文献类型: 外文期刊
作者: Li, L. 1 ; Wang, N. 1 ; Jin, H. 1 ; Zhang, J. 1 ; Ma, B. 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Minist Agr China, Heilongjiang Fisheries Res Inst, Sci Observ & Expt Stn Fish Resources & Environm H, Haerbin, Peoples R China
期刊名称:JOURNAL OF APPLIED ICHTHYOLOGY ( 影响因子:0.892; 五年影响因子:0.956 )
ISSN: 0175-8659
年卷期: 2018 年 34 卷 4 期
页码:
收录情况: SCI
摘要: Length-weight relationships (LWR) were calculated for seven fish species from the Wutong River, northeast China(47 degrees 58'-47 degrees 10'N; 130 degrees 07'-130 degrees 48'E), including Ladislavia taczanowskii Dybowski, 1869; Gobio cynocephalus Dybowski, 1869; Rhynchocypris lagowskii (Dybowski, 1869); Lefua costate (Kessler, 1876); Cobitis lutheri Rendahl, 1935; Cobitis sibirica Gladkov, 1935; Perccottus glenii Dybowski, 1877. All fish specimens were collected by electric fishing gear (voltage, 12V) and gillnets (mesh size: 1.1cmx1.1cm, 1.4cmx1.4cm, 1.8cmx1.8cm, 2.5cmx2.5cm) from May to July 2017. The a values ranged from 0.0038 (Cobitis lutheri) to 0.0084 (Lefua costata), and b values from 2.716 (Lefua costata) to 3.450 (Perccottus glenii) and r(2) values from 0.973 (Cobitis lutheri) to 0.995 (ladislaviataczanowskii). This study provides the first published the LWRs for the five species, and new maximum total lengths were recorded for two species, including Gobio cynocephalus and Lefua costata.
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