Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Tạp chí quốc tế 2023
Số tạp chí 13(2023) Trang: e10280
Tạp chí: Ecology and Evolution

Population's biological parameters, including length at first capture, mortalities, exploitation rates, growth coefficient, longevity, and recruitment times, are essential in assessing fishing status, but there is no data on Mystus mysticetus. Therefore, the study was conducted to provide these parameters to assess the fishing status of this species at Cai Rang, Can Tho (CRCT) and Long Phu, Soc Trang (LPST). A collection of 741 individual fish was used for analysis and showed that most fish size groups ranged from 9.0 cm to 12.0 cm, and the asymptotic length was 16.8 cm for both CRCT and LPST populations. The fish population von Bertalanffy curve was Lt = 16.80(1 − e−0.51(t + 0.38)) at CRCT and Lt = 16.80(1 − e−0.48(t + 0.40)) at LPST. The fish growth coefficient at CRCT (2.16) was higher than at LPST (2.13), whereas the reverse case was true for longevity ranging from 5.88 years (at CRCT) to 6.25 years (at LPST). At CRCT, fishing mortality, natural mortality, total mortality, and exploitation rate were 0.69/ year, 1.40/year, 2.09/year, and 0.33, respectively; at LPST, these values were 0.75/ year, 1.33/year, 2.08/year, and 0.36, respectively. Although the population parameter of this fish species exhibited a spatial variation, both CRCT and LPST fish resources have not been subjected to overexploit because E (0.33 at CRCT and 0.36 at LPST) is lower than E 0.1 (0.707 at CRCT and 0.616 at LPST).

Các bài báo khác
Số tạp chí 11(2023) Trang: 106-109
Tạp chí: International Journal of Fisheries and Aquatic Studies
Số tạp chí 11(2023) Trang: 1-16
Tạp chí: Journal of Law and Sustainable Development
Số tạp chí 13(2023) Trang: 15-23
Tạp chí: International Journal of Energy Economics and Policy
Số tạp chí 13(2023) Trang: 93-101
Tạp chí: International Journal of Energy Economics and Policy
Số tạp chí 8(2023) Trang: 140-157
Tạp chí: European Journal of Alternative Education Studies
Số tạp chí 6(2023) Trang: 1-15
Tạp chí: Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering


Vietnamese | English






 
 
Vui lòng chờ...