Riviere a la Truite, a tributary of the Moisie River, is probably a focus of Salmincola edwardsii transmission within the system. Differences in prevalence of the copepod on fish between Riviére à la Truite and the main river suggested that up to 41% of anadromous brook trout, Salvelinus fontinalis, in the Moisie River system overwinter in the tributary. Infected fish were generally less than 200 mm long and copepods were attached almost exclusively to the fins and their bases. The primary site of copepod attachment at low intensities of infection was the adipose fin but at high intensities the dorsal fin was most frequently infected. This displacement in attachment location with increased intensity may result in density‐dependent mortality of copepods. Copepods were overdispersed on the host population at each major sampling time and data fit a negative binomial distribution (k ranged from 0.2 to 0.8).
|Original language||English (US)|
|Number of pages||9|
|Journal||Journal of Fish Biology|
|State||Published - May 1983|
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Aquatic Science