The Susceptibility of Salmonid Fish to Poisons Under Estuarine Conditions (Herbert & Wakeford, 1964 to 1965)
Two experimental studies comparing the susceptibility of Atlantic salmon smolts and yearling rainbow trout to zinc sulphate and ammonium chloride across varying salinity levels from fresh water to full-strength sea water. Results show resistance to both poisons increases with salinity up to 30–40% sea water, with salmon smolts consistently more susceptible than trout, and tolerance differences attributable to gill permeability and osmotic effects.
- Date
- Document type
- Report
- Parties
- D. W. M. Herbert, A. C. Wakeford, D. S. Shurben, Water Pollution Research Laboratory, North of Scotland Hydro-electric Board, Department of Scientific and Industrial Research
- Locations
- Stevenage, Herts, Dovercourt, Harwich, estuaries, fresh water, sea water
- Parameters
- zinc sulphate toxicity, ammonium chloride toxicity, salinity, pH, water hardness, alkalinity, temperature, fish survival, median lethal concentration (TLm), gill epithelium damage, osmotic pressure, mercury chloride, cadmium, suspended zinc salts
- Pages
- 9
Original document
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