Attempted maturation of snook in ponds and cages
Snook (Centropomus undecimalis) were maintained in a 0.4-ha pond and in three cages in an 0.8-ha pond to induce maturation and spawning. The pond was stocked with 32 fish (13 males, 13 females and six unidentified) 25 May and 10 June 1988 and drained 31 October 1988. Snook were maintained in cages at a male to female ratio of 1:2 in two cages and 2:1 in the third cage from 10 June 1988 until 19 October 1988. Four to six fish from the pond were sampled monthly for evidence of gonadal maturation. Caged snook were sampled for evidence of gonadal maturation twice monthly. Ichthyoplankton samples were collected three times per week from the 0.4-ha pond to determine if spawning occurred. One spermiating male was found in the 0.4-ha pond, but no gravid females were found. No gonadal maturation was found in caged snook. No eggs or larval fish were found in ichthyoplankton samples.