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The larval fishery on Limnothrissa miodon in the Congolese waters of Lake Tanganyika: Impact on exploitable biomass and the value of the fishery

Mulimbwa, N'sibula ; Sarvala, Jouko ; Micha, Jean‐Claude

Fisheries management and ecology, 2019-10, Vol.26 (5), p.444-450 [Periódico revisado por pares]

Oxford: Wiley Subscription Services, Inc

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Título:
The larval fishery on Limnothrissa miodon in the Congolese waters of Lake Tanganyika: Impact on exploitable biomass and the value of the fishery
Autor: Mulimbwa, N'sibula ; Sarvala, Jouko ; Micha, Jean‐Claude
Assuntos: Aquatic insects ; Beach seines ; Biomass ; Catch per unit effort ; clupeid fish ; Coastal zone ; Economic impact ; economic losses ; Economics ; Fish ; Fish harvest ; Fisheries ; Fishers ; Fishing ; Fishing communities ; Fishing effort ; Freshwater ; Freshwater fish ; Freshwater lakes ; Illegal fishing ; Inland water environment ; Lakes ; Larvae ; Limnothrissa miodon ; Mosquitoes ; rural communities ; Women
É parte de: Fisheries management and ecology, 2019-10, Vol.26 (5), p.444-450
Descrição: Declining catches of freshwater clupeids in Lake Tanganyika have recently led to widespread illegal fishing on the clupeid larvae with mosquito nets. This paper examines whether this larval fishery could have a negative impact on the exploitable biomass of the clupeid Limnothrissa miodon Boulenger and whether the sale of clupeid larvae is actually causing economic losses for the male fishers. The beach seine fishery on L. miodon larvae in the coastal zone of DR Congo was surveyed during a cruise in May 2013 from the north to the south of Lake Tanganyika. Local women fishing with their own gear were interviewed, their catch sampled, and their fishing effort evaluated. Based on catch sampling, the annual yield of larval fishing at the 17 fishing sites surveyed was about 24.5 t, worth of US $1.5 per kg. If these fish, now harvested as larvae, were allowed to grow to the average size in the lift‐net catches, they would have annually produced 620 t of fish. Applying a price of US $3.5 per kg for adult fish, and subtracting the value of larvae sold, this indicates that the current income of US $36, 800 from the larval fishery translated in to a US $2.1 million loss for the lift‐net fishery, thus accentuating the problems facing the fishing community.
Editor: Oxford: Wiley Subscription Services, Inc
Idioma: Inglês

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The larval fishery on Limnothrissa miodon in the Congolese waters of Lake Tanganyika: Impact on exploitable biomass and the value of the fishery

Mulimbwa, N'sibula ; Sarvala, Jouko ; Micha, Jean‐Claude

Oxford: Wiley Subscription Services, Inc

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