Mysids or opossum shrimps are grouped under macro-zooplankton which are used for human consumption. Mysids are harvested using hand trawl made of mosquito netting during low tide period at surface water. The study was carried out on monthly basis from one site from Coastal area, three sites from Mangrove estuarine area and three sites from Saltpan twice a month during May 2016 to December 2017.They show significant variation in their availability in different seasons. All the embryos within a single brood pouch were found at the same stage of development. The development of embryos within the brood pouch divided into three distinct stages as “eggs like embryos”, “eyeless embryos” and “eyed embryos”. Mysids from Coastal waters found more fecund than mysids from other Estuarine waters and Salt pan waters. Brood ratio of “Egg like embryos”, “Eyeless embryos” and “Eyed embryos” also indicates that coastal waters are more productive followed by estuarine waters and salt pan waters.
