Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe
Echinorhynchus truttae and the E. bothniensis species complex are common parasites of salmoniform and other fishes in northern Europe. E. bothniensis and its sibling species E. 'bothniensis' are thought to be closely related to the Nearctic E. leidyi Van Cleave, 1924 based on morphological...
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Pensoft Publishers
2013-09-01
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| Series: | Biodiversity Data Journal |
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| Online Access: | http://bdj.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=975 |
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| author | Matthew Wayland |
| author_facet | Matthew Wayland |
| author_sort | Matthew Wayland |
| collection | DOAJ |
| description | Echinorhynchus truttae and the E. bothniensis species complex are common parasites of salmoniform and other fishes in northern Europe. E. bothniensis and its sibling species E. 'bothniensis' are thought to be closely related to the Nearctic E. leidyi Van Cleave, 1924 based on morphological similarity and common usage of a mysid intermediate host. This study provides the first analysis of morphological and meristic variation in E. truttae and expands our knowledge of anatomical variability in the E. bothniensis group. Morphological variability in E. truttae was found to be far greater than previously reported, with part of the variance attributable to sexual dimorphism. E. truttae, the two species of the E. bothniensis group and E. leidyi displayed considerable interspecific overlap in the ranges of all conventional morphological characters. However, Proboscis profiler, a tool for detecting acanthocephalan morphotypes using multivariate analysis of hook morphometrics, successfully separated E. truttae from the other taxa. The E. bothniensis species group could not be reliably distinguished from E. leidyi (or each other), providing further evidence of the affinity of these taxa. Observations on the distribution of E. truttae in its definitive host population are also reported. |
| first_indexed | 2024-12-18T08:20:14Z |
| format | Article |
| id | doaj.art-94843d56b4fc47339e1a3694e582c55f |
| institution | Directory Open Access Journal |
| issn | 1314-2836 1314-2828 |
| language | English |
| last_indexed | 2024-12-18T08:20:14Z |
| publishDate | 2013-09-01 |
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| record_format | Article |
| series | Biodiversity Data Journal |
| spelling | doaj.art-94843d56b4fc47339e1a3694e582c55f2022-12-21T21:14:46ZengPensoft PublishersBiodiversity Data Journal1314-28361314-28282013-09-01113410.3897/BDJ.1.e975975Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern EuropeMatthew WaylandEchinorhynchus truttae and the E. bothniensis species complex are common parasites of salmoniform and other fishes in northern Europe. E. bothniensis and its sibling species E. 'bothniensis' are thought to be closely related to the Nearctic E. leidyi Van Cleave, 1924 based on morphological similarity and common usage of a mysid intermediate host. This study provides the first analysis of morphological and meristic variation in E. truttae and expands our knowledge of anatomical variability in the E. bothniensis group. Morphological variability in E. truttae was found to be far greater than previously reported, with part of the variance attributable to sexual dimorphism. E. truttae, the two species of the E. bothniensis group and E. leidyi displayed considerable interspecific overlap in the ranges of all conventional morphological characters. However, Proboscis profiler, a tool for detecting acanthocephalan morphotypes using multivariate analysis of hook morphometrics, successfully separated E. truttae from the other taxa. The E. bothniensis species group could not be reliably distinguished from E. leidyi (or each other), providing further evidence of the affinity of these taxa. Observations on the distribution of E. truttae in its definitive host population are also reported.http://bdj.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=975Acanthocephala<i>Echinorhynchus truttae</i><i>Echinorhynchus bothniensis</i><i>Echinorhynchus leidyi</i>cryptic speciationsibling speciesmorphologymorphometricmeristicdescriptionProboscis Profileroverdispersionparasitesalmoniform |
| spellingShingle | Matthew Wayland Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe Biodiversity Data Journal Acanthocephala <i>Echinorhynchus truttae</i> <i>Echinorhynchus bothniensis</i> <i>Echinorhynchus leidyi</i> cryptic speciation sibling species morphology morphometric meristic description Proboscis Profiler overdispersion parasite salmoniform |
| title | Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe |
| title_full | Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe |
| title_fullStr | Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe |
| title_full_unstemmed | Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe |
| title_short | Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe |
| title_sort | morphological variation in echinorhynchus truttae schrank 1788 and the e bothniensis zdzitowiecki amp valtonen 1987 species complex from freshwater fishes of northern europe |
| topic | Acanthocephala <i>Echinorhynchus truttae</i> <i>Echinorhynchus bothniensis</i> <i>Echinorhynchus leidyi</i> cryptic speciation sibling species morphology morphometric meristic description Proboscis Profiler overdispersion parasite salmoniform |
| url | http://bdj.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=975 |
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