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Table 3 Distribution of preadult Lepeophtheirus salmonis at 18 days post-infestation

From: Host gill attachment causes blood-feeding by the salmon louse (Lepeophtheirus salmonis) chalimus larvae and alters parasite development and transcriptome

Group of liceExperiment 1Experiment 2
AllBodyFinsGillsAllBodyFinsGills
Pad I of total68 (294)88 (228)49 (40)30 (26)66 (329)87 (206)63 (55)38 (62)
Female of pad I33 (102)30 (68)78 (31)8 (2)35 (115)30 (62)87 (48)0 (0)
Pad I on filament10 (29)5 (12)25 (10)27 (7)21 (69)6 (12)38 (21)58 (36)
Pad I with visible blood16 (48)13 (30)0 (0)69 (18)24 (80)13 (27)0 (0)85 (53)
Pad I on filament with visible blood in intestine1 (2)0 (0)0 (0)8 (2)9 (30)0 (0)0 (0)48 (30)
  1. Notes: Preadult (pad) I lice sampled from 10 and 9 fish (Experiment 1 and 2, respectively) were investigated in more detail. The percentage and absolute numbers (in parentheses) of pad I lice sampled from all body parts of the fish (all) and separated into different sampling places (body, fins, gills) are shown for Experiment 1 and 2. The table shows the overall percentage of pad I of all lice (pad I and chalimus II), what percentage of these were females, the percentage of pad I lice found on a filament, the percentage of lice with visible blood in the intestine as well as the percentage of pad I lice with both, blood filled intestine and a filament