- Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries
- Vol: 6 Issue: 1
- Population Dynamics of Seabreams (Pagrus caeruleostictus, Pagellus bellottii, Dentex angolensis and ...
Population Dynamics of Seabreams (Pagrus caeruleostictus, Pagellus bellottii, Dentex angolensis and Dentex congoensis) from the Coast of Ghana, West Africa
Authors : Samuel Amponsah, Berchie Asiedu, Nii Commey Amarquaye, Emmanuel Ofori-boateng, Nana Ama Afranewaa, Samuel Henneh
Pages : 24-32
Doi:10.46384/jmsf.1231226
View : 20 | Download : 34
Publication Date : 2023-07-04
Article Type : Research Article
Abstract :Stock assessment indicators of Pagrus caeruloestictus, Pagellus bellotti, Dentex angolensis and Dentex congoensis from Ghana’s coastal waters were estimated between July 2018 and June 2019. Total length measurements of 2489 samples were collected from some selected coastal communities along the Greater Accra region of Ghana and analyzed using FISAT II Tool. The asymptotic length (L∞) for P. caeruleostictus, P. bellottii, D. angolensis and D. congoensis was 39.9 cm, 31.5 cm, 31.5 cm and 28.4 cm, respectively. The growth rate (K) was 0.18 yr-1 for P. caeruleostictus, 0.36 yr-1 for P. bellottii, 0.75 yr-1 for D. angolensis and 0.83 yr-1 for D. congoensis. The current exploitation rate (E) for P. caeruloestictus, P. bellotti, D. angolensis and D. congoensis was above the optimum level of 0.5, indicating that these species are facing high fishing pressure. To ensure sustainable management of the overexploited fish species, the need for relevant management measures such extension of the closed fishing season, reduced fishing effort and others are urgently required.Keywords : Mercan balıkları, Büyüme parametreleri, Ölüm parametreleri, Balıkçılık yönetimi