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Seagrass meadows improve inflowing water quality in aquaculture ponds

2020-11Journal article Open access
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dc.contributor.authorde los Santos, Carmen B.
dc.contributor.authorOlivé, Irene
dc.contributor.authorMoreira, Márcio
dc.contributor.authorSilva, André
dc.contributor.authorFreitas, Cátia
dc.contributor.authorAraújo Luna, Ravi
dc.contributor.authorQuental-Ferreira, Hugo
dc.contributor.authorMartins, Márcio
dc.contributor.authorCosta, Monya
dc.contributor.authorSilva, João
dc.contributor.authorCunha, Maria Emilia
dc.contributor.authorSoares, Florbela
dc.contributor.authorPousão-Ferreira, Pedro
dc.contributor.authorSantos, Rui
dc.date.accessioned2020-07-30T09:08:00Z
dc.date.available2020-07-30T09:08:00Z
dc.date.issued2020-11
dc.description.abstractWater quality is critical for fish health in aquaculture production. In flow-through systems, the inflowing water normally requires quality controls and treatments for being supplied from coastal water bodies that can be polluted by nutrients, suspended solids, and microorganisms. Here we assess how seagrass meadows benefit aquaculture systems through the provision of ecosystem services (water filtration, biological control, and regulation of dissolved gasses) in the water reservoir that supplies earthen ponds in an aquaculture system in southern Portugal. In the 1.45-ha reservoir, seagrasses retained daily an estimate of 0.8–1.8 kg d−1 of nitrogen, 0.04–0.07 kg d−1 of phosphorus in their biomass, and 0.7–1.1 kg dw d−1 of suspended total particulate matter, bringing benefits in terms of nutrient and particle removal from the water column. Diel and spatial variation in faecal coliforms levels (Escherichia coli) in the reservoir suggested that seagrasses, in combination with light exposure, may reduce the levels of this pathogen. Furthermore, the seagrass-dominated system oxygenated the water through photosynthesis at a faster rate than the respiratory oxygen consumption, maintaining the system above the aquaculture minimum oxygen. This study demonstrates that seagrasses can be used as a nature-based solution to overcome water quality challenges in flow-through aquaculture ponds.pt_PT
dc.description.sponsorshipFoundation of Science and Technology of Portugal through projects PTDC/MAR-EST/3223/2014 and UIDB/04326/2020 and through fellowships SFRH/BPD/119344/2016 and SFRH/BD/118601/2016, and was further funded by MAR2020 through project DIVERSIAQUA (MAR202016-02-01-FMP-0066).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.aquaculture.2020.735502pt_PT
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10400.1/14547
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectWater qualitypt_PT
dc.subjectWater purificationpt_PT
dc.subjectSeagrasspt_PT
dc.subjectBiological controlpt_PT
dc.subjectNature-based solutionspt_PT
dc.titleSeagrass meadows improve inflowing water quality in aquaculture pondspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage735502pt_PT
oaire.citation.titleAquaculturept_PT
oaire.citation.volume528pt_PT
person.familyNameBarrena de los Santos
person.familyNameOlivé
person.familyNameVicente Moreira
person.familyNameFreitas
person.familyNameMartins
person.familyNameCosta
person.familyNameSilva
person.familyNameSantos
person.givenNameCarmen
person.givenNameIrene
person.givenNameMárcio Júlio
person.givenNameCátia
person.givenNameMárcio
person.givenNameMonya
person.givenNameJoão
person.givenNameRui
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person.identifier.orcid0000-0002-7861-4366
person.identifier.ridL-3723-2014
person.identifier.ridJ-3922-2013
person.identifier.ridJ-7874-2013
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person.identifier.scopus-author-id26427612000
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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