این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Aquatic Biology، جلد ۹، شماره ۶، صفحات ۳۶۰-۳۶۹
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Growth and exploitation parameters of ladyfish Elops lacerta Valenciennes, 1847 in the Ivorian’s exclusive economic zone, Côte d’Ivoire
چکیده انگلیسی مقاله West African ladyfish , Elops lacerta is a pelagic fish present in the coastal waters of West Africa from Mauritania to Angola. This study is conducted to provide data on the growth and exploitation parameters of E. lacerta important for the management and conservation of this species in the Ivorian’s Exclusive Economic Zone (EEZ). These parameters were estimated by the indirect method using length frequency data collected in the Ivorian’s EEZ during January 2019 to December 2020. Monthly length frequency data were analyzed by FiSAT II software . A total of 865 specimens were examined. The growth parameters from von Bertalanffy growth function (VBGF) estimations were L∞ = 60.38 cm fork length, K = 0.39 year −1 , and t 0 = 0.46 year. The estimated potential longevity (t max ) was 7.69 years. The exploitation parameters showed that the total mortality rate (Z), natural mortality rate (M) at 28.35°C and fishing mortality rate (F) were 1.57 year −1 , 0.80 year −1 and 0.77 year −1 , respectively. The exploitation rate (E = F/Z) was 0.49. This value is lower than the optimal exploitation value (E 50 ), thus expressing a case of under-exploitation of the species in the Ivorian’s EEZ. The size of first capture (Lc) below the size of first sexual maturity (FL 50 ) and the optimal size of capture (L opt ) requires the implementation of an adequate mesh size management policy to allow fish to reproduce several times before being captured.
کلیدواژه‌های انگلیسی مقاله Growth parameters, Von Bertalanffy model, Population dynamics, Exploitation rate, West Africa.
نویسندگان مقاله | Angelina Gbohono Loukou
Centre of Oceanology Research, B.P.V 18 Abidjan, Côte d’Ivoire.


| Soumaïla Sylla
University Nangui Abrogoua, Formation Unit and Research of Nature Sciences, Laboratory of Biology and Animal Cytology, 02 BP 801 Abidjan 02, Côte d’Ivoire.


| Olivier Assoi Etchian
Centre of Oceanology Research, B.P.V 18 Abidjan, Côte d’Ivoire


| Ida Akissi Konan
University Nangui Abrogoua, Formation Unit and Research of Nature Sciences, Laboratory of Biology and Animal Cytology, 02 BP 801 Abidjan 02, Côte d’Ivoire


| Célestin Boua Atse


نشانی اینترنتی http://ij-aquaticbiology.com/index.php/ijab/article/view/1362
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi) 10.22034/ijab.v9i6.1362
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Articles
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات