horsehair worm


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horsehair worm

n.
Any of various long slender aquatic worms of the phylum Nematomorpha, the larvae of which are parasitic in arthropods. Also called hairworm.
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Horsehair worms (Phylum Nematomorpha) are most commonly encountered during their free-living adult phase, when they occur in a variety of freshwater habitats as elongate, slender, slow-moving worms (Poinar 2001, Smith 2001).
Horsehair worms as a group are widely distributed but understudied.
The purpose of this note is to report additional cases of predation by fish on horsehair worms.
Evidence for predation on horsehair worms was obtained opportunistically subsequent to fish collections by seining or angling.
Identification of horsehair worms to species can be difficult (Poinar 2001, Smith 2001).
We found horsehair worms in the digestive tracts of two fish species at seven locations in Missouri and Minnesota:
2) Horsehair worms were found in three of five brown trout (Satmo trutta) collected by angling on 20 June 1999 in Gilmore Creek on the St.
This sample of trout was collected approximately 2 km downstream from a site where a trout that contained horsehair worms was collected in 1995 (Cochran et al.
As in the present account, many previously reported cases of predation on horsehair worms involved fishes of the families Centrarchidae and Salmonidae (Cochran et al.