Fecundity and oxygen consumption of the freshwater crab Trichodactylus borellianus (Decapoda: Trichodactylidae) in the alluvial valley of Middle Paraná (Argentina)

Authors

  • Eloisa Senkman INALI-CONICET-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina. FCYT UADER. Corrientes y Andrés Pazos-Paraná. Argentina
  • Verónica Williner INALI-CONICET-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina. FHUC-UNL. Ciudad Universitaria-Paraje El Pozo-Santa Fe. Argentina
  • Leandro Negro INALI-CONICET-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina. Escuela Superior de Sanidad-FBCB-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina
  • Natalia König FHUC-UNL. Ciudad Universitaria-Paraje El Pozo-Santa Fe. Argentina
  • Pablo Collins INALI-CONICET-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina Escuela Superior de Sanidad-FBCB-UNL. Ciudad Universitaria-Paraje EL Pozo-Santa Fe. Argentina

Keywords:

Decapods, island water, ovigerous female, physiology, South America.

Abstract

This paper analyzes the fecundity of Trichodactylus borellianus during a water cycle in the area of the Middle Paraná (Argentina) and the oxygen consumption of ovigerous females in experimental conditions. Mean and standard deviation values of fecundity (96 ± 36 eggs), egg wet mass (0.11 ± 0.08 g), egg volume (0.40 ± 0.08 mm3) and reproductive effort (0.22 ± 0.1) were obtained. Oxygen consumption no differed between ovigerous females, non-ovigerous females and males, but different however if between ovigerous females with eggs in different stages of development. Oxygen consumption in ovigerous females of T. borellianus shows a tendency to simultaneously invest energy in parental care (egg incubation) and in the development of gonads to optimize reproduction.

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Published

2017-01-03

How to Cite

Senkman, E., Williner, V., Negro, L., König, N., & Collins, P. (2017). Fecundity and oxygen consumption of the freshwater crab Trichodactylus borellianus (Decapoda: Trichodactylidae) in the alluvial valley of Middle Paraná (Argentina). HIDROBIOLÓGICA, 24(3), 287–296. Retrieved from https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/610

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