Differences in the age and growth of white grunt (Haemulon Plumieri) from North Carolina and South Carolina compared with southeast Florida
Abstract:White grunt, Haemulon plumieri, otoliths were collected from headboat and commercial fisheries in North Carolina and South Carolina (n = 607), and southeast Florida (n = 634). In addition, fishery-independent samples (n = 116) were collected from North Carolina and South Carolina. White grunt from the two regions along the southeastern U. S. coast may be separate stocks and should be analyzed separately for management purposes. White grunt from the Carolinas were larger at age than white grunt from southeast Florida. Age and size ranges of Carolina fish were 1–13 yrs and 173–512 mm total length (TL). Age and size ranges of southeast Florida fish were 2–15 yrs and 192–360 mm TL. White grunt caught off the Carolinas by recreational anglers since 1981 have averaged 60 to 100 mm TL larger than those landed by recreational anglers fishing off southeast Florida. The von Bertalanffy growth curves for this species from the Carolinas and southeast Florida are Lt = 591(1−e−0.08(t + 4.21)) and Lt = 327 (1−e−0.19(t + 4.21)), respectively. The weight-length relationship of white grunt from North Carolina and South Carolina is W = 1.12 × 10−5(L)3.05 and from southeast Florida, W = 6.33 × 10−5(L)2.73, where W = whole weight in g and L = TL in mm.
Document Type: Research Article
Publication date: January 1, 2001
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