parasites of fish in the Holarctic Region
morphology Abstract. Two fish cestodes, the little-known Eubothrium fragile (Rudolphi, 1802) and E. rugosum (Batsch, 1786), the type species of the genus Eubothrium Nybelin, 1922, are redescribed on the basis of new material from twaite shad, Alosa fallax (Lacépède, 1803), from England and burbot, L...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.613.5352 2023-05-15T15:47:17+02:00 parasites of fish in the Holarctic Region Roman Kuchta Vladimíra Hanzelová Andy P. Shinn Larisa G. Poddubnaya Tomáš Scholz The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.5352 http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.5352 http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf text ftciteseerx 2016-01-08T14:37:46Z morphology Abstract. Two fish cestodes, the little-known Eubothrium fragile (Rudolphi, 1802) and E. rugosum (Batsch, 1786), the type species of the genus Eubothrium Nybelin, 1922, are redescribed on the basis of new material from twaite shad, Alosa fallax (Lacépède, 1803), from England and burbot, Lota lota (Linnaeus, 1758), from Russia, respectively. The tapeworms are compared with two other species of the genus, E. crassum (Bloch, 1779) and E. salvelini (Schrank, 1790), common parasites of salmonid fish in the Holarctic. The most notable differential characters are the size and the shape of the scolex (smaller and oval in E. frag-ile), the shape of the apical disc (four or more indentations in E. crassum), the number and size of the testes (the largest and least numerous in E. rugosum), and the position and size of the vitelline follicles (almost entirely cortical in distribution in E. fragile and E. crassum versus largely medullary in E. rugosum and E. salvelini). A comparison of species has also shown the morpho-logical similarity of the freshwater species (E. rugosum and E. salvelini) on one hand and those of marine origin, E. fragile and E. crassum, on the other, with the latter species occurring also in fresh waters. A key to the identification of the species studied is also provided. Cestodes of the genus Eubothrium Nybelin, 1922 are common parasites of marine and freshwater fishes with a circumpolar distribution. The genus contains 10 spe- Text Burbot Lota lota lota Unknown |
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morphology Abstract. Two fish cestodes, the little-known Eubothrium fragile (Rudolphi, 1802) and E. rugosum (Batsch, 1786), the type species of the genus Eubothrium Nybelin, 1922, are redescribed on the basis of new material from twaite shad, Alosa fallax (Lacépède, 1803), from England and burbot, Lota lota (Linnaeus, 1758), from Russia, respectively. The tapeworms are compared with two other species of the genus, E. crassum (Bloch, 1779) and E. salvelini (Schrank, 1790), common parasites of salmonid fish in the Holarctic. The most notable differential characters are the size and the shape of the scolex (smaller and oval in E. frag-ile), the shape of the apical disc (four or more indentations in E. crassum), the number and size of the testes (the largest and least numerous in E. rugosum), and the position and size of the vitelline follicles (almost entirely cortical in distribution in E. fragile and E. crassum versus largely medullary in E. rugosum and E. salvelini). A comparison of species has also shown the morpho-logical similarity of the freshwater species (E. rugosum and E. salvelini) on one hand and those of marine origin, E. fragile and E. crassum, on the other, with the latter species occurring also in fresh waters. A key to the identification of the species studied is also provided. Cestodes of the genus Eubothrium Nybelin, 1922 are common parasites of marine and freshwater fishes with a circumpolar distribution. The genus contains 10 spe- |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Roman Kuchta Vladimíra Hanzelová Andy P. Shinn Larisa G. Poddubnaya Tomáš Scholz |
spellingShingle |
Roman Kuchta Vladimíra Hanzelová Andy P. Shinn Larisa G. Poddubnaya Tomáš Scholz parasites of fish in the Holarctic Region |
author_facet |
Roman Kuchta Vladimíra Hanzelová Andy P. Shinn Larisa G. Poddubnaya Tomáš Scholz |
author_sort |
Roman Kuchta |
title |
parasites of fish in the Holarctic Region |
title_short |
parasites of fish in the Holarctic Region |
title_full |
parasites of fish in the Holarctic Region |
title_fullStr |
parasites of fish in the Holarctic Region |
title_full_unstemmed |
parasites of fish in the Holarctic Region |
title_sort |
parasites of fish in the holarctic region |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.5352 http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.5352 http://folia.paru.cas.cz/pdfs/fol/2005/02/08.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766382073401049088 |