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Differences in sexual size dimorphism among farmed tilapia species and strains undergoing genetic improvement for body weight
Type: Journal Article
Many tilapia (Oreochromis spp.) farmers produce all-male populations because of the superior growth rate of males compared to females. To investigate differences in body weight at harvest of males and females among different ...
Growth performance of Nigerian fish stocks
Type: Journal Article
Parameters of the von Bertalanffy growth function are presented for 42 fish stocks belonging to 16 families, 22 genera and 27 species. The growth performance index, Phi '(= log K + 2logL sub( infinity )), was computed for ...
Performance evaluation of Nile tilapia (Oreochromis niloticus) improved strains in Ghana
Type: Journal Article
Growth performance and survival to harvest of the Akosombo strain generation 10 and the GIFT strain generation two (derived from GIFT generation 11 in Malaysia) were evaluated in Ghana. The fish were from 96 families of ...
Experimental and survey-based data on willingness to pay for seafood safety and environmental sustainability certification in Nigeria
Type: Journal Article
Fish/seafood represents an increasingly important source of animal protein in diets globally. Aquaculture growth, which already constitutes half of all seafood consumed by humans, is critical to meet increasing demand for ...
Length-weight relationships of fishes from tributaries of the Volta River, Ghana Part 1: Analysis of pooled data sets
Type: Journal Article
The parameters a and b of length-weight relationships of the form W = a L super(b) were estimated for 45 fish species sampled in the Oti, Pru and Black Volta rivers, Ghana. Also, the slope and intercepts of regressional ...
Are consumers in developing countries willing to pay for aquaculture food safety certification? Evidence from a field experiment in Nigeria
Type: Journal Article
Many developing countries face challenges in managing food safety risks associated with consumption of animal-source foods. Efforts to address these challenges increasingly recognize the role of certification in agri-food ...
Fishpen culture as a new production system in dammed valleys in the mid-Casamance, Senegal
Type: Journal Article
Fishpen culture is a possible means to increase fish production in Casamance, Senegal and to develop aquaculture without negative environmental effects. To study this possibility, a fishpen study was conducted in two dammed ...
Accelerating pond aquaculture development and resilience beyond COVID: Ensuring food and jobs in Ghana
Type: Journal Article
Over the past decade, the aquaculture sector in Ghana has experienced tremendous growth—driven mainly by large-scale cage aquaculture. Pond aquaculture, traditionally extensive and with limited external inputs, has been ...
Genetic diversity of Nile tilapia (Oreochromis niloticus) throughout West Africa
Type: Journal Article
Nile tilapia (Oreochromis niloticus) is a globally significant aquaculture species rapidly gaining status as a farmed commodity. In West Africa, wild Nile tilapia genetic resources are abundant yet knowledge of fine-scale ...
The future of fish in Africa: employment and investment opportunities
Type: Journal Article
One of the most pressing challenges facing food systems in Africa is ensuring availability of a healthy and sustainable diet to 2.4 billion people by 2050. The continent has struggled with development challenges, particularly ...