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生态学杂志 ›› 2012, Vol. 31 ›› Issue (01): 235-240.

• 方法与技术 • 上一篇    下一篇

怒江东方墨头鱼资源量和死亡参数的估算

田辉伍1,2,岳兴建1,2,3,陈大庆1,段辛斌1,邓华堂1,刘绍平1**   

  1. 1 中国水产科学研究院长江水产研究所, 武汉 430223;2 西南大学生命科学学院水产科学重庆市市级重点实验室, 重庆 400715;3内江师范学院化学与生命科学系, 四川内江 641112
  • 出版日期:2012-01-08 发布日期:2012-01-08

Estimation of stock biomass and mortality parameters of oriental sucking barb (Garra orientalis) in Nujiang River of Sichuan Province, Southwest China. 

TIAN Hui-wu1,2, YUE Xing-jian1,2,3, CHEN Da-qing1, DUAN Xin-bin1, DENG Hua-tang1, LIU Shao-ping1**   

  1. 1 Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; 2 College of Life Science, Southwest University, Key Laboratory of Aquatic Science of Chongqing, Chongqing 400715, China; 3 Chemistry and Life Science Department, Neijiang Normal University, Sichuan Neijiang 641112, China
  • Online:2012-01-08 Published:2012-01-08

摘要: 2006年10月—2008年10月于怒江采集东方墨头鱼(Garra orientalis)136尾,体长54~167 mm,体重3~114.6 g。根据体长股分析法(LCA)对怒江东方墨头鱼资源量进行了初步评估,并建立Beverton-Holt动态综合模型预测资源变化趋势,为渔业管理提供参考。结果表明:种群总死亡系数(Z)和自然死亡系数(M)分别为0.511和0.238,捕捞死亡系数(F)和当前开发率(E)分别为0.273和0.534,2006—2008年怒江东方墨头鱼的平均资源量为1.47×104 kg,平均资源尾数为1.08×106尾,初始资源量为1.87×104 kg,初始资源尾数为1.38×106尾。经相关估算参数和相对单位补充渔获量分析得出,怒江东方墨头鱼已处于过度利用状态,因此有必要采取限制性措施以保护怒江东方墨头鱼资源。

关键词: 双齿围沙蚕, 镉, 石油烃, 生物富集, 金属硫蛋白

Abstract: In October 2006-October 2008, a total of 136 specimens of oriental sucking barb (Garra orientalis) with body length 54-167 mm and body weight 3-114.6 g were collected from Nujiang River. The stock mass of the oriental sucking barb in the River was tentatively estimated by using length-based cohort analysis (LCA), and the Beverton-Holt dynamic model was developed to predict the population dynamics of the oriental sucking barb to support fishery management. The total mortality rate (Z) and the natural mortality rate (M) of the population were 0.511 and 0.238, and the fishing mortality rate (F) and current exploitation rate (E) were 0.273 and 0.534 per year, respectively. In 2006-2008, the average stock of the oriental sucking barb was 1.47×104 kg, with 1.08×106 individuals, and the initial stock was 1.87×104 kg, with 1.38×106 individuals. The analysis of related parameters and relative yield per recruit suggested that the oriental sucking barb in Nujiang River was in over-exploitation.Consequent conservative fishery strategy should be carried out to protect the resources of oriental sucking barb in Nujiang River.

Key words: Perinereis aibuhitensis, cadmium, petroleum hydrocarbons, bioaccumulation, metallothionein.