Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.

13 páginas, 10 figuras, 2 tablas.

Detalles Bibliográficos
Autores: Britayev, Temir A., Martin, Daniel, Krylova, L. M., Von Cosel, R., Aksiuk, T. S.
Tipo de recurso: artículo
Fecha de publicación:2007
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::15a28c810242719fcf5b66c638a480f0
Acceso en línea:http://hdl.handle.net/10261/39381
Access Level:acceso abierto
Palabra clave:Host/symbiont interactions
Hydrothermal vents
Mytilidae
Polychaeta
Kleptoparasitic
Symbiosis
Polynoidae
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spelling Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.Britayev, Temir A.Martin, DanielKrylova, L. M.Von Cosel, R.Aksiuk, T. S.Host/symbiont interactionsHydrothermal ventsMytilidaePolychaetaKleptoparasiticSymbiosisPolynoidae13 páginas, 10 figuras, 2 tablas.Associations between scale-worms and giant mussels are common constituents of hydrothermal vent and cold seep ecosystems, but very little is known about their nature and ecology. Here, we analyze the ecological characteristics of the associations between Branchipolynoe seepensis, an obligate symbiotic polychaete, and their host mytilid mussels Bathymodiolus puteoserpentis and B. azoricus inhabiting hydrothermal vent fields on the Mid-Atlantic Ridge. Infested mussels generally harbored a single symbiont (<4% had two to six worms). Infestation rate varied from 7.2% to 76.5%, increasing with mussel size, and was significantly lower for B. puteoserpentis. Symbiont density at Lucky Strike ranged between 1071 and 1191 individuals m)2. Female symbiont size was always positively correlated with host size, while only males and juveniles from small mussels showed the same trend. This suggested a relatively long-lasting host/symbiont association for females and short-lasting association with successive reproductive migrations for adult males. The sex ratio of symbionts was always biased in favor of females. Males were smaller and more slender than females and had one mode in their size distributions, whereas females typically had three or more modes, suggestive of a longer life span in females. Between 59.1% and 72.2% of mussels had damaged soft tissues with substantially higher incidence of trauma in infested ones, suggesting that symbionts may cause trauma. The symbionts also induce tunnel-like structures among the ctenidia, indicating fidelity to a particular location inside the host. Based on our data, together with the fact that infested mussels became relatively wider than non-infested ones, this association is considered parasitic (likely kleptoparasitic). Our data, together with those from previous studies, allowed us to define the main life-history traits of B. seepensis: (i) the relationship with their host is parasitic, (ii) the association begins at the smallest mytilid size classes, (iii) there is sexual dimorphism in body size, (iv) sex ratio deviates from 1:1 in favor of females, (v) fertilization occurs through temporal pairing and pseudocopulation, (vi) sperm are stored by females, (vii) eggs are large (likely lecithotrophic or with direct development), (viii) females have a longer life span than males, (ix) adult males may be semalparous, undertaking reproductive migrations followed by a short period of pairing and then death, and (x) females have a semi-continuous iteroparous reproductive cycle.This study was supported by the Russian Foundation for Basic Research (project no. 05-04-48350)Peer reviewedBlackwell Publishing201120112007info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/39381reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1439-0485.2007.00152.xinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::15a28c810242719fcf5b66c638a480f02026-05-22T06:33:51Z
dc.title.none.fl_str_mv Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
title Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
spellingShingle Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
Britayev, Temir A.
Host/symbiont interactions
Hydrothermal vents
Mytilidae
Polychaeta
Kleptoparasitic
Symbiosis
Polynoidae
title_short Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
title_full Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
title_fullStr Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
title_full_unstemmed Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
title_sort Life-history traits of the symbiotic scale-worm Branchipolynoe seepensis and its relationships with host mussels of the genus Bathymodiolus from hydrothermal vents.
dc.creator.none.fl_str_mv Britayev, Temir A.
Martin, Daniel
Krylova, L. M.
Von Cosel, R.
Aksiuk, T. S.
author Britayev, Temir A.
author_facet Britayev, Temir A.
Martin, Daniel
Krylova, L. M.
Von Cosel, R.
Aksiuk, T. S.
author_role author
author2 Martin, Daniel
Krylova, L. M.
Von Cosel, R.
Aksiuk, T. S.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Host/symbiont interactions
Hydrothermal vents
Mytilidae
Polychaeta
Kleptoparasitic
Symbiosis
Polynoidae
topic Host/symbiont interactions
Hydrothermal vents
Mytilidae
Polychaeta
Kleptoparasitic
Symbiosis
Polynoidae
description 13 páginas, 10 figuras, 2 tablas.
publishDate 2007
dc.date.none.fl_str_mv 2007
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/39381
url http://hdl.handle.net/10261/39381
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1439-0485.2007.00152.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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