Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-3-25
pubmed:abstractText
The pathogenicity of female Philometra obturans (Prenant, 1886) was investigated. Fish samples were taken in May and June 2001 from Lake Littoistenjärvi, in southwest Finland. The intensity of infection varied between 1 and 4 worms, these being found in the afferent artery of the 2 outermost gill arches. The prevalence was 33.9% (n = 59). Host condition and tissue reactions were investigated through dissection and analysis of histopathology. The parasites obstructed the gill arteries, and the arterial wall was stretched around intact worms. Hypertrophy of the arterial wall was observed, especially when only disintegrating remains of the parasites were present. Infected pike were in a poorer condition after catch, transportation, and holding in aquaria and thus less tolerant to stress than uninfected pike. This was correlated with the number of infected gill arteries (P < 0.05). The results show that infection with this nematode has a detrimental effect on the host when combined with environmental or physiological stress and may result in host mortality.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-3395
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
177-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Pathogenicity of the gill artery worm Philometra obturans (Nematoda) in northern pike (Esox lucius) in southwest Finland.
pubmed:affiliation
Department of Biology, Abo Akademi University, Artillerig. 6, BioCity, FIN-20520 Abo, Finland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't