Transport stress in matrinxa, Brycon cephalus (Teleostei : Characidae), at different densities


Autoria(s): Carneiro, PCF; Urbinati, Elisabeth Criscuolo
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2002

Resumo

Matrinxa, Brycon cephalus, is a native teleost fish from the Amazon Basin, and is of economic importance for cultivation for food and sport in Brazil. Mortality losses due to handling and transport of this stenohaline freshwater species are common. The effects of transportation at different densities on the biochemical stress responses of matrinxa (mean weight 1 kg) were examined. Fish were subjected to three different transport densities (100, 200, and 300 kg m(-3)) for four h in water with added salt (0.6%). The fish were bled at departure (baseline level), arrival (immediately after transportation) and at 24 and 96 h after arrival (recovery period). Blood glucose, cortisol, sodium, chloride, potassium and ammonia were used as stress bioindicators. No mortality was observed and no alterations in plasma cortisol were registered. However, blood glucose and ammonia levels increased and serum sodium and plasma chloride decreased on arrival for the fish transported at the highest densities. These stress responses were transient and the concentrations returned to baseline levels within 24 h. This study showed that matrinxa can be transported at densities as high as those tested in the present study, at least under the conditions employed in this study. A recovery period of at least 24 h is strongly recommended.

Formato

221-229

Identificador

http://dx.doi.org/10.1023/A:1022166411089

Aquaculture International. Dordrecht: Kluwer Academic Publ, v. 10, n. 3, p. 221-229, 2002.

0967-6120

http://hdl.handle.net/11449/459

10.1023/A:1022166411089

WOS:000180651400004

Idioma(s)

eng

Publicador

Kluwer Academic Publ

Relação

Aquaculture International

Direitos

closedAccess

Palavras-Chave #Brycon cephalus #density #matrinxa #stress #transport
Tipo

info:eu-repo/semantics/article