ESTIMATION OF THE SIZE OF SEXUAL MATURITY IN REPRODUCERS OF Neocaridina heterópoda (Shrimp Cherry variety) (Cai, 1996), IN LABORATORY CONDITIONS.

Abstract

The cherry shrimp is one of the potential freshwater organisms for productive development due to its commercial demand in aquarium hobby, due to the scarce information that exists on this crustacean, this research was conducted with the purpose of knowing the reproductive sizes of female and male shrimp of the genus Neocaridiana sp., for which we worked with selected pimps from the Laboratory of Aquaculture Production Engineering (IPA). The females and males collected were arranged in six experimental units, consisting of glass containers of 0.20 m², with a volume of 2000 ml and as a substrate the Rical fluitans macroalga or moss was used. The ratio of female to male players was 2:1 respectively. The objective of this work was to establish size of sexual maturity between males and females under the temperature condition 22 ± 1ºC of the laboratory of ornamental organisms IPA. The results obtained show that sexual maturity in males was reached in 12.1 and 14 weeks, and in females in 14.2 and 16.4 weeks. Highly significant differences in size were found for the players; females achieved a higher mean in treatment two (2) and in males, a lower mean was defined in treatment five (5) with 20.4 mm. Likewise in females, synchronization of spawning per experimental unit was demonstrated, and fecundity estimated in 18 and 33 eggs in an ontogenic development that fluctuated between 18 and 25 days in all treatments.