Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)

Temporal and spatial changes in the coverage of five Ulva L. species (U. prolifera O.F. Müller, U. intestinalis L., U. hookeriana (Kützing) Hayden et al., U. compressa L. and U. linza L.) were analyzed on rocky substrata experimentally immersed in Comodoro Rivadavia Harbor (Argentina). Colonization...

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Detalles Bibliográficos
Autores: Rico, A, Lanas, Paola, López-Gappa, J
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:México
Institución:Universidad Autónoma de Baja California Sur
Repositorio:Repositorio Institucional de la UABCS
Idioma:inglés
OAI Identifier:oai:repositorioinstitucional.uabc.mx:20.500.12930/7314
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/37
https://hdl.handle.net/20.500.12930/7314
Access Level:acceso abierto
Palabra clave:Ulva
Chlorophyta
Comodoro Rivadavia Harbor
Patagonia
Argentina
puerto de Comodoro Rivadavia
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oai_identifier_str oai:repositorioinstitucional.uabc.mx:20.500.12930/7314
network_acronym_str MX
network_name_str México
spelling Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina) El potencial de colonización del género Ulva (Chlorophyta, Ulvales) en el puerto de Comodoro Rivadavia (Chubut, Argentina) Rico, A Lanas, Paola López-Gappa, J Ulva Chlorophyta Comodoro Rivadavia Harbor Patagonia Argentina puerto de Comodoro Rivadavia Temporal and spatial changes in the coverage of five Ulva L. species (U. prolifera O.F. Müller, U. intestinalis L., U. hookeriana (Kützing) Hayden et al., U. compressa L. and U. linza L.) were analyzed on rocky substrata experimentally immersed in Comodoro Rivadavia Harbor (Argentina). Colonization was studied during an annual period at three levels: upper intertidal, middle intertidal and subtidal. Coverage was significantly higher in the middle intertidal and subtidal levels than in the upper intertidal level, where all species of Ulva were absent. Seasonal changes were also significant: coverage in summer and spring was significantly higher than in autumn and winter. Most species showed high spatial variability among replicates from the same level and season. Zonation patterns within the harbor differed from those observed in natural areas, probably due to low wave exposure and its interaction with herbivory and desiccation stress. Colonization patterns observed in this study indicate nichesegregation in closely related species of the genus Ulva.  Se analizaron los cambios estacionales y espaciales en la cobertura de cinco especies de Ulva L. (U. prolifera O.F. Müller, U. intestinalis L., U. hookeriana (Kützing) Hayden et al., U. compressa L. y U. linza L.) sobre sustratos rocosos sumergidos experimentalmente en el puerto de Comodoro Rivadavia (Argentina). Se estudió la colonización durante un periodo anual en tres niveles: intermareal superior, intermareal medio y submareal. La cobertura fue significativamente mayor en los niveles intermareal medio y submareal que en el intermareal superior, en donde todas las especies de Ulva estuvieron ausentes. Los cambios estacionales también fueron significativos: la cobertura en verano y primavera fue significativamente mayor que en otoño e invierno. La mayoría de las especies presentaron una gran variabilidad espacial entre réplicas sumergidas en un mismo nivel y estación. Los patrones de zonación dentro del puerto difirieron de los observados en áreas naturales, probablemente a causa del bajo grado de exposición al oleaje y su interacción con procesos de herbivoría y desecación. Los patrones de colonización observados en este estudio indican segregación de nicho en especies estrechamente emparentadas del género Ulva. Iniversidad Autónoma de Baja California https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/37 10.7773/cm.v31i4.37 https://hdl.handle.net/20.500.12930/7314
title Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
spellingShingle Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
Rico, A
Ulva
Chlorophyta
Comodoro Rivadavia Harbor
Patagonia
Argentina
puerto de Comodoro Rivadavia
title_short Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
title_full Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
title_fullStr Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
title_full_unstemmed Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
title_sort Colonization potential of the genus Ulva (Chlorophyta, Ulvales) in Comodoro Rivadavia Harbor (Chubut, Argentina)
author Rico, A
author_facet Rico, A
Lanas, Paola
López-Gappa, J
author_role author
author2 Lanas, Paola
López-Gappa, J
author2_role author
author
topic Ulva
Chlorophyta
Comodoro Rivadavia Harbor
Patagonia
Argentina
puerto de Comodoro Rivadavia
topic_facet Ulva
Chlorophyta
Comodoro Rivadavia Harbor
Patagonia
Argentina
puerto de Comodoro Rivadavia
description Temporal and spatial changes in the coverage of five Ulva L. species (U. prolifera O.F. Müller, U. intestinalis L., U. hookeriana (Kützing) Hayden et al., U. compressa L. and U. linza L.) were analyzed on rocky substrata experimentally immersed in Comodoro Rivadavia Harbor (Argentina). Colonization was studied during an annual period at three levels: upper intertidal, middle intertidal and subtidal. Coverage was significantly higher in the middle intertidal and subtidal levels than in the upper intertidal level, where all species of Ulva were absent. Seasonal changes were also significant: coverage in summer and spring was significantly higher than in autumn and winter. Most species showed high spatial variability among replicates from the same level and season. Zonation patterns within the harbor differed from those observed in natural areas, probably due to low wave exposure and its interaction with herbivory and desiccation stress. Colonization patterns observed in this study indicate nichesegregation in closely related species of the genus Ulva. 
publishDate 2005
format article
status_str publishedVersion
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/37
https://hdl.handle.net/20.500.12930/7314
identifier_str_mv 10.7773/cm.v31i4.37
language eng
eu_rights_str_mv openAccess
publisher Iniversidad Autónoma de Baja California
institution UABCS
collection Repositorio Institucional de la UABCS
reponame_str Repositorio Institucional de la UABCS
instname_str Universidad Autónoma de Baja California Sur
_version_ 1878409785321193472
publishDateSort 2005
author_browse Lanas, Paola
López-Gappa, J
Rico, A
publisherStr Iniversidad Autónoma de Baja California
score 6,9303427

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