Habitat and Biology
Bottom type: Unspecified Depth zone: Abyssal Horizontal distribution: Oceanic Vertical distribution: Pelagic
Geographical Distribution
Jurisdictional distribution: Highly migratory
Resource Structure
Considered a single stock: Yes
Management
Considered a management unit: Yes
Biological State and Trend
Exploitation state: Moderately exploited
The catches and standardized fishing effort for striped marlin decreased in the EPO from 1990-1991 through 1998, and this decline has continued, with annual catches during 2000 to 2003 between about 2,000 and 2,100 t, levels that are well below estimated AMSY harvest levels. This may result in a continued increase in the biomass of the stock in the EPO. The current biomass is estimated to be greater than the biomass that would produce the AMSY. An analysis, using the Deriso-Schnute delay-difference model, yielded estimates of AMSY in the range of 8,700 to 9,200 t, with the current biomass greater than that needed to produce the AMSY and about 70% of the size of the unexploited biomass.
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