The flounder fishery scored > 80 in the MSC-RBF analysis, passing assessment with low risk of stock damage. The Productivity Susceptibility Analysis indicated greenback flounder is a highly productive species, with a short generation time, small size, and high fecundity. This species has low susceptibility to capture and damage by the fishery. Greenback flounder are caught almost exclusively on spear, with minimal gillnetting, which limits fishing effort to the shallow component of the species’ depth range (distributed < 100 m) and allows fishers to select mature fish. The Consequence Analysis showed a steady decline in CPUE from the mid-1990s to 2010, attributable to over-exploitation. This is likely to have affected the age/size/sex structure and reproductive capacity of the species. However, since the ban on overnight gillnetting (2010), catch has been minimal, so the analysis indicated stock structure and recruitment dynamics of greenback flounder are unlikely to be impacted substantially by current fishery activities.
Average age at maturity
Average maximum age
Average maximum size
Average size at maturity
More information on the Marine Stewardship Council Risk-Based Framework (MSC-RBF) Methodology is available on our MSC-RBF Assessment page:
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