Vui lòng dùng định danh này để trích dẫn hoặc liên kết đến tài liệu này: https://dspace.ctu.edu.vn/jspui/handle/123456789/5062
Nhan đề: Population dynamics of Boleophthalmus boddarti in the Mekong Delta, Vietnam
Tác giả: Đinh, Minh Quang
Từ khoá: Mortality indices
Longevity
Growth performance
Exploitation rate
Năm xuất bản: 2017
Tùng thư/Số báo cáo: The Journal of Animal & Plant Sciences;27 .- p.603-610
Tóm tắt: Boleophthalmusboddarti has been increasingly being fished, but little is known about its population dynamics. This study aims to provide some basic parameters of its population biology used for fishery management. A total of 1702 individuals collected by deep gill net along the mudflat in the Mekong Delta, Vietnam, from March 2013 to February 2014. Data analysis showed that the male to female B. boddarti ratio was nearly 1:1.The parameters of von Bertalanffy growth function fitting to the length frequency data were L∞= 16.8 cm, K = 0.79 yrˉ¹ and t₀ = –0.24 yrˉ¹. The longevity (tmax) and the growth performance (Φ’) were 3.55 yrs and 2.35, respectively. The fishing mortality (F = 0.30 yrˉ¹) and natural mortality (M = 1.83 yrˉ¹) amounted for 14.1% and 85.9% of the total mortality (Z = 2.13 yrˉ¹), respectively. There were two recruitment peaks separated by an interval of 6 months and relative yield-per-recruit and biomass-per-recruit analyses gave Emax = 0.737, E₀.₁ = 0.618 and E₀.₅ = 0.348. This study reported that this mudskipper could be potential for future aquaculture due to high growth constant (K), and the local government should require fisherman to change the deep gill net mesh size for the future sustainable exploitation and development.
Định danh: http://localhost:8080//jspui/handle/123456789/5062
ISSN: 1018-7081
Bộ sưu tập: Tạp chí quốc tế

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