Growth, mortality and exploitation status of Otolithoides pama (Hamilton, 1822) from Hooghly-Matlah estuary of West Bengal, India

被引:17
|
作者
Bhakta, Dibakar [1 ,2 ]
Das, Sudhir Kumar [1 ]
Das, Basanta Kumar [2 ]
Nagesh, Talagunda Srinivasan [1 ]
Samanta, Rupam [1 ]
机构
[1] WBUAFS, Dept Fisheries Resource Management, Fac Fishery Sci, Kolkata 700094, W Bengal, India
[2] ICAR Cent Inland Fisheries Res Inst, Kolkata 700120, W Bengal, India
关键词
Growth; Mortality parameters; Exploitation status; Otolithoides pama; Hooghly-Matlah estuary; India; JOHNIEOPS-SINA CUVIER; STOCK ASSESSMENT; PENNAHIA-MACROPHTHALMUS; POPULATION-DYNAMICS; PISCES-PERCIFORMES; THOOTHUKUDI COAST; BIAURITUS CANTOR; FISHERY; CROAKER; SCHNEIDER;
D O I
10.1016/j.rsma.2020.101451
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The growth, mortality and exploitation status of Otolithoides pama collected from the Hooghly-Matlah estuarine system of West Bengal, India from November 2016 to April 2018 were estimated. The sample specimens were collected from the artisanal fishery, mainly from drift gillnets and bagnet with mesh size 15-70 mm and the length-frequency distribution was analyzed employing the FiSAT programme. The growth parameters L-alpha, K and t(0) were estimated at 418 mm, 0.58 yr(-1) and -0.1356 years, respectively. The lengths of the fish at the end of 1st, 2nd, 3rd, 4th and 5th year were recorded as 202, 297, 350, 380 and 397 mm, respectively. The total mortality (Z), natural mortality (M) and fishing mortality (F) were 4.16, 1.14 and 3.02 yr(-1), respectively. The exploitation level (E) was observed as 0.73 which surpassed the optimization value of 0.5 considered for sustainable fisheries. The present study revealed that the fishery is overexploited and calls for an urgent need to reduce the fishing pressure to accomplish a sustainable fishery. (C) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页数:8
相关论文
共 31 条
  • [31] Identification and pathogenicity study of emerging fish pathogens Acinetobacter junii and Acinetobacter pittii recovered from a disease outbreak in Labeo catla (Hamilton, 1822) and Hypophthalmichthys molitrix (Valenciennes, 1844) of freshwater wetland in West Bengal, India
    Malick, Ramesh Chandra
    Bera, Asit Kumar
    Chowdhury, Hemanta
    Bhattacharya, Manojit
    Abdulla, Tanuja
    Swain, Himanshu Sekhar
    Baitha, Raju
    Kumar, Vikas
    Das, Basanta Kumar
    AQUACULTURE RESEARCH, 2020, 51 (06) : 2410 - 2420