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Hydroacoustic study of spatial and temporal distribution of Gymnocypris przewalskii (Kessler, 1876) in Qinghai Lake, China
Chen, D.1,2; Zhang, X.1,3; Tan, X.4; Wang, K.1,2; Qiao, Y.5; Chang, Y.1; Chen, D, Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Fish Germplasm Resources & Bio, Jinzhou, Peoples R China
2009
Source PublicationENVIRONMENTAL BIOLOGY OF FISHES
ISSN0378-1909
Volume84Issue:2Pages:231-239
AbstractGymnocypris przewalskii (Kessler 1876) is an endangered and state-protected rare fish species in Qinghai Lake, China. To further understand the life history and distribution of this fish, five surveys were carried out in Qinghai Lake between 2002-2006. Results of these surveys indicate that fishes were predominantly distributed about 2 m under the surface. In July, significant differences in fish density were found between surface and bottom layers (P = 0.001), and/or between middle and bottom layers (P = 0.025). Fish density was the greatest in the surface layer. In August and October, no significant differences were found between the different layers, but the bottom layer had a greater fish density. Furthermore, there were very large differences among different zones in fish distribution density. Differences in horizontal distribution were not significantly correlated to factors such as water depth and inshore distance, possibly because of very low and uniform fish density. Feeding, changes in water temperature, over-wintering and spawning appeared to influence fish distribution. Hydroacoustic estimates of G. przewalskii biomass in Qinghai Lake increased significantly between 2002 and 2006. We attribute this increase to the management measures put in place to protect this species.; Gymnocypris przewalskii (Kessler 1876) is an endangered and state-protected rare fish species in Qinghai Lake, China. To further understand the life history and distribution of this fish, five surveys were carried out in Qinghai Lake between 2002-2006. Results of these surveys indicate that fishes were predominantly distributed about 2 m under the surface. In July, significant differences in fish density were found between surface and bottom layers (P = 0.001), and/or between middle and bottom layers (P = 0.025). Fish density was the greatest in the surface layer. In August and October, no significant differences were found between the different layers, but the bottom layer had a greater fish density. Furthermore, there were very large differences among different zones in fish distribution density. Differences in horizontal distribution were not significantly correlated to factors such as water depth and inshore distance, possibly because of very low and uniform fish density. Feeding, changes in water temperature, over-wintering and spawning appeared to influence fish distribution. Hydroacoustic estimates of G. przewalskii biomass in Qinghai Lake increased significantly between 2002 and 2006. We attribute this increase to the management measures put in place to protect this species.
SubtypeArticle
KeywordGymnocypris Przewalskii Hydroacoustic Study Spatial And Temporal Distribution Qinghai Lake
Department[Chen, D.; Zhang, X.; Wang, K.; Chang, Y.] Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Fish Germplasm Resources & Bio, Jinzhou, Peoples R China; [Chen, D.; Wang, K.] Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi, Peoples R China; [Zhang, X.] Huazhong Agr Univ, Coll Fisheries, Wuhan, Peoples R China; [Tan, X.] Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou, Guangdong, Peoples R China; [Qiao, Y.] Chinese Acad Sci, State key Lab Freshwater Fish Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China
Subject AreaEcology ; Marine & Freshwater Biology
DOI10.1007/s10641-008-9430-y
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Marine & Freshwater Biology
WOS IDWOS:000263010400015
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7882
Collection期刊论文
Corresponding AuthorChen, D, Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Fish Germplasm Resources & Bio, Jinzhou, Peoples R China
Affiliation1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Fish Germplasm Resources & Bio, Jinzhou, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi, Peoples R China
3.Huazhong Agr Univ, Coll Fisheries, Wuhan, Peoples R China
4.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou, Guangdong, Peoples R China
5.Chinese Acad Sci, State key Lab Freshwater Fish Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China
Recommended Citation
GB/T 7714
Chen, D.,Zhang, X.,Tan, X.,et al. Hydroacoustic study of spatial and temporal distribution of Gymnocypris przewalskii (Kessler, 1876) in Qinghai Lake, China[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2009,84(2):231-239.
APA Chen, D..,Zhang, X..,Tan, X..,Wang, K..,Qiao, Y..,...&Chen, D, Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Fish Germplasm Resources & Bio, Jinzhou, Peoples R China.(2009).Hydroacoustic study of spatial and temporal distribution of Gymnocypris przewalskii (Kessler, 1876) in Qinghai Lake, China.ENVIRONMENTAL BIOLOGY OF FISHES,84(2),231-239.
MLA Chen, D.,et al."Hydroacoustic study of spatial and temporal distribution of Gymnocypris przewalskii (Kessler, 1876) in Qinghai Lake, China".ENVIRONMENTAL BIOLOGY OF FISHES 84.2(2009):231-239.
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