Efeito da composição iônica da água do mar artificial no desenvolvimento de larvas de Macrobrachium rosenbergii - DOI: 10.4025/actascibiolsci.v20i0.4484

Margarete Mallasen; Wagner Cotroni Valenti

doi:10.4025/actascibiolsci.v20i0.4484

Effect of artificial seawater ionic composition on the development of Macrobrachium rosenbergii (De Man, 1879) [Crustacea, Decapoda] at the larval stage II - DOI: 10.4025/actascibiolsci.v20i0.4484

Margarete Mallasen UNESP
Wagner Cotroni Valenti UNESP

DOI: https://doi.org/10.4025/actascibiolsci.v20i0.4484

Abstract

The importance of the ions Ca²⁺, K⁺, HCO₃^-, Br^-, Sr²⁺, Mn²⁺, HPO₄^2-, Li⁺, MoO₄^2-, S₂O₃^2-, Al³⁺, Rb⁺, Zn²⁺, Co²⁺ and Cu²⁺ in water on the development of Macrobrachium rosenbergii at the larval stage II was evaluated. A starvation test was applied. It consisted in keeping larvae of M. rosenbergii in beakers containing 15ml of brackish water (12‰) with different ionic compositions. In order to estimate average life time, larvae which survived the treatment were counted every eight hours. Elements Al³⁺, Rb⁺, Zn²⁺, Co²⁺,Cu²⁺, Sr²⁺, Mn²⁺, HPO₄^2-, Li⁺, MoO_4M^2- and S₂O₃² were not effective on the larvae life time, whereas K and Ca²⁺ were the most important ions for larvae development, followed by Br^- and HCO₃^-, respectively. These ions are indispensable in water and larvae must have an efficient mechanism to absorb them.

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Author Biography

Wagner Cotroni Valenti, UNESP

Possui graduação em Ciências Biológicas pela Universidade de São Paulo (1980), mestrado em Ciências Biológicas (Biologia) pela Universidade de São Paulo (1984) e doutorado em Ciências Biológicas (Biologia) pela Universidade de São Paulo (1989). Atualmente é Professor Adjunto da Universidade Estadual Paulista Júlio de Mesquita Filho, Professor titular-visitante da Universidad de Buenos Aires, Diretor da World Aquaculture Society e consultor "ad hoc" do U.S.D.A.-US Department of Agriculture. Em 2000 editou, em Oxford, Inglaterra, o livro que é referência internacional sobre cultivo de camarões de água doce, coordenando o trabalho de 32 especialistas da Ásia, Europa, América do Norte, Central e do Sul. Foi vice-presidente da Sociedade Mundial de Aqüicultura, com sede nos EUA, em 2003-2004. É editor da Blackwell Science (Oxford, UK) e Editor Associado do Journal of the World Aquaculture Society (Baton Rouge, LA, USA), além de consultor "ad hoc" dos principais periódicos internacionais na área de aquiculura, tais como Aquaculture, J. Applied Aquaculture, Aquaculture Economic and Management, Aquaculture International. Atua principalmente em Aquicultura e Recursos Pesqueiros, com ênfase em biologia e cultivo de camaões de água doce e sistemas sustentáveis de produção. Isto inclui estudos de toda a cadeia produtiva e aspectos econômicos, sistemas de larvicultura e crescimento final, ecologia de viveiros e efluentes Currículo Lattes

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Published

2008-07-21

How to Cite

Mallasen, M., & Valenti, W. C. (2008). Effect of artificial seawater ionic composition on the development of Macrobrachium rosenbergii (De Man, 1879) [Crustacea, Decapoda] at the larval stage II - DOI: 10.4025/actascibiolsci.v20i0.4484. Acta Scientiarum. Biological Sciences, 20, 195-200. https://doi.org/10.4025/actascibiolsci.v20i0.4484

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Issue

Vol 20 (1998)

Section

Biology Sciences

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