Population Biology of Allocreadium lobatum Wallin, 1909 (Digenea: Allocreadiidae) in the Creek Chub, Semotilus atromaculatus, Mitchill (Osteichthyes: Cyprinadae), in a Nebraska Creek, USA

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Abstract

Allocreadium lobatum Wallin, 1909 has been reported in cyprinid species of freshwater fish in Canada and in the United States. The population biology of A. lobatum in the host Semotilus atromaculatus Mitchill was studied from May through December 1991, in a USA creek. Overall prevalence (64%) and mean intensity (4.4 ± 0.4) were greater than previously reported while abundance, reported for the first time, was 2.8 ± 0.3. Several trends in A. lobatum population biology as a function of S. atromaculatus length were identified. Mean intensity and abundance of A. lobatum increased with host size and significant differences in prevalence and A. lobatum lengths were found to correlate with host lengths.

Original languageEnglish (US)
Pages (from-to)331-338
Number of pages8
JournalMemorias do Instituto Oswaldo Cruz
Volume96
Issue number3
DOIs
StatePublished - Apr 2001
Externally publishedYes

Keywords

  • Allocreadium lobatum
  • Cyprinidae
  • Digenea
  • Population biology
  • Semotilus atromaculatus

ASJC Scopus subject areas

  • Microbiology (medical)

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