Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea
The purpose of the research description of larvae Gymnophallus rebecqui (Bartoli, 1983) morphology from bivalve mollusks Abra segmentum Recluz, 1843 and Cerastoderma glaucum Poiret, 1789 in the Black Sea; to study seasonal abundance of G. rebecqui in the Black Sea.Materials and methods. During 2011–...
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| Format: | Article |
| Language: | Russian |
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Federal Scientific Centre VIEV
2019-10-01
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| Series: | Российский паразитологический журнал |
| Subjects: | |
| Online Access: | https://vniigis.elpub.ru/jour/article/view/510 |
| _version_ | 1797270506828726272 |
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| author | Yu. V. Belousova |
| author_facet | Yu. V. Belousova |
| author_sort | Yu. V. Belousova |
| collection | DOAJ |
| description | The purpose of the research description of larvae Gymnophallus rebecqui (Bartoli, 1983) morphology from bivalve mollusks Abra segmentum Recluz, 1843 and Cerastoderma glaucum Poiret, 1789 in the Black Sea; to study seasonal abundance of G. rebecqui in the Black Sea.Materials and methods. During 2011–2012 years, 875 samples of bivalves A. segmentum and 440 samples of C. glaucum were investigated from two biotopes Sevastopol water area. The samples were selected every month. All mollusks tissues were investigated for parasites with a compressor method over binocular at increase × 98. The detected cercarias and metacercarias were fixed for life and dyed with acetous carmine, and after dehydration in a series of alcohol and clarification in clove oil were placed in Canada balsam. One of the generally accepted systems of trematodes measuring was used in the work. Measurings were made on microscope XY-B2 with с a film camera at increase × 1000. The images were made in redactor of vector graphics Inkscape 0.48.2-1.Results and discussion. For the first time, at the estuary of the river Chernaya and in the Black Sea, larvae of trematodes G. rebecqui have been found in mollusks A. segmentum and C. glaucum. A. segmentum has appeared to be not only the second intermediate host for such trematode in the studied ecosystem but also parthenitas G. rebecqui were detected in it. According to the main diagnostic and morphological features, the analyzed larvae of trematodes were identified as G. rebecqui: the Y-shaped secretory cyst without diverticula in cercarias, and the absence of the ventral hole and of accumulation of prostatic cells over the ventral sucker at the metacercaria stage. The morphometric features of the cercarias and metacercarias of trematodes G. rebecqui, which were studied by us, are within the boundaries known for larvae of this type parasitizing in mollusks A. segmentum and C. glaucum off the coasts of France, Great Britain and the Black Sea. An infection peak of mollusks C. glaucum with metacercarias G. rebecqui was observed in late summer and early autumn in both regions. |
| first_indexed | 2024-03-08T21:41:22Z |
| format | Article |
| id | doaj.art-a7c2189aff18459a8659044eb8cc589d |
| institution | Directory Open Access Journal |
| issn | 1998-8435 2541-7843 |
| language | Russian |
| last_indexed | 2024-04-25T02:05:21Z |
| publishDate | 2019-10-01 |
| publisher | Federal Scientific Centre VIEV |
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| series | Российский паразитологический журнал |
| spelling | doaj.art-a7c2189aff18459a8659044eb8cc589d2024-03-07T14:34:29ZrusFederal Scientific Centre VIEVРоссийский паразитологический журнал1998-84352541-78432019-10-01133394610.31016/1998-8435-2019-13-3-39-46504Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of CrimeaYu. V. Belousova0A. O. Kovalevsky Institute of Marine Biological Researches of the Russian Academy of SciencesThe purpose of the research description of larvae Gymnophallus rebecqui (Bartoli, 1983) morphology from bivalve mollusks Abra segmentum Recluz, 1843 and Cerastoderma glaucum Poiret, 1789 in the Black Sea; to study seasonal abundance of G. rebecqui in the Black Sea.Materials and methods. During 2011–2012 years, 875 samples of bivalves A. segmentum and 440 samples of C. glaucum were investigated from two biotopes Sevastopol water area. The samples were selected every month. All mollusks tissues were investigated for parasites with a compressor method over binocular at increase × 98. The detected cercarias and metacercarias were fixed for life and dyed with acetous carmine, and after dehydration in a series of alcohol and clarification in clove oil were placed in Canada balsam. One of the generally accepted systems of trematodes measuring was used in the work. Measurings were made on microscope XY-B2 with с a film camera at increase × 1000. The images were made in redactor of vector graphics Inkscape 0.48.2-1.Results and discussion. For the first time, at the estuary of the river Chernaya and in the Black Sea, larvae of trematodes G. rebecqui have been found in mollusks A. segmentum and C. glaucum. A. segmentum has appeared to be not only the second intermediate host for such trematode in the studied ecosystem but also parthenitas G. rebecqui were detected in it. According to the main diagnostic and morphological features, the analyzed larvae of trematodes were identified as G. rebecqui: the Y-shaped secretory cyst without diverticula in cercarias, and the absence of the ventral hole and of accumulation of prostatic cells over the ventral sucker at the metacercaria stage. The morphometric features of the cercarias and metacercarias of trematodes G. rebecqui, which were studied by us, are within the boundaries known for larvae of this type parasitizing in mollusks A. segmentum and C. glaucum off the coasts of France, Great Britain and the Black Sea. An infection peak of mollusks C. glaucum with metacercarias G. rebecqui was observed in late summer and early autumn in both regions.https://vniigis.elpub.ru/jour/article/view/510trematodesgymnophallus rebecquicercariametacercariabivalveabra segmentumcerastoderma glaucumcrimea |
| spellingShingle | Yu. V. Belousova Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea Российский паразитологический журнал trematodes gymnophallus rebecqui cercaria metacercaria bivalve abra segmentum cerastoderma glaucum crimea |
| title | Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea |
| title_full | Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea |
| title_fullStr | Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea |
| title_full_unstemmed | Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea |
| title_short | Detection and Morphology of the Larval Stages of the Trematode Gymnophallus Rebecqui (Bartoli, 1983) (Trematoda: Gymnophallidae) in Bivalve Mollusks off the Black Sea Coast of Crimea |
| title_sort | detection and morphology of the larval stages of the trematode gymnophallus rebecqui bartoli 1983 trematoda gymnophallidae in bivalve mollusks off the black sea coast of crimea |
| topic | trematodes gymnophallus rebecqui cercaria metacercaria bivalve abra segmentum cerastoderma glaucum crimea |
| url | https://vniigis.elpub.ru/jour/article/view/510 |
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