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Effects of cyclic and constant hydrostatic pressure on norepinephrine and epinephrine levels in the brain of flounder
Author(s) -
DamascenoOliveira A.,
FernándezDurán B.,
Gonçalves J.,
Serrão P.,
SoaresDaSilva P.,
ReisHenriques M. A.,
Coimbra J.
Publication year - 2006
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.0022-1112.2006.01015.x
Subject(s) - flounder , hydrostatic pressure , norepinephrine , hydrostatic equilibrium , epinephrine , platichthys , biology , medicine , endocrinology , constant (computer programming) , fish <actinopterygii> , zoology , fishery , thermodynamics , physics , dopamine , quantum mechanics , computer science , programming language
The effects of cyclic and constant hydrostatic pressure on the norepinephrine and epinephrine content in discrete regions of the brain of European flounder Platichthys flesus were studied. After a 14 day exposure to cyclic hydrostatic pressure with a tidal period of 12·4 h and with a maximum peak of 800 kPa (range 200–800 kPa of absolute hydrostatic pressure), fish showed a highly significant decrease in norepinephrine content when compared to control animals held at constant atmospheric pressure. No changes were detected in fish submitted to a constant hydrostatic pressure of 800 kPa.