Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism

Freshwater mussels (Unionoida) show great variability in shell morphology which can be associated with differences in habitat, sex and/or parasite infection. Three unionid mussel species, (Anodonta anatina, Unio pictorum and Unio tumidus) were collected from two sites Lake Saravesi, (Laukaa) and Lak...

Full description

Bibliographic Details
Main Author: Moteka, Ebenezar Njimerie
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Bio- ja ympäristötieteiden laitos, Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2015
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/45698
_version_ 1826225766922190848
author Moteka, Ebenezar Njimerie
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science University of Jyväskylä Jyväskylän yliopisto
author_facet Moteka, Ebenezar Njimerie Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science University of Jyväskylä Jyväskylän yliopisto Moteka, Ebenezar Njimerie Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science University of Jyväskylä Jyväskylän yliopisto
author_sort Moteka, Ebenezar Njimerie
datasource_str_mv jyx
description Freshwater mussels (Unionoida) show great variability in shell morphology which can be associated with differences in habitat, sex and/or parasite infection. Three unionid mussel species, (Anodonta anatina, Unio pictorum and Unio tumidus) were collected from two sites Lake Saravesi, (Laukaa) and Lake Kuivasjarvi, (Oulu), between May - October 2012. Intraspecific trends that were associated with the mussels’ sex and/or parasites infection were studied and observations were made on how sex and parasite infection could have a role in shells morphological characters/patterns. The study revealed a range of morphometric differences among and across populations, as well as, within and between species. The hypothesis that female growth would decrease relative to males at adult ages due to energetic cost of glochidium larvae production did not receive unequivocal support. In addition, the hypothesis of adult female shells being wider (more inflated) than that of males due to space requirements by carried glochidia was also supported only in A. anatina of Lake Kuivasjärvi but not in Lake Saravesi, or in other mussel species. Male A. anatina were higher than females in Lake Saravesi, but not in Lake Kuivasjärvi, or in other mussel species, except for U. pictorum, in which females were higher than males among the large individuals. Between species, A. anatina had the highest shell, followed by U. tumidus and U. pictorum, while U. tumidus had the widest shell, followed by U. pictorum and A. anatina. The hypothesis of trematode infected mussels being wider due to space requirements by growing parasites was supported partly: mussels infected by R. fennica were, indeed, wider than the uninfected individuals, but for mussels infected with R. campanula this pattern was not found. On the other hand, R. campanula–infected individuals were relatively longer (more elongated) than the uninfected mussels. This may indicate a parasite species specific interaction between parasitism and host mussel shell morphology.
first_indexed 2023-03-22T09:57:10Z
format Pro gradu
free_online_boolean 1
fullrecord [{"key": "dc.contributor.advisor", "value": "Taskinen, Jouni", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Mah Choo, Jocelyn Mah", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Moteka, Ebenezar Njimerie", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2015-04-22T14:43:44Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2015-04-22T14:43:44Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2015", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1472631", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/45698", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Freshwater mussels (Unionoida) show great variability in shell morphology which can be associated with differences in habitat, sex and/or parasite infection. Three unionid mussel species, (Anodonta anatina, Unio pictorum and Unio tumidus) were collected from two sites Lake Saravesi, (Laukaa) and Lake Kuivasjarvi, (Oulu), between May - October 2012. Intraspecific trends that were associated with the mussels\u2019 sex and/or parasites infection were studied and observations were made on how sex and parasite infection could have a role in shells morphological characters/patterns. The study revealed a range of morphometric differences among and across populations, as well as, within and between species. The hypothesis that female growth would decrease relative to males at adult ages due to energetic cost of glochidium larvae production did not receive unequivocal support. In addition, the hypothesis of adult female shells being wider (more inflated) than that of males due to space requirements by carried glochidia was also supported only in A. anatina of Lake Kuivasj\u00e4rvi but not in Lake Saravesi, or in other mussel species. Male A. anatina were higher than females in Lake Saravesi, but not in Lake Kuivasj\u00e4rvi, or in other mussel species, except for U. pictorum, in which females were higher than males among the large individuals. Between species, A. anatina had the highest shell, followed by U. tumidus and U. pictorum, while U. tumidus had the widest shell, followed by U. pictorum and A. anatina. The hypothesis of trematode infected mussels being wider due to space requirements by growing parasites was supported partly: mussels infected by R. fennica were, indeed, wider than the uninfected individuals, but for mussels infected with R. campanula this pattern was not found. On the other hand, R. campanula\u2013infected individuals were relatively longer (more elongated) than the uninfected mussels. This may indicate a parasite species specific interaction between parasitism and host mussel shell morphology.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Ebenezar Moteka (ebnjmote) on 2015-04-22 14:43:44.178483. Form: Master's Thesis publishing form (https://kirjasto.jyu.fi/publish-and-buy/publishing-forms/masters-thesis-publishing-form). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2015-04-22T14:43:44Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201504221650.pdf: 1221529 bytes, checksum: 6e249439c0b491820bfd6189b52c75c9 (MD5)\r\nlicense.html: 4521 bytes, checksum: 56d331c9b9c7092c497250be4da82ff2 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2015-04-22T14:43:44Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201504221650.pdf: 1221529 bytes, checksum: 6e249439c0b491820bfd6189b52c75c9 (MD5)\r\nlicense.html: 4521 bytes, checksum: 56d331c9b9c7092c497250be4da82ff2 (MD5)\r\n Previous issue date: 2015", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (36 sivua)", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "Anodonta anatina", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "morphology", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Rhipidocotyle campanula", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Rhipidocotyle fennica", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "trematode", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Unio pictorum", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Unio tumidus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201504221650", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Akvaattiset tieteet", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Aquatic sciences", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2015-04-22T14:43:45Z", "language": "", "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4012", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "simpukat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "j\u00e4rvisimpukka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "morfologia", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
id jyx.123456789_45698
language eng
last_indexed 2025-02-18T10:54:16Z
main_date 2015-01-01T00:00:00Z
main_date_str 2015
online_boolean 1
online_urls_str_mv {"url":"https:\/\/jyx.jyu.fi\/bitstreams\/00e6ae91-31d5-48ee-b021-79c2e51863f0\/download","text":"URN:NBN:fi:jyu-201504221650.pdf","source":"jyx","mediaType":"application\/pdf"}
publishDate 2015
record_format qdc
source_str_mv jyx
spellingShingle Moteka, Ebenezar Njimerie Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism Anodonta anatina morphology Rhipidocotyle campanula Rhipidocotyle fennica trematode Unio pictorum Unio tumidus Akvaattiset tieteet Aquatic sciences 4012 simpukat järvisimpukka morfologia
title Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
title_full Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
title_fullStr Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
title_full_unstemmed Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
title_short Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
title_sort shell morphology of the unionid mussels anodonta anatina unio pictorum and u tumidus in relation to gender and trematode parasitism
title_txtP Shell morphology of the unionid mussels (Anodonta anatina, Unio pictorum and U. tumidus) in relation to gender and trematode parasitism
topic Anodonta anatina morphology Rhipidocotyle campanula Rhipidocotyle fennica trematode Unio pictorum Unio tumidus Akvaattiset tieteet Aquatic sciences 4012 simpukat järvisimpukka morfologia
topic_facet 4012 Akvaattiset tieteet Anodonta anatina Aquatic sciences Rhipidocotyle campanula Rhipidocotyle fennica Unio pictorum Unio tumidus järvisimpukka morfologia morphology simpukat trematode
url https://jyx.jyu.fi/handle/123456789/45698 http://www.urn.fi/URN:NBN:fi:jyu-201504221650
work_keys_str_mv AT motekaebenezarnjimerie shellmorphologyoftheunionidmusselsanodontaanatinauniopictorumandutumidusi