You are in the accessibility menu

Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorde Arruda Hayd, Liliam-
dc.contributor.authorLemos, Daniel-
dc.contributor.authorValenti, Wagner Cotroni-
dc.identifier.citationJournal of The World Aquaculture Society. Malden: Wiley-blackwell Publishing, Inc, v. 41, p. 107-115, 2010.-
dc.description.abstractDry mass (DM) and total ammonia-N (TAN) excretion were determined in embryos, larvae (ZI-ZIX, Z = zoea ), and postlarvae (PL) at 1, 7, and 14 d after metamorphosis (PL1, PL7, and PL14) of Macrobrachium amazonicum. Animals in postmolt-intermolt (A-C) stages were sorted according to their developmental stages, and placed into incubation chambers (similar to 30 mL) for 2 h to quantify TAN excretion. After this period, analyses were carried out using Koroleff's method for TAN determination. Individual TAN excretion generally increased throughout ontogenetic development and varied from 0.0090 +/- 0.0039 mu g TAN/individual/h in embryo to 1.041 +/- 0.249 mu g TAN/individual/h in PL14. There was no significant difference between embryo-ZIV and ZV-ZIX (P > 0.05), whereas PL1, PL7, and PL14 differed (P < 0.05) from each other. Higher increments in individual ammonia-N excretion were observed between ZIV-ZV, PL1-PL7, and PL7-PL14. Mass-specific excretion rates presented two groups, embryo-ZII (P > 0.05) and ZIII-PL14 (P > 0.05). The lowest value was found in embryo (0.17 +/- 0.07 mu g TAN/mg DM/h) and the maximum values in ZV and PL1 (0.65 +/- 0.25 and 0.64 +/- 0.27 mu g TAN/mg DM/h, respectively). Results indicate that metabolic rate is proportional to the body mass in M. amazonicum, during early life stages. Variations in ammonia excretion during this phase may be associated mainly with body size. Data obtained in the present study may be useful in developing and optimizing rearing techniques of M. amazonicum, such as the proportions between biofilter and rearing tank size, and stocking density in culture tanks or in transport bags.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.publisherWiley-Blackwell Publishing, Inc-
dc.sourceWeb of Science-
dc.titleOntogenetic Variation in Ammonia Excretion during the Early Life Stages of the Amazon River Prawn, Macrobrachium amazonicumen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Biol Aplicada, FCAV,Aquaculture Ctr, BR-14889900 Jaboticabal, SP, Brazil-
dc.description.affiliationMato Grosso Sul State Univ UEMS, BR-79200000 Aquidauana, MS, Brazil-
dc.description.affiliationUniv São Paulo, Inst Oceanograf, BR-05389900 São Paulo, Brazil-
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Biol Aplicada, FCAV,Aquaculture Ctr, BR-14889900 Jaboticabal, SP, Brazil-
dc.description.sponsorshipIdCAPES: 137030-
dc.description.sponsorshipIdFAPESP: 05/54276-0-
dc.description.sponsorshipIdFAPESP: 05/50578-2-
dc.description.sponsorshipIdFAPESP: 07/07051-9-
dc.description.sponsorshipIdCNPq: 504031/03-1-
dc.description.sponsorshipIdCNPq: 308444/06-0-
dc.description.sponsorshipIdCNPq: 474222/07-1-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of the World Aquaculture Society-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.