(Adequates densities determination to larviculture of Macrobrachium amazonicum (Heller, 1862) (Crustacea, Decapoda, Palaemonidae.)

Authors

  • Vera Lucia LOBÃO Pesquisador Cientí­­fico -  Seção de Aquicultura da Divisão de Pesca Interior do Instituto de Pesca - Bolsista do CNPq
  • Nilton Eduardo Torres ROJAS Pesquisador Cientí­­fico -  Seção de Aquicultura da Divisão de Pesca Interior do Instituto de Pesca - Bolsista do CNPq
  • Helenice Pereira de BARROS Biologista - Estagiário do Instituto de Pesca - Bolsista do CNPq http://orcid.org/0000-0002-3537-8383
  • Marilda LACE Biologista - Estagiário do Instituto de Pesca - Bolsista do CNPq
  • Myriam Tereza HORIKAWA Biologista - Estagiário do Instituto de Pesca - Bolsista do CNPq
  • Luis Antonio Bezerra de Mello LULA Biologista - Estagiário do Instituto de Pesca

Keywords:

NíO CONSTA

Abstract

Larvae of Macrobrachium amazonicum were stocked at densities of 10, 20, 40, 60, 80, 100, 120, 140 and 160 larvae/liter, temperature maintained at 28°C and employed a salinity of 14%. The larvae were fed with Artemia salina and prepared food. Uneaten food materials and larval wastes at the tank bottom were removed daily by siphoning. The most suitable densities for larval rearing stocks were obtained by comparing the average of survival provided by the number of surviving post-larvae (density). The best survival rates (above 30%) were observed at lower densities (10, 20, 40 and 60 larvae/liter). Nevertheless, the density of 120 larvae / liter seems to be the most suitable for larval rearing in commercial scale, once it provides a higher mass production of post-larvae.

Published

2018-06-29