Diclybothrium atriatum n. sp. (Monogenea:Diclybothriidae) from North American acipenserid fishes with observations on Diclybothrium armatum and Diclybothrium hamulatum.
Identifieur interne : 001A30 ( Main/Merge ); précédent : 001A29; suivant : 001A31Diclybothrium atriatum n. sp. (Monogenea:Diclybothriidae) from North American acipenserid fishes with observations on Diclybothrium armatum and Diclybothrium hamulatum.
Auteurs : A. Choudhury [Canada] ; T A DickSource :
- The Journal of parasitology [ 0022-3395 ] ; 1996.
English descriptors
- KwdEn :
- MESH :
- geographic : Manitoba, Ontario, Wisconsin.
- anatomy & histology : Trematoda.
- classification : Trematoda.
- parasitology : Fish Diseases.
- pathology : Trematode Infections.
- veterinary : Trematode Infections.
- Animals, Female, Fishes, Fresh Water, Male.
Abstract
Diclybothrium atriatum n. sp. is described from North American acipenserid fishes, Acipenser fulvescens Rafinesque (lake sturgeon) and Acipenser brevirostrum Le Sueur (shortnose sturgeon). Diclybothrium atriatum is distinguished from other diclybothriids by the presence of a unique preovarial structure that we name the ventral atrial organ. This structure possesses a ventral orifice leading to a deep groove that widens internally as a crypt, bordered by densely staining granular bodies and more deeply situated glandular cells. Previous records of Diclybothrium armatum Leuckart, 1835 examined in this study from North American acipenserids are referable to D. atriatum. Studies on the anatomy of this and other species of Diclybothrium Leuckart, 1835, D. armatum and Diclybothrium hamulatum (Simer, 1929), reveal the presence of paired multichanelled sperm ducts that are shown to be characteristic of the Diclybothriidae Bykhovskii and Gusev, 1950. Paired sperm ducts, while common in Turbellaria with multiple testes, are unusual amongst Monogenea. The endemicity of Diclybothrium atriatum and specificity for A. fulvescens and A. brevirostrum suggests that speciation of this parasite may have occurred following the isolation of Acipenser L. spp. in central and eastern North America.
PubMed: 8973408
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Diclybothrium atriatum n. sp. (Monogenea:Diclybothriidae) from North American acipenserid fishes with observations on Diclybothrium armatum and Diclybothrium hamulatum.</title><author><name sortKey="Choudhury, A" sort="Choudhury, A" uniqKey="Choudhury A" first="A" last="Choudhury">A. Choudhury</name><affiliation wicri:level="4"><nlm:affiliation>Department of Zoology, University of Manitoba, Winnipeg, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Zoology, University of Manitoba, Winnipeg</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Dick, T A" sort="Dick, T A" uniqKey="Dick T" first="T A" last="Dick">T A Dick</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1996">1996</date><idno type="RBID">pubmed:8973408</idno><idno type="pmid">8973408</idno><idno type="wicri:Area/PubMed/Corpus">000678</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000678</idno><idno type="wicri:Area/PubMed/Curation">000678</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000678</idno><idno type="wicri:Area/PubMed/Checkpoint">000678</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000678</idno><idno type="wicri:Area/Ncbi/Merge">000884</idno><idno type="wicri:Area/Ncbi/Curation">000884</idno><idno type="wicri:Area/Ncbi/Checkpoint">000884</idno><idno type="wicri:doubleKey">0022-3395:1996:Choudhury A:diclybothrium:atriatum:n</idno><idno type="wicri:Area/Main/Merge">001A30</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Diclybothrium atriatum n. sp. (Monogenea:Diclybothriidae) from North American acipenserid fishes with observations on Diclybothrium armatum and Diclybothrium hamulatum.</title><author><name sortKey="Choudhury, A" sort="Choudhury, A" uniqKey="Choudhury A" first="A" last="Choudhury">A. Choudhury</name><affiliation wicri:level="4"><nlm:affiliation>Department of Zoology, University of Manitoba, Winnipeg, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Zoology, University of Manitoba, Winnipeg</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Dick, T A" sort="Dick, T A" uniqKey="Dick T" first="T A" last="Dick">T A Dick</name></author></analytic><series><title level="j">The Journal of parasitology</title><idno type="ISSN">0022-3395</idno><imprint><date when="1996" type="published">1996</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Female</term><term>Fish Diseases (parasitology)</term><term>Fishes</term><term>Fresh Water</term><term>Male</term><term>Manitoba</term><term>Ontario</term><term>Trematoda (anatomy & histology)</term><term>Trematoda (classification)</term><term>Trematode Infections (pathology)</term><term>Trematode Infections (veterinary)</term><term>Wisconsin</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Manitoba</term><term>Ontario</term><term>Wisconsin</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Trematoda</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Trematoda</term></keywords><keywords scheme="MESH" qualifier="parasitology" xml:lang="en"><term>Fish Diseases</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Trematode Infections</term></keywords><keywords scheme="MESH" qualifier="veterinary" xml:lang="en"><term>Trematode Infections</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Female</term><term>Fishes</term><term>Fresh Water</term><term>Male</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Diclybothrium atriatum n. sp. is described from North American acipenserid fishes, Acipenser fulvescens Rafinesque (lake sturgeon) and Acipenser brevirostrum Le Sueur (shortnose sturgeon). Diclybothrium atriatum is distinguished from other diclybothriids by the presence of a unique preovarial structure that we name the ventral atrial organ. This structure possesses a ventral orifice leading to a deep groove that widens internally as a crypt, bordered by densely staining granular bodies and more deeply situated glandular cells. Previous records of Diclybothrium armatum Leuckart, 1835 examined in this study from North American acipenserids are referable to D. atriatum. Studies on the anatomy of this and other species of Diclybothrium Leuckart, 1835, D. armatum and Diclybothrium hamulatum (Simer, 1929), reveal the presence of paired multichanelled sperm ducts that are shown to be characteristic of the Diclybothriidae Bykhovskii and Gusev, 1950. Paired sperm ducts, while common in Turbellaria with multiple testes, are unusual amongst Monogenea. The endemicity of Diclybothrium atriatum and specificity for A. fulvescens and A. brevirostrum suggests that speciation of this parasite may have occurred following the isolation of Acipenser L. spp. in central and eastern North America.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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