Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Juell, Jon-Erik"
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Hydroacoustic detection of food waste - a method to estimate maximum food intake of fish populations in sea cages
Juell, Jon-Erik (ICES CM Documents;1990/F:7, Working paper, 1990)A linear relationship between echo energy and amount of salmon dry food was established. Measurements were carried out both for food batches (5-400 gram) and single pellets. For a certain amount of food, the echo energy ...