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USGS · 1014821

Growth, survival and food conversion of Atlantic salmon reared at four different densities with common water quality

R. W. Soderberg·J. W. Meade·Lori A. Redell
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Abstract

Our objective was to determine the maximum effective rearing density for Atlantic salmon ( Salmo salar ) at 17.5°C, a temperature typically used in hatcheries to accelerate growth. We reared 5.8‐g (mean weight) parr for 80 d to final rearing densities of 14–55 kg/m 2 (rearing unit bottom area) or 80–310 kg/m 3 (rearing unit volume). Weight gain was slightly depressed in fish at a final rearing density of 26 kg/m 2 (146 kg/m 3 ), but mortality, food conversion, and gain in length were not affected. At densities greater than 26 kg/m 2 , fish growth was slower and food conversion was higher, but mortality was unaffected. Atlantic salmon may be reared at 17.5°C to densities of at least 14 kg/m 2 (80 kg/m 3 ) without adverse effects on growth and health, but final rearing densities should not exceed 26 kg/m 2 .

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BibTeXRIS

R. W. Soderberg, J. W. Meade, Lori A. Redell. 1993. Growth, survival and food conversion of Atlantic salmon reared at four different densities with common water quality. https://doi.org/10.1577/1548-8640(1993)055%253c0029%3Agsafco%253e2.3.co%3B2

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