Accelerating pond aquaculture development and resilience beyond COVID: Ensuring food and jobs in Ghana

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 transforming over the same period. Farm profitability was wide-ranging, between −12.00 and 46.00 Ghanaian cedi (GHC) per square meter (m2), with an average of GHC 8.82/m2 for farmers active in 2019. Despite wide variability in production and profits, the majority of farmers experienced positive profits—on average, GHC 3.24 per kilogram of tilapia produced, or a 27% profit margin. Farmers who adopted good aquaculture practices and intensified their production have high productivity and positive profits. Nonetheless, the cost to produce 1 kg of tilapia in Ghana (roughly US$1.51 on average) was much higher than in other major tilapia-producing countries (averaging roughly US$0.78 to 1.29). COVID crisis further affected fish farmers: 54% experienced difficulties in accessing inputs, 56% experienced difficulties selling their fish, and farmgate fish prices went down in April–August, although slowly bounced back by end of 2020. Improving the competitiveness and resilience of Ghanaian tilapia sector will require improved seed, increased adoption of good management practices, lower-cost quality feed, and enabling policies and regulations

Farmers' manual on small-scale tilapia cage farming in Ghana

This manual provides a comprehensive step-by-step guide to cage aquaculture. It includes tips on site selection, site preparation, cage design and construction, farming practices (cage preparation, stocking, feeding), biosecurity and fish health management, harvesting and marketing and recordkeeping – all of which are critical elements of a successful tilapia cage farming business operation. Aquaculture has existed in Ghana since the 1950s, though the sector didn’t experience major growth until around 2000, when large-scale commercial production began. Today, it plays a key role in the nation’s prosperity, contributing to food security by augmenting domestic fish production and creating jobs. Even so, challenges that have historically plagued the sector and hindered growth remain pervasive. These include low technical know-how and a lack of quality inputs such as seed and feed. Although knowledge in the sector has increased over the years, small-scale farmers (most of whom are indigenous) continue to struggle with basic farming practices. As a result, they’re often faced with poor yields, which can ultimately lead to a farm’s collapse. The Tilapia Seed Project is aimed at accelerating quality tilapia seed production and dissemination in Ghana. Project stakeholders produced this manual to provide accurate direction to small-scale fish farmers in Ghana. After reviewing its contents, we expect that it will prove instrumental in helping farmers improve production, and that it will serve as a valuable catalyst for growth in this important sector.Non-PRIFPRI5; TiSeed; CRP2; CRP3.7DSGD; PIM32 pagesCGIAR Research Program on Fish; CGIAR Research Program on Policies, Institutions, and Markets (PIM

Farmers' manual on small-scale tilapia pond farming in Ghana

This manual provides a comprehensive step-by-step guide to pond aquaculture. It includes tips on site selection, site preparation, pond design and construction, farming practices (pond preparation, stocking, and feeding), biosecurity and fish health management, harvesting and marketing and recordkeeping - all of which are critical elements of a successful tilapia pond aqua-farming business operation. Aquaculture has existed in Ghana since the 1950s, though the sector didn’t experience major growth until around 2000, when large-scale commercial production began. Today, it plays a key role in the nation’s prosperity, contributing to food security by augmenting domestic fish production and creating jobs. Even so, challenges that have historically plagued the sector and hindered growth remain pervasive. These include low technical know-how and a lack of quality inputs such as seed and feed. Although knowledge in the sector has increased over the years, small-scale farmers (most of whom are indigenous) continue to struggle with basic farming practices. As a result, they’re often faced with poor yields, which can ultimately lead to a farm’s collapse. The Tilapia Seed Project is aimed at accelerating quality tilapia seed production and dissemination in Ghana. Project stakeholders produced this manual to provide accurate direction to small-scale fish farmers in Ghana. After reviewing its contents, we expect that it will prove instrumental in helping farmers improve production, and that it will serve as a valuable catalyst for growth in this important sector.Non-PRIFPRI5; TiSeed; CRP2; CRP3.7DSGD; PIM45 pagesCGIAR Research Program on Policies, Institutions, and Markets (PIM); CGIAR Research Program on Fis

Farmers' manual on tilapia hatchery operation in Ghana

This manual provides a comprehensive step-by-step guide to running a tilapia hatchery operation. It includes advice on site selection, site preparation, hatchery design and construction, farming practices (broodstock management, spawning, sex reversal, hormonal feed preparation and feeding), fingerling harvesting and marketing, biosecurity and fish health management, good farm management practices and recordkeeping - all of which are critical elements of a successful tilapia hatchery operation.Non-PRIFPRI5; TiSeed; CRP2; CRP3.7DSGD; PIM47 pagesCGIAR Research Program on Fish; CGIAR Research Program on Policies, Institutions, and Markets (PIM

Genetic diversity of Nile tilapia (Oreochromis niloticus) throughout West Africa

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 population structure and patterns of natural genetic variation are limited. Coinciding with this is a burgeoning growth in tilapia aquaculture in Ghana and other countries within the region underpinned by locally available genetic resources. Using 192 single nucleotide polymorphism (SNP) markers this study conducted a genetic survey of Nile tilapia throughout West Africa, sampling 23 wild populations across eight countries (Benin, Burkina Faso, Côte d’Ivoire, Ghana, Togo, Mali, Gambia and Senegal), representing the major catchments of the Volta, Niger, Senegal and Gambia River basins. A pattern of isolation-by-distance and significant spatial genetic structure was identified throughout West Africa (Global FST = 0.144), which largely corresponds to major river basins and, to a lesser extent, sub-basins. Two populations from the Gambia River (Kudang and Walekounda), one from the western Niger River (Lake Sélingué) and one from the upper Red Volta River (Kongoussi) showed markedly lower levels of diversity and high genetic differentiation compared to all other populations, suggesting genetically isolated populations occurring across the region. Genetic structure within the Volta Basin did not always follow the pattern expected for sub-river basins. This study identifies clear genetic structuring and differentiation amongst West African Nile tilapia populations, which concur with broad patterns found in previous studies. In addition, we provide new evidence for fine-scale genetic structuring within the Volta Basin and previously unidentified genetic differences of populations in Gambia. The 192 SNP marker suite used in this study is a useful tool for differentiating tilapia populations and we recommend incorporating this marker suite into future population screening of O. niloticus. Our results form the basis of a solid platform for future research on wild tilapia genetic resources in West Africa, and the identification of potentially valuable germplasm for use in ongoing breeding programs for aquaculture

Assessment of waste generated from fresh Nile tilapia Oreochromis niloticus in Accra, Ghana

Abstract Aquaculture is a key component of Ghana's food system strategies, promoting sustainable animal protein production. Aquaculture complements traditional marine capture fisheries to close the gap between demand and supply. However, about one third of fish produced globally have been reported to go to waste yearly. Among the various cultured fish, the Nile tilapia Oreochromis niloticus is a predominant species. This study aimed to estimate the extent of Nile tilapia wastage by consumers in Ghana. A web‐based cross‐sectional consumer survey was designed to assess the parts of the tilapia consumers generally classified as edible or inedible, taking into account the three primary tilapia preparation methods. The study utilised a semi‐structured online questionnaire, gathering responses from 246 participants. The parts of Nile tilapia investigated included the flesh, fins, offal, head, scales, bones, and gill flaps/opercula. The analysis of consumed and wasted parts of Nile tilapias by weight showed that, on average, the flesh made up the majority of the fish at 55.26%, followed by the head at 26.46%, offal at 8.51%, scales at 3.10%, fins at 2.93%, bones at 2.76%, and operculum at 0.98%, which was the smallest component. The study concluded that approximately 30%–45% of waste is generated from Nile tilapia in the Ghanaian supply chain. Tilapia was widely consumed by all groups, with an average liking score of 7.69 ± 1.95 on a 10‐point hedonic scale. A significant association was found between gender and consumption patterns with females showing a higher degree of liking. There was a strong association between the method of preparation and consumption patterns; the fried parts were classified as more edible compared to those that were boiled or grilled. To reduce waste in the aquaculture industry, tilapia and other fishes could be processed in a way that various edible and inedible parts are sold separately