how to manage a sustainable small scale artisanal fishery
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How to manage a sustainable small scale artisanal fishery. Erik Maitz Boman – Data monitoring officer Department of Agriculture and Fisheries. What is a sustainable fishery?. - PowerPoint PPT PresentationTRANSCRIPT
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How to manage a sustainable small scale artisanal fishery
Erik Maitz Boman – Data monitoring officer
Department of Agriculture and Fisheries
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What is a sustainable fishery?
• Ecological sustainability – maintaining the resource base at levels that do not foreclose future options and maintaining or enhancing ecosystem capacity, quality and resilience.
• Socio-economic sustainability – maintaining or enhancing overall socio-economic welfare (employment, livelihood, food supply).
• Community sustainability – maintaining or enhancing the communities economic and socio-culture well-being.
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Ecological sustainable indicators
• Catch level and effort• Fish population size• Biomass trend• Fish size, length frequency• Environmental Quality• Diversity (harvested species)• Diversity (ecosystem)
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What kind of fishery do we have on Statia?
• Statia has an artisanal small scale fisheries.• Fishing fleet consist of small open boats.
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What kind of fishery do we have on Statia?
• Eight main fishing methods.• More than 60 different species are targeted.• Understanding of the kind of fisheries you
manage is crucial.
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What is the optimal fishing patter?
• Fisheries management involves numerous social and economic concerns but only two biological considerations.
• How much can be caught and how should it be caught?
• “How much” refers to the total amount of fish, that can be removed from a fish stock relative to its productivity?
• “How” refers to the specific fishing methods used to obtain the targeted amount.
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How much ?
How ?
How?A non-selective
harvesting pattern is ecosystem conserving.
The system remains unchanged, except everything is less.
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How much?
• What is “overfishing”? • Its when the rate of removal from stock is too
high so that the reproductive individuals in the stock can not replace the removed individuals with new.
• Fish stocks can become “overfished” for many reasons, including natural mortality, disease, environmental conditions and fishing.
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How much?Density dependence
Carrying capacity
Reducing the biomass to half its virgin stateis where the stock has highest regenerative rate
Density
K2
The logistic Gordon-Schaefer model
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Other stakeholders to consider
• Industries, divers, tourists, locals.• Have to a certain degree consider the other
stake holders needs.
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How can tourism help managers create and maintain a sustainable fishery?
• Different species in demand from tourists and locals (multispecies, multigear).
• Less depended on near shore areas which may be more heavily fished.
• Opportunities for fishermen for additional source of income (fishing charters, catch release programs etc.).
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Do we have a sustainable fishery on Statia?
• Small scale, multigear/multispecies, unselective (to a degree).
• Fisheries monitoring program (collection of fisheries data).
• Managers and fishermen are provided with information regarding status of the fish stocks and environmental quality.
• Yes we have a sustainable fishery on Statia.
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