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Phytoplankton in two tropical mangroves of São Tomé Island (Gulf of Guinea): A contribution towards sustainable management strategies

2017Journal article Restricted access
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dc.contributor.authorC. Brito, Ana
dc.contributor.authorSilva, Teresa
dc.contributor.authorBeltrán, Carolina
dc.contributor.authorChainho, Paula
dc.contributor.authorde Lima, Ricardo F.
dc.date.accessioned2020-01-19T20:05:19Z
dc.date.available2020-01-19T20:05:19Z
dc.date.issued2017
dc.description.abstractPhytoplankton are important primary producers in tropical coastal lagoons, with a critical role in sustaining food webs. However, most studies conducted in tropical systems with high anthropogenic influence have focused only on biomass. Water samples were collected, for phytoplankton (pigments and microscopy) and other environmental parameters, from two mangrove lagoons in São Tomé Island. The highest nutrient concentrations were observed in the mangrove of Praia das Conchas, indicating stronger nutrient inputs in this catchment area. Bottom oxygen deficiency was observed in the mangrove of Malanza, which is likely to be associated with the existence of a bridge that constrains the water exchange with the sea. Pigment analyses showed that overall chlorophyll a concentrations were low, indicating low phytoplankton biomass. The highest values were found at Praia das Conchas. It is suggested that chlorophyll a can be used as an indicator of anthropogenic pressure in this tropical system. Microscopy reveales the presence of Dinophysis sp. and Ostreopsis sp. cells, which can be harmful even at low densities. Water quality could be improved by enhancing oxygen condition in Malanza and by monitoring the occurrence of algal blooms, with potential benefits for public health and tourism.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.rsma.2016.11.005pt_PT
dc.identifier.issn2352-4855
dc.identifier.urihttp://hdl.handle.net/10451/41138
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S235248551630144Xpt_PT
dc.subjectPhytoplanktonpt_PT
dc.subjectEnvironmental monitoringpt_PT
dc.subjectMangrovept_PT
dc.subjectEutrophicationpt_PT
dc.subjectTropicspt_PT
dc.subjectSão Tomé and Principept_PT
dc.subjectManagement planspt_PT
dc.titlePhytoplankton in two tropical mangroves of São Tomé Island (Gulf of Guinea): A contribution towards sustainable management strategiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage96pt_PT
oaire.citation.startPage89pt_PT
oaire.citation.titleRegional Studies in Marine Sciencept_PT
oaire.citation.volume9pt_PT
person.familyNameBrito
person.familyNameSilva
person.familyNameChainho de Oliveira
person.givenNameAna C.
person.givenNameTeresa
person.givenNamePaula Maria
person.identifier.ciencia-idFF16-4E19-EEF4
person.identifier.ciencia-id8417-2F86-DF11
person.identifier.orcid0000-0001-6539-5830
person.identifier.orcid0000-0003-4785-5383
person.identifier.orcid0000-0002-3539-9942
person.identifier.ridF-4473-2011
person.identifier.scopus-author-id26431242400
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication99a1ebf9-0208-4be2-8dda-e5ba8e9be92c
relation.isAuthorOfPublication10289fb1-941d-45ba-a3d7-c4e00b91c85a
relation.isAuthorOfPublication77050eda-da9e-4127-9f94-215d48048703
relation.isAuthorOfPublication.latestForDiscovery99a1ebf9-0208-4be2-8dda-e5ba8e9be92c

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