Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).

Detalhes bibliográficos
Autor(a) principal: Neto, Ana I.
Data de Publicação: 2000
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/2017
Resumo: Copyright © 2000 by Walter de Gruyter.
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spelling Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).Benthic Algal CommunitiesAzoresCopyright © 2000 by Walter de Gruyter.The dominant benthic algal species from two sites, located on opposite coasts of the island of Sao Miguel, Azores (Sao Roque in the south and Sao Vicente on the north coast) were studied over a two-year period (September 1993-September 1995). From both sites monthly collections were made in the intertidal zone and in the adjacent subtidal zone down to a depth of 15 m. The algae occur under different ecological conditions, a few species being restricted to the intertidal zone (Fucus spiralis, Gelidium microdon, Jania crassa, Caulacanthus ustulatus and Chondria coerulescens), while others (Codium elisabethae, Zonaria tournefortii, Jania verrucosa and Sphaerococcus coronopifolius) were exclusively present subtidally. Other species were present at both levels. Differences were observed between the two sites. A few species (Chaetomorpha linum, Corallina elongata and Caulacanthus ustulatus) were more abundant at Sao Roque, their presence on the north being only sporadic or occasional. On the other hand, Fucus spiralis, Gelidium microdon, Sphaerococcus coronopifolius and Centroceras clavulatum were statistically more abundant at Sao Vicente. Seasonal changes were seen in the growth and/or reproduction of certain species, with many (Ulva rigida, Bryopsis hypnoides, Stypocaulon scoparium, Dictyota dichotoma, Padina pavonica, Colpomenia sinuosa, Gelidium microdon, Asparagopsis armata, Chondracanthus acicularis and Plocamium cartilagineum) having larger plants and/or higher values of biomass in spring and/or summer. With the exception of Dictyota dichotoma that was statistically more abundant in the second sampling year, no differences were observed on the species abundance between the two years. Reproductive phenology varied according to species, with many (Fucus spiralis, Ulva rigida, Gelidium microdon, Jania rubens, Sphaerococcus coronopifolius, Caulacanthus ustulatus, and Plocamium cartilagineum) having prolonged fertile periods. Some species were more seasonal in their reproduction, being fertile only over two seasons: Codium elisabethae and the tetrasporophyte of Asparagopsis armata in autumn and winter; Cystoseira abies-marina and Pterocladiella capillacea in summer and autumn; the gametophyte of Asparagopsis armata in winter and early spring. A few had a more restricted fertile period: Chaetomorpha linum and Jania verrucosa in summer; Chondracanthus acicularis in autumn.Walter de GruyterRepositório da Universidade dos AçoresNeto, Ana I.2013-06-04T11:46:55Z2000-092011-06-28T12:14:05Z2000-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/2017engNeto, Ana I. (2000). "Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores)". «Botanica Marina», 43(5): 483-498. http://dx.doi.org/10.1515/BOT.2000.049.0006-8055 (Print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:28:43Zoai:repositorio.uac.pt:10400.3/2017Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:01.253789Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
title Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
spellingShingle Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
Neto, Ana I.
Benthic Algal Communities
Azores
title_short Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
title_full Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
title_fullStr Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
title_full_unstemmed Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
title_sort Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores).
author Neto, Ana I.
author_facet Neto, Ana I.
author_role author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Neto, Ana I.
dc.subject.por.fl_str_mv Benthic Algal Communities
Azores
topic Benthic Algal Communities
Azores
description Copyright © 2000 by Walter de Gruyter.
publishDate 2000
dc.date.none.fl_str_mv 2000-09
2000-09-01T00:00:00Z
2011-06-28T12:14:05Z
2013-06-04T11:46:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.3/2017
url http://hdl.handle.net/10400.3/2017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Neto, Ana I. (2000). "Observations on the biology and ecology of selected macroalgae from the littoral of São Miguel (Azores)". «Botanica Marina», 43(5): 483-498. http://dx.doi.org/10.1515/BOT.2000.049.
0006-8055 (Print)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Walter de Gruyter
publisher.none.fl_str_mv Walter de Gruyter
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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