Amendment 9 to the Fishery Management Plan for the Shrimp Fishery of the South Atlantic Region


Book Description

"The Fishery Management Plan for the Shrimp Fishery of the South Atlantic Region (Shrimp FMP) includes a process through which a state can request a concurrent closure of the exclusive economic zone (EEZ) to penaeid shrimp harvest when state waters close after a cold weather event. This is a multi-step process, which includes satisfying criteria for a decrease in shrimp abundance, review, and recommendation by the South Atlantic Fishery Management Council (South Atlantic Council), followed by a closure notice published by the National Marine Fisheries Service Regional Administrator. The South Atlantic Council is concerned this administratively burdensome process may unintentionally hinder protections for the overwintering stock affected by cold weather. Therefore, the South Atlantic Council is proposing an alternate closure request process to improve the timeliness and effectiveness of a concurrent closure of federal waters with state waters for harvest of shrimp. Additionally, the South Atlantic Council is proposing modifications to the BMSY proxy for pink shrimp, which is a component of the definition for overfished and overfishing status determination criteria. Currently, pink shrimp biomass information is captured through the Southeast Area Monitoring and Assessment Program (SEAMAP) survey program, which does not cover the complete geographic range of pink shrimp in the South Atlantic. Unlike brown and white shrimp, larvae produced by overwintering pink shrimp in North Carolina may be carried north beyond the SEAMAP sampling range by prevailing currents, and SEAMAP does not sample south of Cape Canaveral, Florida where pink shrimp are also known to exist. BMSY for pink shrimp was last addressed in Amendment 6 to the Shrimp FMP in 2004 (SAFMC 2004). Amendment 6 established a BMSY proxy for pink shrimp based on two thresholds: (a) if the stock diminishes to 1/2 maximum sustainable yield (MSY) abundance (1/2 BMSY) in one year, or (b) if the stock is diminished below MSY abundance (BMSY) for two consecutive years. A proxy for BMSY was established for pink shrimp using catch per unit effort information from SEAMAP data as the lowest values in the 1990-2003 time period that produced catches meeting MSY the following year. In this amendment, the South Atlantic Council considered other methods of determining BMSY for pink shrimp and revising the overfished proxy value as appropriate"--Abstract (page ii)







Effects of Trawling and Dredging on Seafloor Habitat


Book Description

Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.