Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary

8 pages, 2 figures, 4 tables

Detalhes bibliográficos
Autores: Casamayor, Emilio O., García-Cantizano, Josefina, Mas, Jordi, Pedrós-Alió, Carlos
Formato: artículo
Fecha de publicación:2001
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/49535
Acesso em linha:http://hdl.handle.net/10261/49535
Access Level:acceso abierto
Palavra-chave:Primary production
Dark fixation
Thiobacilli
Salt wedge
Estuary
Sulfide
Oxic/anoxic interface
Oxic
Interface
Anoxic
id ES_359ff18ccf16653e08bd852fc15d3a2e
oai_identifier_str oai:digital.csic.es:10261/49535
network_acronym_str ES
network_name_str España
repository_id_str
spelling Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge EstuaryCasamayor, Emilio O.García-Cantizano, JosefinaMas, JordiPedrós-Alió, CarlosPrimary productionDark fixationThiobacilliSalt wedgeEstuarySulfideOxic/anoxic interfaceOxicInterfaceAnoxic8 pages, 2 figures, 4 tablesThe present study assesses the contribution of dark carbon fixation to the primary production in the oxic/anoxic interface of a shallow estuarine environment that develops a salt-water wedge with the presence of sulfide. Primary production was partitioned into oxygenic photosynthesis, anoxygenic photosynthesis and dark fixation. The results show the importance of dark fixation in the oxic/anoxic interface with values higher than 5 mg carbon fixed per cubic meter and per hour in some cases. The average rate of primary production in the dark during the anoxic season for the Ebro River salt wedge resulted in 42 mg C m-2 d-1 in the interface. This represents at least twice the contribution of oxygenic photosynthesis to the primary production in such interface. Because this process is probably important in other salt-wedge or highly stratified estuaries with oxic/anoxic interfaces containing sulfide, the estimates of carbon fixation made so far for these systems may have been underestimated, and should therefore be revised taking into account the contribution of dark processesThis work was financed by DGICyT grant PB87-0183 from the Spanish Ministerio de Educación y Ciencia. J.G.-C. was supported by a FPI scholarship from the Spanish Ministerio de Educación y Ciencia. During the writing of this work, E.O.C. was supported by MIDAS (MIcrobial Diversity in Aquatic Systems, MAS3-CT97-0154) from the European UnionPeer reviewedInter Research201220122001info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/49535reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3354/meps215049info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/495352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
title Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
spellingShingle Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
Casamayor, Emilio O.
Primary production
Dark fixation
Thiobacilli
Salt wedge
Estuary
Sulfide
Oxic/anoxic interface
Oxic
Interface
Anoxic
title_short Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
title_full Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
title_fullStr Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
title_full_unstemmed Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
title_sort Primary production in estuarine oxic/anoxic interfaces: contribution of microbial dark CO2 fixation in the Ebro River Salt Wedge Estuary
dc.creator.none.fl_str_mv Casamayor, Emilio O.
García-Cantizano, Josefina
Mas, Jordi
Pedrós-Alió, Carlos
author Casamayor, Emilio O.
author_facet Casamayor, Emilio O.
García-Cantizano, Josefina
Mas, Jordi
Pedrós-Alió, Carlos
author_role author
author2 García-Cantizano, Josefina
Mas, Jordi
Pedrós-Alió, Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv Primary production
Dark fixation
Thiobacilli
Salt wedge
Estuary
Sulfide
Oxic/anoxic interface
Oxic
Interface
Anoxic
topic Primary production
Dark fixation
Thiobacilli
Salt wedge
Estuary
Sulfide
Oxic/anoxic interface
Oxic
Interface
Anoxic
description 8 pages, 2 figures, 4 tables
publishDate 2001
dc.date.none.fl_str_mv 2001
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/49535
url http://hdl.handle.net/10261/49535
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3354/meps215049
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405900343607296
score 15,811543

Registos relacionados