Journal
AQUACULTURE RESEARCH
Volume 31, Issue 11, Pages 805-814Publisher
BLACKWELL SCIENCE LTD
DOI: 10.1046/j.1365-2109.2000.00512.x
Keywords
louse origin; lifetime fecundity; egg size; egg quality
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Egg strings of salmon lice, Lepeophtheirus salmonis (Kroyer 1837), collected from farmed and wild Atlantic salmon had similar length and number of eggs string(-1). Egg production was investigated at water temperatures from 7.1 degreesC to 12.2 degreesC. A regression model indicated that at low temperatures egg strings were longer and had more eggs. Mean length of single eggs was significantly smaller and the percentage of non-viable eggs in the strings was higher at 7.1 degreesC than at 12.2 degreesC. Adult females survived for up to 191 days at 7.2 degreesC, and during this period 11 pairs of egg strings were produced.
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