Length‐weight relationships of seven fish species from the Wutong River, northeast China. (20th April 2018)

• Record Type: Journal Article
• Authors: Li, L.; Wang, N.; Jin, H.; Zhang, J.; Ma, B.
• Is Part Of: Journal of applied ichthyology. Volume 34:Number 4(2018:Aug.)
• Page Start: 1055
• Page End: 1056
• Publication Date: 2018-04-20
• Subjects: Fishes -- Periodicals; Fish culture -- Periodicals; Fisheries -- Periodicals; Ichthyology -- Periodicals; 597
• DOI: 10.1111/jai.13702
• Languages: English
• ISSNs: 0175-8659

Abstract

Summary: Length‐weight relationships (LWR) were calculated for seven fish species from the Wutong River, northeast China(47°58'‐47°10'N; 130°07'‐130°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, 12 V) and gillnets (mesh size: 1.1 cm × 1.1 cm, 1.4 cm × 1.4 cm, 1.8 cm × 1.8 cm, 2.5 cm × 2.5 cm) 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 ( ladislavia taczanowskii ). 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 .