Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKalhoro, M T-
dc.contributor.authorYongtong, M-
dc.contributor.authorKalhoro, M A-
dc.contributor.authorShah, S B H-
dc.contributor.authorMemon, A M-
dc.contributor.authorMoshin, M-
dc.contributor.authorDahri, M A-
dc.identifier.issn0975-1033 (Online); 0379-5136 (Print)-
dc.description.abstractBombay duck, Harpadon nehereus (Hamilton, 1822), harvested mainly by dol nets, has been a prolific fishery in the northern Arabian Sea. Monthly length composition data for H. nehereus, landed at the Karachi Fish Harbor (KFH) from July 2014 to June 2015 was used to determine growth, mortality and stock evaluation. Total  2252 specimen with an average of 19.171 ± 2.659 cm TL (14 to 28 cm total length), an average of 45.254 ± 23.113 g of 9 to 174 g (total body weight) analyzed. The data used in FiSAT-II applying ELEFAN-I package for estimating population dynamics. The estimated the growth parameters of von Bertalanffy L∞ = 29.40 cm, K = 0.610 year-1 and t0 = -0.359 year-1 with a phi φ’ = 2.722. The length-weight relationship was W = 0.001L3.477 (R2 = 0.918) and b > 3 is described as positive allometric growth. Total mortality was calculated at Z = 1.800 year-1, natural mortality estimated at M = 1.276 year-1 at 27 °C in addition, fishing mortality rate was 0.524 year-1 is not much higher than the safe level (Fopt = 0.638 year-1) and a little below edge (Flimit = 0.850 year-1) biological reference points. Due to mortality and exploitation rate (E = 0.291 < 0.50), the population stock and reserves were underutilized.en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJMS Vol.49(07) [July 2020]en_US
dc.subjectArabian Seaen_US
dc.subjectHarpodon nehereusen_US
dc.titleResource evaluation, stock, growth and mortality of the Bombay duck (Harpodon nehereus Hamilton, 1822) fishery in the coastal waters of Pakistanen_US
Appears in Collections:IJMS Vol.49(07) [July 2020]

Files in This Item:
File Description SizeFormat 
IJMS 49(7) 1222-1228.pdf391.52 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.