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dc.creatorLoría Naranjo, Margarita
dc.creatorSamper Villarreal, Jimena
dc.creatorSandoval Siles, Marylaura
dc.creatorCortés Núñez, Jorge
dc.date.accessioned2019-05-23T15:16:16Z
dc.date.available2019-05-23T15:16:16Z
dc.date.issued2018
dc.identifier.citationhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/31035es_ES
dc.identifier.issn2215-2075
dc.identifier.urihttp://hdl.handle.net/10669/77327
dc.description.abstractSeagrass beds are an important ecosystem on the Caribbean coast of Costa Rica. At Cahuita National Park (CNP) a seagrass bed at Perezoso has been monitored continually since 1999 within the CARICOMP program. Thalassia testudinum is the dominant seagrass species, in some cases mixed with Syringodium filiforme. The results from the 2009 to 2015 monitoring period are presented here, and contrasted with data before 2009. Total (above and below ground tissue) mean biomass of T. testudinum was higher (1255.4 ± 146.0 gm-2) than biomass before 2009, with an increasing tendency. However, productivity (1.5±0.59 gm-2d-1) and turnover rate (4.3 ± 1.2 %d-1) were lower than previous monitoring periods. In this period, mean leaf area diminished considerably (4.9 ± 2.30 m2), but leaf area index (LAI) increased (1.9 ± 0.80 m2leafm-2) in comparison to prior monitoring. Productivity, density, turnover rate, LAI and biomass showed intra-annual variations; while mean biomass of T. testudinum did not vary significantly among years. No correlations were found between water salinity, temperature and clarity with seagrass measurements. However, most seagrass parameters were strongly correlated with precipitation. These results highlight the effect of external environmental agents acting on the ecosystem. CNP presents a long-term stable seagrass meadow. However, there are indirect signals, such as high biomass and above-ground biomass proportion, along with low productivity and LAI, which point to a nutrient increment in Perezoso’s seagrass bed. To continue protecting this seagrass bed, it is necessary to improve monitoring methods, and seagrass beds should be included in national conservation policies and monitoring programs. Rev. Biol. Trop. 66(3): 1149-1161. Epub 2018 September 01.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[808-96-298]/UCR/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.sourceRevista de Biología Tropical; Vol. 66(3)es_ES
dc.subjectThalassia testudinumes_ES
dc.subjectSyringodium filiformees_ES
dc.subjectCahuita National Parkes_ES
dc.subjectCARICOMPes_ES
dc.subjectSeagrass bedes_ES
dc.subjectBiomasses_ES
dc.subjectProductivityes_ES
dc.subjectLeaf areaes_ES
dc.subjectLAIes_ES
dc.subjectCosta Ricaes_ES
dc.titleIntra- and inter-annual variation in a seagrass meadow on the Caribbean coast of Costa Rica: 2009-2015es_ES
dc.title.alternativeVariación intra e inter anual en una pradera de pastos marinos en la costa caribeña de Costa Rica: 2009-2015es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.date.updated2019-04-16T00:09:21Z
dc.identifier.doi10.15517/RBT.V66I3.31035
dc.description.procedenceUCR::Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR)es_ES
dc.description.procedenceUCR::Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES
dc.identifier.codproyecto808-96-298


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