Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)

The effect of density on growth, sex ratio, survival, and biochemical composition of the red cherry shrimp, <i>Neocaridina davidi</i> Bouvier, 1904, was studied to determine optimum rearing conditions in this ornamental species. It was tested whether gender segregation affected growth an...

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Autores principales:	Vazquez, Nicolás D., Delevati Colpo, Karine, Sganga, Daniela E., López Greco, Laura S.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2017
Materias:	Ciencias Naturales Aquaculture Biochemical composition Growth Rearing conditions Survival
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/87436
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-87436
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Aquaculture Biochemical composition Growth Rearing conditions Survival
spellingShingle	Ciencias Naturales Aquaculture Biochemical composition Growth Rearing conditions Survival Vazquez, Nicolás D. Delevati Colpo, Karine Sganga, Daniela E. López Greco, Laura S. Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
topic_facet	Ciencias Naturales Aquaculture Biochemical composition Growth Rearing conditions Survival
description	The effect of density on growth, sex ratio, survival, and biochemical composition of the red cherry shrimp, <i>Neocaridina davidi</i> Bouvier, 1904, was studied to determine optimum rearing conditions in this ornamental species. It was tested whether gender segregation affected growth and survival of the species. To test the effect of density (Experiment 1), hatched juvenile shrimp were kept at three different densities: 2.5, 5, and 10 individuals l<sup>-1</sup> (D<sub>2.5</sub>, D<sub>5</sub> and D<sub>10</sub>, respectively). To test the effect of gender segregation (Experiment 2), 30-day juveniles were reared in three conditions: culture with only females, culture with only males, and mixed culture (females: males 1:1) at 5 individuals l<sup>-1</sup> density. Experiments lasted 90 days, and shrimp were weighted either every 30 days (Experiment 1) or 15 days (Experiment 2). At day 90, females kept at D<sub>2.5</sub> weighted 45% more than females stocked at D<sub>10</sub> (P < 0.05), whereas females from D<sub>5</sub did not differ from those of other densities (P > 0.05). Males at D<sub>2.5</sub> weighted 29% more than D<sub>5</sub and D<sub>10</sub> (P < 0.05). Survival was high and unaffected by treatment. Sexual differentiation did not differ among treatments. Females from D<sub>2.5</sub> had the lowest lipid and protein content, which would occur if they had a higher spawning. Males from D<sub>2.5</sub> had higher content of proteins, probably due to their larger size. Gender segregation had no effect over growth and survival; females grew up to a larger size than males both in monosex and mixed culture. It was shown that given to their non-aggressive behavior, <i>N. davidi</i> is tolerant to a highdensity condition, which makes it feasible as an ornamental species.
format	Articulo Articulo
author	Vazquez, Nicolás D. Delevati Colpo, Karine Sganga, Daniela E. López Greco, Laura S.
author_facet	Vazquez, Nicolás D. Delevati Colpo, Karine Sganga, Daniela E. López Greco, Laura S.
author_sort	Vazquez, Nicolás D.
title	Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
title_short	Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
title_full	Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
title_fullStr	Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
title_full_unstemmed	Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)
title_sort	density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>neocaridina davidi</i> bouvier, 1904 (caridea: atyidae)
publishDate	2017
url	http://sedici.unlp.edu.ar/handle/10915/87436
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Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp <i>Neocaridina davidi</i> Bouvier, 1904 (Caridea: Atyidae)

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