First Report of a Sea Louse, Lepeophtheirus salmonis , Infestation on Juvenile Pink Salmon, Oncorhynchus gorbuscha , in Nearshore Habitat

摘要: High infestation rates of the Sea Louse ( Lepeophtheirus salmonis ) have been reported on juvenile salmonids in Europe since 1989; however, this species has not Pacific until now. Magnitude Lice was examined 2001 Pink Salmon Oncorhynchus gorbuscha migrating through a British Columbia archipelago. On average, 751 sampled weighed 2.25 g (± 0.039 SE), were infected with 11.3 0.41 SE) per fish and 6.1 0.24SE) gram host weight. Fully 75.0% at loads equivalent to or higher than lethal limit for much larger Trout Salmo trutta post-smolts. Abundance (Kruskal-Wallis statistic = 100.95, p<0.0001) intensity (KW= 70.05, lice, mean number lice/g weight (K-W= 112.23, significantly close proximity salmon farms, distant from farms.