Host-Parasite Interactions in Some Fish Species

Table 1

Abundance (𝑥  ± s.e.) and prevalence (%) of the copepod, Lernaeocera branchialis, on the gills of the rock cod, Gadus ogac, sampled in Labrador in 1976 and 1986.

Year	Fish length (cm class)	No. infected/; no. examined	𝑥  ± s.e.	%
1976	21–30	9/17	1.8 ± 0.2	53
	31–40	6/12	2.1 ± 0.2	50
	41–50	21/21	3.3 ± 0.4	100
	51–60	24/24	3.1 ± 0.3	100
1986	31–40	2/3	3.5 ± 0.5	67
	41–50	4/4	3.1 ± 0.4	100
	51–60	3/3	3.0 ± 0.4	100