Assessing the population parameters of Decapterus punctatus (Cuvier 1829) from the coastal waters of Greater Accra, Ghana using TropFishR

Berchie Asiedu*, Samuel K. K. Amponsah, Nii Amarquaye Commey, Pierre Failler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Population parameters provide important information and can be considered important indicators of the variability and sustainability of stocks. The population parameters of Decapterus punctatus, in the coastal waters of Greater Accra, Ghana were studied between July 2018 and June 2019. We employed a two-stage sampling criterion in selecting five important fishing communities. In all, a total of 1,116 samples were collected randomly from selected fishermen who use multifilament fishing gears. The von Bertalanffy parameters were estimated at asymptotic length (L∞) = 29.8 cm, growth rate (K) = 0.35 per year and growth performance index (Φ′) = 2.49. Mortality parameters were calculated as total mortality rate (Z) = 1.77 per year, the natural mortality rate (M) = 0.62 per year, and fishing mortality rate (F) = 1.15 per year. The current exploitation rate
(Ecurrent) was lower than the maximum exploitation (Emsy), indicating that
D. punctatus fishery on the coast of Greater Accra is in a sustainable state.
Original languageEnglish
JournalEgyptian Journal of Aquatic Biology and Fisheries
Publication statusAccepted for publication - 24 Jun 2022

Keywords

  • Decapterus punctatus
  • Expoitation Rate
  • GrowthMortality
  • TropFishR
  • Ghana

Fingerprint

Dive into the research topics of 'Assessing the population parameters of Decapterus punctatus (Cuvier 1829) from the coastal waters of Greater Accra, Ghana using TropFishR'. Together they form a unique fingerprint.

Cite this