Length-weight relationships of five fishes from the middle Heilongjiang River, China

摘要

Length-weight relationships (LWRs) were estimated for five fish species in the Fuyuan reach of the middle reaches of Heilongjiang River, northeast China. Fishes were captured using a variety of nets (i.e. drift gill net, set net, fishing cage, fishing jig and fishhook). In addition to November-April, samples were collected monthly from May 2013 to October 2014. The five species were: Lethenteronreissneri, Pelteobagrusussuriensis, Hemibarbusmaculates, Xenocyprismacrolepis and Chanodichthyserythropterus. LWRs for Lethenteronreissneri and Pelteobagrusussuriensis were unknown to FishBase. The a values obtained ranged from 0.0019 (Lethenteronreissneri) to 0.0177 (Pelteobagrusussuriensis), and b values rangedfrom2.710 (Pelteobagrusussuriensis) to 3.397 (Chanodichthyserythropterus).