Coastal Aquaculture and Mariculture

Unit 6- Crustaceans

6.2.3. Age and growth
Acetes spp are shoaling epipelagic non-penaeid shrimp. Acetes indicus grows to a maximum size of 40 mm; Acetes erythraeus attains a maximum size of 30 mm (female) and 20 mm (male) while for Acetes johni, it is 20 mm. Nematopalaemon tenuipes reaches a maximum size of 75 mm. Exhippolysmata ensirostris is the largest among the coastal non-penaeids, growing to a maximum size of about 90 mm. It attains 64.8 mm in 6 months and 92.8 mm in one year.
Lifespan
The fishable life span of Acetes indicus is 3 -6 months. It is about one year and slightly more than 1 year for Exhippolysmata ensirostris and Nematopalaemon tenuipes respectively.
Spawning
Acetes indicus breeds almost throughout the year in the shallow coastal waters showing peak spawning activity during September - January period.
Fecundity
The fecundity of Acetes indicus is 4,300 -1, 03,000 eggs.