Impact of ports construction activities on structure, composition and diversity of fish population: case study of Tema, Ghana


  • Samuel K. K. Amponsah Department of Fisheries and Water Resources, University of Energy and Natural Resources, Sunyani, Ghana
  • Francis K. E. Nunoo Department of Marine and Fisheries Sciences, University of Ghana, Legon, Ghana
  • Angela M. Lamptey Department of Marine and Fisheries Sciences, University of Ghana, Legon, Ghana
  • Patrick K. Ofori-Danson Department of Marine and Fisheries Sciences, University of Ghana, Legon, Ghana
  • Ayaa Armah Enviromental Service Limited, Ghana



Marine fisheries, management, ecology


Ports offer economic progress to many coastal developing countries. In view of the economic importance, the rising demand for maritime benefits requires the expansion of existing ports. However, marine ecosystems may become vulnerable to negative impact from the construction of these maritime structures. Therefore, the aim of the study was to establish the impact of Tema port expansion on the diversity and population structure of fish species. Data were collected quarterly from June 2018 to November 2021 through trawling fishing activities off the coast of Greater Accra, Ghana, and subsequently analysed using Primer 6 software. Sampling locations along the coast of Greater Accra included Vernon Bank (VNB), Disposal area (DSA) and Offshore Sakumono (OSK). The increased and reduced number of species at VNB and DSA, respectively, could be alluded to dredging and disposal of dredged spoils. Diversity indices at OSK site was higher than those observed in disturbed areas due to the absence of impact in this control area. Thus, it is recommended to conduct further studies on the assemblage of invasive species that migrated to the VNB during dredging activities, since these species can have severe economic impact on fishing activities of artisanal fishermen, especially at the local level.


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How to Cite

Amponsah, S. K. K., Nunoo, F. K. E., Lamptey, A. M., Ofori-Danson, P. K. and Armah, A. (2023) “Impact of ports construction activities on structure, composition and diversity of fish population: case study of Tema, Ghana”, Marine and Fishery Sciences (MAFIS), 37(2), pp. 255–275. doi: 10.47193/mafis.3722024010502.

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