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引用本文:唐作鹏,解涵,解玉浩,李勃,李兴友,段开明,袁福荣,孙亚权.水丰水库亚洲公鱼和大银鱼种群生态的比较研究.湖泊科学,2002,14(2):152-158. DOI:10.18307/2002.0209
TANG Zuopeng,XIE Han,XIE Yuhao,LI Bo LI Xingyou,DUAN Kaiming,YUAN Furong,SUN Yaquan.Comparative Study on the Population Ecology of Asian Smelt (Hypomesus transpacificus nipponesis)and Large Icefish (Protosalanx hyalocranius)in Shuifeng Reservoir. J. Lake Sci.2002,14(2):152-158. DOI:10.18307/2002.0209
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水丰水库亚洲公鱼和大银鱼种群生态的比较研究
唐作鹏1, 解涵1, 解玉浩1, 李勃1, 李兴友2, 段开明2, 袁福荣2, 孙亚权3
1.辽宁省淡水水产研究所, 辽阳111000;2.辽宁宽甸满族自治县水产技术推广站, 宽甸118200;3.辽宁丹东市海洋与渔业局, 丹东118000
摘要:
1998年 10月至 2000年 11月对水丰水库亚洲公鱼和大银鱼的食性、生长、繁殖、群体结构进行了比较研究.亚洲公鱼为杂食性鱼类但主要以浮游动物为食,繁殖时还摄食同类卵,出现频率达 42.9%,在冬季也摄食大银鱼卵 (2.8%);体长 (L)、体重 (W)呈异速生长 (W=1.176×10-6 L3.5555);群体繁殖速度比 1984年以前提高了 49.2%;群体结构中体长、体重的离散度很小.大银鱼前期主要以浮游动物为食,后期以小鱼小虾为主要食物,也捕食公鱼,出现频率 6.9%-9 6%;体长、体重呈等速生长,W=4.4 82×10-6 L3.0009;群体繁殖速度高出公鱼 1.18倍;群体结构中体长、体重的离散度较大,表现出了个体间的差异性.
关键词:  种群生态  亚洲公鱼  大银鱼  水丰水库
DOI:10.18307/2002.0209
分类号:
基金项目:辽宁省科委重点科研计划(98203001-03)资助项目
Comparative Study on the Population Ecology of Asian Smelt (Hypomesus transpacificus nipponesis)and Large Icefish (Protosalanx hyalocranius)in Shuifeng Reservoir
TANG Zuopeng1, XIE Han1, XIE Yuhao1, LI Bo LI Xingyou1, DUAN Kaiming2, YUAN Furong2, SUN Yaquan2
1.Research Institute for Freshwater Fisheries of Liaoning Province, Liaoyang 111000, P. R. China;2.Station of Spreading Fishery Technology of Kuan Dian County, Liaoning Kuan Dian 118200, P. R. China;3.Oceanic and Fisheries Bureau of Dan Dong City, Liaoning, Dandong, 118000, P. R. China
Abstract:
This paper reports the results of comparative study on the population ecology of asian smelt(Hypomesus transpacificus nipponesis)and large icefish(Protosalanx hyalocranius)in Shuifeng Reservoir from October 1998 to November 2000, which include the behavior of feeding, growth, reprcduction and population structure.The asian smelt is an omnivorous fish which feeds mainly on zooplankton.The eggs of same spcies in spawning period were preyed upon, with a frequency of occurrence of 42.9%.It also fed on eggs of large icefish in winter with a frequency of occurrence of 2.8%.The regression equation of body weight(W)and body length(L)was W=1.176×10-6L3.556.The dispersed degree of body length and body weight in population structure was small.The large icefish feeds mainly on zooplankton in early life and adult fish mainly feeds on small fish and shrimp.The frequency of occurrence of asian smelt in the food was 6.9%-9.6%.The regression equation of body weight and body length was W=4.482×10-6L3.004.The dispersed degree of body length and body weight was large which showing difference of individual growth.
Key words:  Population ecology  asian smelt  large icefish  Shuifeng Reservoir
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