Abundance and distribution of Salmincola edwardsii (Copepoda) on anadromous brook trout, Salvelinus fontinalis, (Mitchill) in the Moisie River system, Quebec

G. A. Black, Linn W Montgomery, F. G. Whoriskey

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Rivière à 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 Rivière 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 languageEnglish (US)
Pages (from-to)567-575
Number of pages9
JournalJournal of Fish Biology
Volume22
Issue number5
StatePublished - May 1983
Externally publishedYes

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Salvelinus fontinalis
Quebec
river system
tributary
Copepoda
rivers
fins
fish
river
mortality
sampling
brook
distribution
infection

ASJC Scopus subject areas

  • Aquatic Science

Cite this

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title = "Abundance and distribution of Salmincola edwardsii (Copepoda) on anadromous brook trout, Salvelinus fontinalis, (Mitchill) in the Moisie River system, Quebec",
abstract = "Rivi{\`e}re {\`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 Rivi{\`e}re {\`a} 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).",
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T1 - Abundance and distribution of Salmincola edwardsii (Copepoda) on anadromous brook trout, Salvelinus fontinalis, (Mitchill) in the Moisie River system, Quebec

AU - Black, G. A.

AU - Montgomery, Linn W

AU - Whoriskey, F. G.

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N2 - Rivière à 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 Rivière 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).

AB - Rivière à 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 Rivière 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).

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