沂南汶河马口鱼国家级水产种质资源保护区鱼类资源现状研究

Research on the Current Status of Fish Resources in the National Aquatic Germplasm Resources Conservation Area for Opsariichthys bidens in Wen River, Yinan County

对沂南汶河马口鱼国家级水产种质资源保护区鱼类资源现状进行了基本调查研究,为保护区种质资源的保护、利用、发展和运作管理提供科学依据,旨在使保护区更加充分的发挥作用。本次共监测到鱼类4目7科32种,甲壳类4种。其中鲤形目18种,占总数的56%;鲇形目3种,占9%;鲈形目6种,占19%;合腮目1种,占3%;甲壳类4种,占13%。本次调查优势种有5种,重要种有14种,常见种有2种,少见种有4种。结果显示,马口鱼群体表现出高单倍型多样性和高核苷酸多样性,群体中中性基因占大多数,群体处于平衡状态,种群结构稳定,遗传多样性总体处于较高水平,野生种质资源处于较好的状态。

The present situation of fish resources in Wenhe National aquatic germplasm resource Reserve of Opsariichthys bidens in Yinan was investigated in order to provide scientific basis for the protection, utilization, development, operation and management of germplasm resources in the reserve, so as to make the reserve play its role more fully. A total of 32 species of fish of 4 orders, 7 families and 4 species of crustaceans were detected. There were 18 species of cypriniformes, accounting for 56% of the total. 3 species of siluroformes, 9%;6 species of perciformes, accounting for 19%;Synbranchiales 1 species, 3%;there were 4 species of crustaceans, accounting for 13%. In this survey, there were 5 dominant species, 14 important species, 2 common species and 4 rare species. The results showed that the population showed high haplotype diversity and high nucleotide diversity, neutral genes accounted for the majority of the population, the population was in a state of balance, the population structure was stable, the genetic diversity was at a high level, and the wild germplasm resources were in a good state.