International Journal of Fisheries and Aquatic Studies
2018, Vol. 6, Issue 6, Part A
Comparison of population density of Simocephalus vetulus (Müller, 1776), cultured at 19, 23 and 25 °C, fed with bacteria produced in a Biofloc system
Author(s): Jorge M Castro, Germán M Castro, Andrés Elías C Castro and Jennifer M Ramírez
Abstract: The main goal of this study is to test produced bacteria in a Biofloc system to feed, in this case,
Simocephalus vetulus. This cladoceran was cultured by triplicate in 20 L containers, at three different temperatures (19, 23 and 25°C), during 60 days of culture under laboratory conditions. Bacteria were obtained from the Biofloc culture medium with tilapia, which were filtrated through a mesh of 20 µm. each third day, 10 samples of 10 mL were collected to know the quantity of organisms. The maximum density that was obtained was at the temperature of 23°C with 334,956±437 org 20L
-1. The ANOVA showed significant differences between the temperatures (
P<0.001). Obtained reproductive values were: r=0.16, Ro=628, and a Tc= 40.92. Growth tendency curves were polynomic of grade two. Produced heterotrophic bacteria in a Biofloc system can be used as food to maintain low densities of culture or as complementary food when microalgae are supplied.
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How to cite this article:
Jorge M Castro, Germán M Castro, Andrés Elías C Castro, Jennifer M Ramírez. Comparison of population density of Simocephalus vetulus (Müller, 1776), cultured at 19, 23 and 25 °C, fed with bacteria produced in a Biofloc system. Int J Fish Aquat Stud 2018;6(6):53-57.
