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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Effects of low salinity on juvenile pink shrimp Farfantepenaeus paulensis (Perez-Farfante 1967, Crustacea)

Texto completo
Autor(es):
Barbieri, Edison [1] ; Vigliar Bondioli, Ana Cristina [2] ; de Melo, Camila Batista [3] ; Henriques, Marcelo Barbosa [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Inst Pesca Secretaria Agr & Abastecimento Estado, Sao Paulo - Brazil
[2] Posdoutoranda Inst Pesca Secretaria Agr & Abastec, Cananeia - Brazil
[3] Inst Pesca Secretaria Agr & Abastecimento Estado, Programa Posgrad, Cananeia - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: MARINE AND FRESHWATER BEHAVIOUR AND PHYSIOLOGY; v. 47, n. 4, p. 273-283, 2014.
Citações Web of Science: 5
Resumo

It is of paramount importance to study salinity tolerance of commercially important crustaceans, such as the pink shrimp Farfantepenaeus paulensis to determine possible mortality causes in the wild and in aquaculture in oligohaline waters. The aim of this study was to determine the lethal salinity concentration (LC50) for juvenile pink shrimp F. paulensis and measure its oxygen consumption and ammonia excretion at different salinity levels. Shrimp of two length classes (49.4 +/- 4.3 and 78.5 +/- 5.5 mm) were placed in 10-L containers and exposed to salinity levels of 35, 30, 25, 20, 15, 10 and 5. The experiments were tripled, with seven shrimp in each container. The average lethal concentration (LC50s) for an exposure of 24 h was 13.33 (11.26-15.78) and 10.26 (8.60-12.64), respectively, for the two classes of juveniles. For an exposure of 48 h, LC50s were 12.71 (10.68-15.12) for the larger animals and 9.20 (7.34-11.52) for the smaller ones. There was an inverse relationship between salinity and rates of oxygen consumption and ammonia excretion. The average reduction in specific oxygen consumption in salinities 20, 25 and 30 showed a decrease in metabolic rate of 63, 80 and 82%, respectively, in relation to salinity level 0. The same occurred for the averages of ammonia excretion at salinity levels of 15, 20, 25, 30 and 35, which represented low metabolic rates of 57, 61, 70, 71 and 74% respectably in relation to salinity level 0. (AU)

Processo FAPESP: 12/50184-8 - Análise genética de ostras perliferas do gênero Pinctada ou da espécie Pinctada imbricata através de RFLP
Beneficiário:Edison Barbieri
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/50632-8 - Análise dos custos de produção da isca-viva do camarão rosa Farfantepenaeus paulensis e do camarão branco Litopenaeus schmitti em sistema fechado de circulação de água
Beneficiário:Marcelo Barbosa Henriques
Linha de fomento: Auxílio à Pesquisa - Regular