SciELO - Scientific Electronic Library Online

vol.46 número3Superoxide dismutase activity in tissues of juvenile cauque river prawn (Macrobrachium americanum Bate, 1868) fed with different levels of protein and lipidThermal preference, critical thermal limits, oxygen routine consumption and active metabolic scope of Macrobrachium tenellum (Smith, 1871) maintained at different acclimation temperatures índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google


Latin american journal of aquatic research

versión On-line ISSN 0718-560X


SANTOS-ROMERO, Rodolfo Benigno De los; GARCIA-GUERRERO, Marcelo Ulises; ALPUCHE-OSORNO, Juan José  y  CORTES-JACINTO, Edilmar. The effect of alpha males and shelter type on growth and survival of the longarm prawn Macrobrachium tenellum (). Lat. Am. J. Aquat. Res. [online]. 2018, vol.46, n.3, pp.551-557. ISSN 0718-560X.

The longarm river prawn Macrobrachium tenellum is extensively exposed to artisanal fisheries in its distribution range and have culture potential. However, its aggressiveness and territorial behavior limits its management in captivity. Because of this, it is neccesary to evaluate the effect of alpha males on regular males, as well as different kinds of shelters, to find how this affects growth and survival. For this, an experimental design was established in order to determine the effect of thos issues on growth of cultured juvenile prawns. Growth of prawns with no alpha males had no significant differences (P > 0.05). However, the interaction between shelter type and the hierarchical males revealed statistical differences (P < 0.05) in comparison with the rest in terms of survival. It is suggested that the effects on growth and survival caused by the social hierarchy of prawns and the use of shelters are part of a wider range of interactions that may be related ecologically, ethologically, and physiologically.

Palabras clave : Macrobrachium tenellum; freshwater shrimp; growth; survival; intraespecific relation; morphotypes.

        · texto en Inglés     · Inglés ( pdf )