Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana

Some life history aspects, including population parameters of Senegalese tongue sole (Cynoglossus senegalensis), in the coastal waters of Ghana, were studied between July 2018 and June 2019. The length data from a total of 528 specimens from the coastal waters of the Greater Accra region...

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Main Authors: Samuel K. K. Amponsah, Berchie Asiedu, Pierre Failler, Nii Amarquaye Commey
Format: Article
Language:English
Published: Academia.edu Journals 2023-04-01
Series:Academia Biology
Online Access:https://www.academia.edu/100922786/Population_dynamics_of_Cynoglossus_senegalensis_from_the_coastal_waters_of_Greater_Accra_Ghana
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author Samuel K. K. Amponsah
Berchie Asiedu
Pierre Failler
Nii Amarquaye Commey
author_facet Samuel K. K. Amponsah
Berchie Asiedu
Pierre Failler
Nii Amarquaye Commey
author_sort Samuel K. K. Amponsah
collection DOAJ
description Some life history aspects, including population parameters of Senegalese tongue sole (Cynoglossus senegalensis), in the coastal waters of Ghana, were studied between July 2018 and June 2019. The length data from a total of 528 specimens from the coastal waters of the Greater Accra region of Ghana was analysed for growth parameters, mortality parameters and biological reference points. The von Bertalanffy growth parameters were estimated at asymptotic length (L∞) = 57.2 cm TL, growth rate (K) = 0.40 per year, and growth performance index (Φ′) = 3.115. Mortality parameters were calculated as total mortality rate (Z) = 0.81 yr−1, the natural mortality rate (M) = 0.56 yr-1, and fishing mortality rate (F) 0.26 yr-1. The exploitation rate (E) of 0.31 was lower than both the optimum level and the exploitation rate at MSY (Emax = 0.64), indicating that C. senegalensis fishery in Ghana is underexploited. However, for sustainable management of the species, there is the need for continuous monitoring of fishing efforts and improve data collection.
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spelling doaj-art-c6cde1901722441fab2602092587ceb42025-02-10T23:13:24ZengAcademia.edu JournalsAcademia Biology2837-40102023-04-011210.20935/AcadBiol6028Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, GhanaSamuel K. K. Amponsah0Berchie Asiedu1Pierre Failler2Nii Amarquaye Commey3Department of Fisheries and Water Resources, University of Energy and Natural Resources, Sunyani, Ghana.Department of Fisheries and Water Resources, University of Energy and Natural Resources, Sunyani, Ghana.Centre for Blue Governance, University of Portsmouth, Richmond Building, Portland Street, Portsmouth, PO1 3DE, UK.ESL Consulting, Accra, Ghana. Some life history aspects, including population parameters of Senegalese tongue sole (Cynoglossus senegalensis), in the coastal waters of Ghana, were studied between July 2018 and June 2019. The length data from a total of 528 specimens from the coastal waters of the Greater Accra region of Ghana was analysed for growth parameters, mortality parameters and biological reference points. The von Bertalanffy growth parameters were estimated at asymptotic length (L∞) = 57.2 cm TL, growth rate (K) = 0.40 per year, and growth performance index (Φ′) = 3.115. Mortality parameters were calculated as total mortality rate (Z) = 0.81 yr−1, the natural mortality rate (M) = 0.56 yr-1, and fishing mortality rate (F) 0.26 yr-1. The exploitation rate (E) of 0.31 was lower than both the optimum level and the exploitation rate at MSY (Emax = 0.64), indicating that C. senegalensis fishery in Ghana is underexploited. However, for sustainable management of the species, there is the need for continuous monitoring of fishing efforts and improve data collection.https://www.academia.edu/100922786/Population_dynamics_of_Cynoglossus_senegalensis_from_the_coastal_waters_of_Greater_Accra_Ghana
spellingShingle Samuel K. K. Amponsah
Berchie Asiedu
Pierre Failler
Nii Amarquaye Commey
Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
Academia Biology
title Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
title_full Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
title_fullStr Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
title_full_unstemmed Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
title_short Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana
title_sort population dynamics of cynoglossus senegalensis from the coastal waters of greater accra ghana
url https://www.academia.edu/100922786/Population_dynamics_of_Cynoglossus_senegalensis_from_the_coastal_waters_of_Greater_Accra_Ghana
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