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[1]刘玥,冯兴无,蒲德永,等.嘉陵江中游7种主要经济鱼类的生长特性及资源量[J].应用与环境生物学报,2021,27(04):837-847.[doi:10.19675/j.cnki.1006-687x.2020.10010]
 LIU Yue,FENG Xingwu,PU Deyong,et al.Characteristics and resource status of main commercial fish in the middle reaches of Jialing River[J].Chinese Journal of Applied & Environmental Biology,2021,27(04):837-847.[doi:10.19675/j.cnki.1006-687x.2020.10010]
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嘉陵江中游7种主要经济鱼类的生长特性及资源量()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
27卷
期数:
2021年04期
页码:
837-847
栏目:
研究论文
出版日期:
2021-08-25

文章信息/Info

Title:
Characteristics and resource status of main commercial fish in the middle reaches of Jialing River
作者:
刘玥冯兴无蒲德永辜浩然田佳佳赵哲黄静朱杰王志坚
1西南大学生命科学学院,淡水鱼类资源与生殖发育教育部重点实验室 重庆 400715 2西南大学水产学院 重庆 400715 3重庆市水产科学研究所 重庆 401120
Author(s):
LIU Yue1 FENG Xingwu2 PU Deyong1 GU Haoran1 TIAN Jiajia1 ZHAO Zhe1 HUANG Jing1 ZHU Jie3? & WANG Zhijian1?
1 Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China 2 College of Fisheries, Southwest University, Chongqing 400715, China 3 Chongqing Fishery Sciences Research Institute, Chongqing 401120, China
关键词:
嘉陵江中游主要经济鱼类种群参数体长股分析渔业资源量
Keywords:
middle reaches of Jialing River main commercial fish population parameter Length based Cohort Analysis (LCA) fishery resource
DOI:
10.19675/j.cnki.1006-687x.2020.10010
摘要:
于2017年7-11月和2018年7-11月在嘉陵江中游开展鱼类资源现状调查,根据渔获物信息确定水域主要经济鱼类种类,运用FiSAT Ⅱ软件分析鲤(Cyprinus carpio)、鲫(Carassius auratus)、黄尾鲴(Xenocypris davidi)、翘嘴鲌(Culter alburnus)、蒙古鲌(Chanodichthys mongolicus)、黄颡鱼(Pseudobagrus fulvidraco)、蛇鮈(Saurogobio dabryi)7种主要经济鱼类的生物学参数和生长特性;通过单位捕捞努力量渔获量(CPUE)[尾/(船×天)]计算每种鱼的年捕捞量,利用FiSAT Ⅱ 软件初步估算其资源量,并以此推算嘉陵江中游鱼类的总资源量. 结果显示,7种鱼的生长指数b在2.86-3.03之间,均为匀速生长;7种鱼的生长系数K皆大于0.2,为快速生长型;生长性能指数φ′在4.40-5.30之间;仅蛇鮈的E值小于Emax,资源利用不足,其余鱼种E值皆大于Emax,资源过度开发;黄颡鱼的拐点年龄ti最大(4.26龄),蛇鮈最小(1.58龄),其余大多在3龄以内;鲤、鲫、黄尾鲴、翘嘴鲌、蒙古鲌、黄颡鱼和蛇鮈的年资源质量依次为3 883 t、9 246 t、2 469 t、1 259 t、862 t、376 t、1 391 t,嘉陵江中游鱼类的年总资源质量为37 400 t. 本研究表明嘉陵江中游主要经济鱼类因遭到过度捕捞而同时存在群落结构和种群结构层面的小型化;结果可为长江禁渔成效评估提供数据参考,为制定嘉陵江中游合理的渔业管理措施、实现渔业的可持续发展提供科学依据. (图7 表4 参51 附表4)
Abstract:
To explore the current situation of fish resources in the middle reaches of Jialing River, fish resource surveys were performed from July to November 2017 and from July to November 2018. The main commercial fish species were determined based on the catch volume. The biological parameters and growth characteristics of seven main commercial fishes (Cyprinus carpio, Carassius auratus, Xenocypris davidi, Culter alburnus, Chanodichthys mongolicus, Pseudobagrus fulvidraco, and Saurogobio dabryi) were analyzed with FiSAT II software, and the annual catches of each species were calculated using the catch per unit effort (CPUE). Thereafter, the fishery resources were preliminarily estimated using FiSAT Ⅱ software to compute the total resources of fish in the middle reaches of Jialing River. The results showed that the growth index b of the seven species ranged from 2.86 to 3.03, indicating that these fish species grow at a uniform rate. The growth coefficient K of the seven species was greater than 0.2, showing that these fish species have rapid growth. The growth performance index φ′ ranged from 4.40 to 5.30. The E value of S. dabryi was less than the corresponding Emax, indicating underutilization of resources, whereas the E values of the other species were greater than the corresponding Emax values, indicating excessive exploitation of resources. Among these fish species, the age of inflecting point of P. fulvidraco was the largest (4.26 years) and that of S. dabryi was the least (1.58 years), whereas that of most of the other species was less than 3 years. The annual resource masses of Cyprinus carpio, Carassius auratus, X. davidi, Culter alburnus, Chanodichthys mongolicus, P. fulvidraco, and S. dabryi were 3 883 t, 9 246 t, 2 469 t, 1 259 t, 862 t, 376 t, and 1 391 t, respectively. The total annual resource of fish in the middle reaches of Jialing River was 37 400 t. It was found that the community structure and population structure of the main commercial fish in the middle reaches of the Jialing River were miniaturized because of overfishing. This study provides a reference for evaluating the effectiveness of the fishing ban in the Yangtze River and a scientific basis for the formulation of reasonable fishery management measures in the middle reaches of Jialing River and the realization of sustainable fishery development.

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更新日期/Last Update: 2021-08-25