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Factors affecting growth and maturation of spiny lobsters, Panulirus argus, in the Florida Keys
Hunt, J.H.; Lyons, W.G. (1986). Factors affecting growth and maturation of spiny lobsters, Panulirus argus, in the Florida Keys. Can. J. Fish. Aquat. Sci. 43(11): 2243-2247
In: Canadian Journal of Fisheries and Aquatic Sciences = Journal canadien des sciences halieutiques et aquatiques. National Research Council Canada: Ottawa. ISSN 0706-652X, more
Peer reviewed article  

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Keywords
    Bioenergetics; Growth; Injuries; Marine crustaceans; Maturation; Molting; Sexual maturity; Panulirus argus (Latreille, 1804) [WoRMS]; Marine

Authors  Top 
  • Hunt, J.H.
  • Lyons, W.G.

Abstract
    Overall growth rates of sublegal-sized (50-75 mm carapace length (CL) and large ( greater than or approximate to 76 mm CL) spiny lobsters, Panulirus argus, in the Florida Keys were 0.46 and 0.15 mm CL/wk; growth rates were 48 and 67% less, respectively, in winter than in summer. Injuries caused a significant 39% growth reduction in small ( less than or approximate to 60 mm CL) lobsters. Growth decreased dramatically between 74 mm CL (0.46 mm CL/wk) and 76 mm CL (0.23 CL/wk). Between 71 - 75 and 76 - 80 mm CL size classes, intermolt periods of females increased 58% and molt increments decreased 16%; male intermolt periods increased 33% but molt increments did not change until 85 mm CL. Consequently, large ( greater than or approximate to 76 mm CL) males grew 33% faster than females. Changes in growth rates signified a shift in energy use at onset of maturation.

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