Spatial and temporal distribution of Gymnocypris przewalskii larvae in the Buha River of the Qinghai Lake
ZHANG Hong1, TAN Xi-chang2, SHI Jian-quan1, YANG Jian-xin1, QI Hong-fang1, LI Xin-hui2
1. Qinhai naked carp rescue center, Xining, 810016, China; 2. Pearl River Fishery Research Institute, Chinese Academic of Fishery Science, Guangzhou 510380, China
Spatial and temporal distribution of fish larvae in the Buha River, Qinhai Lake was investigated from 1 July to 6 October, 2008 by sampling with hydrographic cableways and conical nets.The results showed that almost all fish larvae were Gymnocypris przewalskii.Fish fry mainly appeared in July, with the average density of 3.17 ind.·m3, and max density of 54 ind.·m3.There were significant differences in the density between the day from 14:00 to 14:10 and the night from 22:00 to 22:10(a=0.05, F=6.13, P=0.014).Fish larvae mainly drifted in the night, and fish fry mostly distributed near the surface and the density of fish fry near shore was higher than the density in river center, while fish eggs mostly distributed near the bottom of river.The density of fish eggs was significantly different, with 0.075 ind.·m3 in the surface, while 0.175 ind.·m-3 in the bottom(n=ll, F=4.73385, P=0.04174).Sectional coefficient offish fry and fish eggs was 0.43 and 2.32 respectively.It is very important to understand the characteristics of spatial and temporal distribution of Gymnocypris przewalskii for larval resource investigation and protection.
张宏1, 谭细畅2*, 史建全1, 杨建新1, 祁洪芳1, 李新辉2. 布哈河青海湖裸鲤鱼苗鱼卵的时空分布研究[J]. , 2009, 28(5): 443-447.
ZHANG Hong1, TAN Xi-chang2, SHI Jian-quan1, YANG Jian-xin1, QI Hong-fang1, LI Xin-hui2. Spatial and temporal distribution of Gymnocypris przewalskii larvae in the Buha River of the Qinghai Lake. , 2009, 28(5): 443-447.
[1] 史建全, 祁洪芳, 杨建新, 等.2000.青海湖裸鲤资源评析[J].淡水渔业, 30(11):38-40.
[2] 武飞云, 吴翠珍.1991.青藏高原鱼类[M].成都:四川科学技术出版社, 441-443.
[3] 王基琳.2005.青海湖裸鲤Gymnocypris przewalskii (Kessler)产卵场破坏[J].现代渔业信息, 20(6):11-12.
[4] Tanaka S.1976.鱼卵和仔鱼调查在鱼类群体数量变动研究中的重要意义[A].J.H.s Blaxter主编(唐小曼等译), The early life history of fish[C].北京:农业出版社, 66-69.
[5] 蒋玫, 沈新强, 王云龙, 等.2006.长江口及邻近水域夏季鱼卵、仔鱼数量分布特征[J].海洋科学, 30(6):92-97.
[6] 胡安, 唐诗声, 龚生兴.1975.青海湖裸鲤[Gymnocypris przewalskii prezewalskii(Kessler)繁殖生物学的研究[A].青海省生物研究所.青海湖地区的鱼类区系和青海湖裸鲤的生物学[C].北京:科学出版社, 49-64.
[7] 张宏, 赵秀梅, 俞录贤.2008.青海湖裸鲤工厂化人工育苗技术[J].中国水产, (11):50-51.
[8] 祁洪芳, 史建全.2009.青海湖裸鲤的人工繁殖及苗种的淡水培育技术[J].水产科技情报, 36(3):149-151.
[9] 易伯鲁, 梁秩燊, 余志堂, 等.1988.葛洲坝水利枢纽与长江四大家鱼[M].武汉:湖北科技出版社, 32-35.
[10] Gadomski D M, Barfoot C A.1998.Diel and distribufional abundance patterns of fish embryos and larvae in the lower Columbia and Deschutes rivers[J].Environmental Biology of Fishes, 51(4):353-368.
[11] Zitek A, Schmutz S, Ploner A.2004.Fish drift in a Danube sidearm-system:Ⅱ.Seasonal and diurnal patterns[J].Journal of fish biology, 65(5):1339-1357.
[12] Reichard M, Jurajda P, Ondrackova M.2002.Inter-annual variability in seasonal dynamics and species composition of drifting young-of-the-year fishes in two European lowland rivers[J].Journal of Fish Biology, 60(1):87-101.
[13] Muth, R.T.& Schmulbach, J.C.1984.Downstream transport of fish larvae in a shallow prairie river[J].Transactions of the American Fisheries Society, 113, 224-230.
[14] Graaf G J de, Born A F, Uddin A M K, et al.1999.Larval fish movement in the River Lohajiang, Tangail, Bangladesh[J].Fisheries Management and Ecology, 6:109-120.
[15] 谭细畅, 李新辉, 陶江平, 等.2007.西江肇庆江段鱼类早期资源时空分布特征研究[J].淡水渔业, 37(4):37-40.
[16] 余志堂, 周春生, 邓中粦, 等.1985.葛洲坝水利枢纽截流后的长江家鱼产卵场[A].中国鱼类学会编, 鱼类学论文集(第四辑)[C].北京:科学出版社, 1-11.
[17] 刘建康, 王祖熊.1955.江中家鱼苗垂直分布的初步观察[J].水生生物学集刊, 20:71-79.
[18] 常剑波, 邓中膦, 张国华, 等, 1995.洪湖灌江纳苗的可行性及效益评价[A].洪湖水生生物及其资源开发[C].陈宜渝, 许蕴等著.北京:科学出版社, 220-231.
[19] Leslie E, Holland.1986.Distribution of early life history stages of fishes in selected pools of the Upper Mississippi River[J], Hydrobiologia, 13(6):121-130.
[20] 龚生兴, 胡安.1975.青海湖裸鲤[Gymnocypris przewalski prezewalskii(Kessler)精子寿命和胚胎发育的观察青海省生物研究所.青海湖地区的鱼类区系和青海湖裸鲤的生物学.北京:科学出版社, 65-76.
