长江流域资源与环境 >> 2006, Vol. 15 >> Issue (4): 434-441.

• 自然资源 • 上一篇    下一篇

西洞庭湖鱼类物种多样性及其时空变化

胡军华1,2,胡慧建2,何木盈3,彭平波3,杨道德1   

  • 收稿日期:2005-08-26 修回日期:2005-12-28 出版日期:2006-07-20
  • 通讯作者: 胡慧建

FISH SPECIES DIVERSITY AND ITS SPATIOTEMPORAL VARIATION IN WEST DONGTING LAKE

HU Jun-hua1,2,HU Hui-jian2,HE Mu-ying3,PENG Ping-bo3,YANG Dao-de1   

  • Received:2005-08-26 Revised:2005-12-28 Online:2006-07-20
  • Contact: HU Hui-jian

摘要: 洞庭湖是长江中游现存仅有的两大通江湖泊之一,研究其鱼类资源对了解湖泊通江的生态作用有着重要意义。为此,在2002年9月~2004年6月每月定期定点在西洞庭湖区开展鱼类调查,结果如下:① 实地调查到鱼类111种,隶属9目20科,包括中华鲟、胭脂鱼等珍稀物种;②鱼类物种数年动态波动较大,最高月份达69种,最低为26种,月均50±13种;③物种多样性指数年动态与物种数年动态大体一致,最高达3.34,最低为1.89,月均2.84±0.38;④空间分布上,位于入湖口的调查点物种数和多样性指数高于内湖,且差异有显著性(p<0.05);⑤在数量上,湖泊定居型鱼类占50%以上,其中,鲫数量最多,占16%左右。可见:西洞庭湖作为通江湖泊在鱼类多样性的保护上起到避难所和交流场所的作用;目前,西洞庭湖鱼类在生态组成上,湖泊定居型鱼类比重有逐渐增加的趋势。

关键词: 西洞庭湖, 鱼类多样性, 时空变化, 通江湖泊

Abstract: As Dongting Lake is one of the two biggest lakes still linked with the Yangtze River, its fish resource study becomes important and valuable for the evaluation of lakes in the river basin. Therefore, a monthly survey of fish resource was carried out from September 2002 to June 2004. 111 species belonging to 9 orders and 21 families were recorded, including some cherish and rare species, e.g. Acipenser sinensis Gray, and Myxocyprinus asiaticus. The number of fish species varied within the year, with the highest number 69 species, the lowest 26. The dynamics of diversity index matched well with the number of species, with its fluctuation being relatively even at an average of 2.84±0.38. The number of species and then diversity in connecting areas with water flowing into lakes were higher than those in opening water areas of the lake. The limnicolous fishes accounted for over 50% of individual fishes, among which the common carp Carassius auratus auratus was the most abundant, accounting for 16%. In conclusion, as a linking lake, west Dongting Lake acts as shelter and intercourse grounds for fishes and is a place for the protection and restoration of fish diversity in the lake and also in the Yangtze River. The fact that the percentage of limnicolous fishes increased over recent years at west Dongting Lake should be considered in any project in order to protect the natural fish resource in the lake and also in the river.

Key words: West Dongting Lake, fish diversity, spatiotemporal variation, linking lakes

[1] 顾铮鸣, 金晓斌, 沈春竹, 金志丰, 周寅康. 近15a江苏省水源涵养功能时空变化与影响因素探析[J]. 长江流域资源与环境, 2018, 27(11): 2453-2462.
[2] 刘金科, 韩贵琳, 阳昆桦, 柳满. 九龙江流域河水溶解态碳的时空变化[J]. 长江流域资源与环境, 2018, 27(11): 2578-2587.
[3] 王水霞, 殷淑燕, 赵芮芮, 周亚利. 秦岭南部地区农业气候资源的变化及其对油菜的影响[J]. 长江流域资源与环境, 2017, 26(06): 882-893.
[4] 刘俸霞, 王艳君, 赵晶, 陈雪, 姜彤. 全球升温1.5℃与2.0℃情景下长江中下游地区极端降水的变化特征[J]. 长江流域资源与环境, 2017, 26(05): 778-788.
[5] 刘静, 殷淑燕. 1960~2014年秦岭南北无霜期时空变化特征及对比分析[J]. 长江流域资源与环境, 2017, 26(04): 615-623.
[6] 卢燕宇, 王胜, 田红, 邓汗青, 何冬燕. 近50年安徽省气候生产潜力演变及粮食安全气候承载力评估[J]. 长江流域资源与环境, 2017, 26(03): 428-435.
[7] 杨超杰, 贺斌, 段伟利, 李冰, 陈雯, 杨桂山. 太湖典型丘陵水源地水质时空变化及影响因素分析——以平桥河流域为例[J]. 长江流域资源与环境, 2017, 26(02): 273-281.
[8] 赵登忠, 肖潇, 汪朝辉, 谭德宝, 陈永柏. 水布垭水库水体碳时空变化特征及其影响因素分析[J]. 长江流域资源与环境, 2017, 26(02): 304-313.
[9] 戴雪, 何征, 万荣荣, 杨桂山. 近35 a长江中游大型通江湖泊季节性水情变化规律研究[J]. 长江流域资源与环境, 2017, 26(01): 118-125.
[10] 易凤佳, 李仁东, 常变蓉, 施媛媛, 邱娟. 2000~2010年汉江流域湿地动态变化及其空间趋向性[J]. 长江流域资源与环境, 2016, 25(09): 1412-1420.
[11] 何华春, 周汝佳. 基于景观格局的盐城海岸带土地利用时空变化分析[J]. 长江流域资源与环境, 2016, 25(08): 1191-1199.
[12] 李军, 王兆礼, 黄泽勤, 钟睿达, 卓圣峰, 陈希贤. 基于SPEI的西南农业区气象干旱时空演变特征[J]. 长江流域资源与环境, 2016, 25(07): 1142-1149.
[13] 李琪, 苏欢, 史雨涵, 王连喜, 吴东丽. 1961~2010年江浙沪地区夏季高温热浪时空变化特征[J]. 长江流域资源与环境, 2016, 25(03): 506-513.
[14] 王婷, 章新平, 黎祖贤, 罗紫东, 廖梦思, 刘娜. 近52年来洞庭湖流域气象干旱的时空分布特征[J]. 长江流域资源与环境, 2016, 25(03): 514-522.
[15] 赵筱青, 顾泽贤, 高翔宇. 人工园林大面积种植区土地利用/覆被变化对生态系统服务价值影响[J]. 长江流域资源与环境, 2016, 25(01): 88-97.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!