Amphibiocapillaria tritonispunctati (Nematoda: Trichuridae) infections in the red-spotted newt Notophthalmus v. viridescens from western West Virginia

A total of 124 (55 females and 69 males) adult red-spotted newts, Notophthalmus v. viridescens (Rafinesque), were collected from Wayne County, West Virginia, throughout 1995 and examined for Amphibiocapillaria tritonispunctati (Diesing, 1851) Moravec, in 1986. Prevalence was higher in female newts (...

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Bibliographic Details
Published in:The American midland naturalist 1997-10, Vol.138 (2), p.408-411
Main Authors: Joy, J.E. (Marshall University, Huntington, WV.), Scott, J.B
Format: Article
Language:English
Subjects:
Amphibians
Amphibiocapillaria tritonispunctati
Digestive system
Fish
Freshwater
Gastrointestinal tract
HOST PARASITE RELATIONS
INFECTIVITY
Large intestine
NEMATODA
Nematodes
Newts
Notes and Discussion
Notophthalmus viridescens
PARASITE
Parasite hosts
PARASITES
PARASITOS
PATHOGENICITY
PATOGENICIDAD
POUVOIR PATHOGENE
RELACIONES HUESPED PARASITO
RELATION HOTE PARASITE
Reptiles
Sex ratio
Small intestine
Wetland ecology
Worms
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Summary:A total of 124 (55 females and 69 males) adult red-spotted newts, Notophthalmus v. viridescens (Rafinesque), were collected from Wayne County, West Virginia, throughout 1995 and examined for Amphibiocapillaria tritonispunctati (Diesing, 1851) Moravec, in 1986. Prevalence was higher in female newts (65.5%) than males (52.2%), but the difference was not significant (X2= 1.705; P > 0.05). Prevalence was lowest (37.5%) in February/March and highest (90.0%) in October. Mean abundances of 2.0 and 1.7 were recorded for female and male newts, respectively. Sex ratios of A. tritonispunctati were female-biased (1.45:1), a ratio significantly different (X2= 7.14; P < 0.01) from the expected 1:1 ratio. A total of 230 nematodes were collected with 54%, 34%, 7%, and 3% found in the upper small intestine, mid-region of the small intestine, large intestine, and lower small intestine, respectively. This aggregation in the upper small intestine was highly significant (X2= 156.9; 3 df; P < 0.001).
ISSN:0003-0031
1938-4238
DOI:10.2307/2426832