首页> 外文期刊>Memorias do Instituto Oswaldo Cruz >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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Population Biology of Allocreadium lobatum Wallin, 1909 (Digenea: Allocreadiidae) in the Creek Chub, Semotilus atromaculatus, Mitchill (Osteichthyes: Cyprinadae), in a Nebraska Creek, USA

机译:1909年,美国内布拉斯加州克里克(Cemo)Chub,Semotilus atromaculatus,密歇根州(Osteichthyes:Cyprinadae)的小叶小球藻种群生物学(Digenea:Allocreadiidae)

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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.
机译:在加拿大和美国,淡水鱼的鲤科鱼类中已经报道了1909年的小球藻(Allocreadium lobatum Wallin)。 1991年5月至1991年12月,在美国一条小河中研究了寄主Strotilus atromaculatus Mitchill中的球状农杆菌的种群生物学。总体患病率(64%)和平均强度(4.4±0.4)均高于先前报道,而首次报道的丰度为2.8±0.3。鉴定了作为根瘤农杆菌长度的函数的球状农杆菌种群生物学的几种趋势。随着寄主大小的增加,圆叶曲霉的平均强度和丰度增加,并且患病率和圆叶曲霉长度的显着差异与寄主长度相关。

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