雷井坤 李燕梅 王慧

摘 要：2015-2016年在梵净山及周边地区随机采集大鳞副泥鳅样本529尾，测量其体长、体重、净体重和性腺重等生物学指标，并对体长相对繁殖力、体重相对繁殖力和成熟系数进行计算。研究表明：大鳞副泥鳅繁殖期为4～7月，盛期为5月。个体绝对繁殖力F范围为2 275～34 375粒，平均为13 177粒，体长相对繁殖力为172～2 261粒/cm，平均为728粒/cm；个体相对繁殖力为117～1 474粒，平均为635粒，体重相对繁殖力为107～1 034粒/g，平均为501粒/g。绝对繁殖力主要集中在2 500～3 200粒，体长相对繁殖力主要分布于400～1 200粒/cm，而体重相对繁殖力主要集中在200～700粒/g。

关键词：大鳞副泥鳅；个体绝对繁殖力；体重相对繁殖力；体长相对繁殖力；成熟系数

中图分类号 S966.4 文献标识码 A 文章编号 1007-7731（2016）10-0040-03

Study on Reproductive Biology of Paramisgurnus dabryanus in Fanjing Mountain and the Surrounding Areas

Lei Jingkun et al.

（Key Laboratory of Special Wildlife Resources in Fanjing Mountain，College of Biological and Agroforestry Engineering，Tongren University，Tongren554300，China）

Abstract：We have measured several biological indices for 529 samples of Paramisgurnus dabryanus collected random，like the body length，body weight，net body weight and gonad weight ect. We have counted the individual absolute fecundity by mass method，then calculated the body length relative fecundity，body weight relative fecundity and mature coefficient in Fanjing Mountain and the surrounding areas From March 2015 to March 2016. The results showed that the Paramisgurnus dabryanus population took place from April to July，mainly on May. The individual absolute fecundity was from 2 275 to 34 375 eggs，13 177 eggs on average；the body length spawning of relative fecundity was from 172 to 2 261 eggs per centimeter，728 eggs per centimeter on average；the body weight relative fecundity was from 117 to 1 474 eggs per gram，635 eggs per gram on average；It also indicated us that the absolute fecundity was mainly concentrated from 2 500 to 3 200 eggs，as well as the body length relative fecundity was mainly distributed 400 to 1200 per centimeter while the body weight relative fecundity was mainly concentrated from 200 to 700 eggs per gram.

Key words：Paramisgurnus dabryanus；Individual absolute fecundity；Body length relative fecundity；Body weight relative fecundity；Mature coefficient

繁殖和发育是鱼类整个生活史中的一个重要环节，它和其它各个环节联系起来，保证种群的生存。繁殖与发育不仅是鱼类资源和生物多样性保护研究的基础，而且直接服务于渔业生产实践，对自然水域鱼类资源的增殖和保护，以及开展鱼类人工繁殖和养殖都有重要的意义[1-2]。

大鳞副泥鳅（Paramisgurnus dabryanus）隶属于鳅科（Cobitidae）花鳅亚科（Cobitinae）副泥鳅属（Paramisgurnus Sauvage），在我国长江中下游、福建和台湾均有分布，具有很高的营养价值和医用价值，是我国重要的小型经济鱼类[3]。铜仁市气候温和，雨量充沛，为渔业资源生物的生长、肥育和繁殖提供了优越的场所，尤其为泥鳅的养殖提供较好的条件。目前关于大鳞副泥鳅的繁殖生物学有部分研究，而有关大鳞副泥鳅繁殖生物学还未见系统的报道。本研……