Production of crab-lets of Blue Swimming Crab with STAC’s Green House HDPE Liner Pond Mesocosm System

  A healthy Blue Swimming Crab female spawned with fertilized eggs was selected and put into the Green House-Mesocosm system. After about 13 days of incubation, the fertilized hatched out into Zoa 1. The Zoa metamorphosed several stages such as Zoa 2, Zoa 3, Zoa 4 and then Zoa 5 until it metamorphosed into Megalop on the 15 days. The Megalops molt and turn into Crab-lets. During the stages of Zoa to Megalops, rotifers, micro-capsulated feed and Artemia were given 4 time per day until crab-lets were metamorphosed.

1. Blue crab female carried fertilized eggs
2. Zoa stage of Blue Crab
3.Megalop stage of Blue Crab
4.STAC’s Green House Mesocosm system
5.Harvesting and grading of crab lets inside STAC’s Green house Mesocosm system in progress.
6 Crab lets selected for stocking in grow-out ponds.
7.Weight of crab-let for first 10 days of stocking.
7.Molted shell of crab lets.
8.Fast grower among the batch

Zoa stage of blue crab.