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Cultivating biomass locally or importing it? LCA of biomass provision scenarios for cleaner electricity production in a small tropical island 5
Chary, Killian; Aubin, Joel; Guinde, Loic; Sierra, Jorge; Blazy, Jean-marc.
Biomass is a promising renewable alternative to decarbonize and to secure energy production on small islands, as most insular power generation systems rely heavily on imported fossil fuels. Feedstock procurement is a key aspect of bioenergy chain sustainability, and local resources as well as imported biomass can be considered if the electricity generated presents environmental benefits. We used Life Cycle Assessment (LCA) to evaluate the environmental impacts of 1 kWh of electricity produced in Guadeloupe from the combustion of locally grown energy cane and imported wood pellets. The energy cane agricultural supply was simulated using a bio-economic model to elaborate and analyze five scenarios involving different biomass mixes and geographical areas of...
Tipo: Text Palavras-chave: LCA; Electricity; Energy cane; Wood pellet; Islands; Saccharum sp..
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00427/53878/55107.pdf
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Integrated multi-trophic aquaculture of red drum (Sciaenops ocellatus) and sea cucumber (Holothuria scabra): Assessing bioremediation and life-cycle impacts 5
Chary, Killian; Aubin, Joël; Sadoul, Bastien; Fiandrino, Annie; Covès, Denis; Callier, Myriam.
Environmental sustainability of aquaculture is a complex issue involving effects at local (e.g. benthic deterioration), regional (e.g. eutrophication) and global (e.g. catches for feed production) scales as a consequence of farming operations (e.g. waste emissions) and industrial processes involved in the product value chain. Integrating these effects using a holistic and multi-scale framework is essential to assess the environmental sustainability of innovative production systems such as Integrated Multi-Trophic Aquaculture (IMTA), in which organisms of different trophic levels are co-cultured on the same farm to minimize aquaculture waste. The environmental performances of theoretical production scenarios of red drum (Sciaenops ocellatus) sea cage...
Tipo: Text Palavras-chave: Integrated multi-trophic aquaculture (IMTA); Life cycle assessment (LCA); Bioremediation; Culture scenario; Sea cucumber.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00588/70051/67990.pdf
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Modeling sea cage outputs for data-scarce areas: application to red drum (Sciaenops ocellatus) aquaculture in Mayotte, Indian Ocean 5
Chary, Killian; Fiandrino, Annie; Coves, Denis; Aubin, Joel; Falguiere, Jean-claude; Callier, Myriam.
Robust and accurate prediction of fish farm waste is a first and crucial step in managing the cause-effect chain that leads to local environmental impacts of aquaculture. Since aquatic production is diversifying with new fish species and extending to new areas for which data can be scarce, it is important to develop parsimonious approaches with fewer data requirements and less scientific complexity. We developed the Farm productIon and Nutrient emiSsions (FINS) model, which simulates fish farm operation and estimates fish biomass, feed inputs, and waste emissions from sea cages using simple modeling approaches and a variety of data sources. We applied FINS to red drum (Sciaenops ocellatus) culture in Mayotte by collecting relevant input data (growth,...
Tipo: Text Palavras-chave: Aquaculture waste modeling; CNP mass balance; Farming scenarios; Feed digestibility; Individual-based growth model; Red drum.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00498/61003/64475.pdf
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Scenarios of fish waste deposition at the sub-lagoon scale: a modelling approach for aquaculture zoning and site selection 5
Chary, Killian; Callier, Myriam; Coves, Denis; Aubin, Joel; Simon, Julien; Fiandrino, Annie.
Spatial planning, including zoning and site-selection steps, is necessary to determine locations that minimize environmental impacts of aquaculture and respect ecosystem carrying capacities. This study aimed to analyse potential benthic waste deposition in a broad range of fish farming situations to facilitate zoning. To this end, we simulated waste dispersion for 54 aquaculture scenarios combining three red drum (Sciaenops ocellatus) farm types (Small, Medium, and Large) based on real farm characteristics and 36 sites with contrasting hydrodynamics in Mayotte’s North-East Lagoon. Key forcing variables and parameters of the particle-dispersion model for farms (layout and solid waste fluxes), species (feed- and faeces-settling velocities) and sites (depth...
Tipo: Text Palavras-chave: Aquaculture zones; Carrying-capacity; Environmental impact; Hydrodynamics; NewDEPOMOD; Particle dispersion; Red drum; Scenario analysis.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00666/77810/79985.pdf
Registros recuperados: 4
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