Percorrer por autor "Batista, Manuela"
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- Corrigendum to “Golden carbon of Sargassum forests revealed as an opportunity for climate change mitigation” [Sci. Total Environ., 729 (2020) Start page – End page/ 138745]Publication . Gouvêa, Lidiane P.; Assis, J.; Gurgel, Carlos F.D.; Serrao, Ester; Silveira, Thiago C.L.; Santos, Rui; Duarte, Carlos M.; Peres, Leticia M.C.; Carvalho, Vanessa; Batista, Manuela; Bastos, Eduardo; Sissini, Marina N.; Horta, Paulo A.
- Golden carbon of Sargassum forests revealed as an opportunity for climate change mitigationPublication . Gouvêa, Lidiane P.; Assis, Jorge; Gurgel, Carlos F. D.; A, Serrão; Silveira, Thiago C.L.; Santos, Rui; Duarte, Carlos M.; Peres, Leticia M. C.; Carvalho, Vanessa F.; Batista, Manuela; Bastos, Eduardo; Sissini, Marina N.; Horta, Paulo A.Marine climate change mitigation initiatives have recently attracted a great deal of interest in the role of natural carbon sinks, particularly on coastal systems. Brown seaweeds of the genus Sargassum are the largest canopyforming algae in tropical and subtropical environments, with a wide global distribution on rocky reefs and as floating stands. Because these algae present high amounts of biomass, we suggest their contribution is relevant for global carbon stocks and consequently for mitigating climate change as CO2 remover. We modelled global distributions and quantified carbon stocks as above-ground biomass (AGB) with machine learning algorithms and climate data. Sargassum AGB totaled 13.1 Pg C at the global scale, which is a significant amount of carbon, comparable to other key marine ecosystems, such as mangrove forests, salt marshes and seagrass meadows. However, specific techniques related to bloom production and management, or the utilization of biomass for biomaterials, should be fostered.
- Kelps’ long-distance dispersal: role of ecological/oceanographic processes and implications to marine forest conservationPublication . Batista, Manuela; Batista Anderson, Antônio; Franzan Sanches, Paola; Polito, Paulo; Lima Silveira, Thiago; Velez-Rubio, Gabriela; Scarabino, Fabrizio; Camacho, Olga; Schmitz, Caroline; Martinez, Ana; Ortega, Leonardo; Fabiano, Graciela; Rothman, Mark; Liu, Gang; Ojeda, Jaime; Mansilla, Andrés; Barreto, Luis Fernando; Assis, J.; Serrao, Ester; Santos, Rui; Antunes Horta, PauloLong-distance dispersal is one of the main drivers structuring the distribution of marine biodiversity. This study reports the first occurrence of Macrocystis pyrifera and Durvillaea antarctica rafts on the southwestern warm temperate coast of the Atlantic Ocean. Our results indicate that an extreme meteo-oceanographic event, characterized by a northward, displacement of cold sub-Antarctic oceanic waters driven by an extratropical cyclone, could account for these unusual occurrences. A niche model based on known current distribution and maximum entropy principle (MAXENT), revealed the availability of suitable habitats at lower latitudes, outside their actual distribution edges. The distributional boundaries, mainly driven by temperature and irradiance, suggest the existence of environmental suitability in warm temperate areas, as well as in the Northern Hemisphere off Atlantic and Asian coasts. These theoretical edges and respective environmental drivers agree with the physiological affinities of both species, supporting the hypothesis that these variables act as limiting factors for their occurrences in tropical or warmer areas. Emerging regions can function as refuges and stepping-stones, providing substrate with adequate habitat conditions for recruitment of propagules, allowing eventual colonization. Long dispersal events reinforce the need for an extensive discussion on selective management of natural dispersion, biological invasions, refuge mapping and conservation initiatives in a transnational perspective.