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METABOLIC AND HISTOLOGICAL ALTERATIONS AFTER EXPOSING Deuterodon iguape TO DIFFERENT SALINITIES

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Autor(es):
Barbieri, Edison [1] ; Oliveira Rezende, Karina Fernandes [2] ; Carneiro, Julia Schulz [3] ; Henriques, Marcelo Barbosa [3]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Inst Pesca Governo Estado Sao Paulo, Av Prof Wladimir Besnard S-N, BR-11990000 Cananeia, SP - Brazil
[2] Laureate Int Univ, R Quata 67, BR-04546040 Sao Paulo, SP - Brazil
[3] Inst Pesca Governo Estado Sao Paulo, Av Bartolomeu de Gusmao 192, BR-11030906 Santos, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: BOLETIM DO INSTITUTO DE PESCA; v. 45, n. 2 2019.
Citações Web of Science: 0
Resumo

The decrease of the live bait stock for the sport fishing, in estuarine and marine environments, has stimulated studies looking for species tolerant to the different salinities. Lambari Deuterodon iguape Eigenmann, 1907 has been widely used as live bait in Brazilian estuaries has a significant market and being a native animal to Brazil, it becomes a promising substitute. In order to analyze tolerance, the objective was to evaluate routine metabolism (oxygen consumption and ammonia excretion), hematological parameters (glucose, hemoglobin and total proteins), and histological parameters (gills and kidneys) of D. iguape after exposure to different salinities. The data were evaluated according to the means and standard deviations obtained by ANOVA (one-way) analysis followed by the Tukey post-test, after verification of the normal distributions (Kolmogorov-Smirnov test) and homoscedasticity (Levene test), p<0.05. In the higher salinities (12.5) tested, increased oxygen consumption, serum glucose, hemoglobin levels, decreased ammonia and total protein excretion were observed. It was concluded that 1 hour of exposure to different salinities, changes the metabolism of D. iguape, characterized by increased oxygen consumption and decreased ammonia excretion. Changes in hematological parameters (serum glucose, hemoglobin, and total protein) are also observed in groups exposed in the higher salinities (7.5, 10 and 12.5). Gill and kidney histological alterations were classified as mild to moderate, showing that D. iguape adapted well to the saline environment, which can make its use as live bait possible in estuarine sport fishing, preserving the natural stocks of Litopenaeus schimitti shrimp. (AU)

Processo FAPESP: 15/24742-1 - Utilização do Lambari Deuterodon Iguape como alternativa de isca-viva para a pesca esportiva estuarina
Beneficiário:Marcelo Barbosa Henriques
Linha de fomento: Auxílio à Pesquisa - Regular