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Fig. 1. Acute effect of phenylhydrazine hydrochloride injections on haematocrit
(Hct), cardiac output (
) and
haemoglobin concentrations ([Hb]) in cold-acclimated rainbow trout. Each line
and matched symbol represent data for an individual rainbow trout
(N=5). Data were collected for up to a 5-day period following
injection of phenylhydrazine hydrochloride.