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Characterization and Assessment of the Main Hawaiian Island Kona Crab (Ranina ranina) Fishery
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2015
[PDF-1.68 MB]
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Description:This reports represents the first review of the Kona crab fishery in Hawaii in more than 30 years. The primary objective of this report is to assess the stock of the Kona crab fishery in the Main Hawaiian Islands. A summary of known life history characteristics is provided as well as an investigation of the historical data on temporal and spatial aspects of this fishery. A generalized linear model is used to standardize annual CPUE by removing potential effects of season and area on the distribution and catchability of Kona crabs. Three hypotheses are tested by the generalized linear model to determine possible area characteristics controlling Kona crab distribution: (1) Island in closest proximity to fishing area, (2) depth of fishing area (inshore or offshore) and (3) wave intensity experienced by fishing area. The commercial landings data and relative index of stock abundance (estimated by the generalized linear model) are then fit to a generalized surplus production model to estimate the model parameters of the fishery: maximum sustainable yield, fishing mortality at maximum sustainable yield, as well as a time trajectory of estimated stock biomass and fishing mortality. Stock biomass projections based on future potential catch scenarios are also provided.
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Rights Information:Public Domain
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Compliance:Submitted
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