地自然保护区采得鱼类标本 4 5 5 0号。结合文献记录 ,并用参与式农村评估 (PRA)与渔民讨论 ,评估各鱼种的生存状态。初步确定该保护区共有鱼类2 5种 ,隶属 5目 10科 2 1属。其中有 7个土著种 ,18个引入种 ,高度濒危或灭绝 3种。首次记录到秀丽高原鳅。该地鱼类区系主要由引入种组成 。 展开更多
关键词 鱼类区系 高原湿地 土著种 引入种 灭绝 拉市海
下载PDF
赣东北地区鱼类区系特征及我国东部地区动物地理区划 被引量:17
20
作者 张鹗 陈宜瑜 《水生生物学报》 CAS CSCD 北大核心 1997年第3期251-261,共11页
本文依据赣东北鱼类区系的特征,结合古地史资料,从历史时空的角度分析其区系的形成和演化;进而对我国东部地区淡水鱼类动物地理区划进行了讨论并指出:赣东北以及整个长江中下游地区应隶属于东洋区;南岭──武夷山──天台山──仙... 本文依据赣东北鱼类区系的特征,结合古地史资料,从历史时空的角度分析其区系的形成和演化;进而对我国东部地区淡水鱼类动物地理区划进行了讨论并指出:赣东北以及整个长江中下游地区应隶属于东洋区;南岭──武夷山──天台山──仙霞岭可构成东洋区南东亚亚区内次一级地理区划的分界线,即华东小区和华南小区的分界线;洞庭湖水系、鄱阳湖水系和钱塘江水系应享有相同的区划级别,同处于东洋区南东亚亚区华东小区内。 展开更多
关键词 鱼纲 赣东北地区 区系特征 动物地理区划
下载PDF
上一页 1 2 10 下一页 到第
使用帮助 返回顶部