Environmental and socioeconomic impact of cage aquaculture at Kpeve Tornu section of the Volta Lake, Ghana

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VIDZRO FRANCIS MENSAH
TED YEMOH ANNANG
BENJAMIN D. OFORI

Abstract

Mensah VF, Yemoh T, Ofori BD. 2018. Environmental and socioeconomic impact of cage aquaculture at Kpeve Tornu section of the Volta Lake. Bonorowo Wetlands 2: 84-95. Sufficient data on the financial viability of cage aquaculture in Ghana is limited, and only little is also known of the effects of fish farming on the Volta Lake on fishing communities. This study, therefore, sought to investigate these relevant issues at Kpeve Tornu, a fishing society in Afadjato South District in the Volta Region. Laboratory analysis of physicochemical parameters suggested that there were no significant differences between water quality parameters from four fish farms and two control locations. A cost-benefit analysis performed on five cages of volume 360 cubic meters each was 1.34 in the first production cycle, whereas a gross margin of 104.41 percent in the second production cycle suggesting that cage aquaculture industry in Ghana was financially viable. The cage aquaculture industry also impacted positively on the livelihoods of the people of Kpeve Tornu in regions of recruitment, poverty alleviation, trade, and food security. Cage fish farm owners did not comply fully with aquaculture rules. Aquaculture rules were effective on fingerlings and aquaculture related chemicals producers, but the rules on fish farmers needed a review because there were no definitions for intensive and semi-intensive fish farming in the aquaculture rules of Ghana.

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