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保安湖沉水植被恢复及其渔业效益
引用本文:金刚,李钟杰,刘伙泉,温周瑞,陈洪达.保安湖沉水植被恢复及其渔业效益[J].湖泊科学,1999,11(3):260-266.
作者姓名:金刚  李钟杰  刘伙泉  温周瑞  陈洪达
作者单位:中国科学院水生生物研究所!武汉430072(金刚,李钟杰,刘伙泉),湖北省水产研究所!武汉430071(温周瑞,陈洪达)
基金项目:农业部“八五”攻关课题!(85-14-01-01),“九五”攻关课题!(95-008-02-03),中国科学院重大课题!(KZ
摘    要:通过消除对沉水植物生长有破坏作用的草食性鱼类和杂食性鱼类,在低水位的早春选择无风浪的天气移栽水草,于199年保安湖一个面积为3.3hm^2网栏湖汊成功地恢复了绝迹8个月的水草群落,秋季水草覆盖盖达50%,同时研究了在无鱼类摄食破坏的条件下苦草和黄丝草的生长动态。

关 键 词:保安湖  沉水植物群落  渔业  经济效益  水草群落
收稿时间:1998/2/16 0:00:00
修稿时间:1998/6/20 0:00:00

Recovery of Submerged Vegetation and Its Fishery Benefit in Bao'an Lake
JIN Gang,LI Zhong-jie,LIU Huo-quan,WEN Zhou-rui and CHEN Hong-da.Recovery of Submerged Vegetation and Its Fishery Benefit in Bao''an Lake[J].Journal of Lake Science,1999,11(3):260-266.
Authors:JIN Gang  LI Zhong-jie  LIU Huo-quan  WEN Zhou-rui and CHEN Hong-da
Institution:Institute of Hydrobiology, Chinese Aeademy of Sciences, Wuhan 430072,Institute of Hydrobiology, Chinese Aeademy of Sciences, Wuhan 430072,Institute of Hydrobiology, Chinese Aeademy of Sciences, Wuhan 430072,Hubei Fisheries Sciences Research Institute, Wuhan 430071 and Hubei Fisheries Sciences Research Institute, Wuhan 430071
Abstract:The recovery of submerged macrophyte community is very important to the purification of water quality and the restoration of beautiful landscape, and also to the sustentation of the lake fishery with high quality and high economic benefit because the fishery species with high marketprice, such as Chinese mitten crab Eriocheir sinensis H. Mime-Edwards and mandarin fish Sini- perca chuatsi (Basilewsky) , do not grow well without the densely submerged macrophyte com- munity. By catching the herbivorous fishes (grass carp Ctenopharyngodon idellus, Megalobrama amblycephala Yih, Cyprinidae) and the omnivorous fishes (common carp Cyprinus carpio L., crucian carp Chrassius auratus L. ) which are harmful to the submerged macrophyte growth, and transplanting the aquatic plants (Vallisneria natans, Potamogeton macckianus, Myriophyllum spicatum, Ceratophyllum demersum) on the calm days in early spring when the water depth was 0.1 - 1. 0 m, the submerged macrophyte community was recovered in Xiao-si-hai Lake (area is 133. 3 hm~2 ) near to the middle reach of Yangtze River, China in 1995. Because of the recovery of submerged macrophyte community, the traditional fishery type which applying fertilizer to culture the plankton feeder (silver carp Hypophthalmichthys molitrix and bighead Aristichthys nobilis ) with low market price was given up, and began with a new fishery by stocking the crab and the mandarin fish to gain a great benefit in Xiaosihai Lake. The biomass, cover rate of submerged macrophyte is 2730gm~(-2), 100 %, respectively, in autumn in 1997, and the crab production is 4739. 5kg in 1997.
Keywords:Bao' an Lake  submerged macrophyte community  recovery  fishery
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