Projections of Gulf of Mexico Greater Amberjack, Seriola Dumerili, from 2003 through 2012

摘要

Projections of Gulf of Mexico greater amberjack were conducted at the request the Gulf of Mexico Fishery Management Council (memorandum from W. Swingle to J. Powers dated 5 Feb. 2002). The basic information and approaches were those used by the Reef Fish Stock Assessment Panel in developing their management advice (Anon. 2000) from the assessment of Turner et al. (2000). Projections were conducted to estimate yield streams associated with F30% and F40%, (fishing mortality rates which result in equilibrium spawning potential ratios (SPRs) of 30% and 40%), to illustrate two constant catch rebuilding scenarios which would rebuild the stock to SSB30% (spawning stock biomass at 30% SPR) within 10 years, and a scenario with constant catch followed by constant fishing mortality rate. The first constant catch scenario held catch constant for 10 years starting in 2003, while the second catch constant scenario and the scenario with constant catch followed by constant fishing mortality rate used two five year periods.