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dc.contributor.author
Liuzzi, Maria Gabriela
dc.contributor.author
López Gappa, Juan José
dc.date.available
2021-07-08T18:20:59Z
dc.date.issued
2008-02-21
dc.identifier.citation
Liuzzi, Maria Gabriela; López Gappa, Juan José; The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata; Springer; Hydrobiologia; 605; 1; 21-2-2008; 65-73
dc.identifier.issn
0018-8158
dc.identifier.uri
http://hdl.handle.net/11336/135743
dc.description.abstract
The cheilostome bryozoan Antarctothoa bougainvillei (d'Orbigny) is the most frequent epibiont on the ribbon-like red alga Hymenena laciniata (Hooker f. & Harvey) Kylin in San Sebastián Bay (Tierra del Fuego, Argentina). Twenty-one thalli and 1,484 colonies were examined to analyse the relationship between both species. In most cases, number and area of colonies did not differ significantly at both sides of the thallus. Ancestrulae (i.e., founder zooids originating colonies by asexual budding) were mostly oriented facing the algal growing edge. Colonies were more frequent on central than on marginal zones of the thalli. The population of A. bougainvillei was mainly composed of very small colonies (<10 mm2). Larger colonies predominated and intraspecific competition was more intense near the basal portions of the thalli. Fecundity (number of ovicells) increased at a significantly higher rate in colonies with margins obstructed by conspecific neighbours than in free-growing colonies. Colonies were significantly larger on somatic than on reproductive algal tissues. As total and reproductive surfaces covered by colonies of A. bougainvillei were on average very low (4.43% and 0.53%, respectively), this epibiont is not supposed to produce a negative effect on H. laciniata.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ANTARCTOTHOA BOUGAINVILLEI
dc.subject
ARGENTINA
dc.subject
BRYOZOA
dc.subject
EPIBIOSIS
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HYMENENA LACINIATA
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RHODOPHYTA
dc.subject.classification
Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-06-29T14:59:50Z
dc.journal.volume
605
dc.journal.number
1
dc.journal.pagination
65-73
dc.journal.pais
Alemania
dc.journal.ciudad
Dordrecht
dc.description.fil
Fil: Liuzzi, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: López Gappa, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.journal.title
Hydrobiologia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10750-008-9301-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s10750-008-9301-8
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