Induced maturation and spawning in five-month-old Penaeus monodon Fabricius by eyestalk ablation

Abstract

Pond-reared sugpo (Penaeus monodon Fabricius) females from coastal fry harvested after 4 months were unilaterally ablated and stocked in an indoor concrete tank with an equal number of males. The first two spawnings were obtained 22 d after ablation with the eggs hatching into viable nauplii. Five months (12–15 d from spawning to first postlarva, 14–16 d from first postlarva to coastal fry, and 4 months rearing in ponds) is the shortest age on record at which P. monodon females can be successfully ablated.