Selectivity of gill nets used in the commercial spanish mackerel fishery of florida

Nelson M. Ehrhardt, David J. Die

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Selection curves of encircling (run-around) and drifting (stab) gill nets used in the winter fishery for Spanish mackerel Scomberomorus maculatus off southern Florida were estimated by use of cumulative probability distributions of retention girth at length. Selection curves corresponded well with observed size frequencies obtained from each mesh size. Increasing differences between maximum and head girth perimeters as fish grew resulted in selection curves indicating increased selection range and efficiency. Selectivity of Spanish mackerel gill nets will change as the condition of the fish changes with the onset of the spawning season. Apparently, selectivity also changes with twine size.

Original languageEnglish (US)
Pages (from-to)574-580
Number of pages7
JournalTransactions of the American Fisheries Society
Issue number6
StatePublished - Nov 1988

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science


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