Effect of diet on growth of the mud spiny lobster Panulirus polyphagus (Herbst, 1793) and the sand lobster Thenus orientalis (Lund, 1793) held in captivity

摘要

Experiments were carried out to assess the effects of some natural diets on growth performance of theudmudspiny lobster Panulirus polyphagus and the sand lobster Thenus orientalis reared in captivity. Bothudspecies showed better response to shelled molluscs. P. polyphagus fed with the gastropod Turbo sp., andudT. orientalis fed with the clam Mercia opima showed better growth performance. The average dailyudgrowth of male and female P. polyphagus fed on Turbo sp. were 0.14 mm CL (0.47 g) and 0.12 mm CLud(0.33 g), respectively. T. orientalis fed on fresh clam showed the highest average daily growth rate ofud0.17 mm CL and 0.42 g. Analysis of Variance showed significant difference in growth increments (inudterms of Carapace Length and Weight) in lobsters reared on different diets.