摘要
2022年9月11—22日对四川省南充市顺庆区芦溪河口鱼类资源开展调查,根据芦溪河口水系分布特点进行采样。共收集鱼类标本35种,隶属于3目6科28属。鱼类种类组成较为丰富,其中鲤形目种类最多,占总种数的77.14%,其次是鲈形目,占总种数的14.29%。依据水层分布、营养结构、栖息环境和产卵类型指标,将芦溪河口鱼类划分为14种不同的生态类型,调查结果显示:底栖(40.00%)、肉食性(45.71%)、黏性卵(42.86%)鱼类为占主要组成部分。根据生物多样性指数分析可知,顺庆区芦溪河口鱼类Shannon-Wiener多样性指数为2.71,Pielou均匀度指数为0.76,Margalef丰富度指数为5.60,相较于嘉陵江干流部分,种群结构相对简单,生态系统稳定性较脆弱。
From September 11 to September 22,2022,fish resource in the Luxi estuary of Shunqing District,Nanchong City,Sichuan Province were surveyed,and samples were taken according to the distribution characteristics of the Luxi estuary.A total of 35 fish specimens belonging to 3 orders,6 families and 28 genera were collected in this survey.Fish species were abundant,among which Cypriniformes accounted for 77.14%of the total,followed by Perciformes,accounting for 14.29%of the total.Based on the indices of water layer distribution,trophic structure,habitat and spawning types,fish species in the estuary of Luxi Estuary were divided into 14 ecological types.The results showed that benthic(40.00%),carnivorous(42.86%)and viscous egg(42.86%)fish were the main components.Based on biodiversity index analysis,Shannon-Wiener diversity index,Pielou evenness index and Margalef richness index of fish in the Luxi estuary of Shunqing District were 2.71,0.76 and 5.60,respectively.Compared with the main stream of Jialing River,the population structure was relatively simple and the ecosystem stability was fragile.
作者
郑羽晨
黄劼
李天辉
龚建涵
曾燏
ZHENG Yu-chen;HUANG Jie;LI Tian-hui(College of Life Science,West China Normal University,Nanchong,Sichuan 637000;Sichuan Fisheries School,Chengdu,Sichuan 611730;Nanchong Shunqing District Agriculture and Rural Bureau Fisheries Station,Nanchong,Sichuan 637000)
出处
《安徽农业科学》
CAS
2023年第11期62-64,103,共4页
Journal of Anhui Agricultural Sciences
基金
四川省科技厅重点项目“高原冷水鱼类产卵场的保护与恢复关键技术研究:以黄河源区刺鮈为例”(2022NSFSC0129,2022-2023)。
