Growth Stimulation and Biochemical Changes in Juvenile Coho Salmon (Oncorhynchus kisutch) Exposed to Bleached Kraft Pulpmill Effluent for 200 Days

作者: D. J. McLeay , D. A. Brown

DOI: 10.1139/F74-118

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摘要: Juvenile coho salmon were exposed for 200 days to neutralized, filtered bleached kraft mill effluent (BKME) at concentrations of 0.1 and 0.25 the samples' 96-h LC50 values. From 50 days, mean weights fish BKME significantly higher than control values; those in consistently but not weights. By weight receiving concentration was twice that controls. Length condition factor this group also increased. Growth results are considered terms BKME-induced behavioral changes, increased nutrient supply, salinity, hormetic effects, hormonal changes.Lactate levels elevated blood muscle fry only; serum pyruvate decreased either concentration. The lactic acid:pyruvic acid ratio both groups continuously BKME. ...

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