November 28, 2016 — The results of a recent collaborative study between researchers at Rutgers University and Stockton University of New Jersey, the University of Rhode Island, and Cornell Cooperative Extension of Suffolk County, NY and Cornell University may hold the key to bold new management changes in the summer flounder fishery.
The research project, Sex and Length of Summer Flounder Discards in the Recreational Fishery, NJ to RI, spanned the 2016 summer flounder recreational season beginning May 23 and continuing through September 16. Samples were collected aboard for-hire recreational fishing vessels from selected ports in New Jersey, New York, and Rhode Island, and were supplemented by a series of back bay, shallow water trips.
Samples were collected from stations ranging in depth from 5 to 95 feet and spanning a latitudinal range from just off the coast of Delaware to coastal Rhode Island. According to the survey results, sex-at-length data was collected for a total of 2,243 discard-sized fish and 842 legal-sized fish.
Researchers say lab analysis findings confirm prior observations that female summer flounder dominate the recreational catch, although it was also demonstrated that this does not hold below the legal size limit where fish smaller than the legal limit were predominately male. On average, across all ports, dates and depths, the sex ratio approximates 50:50 at 15.35 inches in length, with males dominant in the size classes less than that mark and females dominant above the 15.35-inch (39 cm) mark.