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

被引：3
|
作者：
Willis, MS
机构：
[1] Univ Nebraska, Harold W Manter Lab, State Museum, Lincoln, NE 68588 USA
[2] Vet Adm Med Ctr, Res Serv 151, Omaha, NE 68105 USA
来源：
MEMORIAS DO INSTITUTO OSWALDO CRUZ | 2001年 / 96卷 / 03期
关键词：
population biology; Digenea; Allocreadium lobalum; Cyprinidae; Semotilus atromaculatus;
D O I：
10.1590/S0074-02762001000300008
中图分类号：
R38 [医学寄生虫学]; Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ; 100103 ;
摘要：
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.
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页码：331 / 338
页数：8
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