ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS
Hepatic microsporidia were investigated from 5 species of fish, namely Taurulus bubalis (Euphr.), Crenilabrus melops, (L.), Gaidropsarus mediterraneus (L.), Ciliata mustela (L.). and Scophthalmus maximus (L.) and intramuscular microsporidia from 2 species, namely Taurulus bubalis and Cottus gobio L....
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University of Plymouth
1985
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/2489 2024-04-21T08:11:04+00:00 ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS STUBBS, JULIET ANNE School of Biological and Marine Sciences 1985 application/pdf http://hdl.handle.net/10026.1/2489 https://doi.org/10.24382/4487 en eng University of Plymouth NOT AVAILABLE http://hdl.handle.net/10026.1/2489 http://dx.doi.org/10.24382/4487 Thesis 1985 ftunivplympearl https://doi.org/10.24382/4487 2024-03-27T18:00:32Z Hepatic microsporidia were investigated from 5 species of fish, namely Taurulus bubalis (Euphr.), Crenilabrus melops, (L.), Gaidropsarus mediterraneus (L.), Ciliata mustela (L.). and Scophthalmus maximus (L.) and intramuscular microsporidia from 2 species, namely Taurulus bubalis and Cottus gobio L. Detailed ultrastructural studies carried out on hepatic microsporidia from T. bubalis showed it to be a new species belonging to the genus Microgemma (Ralphs) and it is named here as Microgemma dunkerli sp. n. Although hepatic microsporidia from the other species of fish are included in Microgemma, insufficient data was available to determine whether these were synonomous with M. dunkerli or a separate species. Intramuscular microsporidia were identified as Pleistohora sp. and Pleistophora vermiformis (Leger) from T. bubalis and C. gobio respectively. Unsuccessful attempts were made to experimentally transmit spores by per os and intraperitoneal injection using a variety of experimental hosts. Viability studies indicated that spores survive for at least one month under controlled conditions. A detailed study of host/parasite relations was carried out at Portwrinkle and comparisons made with populations from Roscoff, Wembury, Widemouth and Aberystwyth. Prevalence and intensity of hepatic microsporidiosis in T. bubalis decreased markedly northwards probably due to temperature. Overall infection levels were at their highest in late summer and autumn, 'O' group fish being the most severely affected. The main ecological events of the life cycle of Microgemma dunkerli are presented in the form of a flow diagram. It is hoped that this work will form the basis for an epidemiological model. Thesis Scophthalmus maximus PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
description |
Hepatic microsporidia were investigated from 5 species of fish, namely Taurulus bubalis (Euphr.), Crenilabrus melops, (L.), Gaidropsarus mediterraneus (L.), Ciliata mustela (L.). and Scophthalmus maximus (L.) and intramuscular microsporidia from 2 species, namely Taurulus bubalis and Cottus gobio L. Detailed ultrastructural studies carried out on hepatic microsporidia from T. bubalis showed it to be a new species belonging to the genus Microgemma (Ralphs) and it is named here as Microgemma dunkerli sp. n. Although hepatic microsporidia from the other species of fish are included in Microgemma, insufficient data was available to determine whether these were synonomous with M. dunkerli or a separate species. Intramuscular microsporidia were identified as Pleistohora sp. and Pleistophora vermiformis (Leger) from T. bubalis and C. gobio respectively. Unsuccessful attempts were made to experimentally transmit spores by per os and intraperitoneal injection using a variety of experimental hosts. Viability studies indicated that spores survive for at least one month under controlled conditions. A detailed study of host/parasite relations was carried out at Portwrinkle and comparisons made with populations from Roscoff, Wembury, Widemouth and Aberystwyth. Prevalence and intensity of hepatic microsporidiosis in T. bubalis decreased markedly northwards probably due to temperature. Overall infection levels were at their highest in late summer and autumn, 'O' group fish being the most severely affected. The main ecological events of the life cycle of Microgemma dunkerli are presented in the form of a flow diagram. It is hoped that this work will form the basis for an epidemiological model. |
author2 |
School of Biological and Marine Sciences |
format |
Thesis |
author |
STUBBS, JULIET ANNE |
spellingShingle |
STUBBS, JULIET ANNE ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
author_facet |
STUBBS, JULIET ANNE |
author_sort |
STUBBS, JULIET ANNE |
title |
ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
title_short |
ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
title_full |
ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
title_fullStr |
ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
title_full_unstemmed |
ECOLOGICAL ASPECTS OF HEPATIC MICROSPORIDIOSIS IN COASTAL WATERS WITH PARTICULAR REFERENCE TO THE HOST TAURULUS BUBALIS |
title_sort |
ecological aspects of hepatic microsporidiosis in coastal waters with particular reference to the host taurulus bubalis |
publisher |
University of Plymouth |
publishDate |
1985 |
url |
http://hdl.handle.net/10026.1/2489 https://doi.org/10.24382/4487 |
genre |
Scophthalmus maximus |
genre_facet |
Scophthalmus maximus |
op_relation |
NOT AVAILABLE http://hdl.handle.net/10026.1/2489 http://dx.doi.org/10.24382/4487 |
op_doi |
https://doi.org/10.24382/4487 |
_version_ |
1796952703009554432 |