High cod catches could have been sustained in Eastern Canada for decades, simple stock assessment method shows

High cod catches could have been sustained in Eastern Canada for decades, simple stock assessment method shows

High cod catches could have been sustained in Eastern Canada for decades, simple stock assessment method shows
Fishing for Atlantic cod off the southern coast of Fogo Island, Newfoundland. Photo by Phillip Meintzer, Wikimedia Commons.

A simple fish stock assessment model applied to over 500 years of catch data demonstrated that if Canadian authorities had allowed for the rebuilding of the stock of northern Atlantic cod off Newfoundland and Labrador in the 1980s, annual catches of about 200,000 tonnes could have been sustained.

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As fishing effort grows, catches decline in the Mozambique Channel region

As fishing effort grows, catches decline in the Mozambique Channel region

As fishing effort grows, catches decline in the Mozambique Channel region

Artisanal fishers in Mozambique. Photo by Stig Nygaard, Flickr.

Substantial growth in the number of motorized vessels operating in the Mozambique Channel region between East Africa and Madagascar in the past 65 years has led to a 60-fold increase in effective small-scale fishing effort and a 91 per cent decline in Catch Per Unit of Effort (CPUE).

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Preliminary assessments of 26 West African fish stocks hint at overexploited populations

Preliminary assessment of 26 West African fish stocks points at overexploited populations

Preliminary assessments of 26 West African fish stocks hint at overexploited populations

Bonga shad (Ethmalosa fimbriat) taken from the waters of Guinea Bissau. Photo by Falia, Wikimedia Commons.

Twenty-six fish and invertebrate populations that live in the waters of eight West African countries are likely overfished or at risk of being overfished, a new Fisheries Centre Research Report reveals.

Preliminary results from the application of the CMSY and LBB stock assessment methods to fish populations in the EEZs of Cape Verde, The Gambia, Guinea, Guinea-Bissau, Liberia, Mauritania, Senegal and Sierra Leone, indicate that some stocks – such as that of cassava croaker off the coast of Liberia – are strongly overexploited.

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