Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River
During 1996 and 1997, 112 rainbow trout Oncorhynchus mykiss and 204 brown trout Salmo trutta, all young of the year, were sampled from a 40‐km study area of the upper Colorado River and were examined for gill parasites. Ambiphrya, Chilodonella, Ichthyobodo, Apiosoma, Trichodina, Trichodinella, Tripa...
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| Veröffentlicht in: | Journal of aquatic animal health 1999-06, Vol.11 (2), p.170-174 |
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| creator | Schisler, George J. Walker, Peter G. Chittum, Linda A. Bergersen, Eric P. |
| description | During 1996 and 1997, 112 rainbow trout Oncorhynchus mykiss and 204 brown trout Salmo trutta, all young of the year, were sampled from a 40‐km study area of the upper Colorado River and were examined for gill parasites. Ambiphrya, Chilodonella, Ichthyobodo, Apiosoma, Trichodina, Trichodinella, Tripartiella, Epistylis, and an unidentified cochliopodid amoeba were the representative protozoan genera observed on fish examined. Significant month–year–species interactions (P = 0.0295) were revealed, reflecting the changes in infestation prevalence among months, years, and species of salmonid. Greater ectoparasite richness was observed in downstream sections of the study area, most notably near Hot Sulphur Springs, Colorado. Peaks of infestation intensity and ectoparasite richness occurred in August and September of both years, presumably because of high mean water temperatures and low flows during that time. |
| doi_str_mv | 10.1577/1548-8667(1999)011<0170:GEOJRT>2.0.CO;2 |
| format | Article |
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Ambiphrya, Chilodonella, Ichthyobodo, Apiosoma, Trichodina, Trichodinella, Tripartiella, Epistylis, and an unidentified cochliopodid amoeba were the representative protozoan genera observed on fish examined. Significant month–year–species interactions (P = 0.0295) were revealed, reflecting the changes in infestation prevalence among months, years, and species of salmonid. Greater ectoparasite richness was observed in downstream sections of the study area, most notably near Hot Sulphur Springs, Colorado. Peaks of infestation intensity and ectoparasite richness occurred in August and September of both years, presumably because of high mean water temperatures and low flows during that time.</description><identifier>ISSN: 0899-7659</identifier><identifier>EISSN: 1548-8667</identifier><identifier>DOI: 10.1577/1548-8667(1999)011<0170:GEOJRT>2.0.CO;2</identifier><language>eng</language><publisher>Taylor & Francis Group</publisher><subject>Ambiphrya ; Apiosoma ; Chilodonella ; Epistylis ; Freshwater ; Ichthyobodo ; Oncorhynchus mykiss ; Salmo trutta ; Trichodina ; Trichodinella ; Tripartiella</subject><ispartof>Journal of aquatic animal health, 1999-06, Vol.11 (2), p.170-174</ispartof><rights>1999 American Fisheries Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c4150-8fb865aed380c4d743c973a3f0ac1f4ba763a7a7e41cceff49ed30ebf54620683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1577%2F1548-8667%281999%29011%3C0170%3AGEOJRT%3E2.0.CO%3B2$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1577%2F1548-8667%281999%29011%3C0170%3AGEOJRT%3E2.0.CO%3B2$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Schisler, George J.</creatorcontrib><creatorcontrib>Walker, Peter G.</creatorcontrib><creatorcontrib>Chittum, Linda A.</creatorcontrib><creatorcontrib>Bergersen, Eric P.</creatorcontrib><title>Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River</title><title>Journal of aquatic animal health</title><description>During 1996 and 1997, 112 rainbow trout Oncorhynchus mykiss and 204 brown trout Salmo trutta, all young of the year, were sampled from a 40‐km study area of the upper Colorado River and were examined for gill parasites. Ambiphrya, Chilodonella, Ichthyobodo, Apiosoma, Trichodina, Trichodinella, Tripartiella, Epistylis, and an unidentified cochliopodid amoeba were the representative protozoan genera observed on fish examined. Significant month–year–species interactions (P = 0.0295) were revealed, reflecting the changes in infestation prevalence among months, years, and species of salmonid. Greater ectoparasite richness was observed in downstream sections of the study area, most notably near Hot Sulphur Springs, Colorado. Peaks of infestation intensity and ectoparasite richness occurred in August and September of both years, presumably because of high mean water temperatures and low flows during that time.</description><subject>Ambiphrya</subject><subject>Apiosoma</subject><subject>Chilodonella</subject><subject>Epistylis</subject><subject>Freshwater</subject><subject>Ichthyobodo</subject><subject>Oncorhynchus mykiss</subject><subject>Salmo trutta</subject><subject>Trichodina</subject><subject>Trichodinella</subject><subject>Tripartiella</subject><issn>0899-7659</issn><issn>1548-8667</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqdkU1LwzAch4MoOKffISdfDt2SNk0aFWGWuTkGg7GBt5CmCVa6pibdxr69LRsePXgK__DwHH4PAEOMBjhmbIhjkgQJpewec84fEMbPCDP0OBkvZsvVSzhAg3TxFJ6B3i95Dnoo4TxgNOaX4Mr7L4QwwRj3wMekKEs4Vo2tpZO-aLSH1sDZdqerotRwKYsqs3u4cnbbQFnl8NXZfXW6iwo2nxqu61o7mNrSOplbuCx22l2DCyNLr29Obx-s38ardBrMF5P3dDQPFMExChKTJTSWOo8SpEjOSKQ4i2RkkFTYkEwyGkkmmSZYKW0M4S2KdGZiQkNEk6gP7o7e2tnvrfaN2BRe6bKUlbZbLxLGCeXtCC15-yeJWRQTRHkLTo6gctZ7p42oXbGR7iAwEl0D0S0rumVF10C0DUTXQBwbiFAgkS5E2JrmR9O-3fLwX40Yjabdf_QDBMmUKw</recordid><startdate>199906</startdate><enddate>199906</enddate><creator>Schisler, George J.</creator><creator>Walker, Peter G.</creator><creator>Chittum, Linda A.</creator><creator>Bergersen, Eric P.</creator><general>Taylor & Francis Group</general><scope>AAYXX</scope><scope>CITATION</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>199906</creationdate><title>Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River</title><author>Schisler, George J. ; Walker, Peter G. ; Chittum, Linda A. ; Bergersen, Eric P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4150-8fb865aed380c4d743c973a3f0ac1f4ba763a7a7e41cceff49ed30ebf54620683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Ambiphrya</topic><topic>Apiosoma</topic><topic>Chilodonella</topic><topic>Epistylis</topic><topic>Freshwater</topic><topic>Ichthyobodo</topic><topic>Oncorhynchus mykiss</topic><topic>Salmo trutta</topic><topic>Trichodina</topic><topic>Trichodinella</topic><topic>Tripartiella</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schisler, George J.</creatorcontrib><creatorcontrib>Walker, Peter G.</creatorcontrib><creatorcontrib>Chittum, Linda A.</creatorcontrib><creatorcontrib>Bergersen, Eric P.</creatorcontrib><collection>CrossRef</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of aquatic animal health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schisler, George J.</au><au>Walker, Peter G.</au><au>Chittum, Linda A.</au><au>Bergersen, Eric P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River</atitle><jtitle>Journal of aquatic animal health</jtitle><date>1999-06</date><risdate>1999</risdate><volume>11</volume><issue>2</issue><spage>170</spage><epage>174</epage><pages>170-174</pages><issn>0899-7659</issn><eissn>1548-8667</eissn><abstract>During 1996 and 1997, 112 rainbow trout Oncorhynchus mykiss and 204 brown trout Salmo trutta, all young of the year, were sampled from a 40‐km study area of the upper Colorado River and were examined for gill parasites. Ambiphrya, Chilodonella, Ichthyobodo, Apiosoma, Trichodina, Trichodinella, Tripartiella, Epistylis, and an unidentified cochliopodid amoeba were the representative protozoan genera observed on fish examined. Significant month–year–species interactions (P = 0.0295) were revealed, reflecting the changes in infestation prevalence among months, years, and species of salmonid. Greater ectoparasite richness was observed in downstream sections of the study area, most notably near Hot Sulphur Springs, Colorado. Peaks of infestation intensity and ectoparasite richness occurred in August and September of both years, presumably because of high mean water temperatures and low flows during that time.</abstract><pub>Taylor & Francis Group</pub><doi>10.1577/1548-8667(1999)011<0170:GEOJRT>2.0.CO;2</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 0899-7659 |
| ispartof | Journal of aquatic animal health, 1999-06, Vol.11 (2), p.170-174 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Ambiphrya Apiosoma Chilodonella Epistylis Freshwater Ichthyobodo Oncorhynchus mykiss Salmo trutta Trichodina Trichodinella Tripartiella |
| title | Gill Ectoparasites of Juvenile Rainbow Trout and Brown Trout in the Upper Colorado River |
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