Fróðskaparrit - 01.01.2008, Síða 156

154
PARASITES OF THREE-SPINED STICKLEBACK, GASTEROSTEUS ACULEATUS L.
FROM FAROE ISLANDS
Fig. 2A Prevalence of
infection with the
ciliate Trichodina sp.in
sticklebacks from all
stations.
Intensity ofinfection with Trichodina sp. (skin only)
Fig. 2B Intensity of
infection with
Trichodina sp„ in
sticklebacks from all
stations.
infection correlates with a high number of
Trichodina sp. per fish (more than approx 15,
see Figs. 2A and 2B). Most fish were only in-
PREVALENCE OF INFECTION TRICHODINA
2002 2003 2004
Toftavatn 100 80,4 95,8
Skúvadalur 97,9 77,6 96,6
Klubbatjørn 92,1 12,96 51,7
Kaldbak 100 21,3 62,5
Kráargil 71,6 100 100
Rituvík 100 100 100
Table 2A Prevalence of infection with Trichodina
sp. (skin and gills).
fected on the "skin" (fins included). In 6 sarrv
ples (out of 18) both "skin" and gills (inside
the gill cavity) were infected. In one sample
INTENSITY OF INFECTION
TRICHODINA
2002 2003 2004
TO 24,3 6,5 21,0
SK 27,7 6,7 7,7
KL 13,1 3,6 1,9
KA 0 2,4 2,4
KR 3,6 35,5 24,98
Rl 16,8 30,1 28,9
Table 2B Intensity of infection with Trichodina sp.
(skin only).