Ribbonfish in Ghana: A Fishery at Risk

Ribbonfish (Trichiurus lepturus) have long been a cornerstone of Ghana’s coastal economy and food security, but recent scientific assessments reveal troubling signs of overexploitation. A study analyzing 626 individuals from four fishing communities found that fish are being captured at an average size of 26.7 cm, well below the maturity length of 41.6 cm. This mismatch points to recruitment overfishing, where stocks are harvested before they can reproduce. Mortality analysis showed total mortality at 2.69 year⁻¹, natural mortality at 1.07 year⁻¹, and fishing mortality at 1.62 year⁻¹, resulting in an exploitation rate of 0.60, above the optimal threshold of 0.5 and even exceeding the maximum sustainable level of 0.544. The consequence is clear: ribbonfish are being removed faster than they can replenish, leading to a steep production decline from 7,905 metric tons in 2015 to just 3,082 metric tons in 2023.

For coastal communities in Ghana, this is not just a statistic, it’s a direct threat to livelihoods, nutrition, and economic resilience. The findings from the research points to urgent management interventions including enforcing minimum landing sizes, regulating mesh sizes to reduce juvenile capture, and reducing fishing effort to bring exploitation rates back within sustainable limits. Protecting ribbonfish today means safeguarding the future of households, markets, and traditions that depend on them. Policymakers, researchers, and industry stakeholders must act now. Implementing science-based management measures is not optional, rather it’s essential. Without decisive action, Ghana risks losing one of its most important marine resources, along with the communities that depend on it. Let’s prioritize sustainability today to secure tomorrow’s food and economic resilience.