The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata
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 relat...
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Language: | English |
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ftconicet:oai:ri.conicet.gov.ar:11336/135743 2023-10-09T21:47:13+02:00 The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata Liuzzi, Maria Gabriela López Gappa, Juan José application/pdf http://hdl.handle.net/11336/135743 eng eng Springer info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10750-008-9301-8 info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-008-9301-8 http://hdl.handle.net/11336/135743 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 0018-8158 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTOTHOA BOUGAINVILLEI ARGENTINA BRYOZOA EPIBIOSIS HYMENENA LACINIATA RHODOPHYTA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s10750-008-9301-8 2023-09-24T20:28:25Z 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. 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 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 Article in Journal/Newspaper Antarc* Tierra del Fuego CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Argentino Hooker ENVELOPE(-62.050,-62.050,-63.283,-63.283) Hydrobiologia 605 1 65 73 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTOTHOA BOUGAINVILLEI ARGENTINA BRYOZOA EPIBIOSIS HYMENENA LACINIATA RHODOPHYTA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTOTHOA BOUGAINVILLEI ARGENTINA BRYOZOA EPIBIOSIS HYMENENA LACINIATA RHODOPHYTA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Liuzzi, Maria Gabriela López Gappa, Juan José The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
topic_facet |
ANTARCTOTHOA BOUGAINVILLEI ARGENTINA BRYOZOA EPIBIOSIS HYMENENA LACINIATA RHODOPHYTA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
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. 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 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 |
format |
Article in Journal/Newspaper |
author |
Liuzzi, Maria Gabriela López Gappa, Juan José |
author_facet |
Liuzzi, Maria Gabriela López Gappa, Juan José |
author_sort |
Liuzzi, Maria Gabriela |
title |
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
title_short |
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
title_full |
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
title_fullStr |
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
title_full_unstemmed |
The distribution of colonies of the bryozoan Antarctothoa bougainvillei on the red alga Hymenena laciniata |
title_sort |
distribution of colonies of the bryozoan antarctothoa bougainvillei on the red alga hymenena laciniata |
publisher |
Springer |
url |
http://hdl.handle.net/11336/135743 |
long_lat |
ENVELOPE(-62.050,-62.050,-63.283,-63.283) |
geographic |
Argentina Argentino Hooker |
geographic_facet |
Argentina Argentino Hooker |
genre |
Antarc* Tierra del Fuego |
genre_facet |
Antarc* Tierra del Fuego |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10750-008-9301-8 info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-008-9301-8 http://hdl.handle.net/11336/135743 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 0018-8158 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s10750-008-9301-8 |
container_title |
Hydrobiologia |
container_volume |
605 |
container_issue |
1 |
container_start_page |
65 |
op_container_end_page |
73 |
_version_ |
1779310164336181248 |