Aplicación de indicadores y modelos para un enfoque ecosistémico de la pesca y la acuicultura: pesquería de anchoveta y cultivo de ostra del Pacífico en Chile: . Download Citation on ResearchGate | FUNDAMENTOS BIOSFERICOS DEL ENFOQUE ECOSISTEMICO | BIOSPHERIC FOUNDATION OF THE ECOSYSTEM. PDF | On Jan 1, , Ramos Miranda J. and others published Manual de indicadores y metodología para la aplicación del enfoque ecosistémico en las.

Author: Digrel Goltilrajas
Country: Comoros
Language: English (Spanish)
Genre: Technology
Published (Last): 11 February 2006
Pages: 324
PDF File Size: 16.93 Mb
ePub File Size: 12.7 Mb
ISBN: 884-2-13018-353-4
Downloads: 21141
Price: Free* [*Free Regsitration Required]
Uploader: Grogor

Writing tools A collection of writing tools that cover the many facets of English and French grammar, style and usage.

Enfoque Ecosistémico para la acuicultura mediterránea

Polychaetes as indicators of marine fish farm organic enrichment. Over the last decade, the research community has developed methodologies such as the geographic information system GISand predictive models to support decision making for the EAF Cochrane et al. Artificial neural networks as a tool in ecological modelling, an introduction.

EAA management applications should include predictions of environmental variability effects on aquaculture, to estimate carrying capacity and identify suitable sites for farms Aguilar-Manjarrez et al. Benthic impacts of fish farming: The positive socio-economic impacts generated by the aggregate income of both shellfish sales and the substitution values of the reduction of land-based fertilizers or nutrient treat- ments are shown in Table 2.

This study aims to contribute to the EAF and the EAA and thereby improve the management of coastal systems, where fisheries and aquaculture occur or emfoque being planned. A three stage approach was applied: The methodology used in this work is fully detailed in Silva et al.

No significant impacts of shellfish farming on the benthos were identified, which agrees with the findings of other authors e.

The FARM modelling results for the environmental impact of a standard seed density for Pacific oyster farms in the Valdivia Estuary are shown in Table 2. Geographic information systems to support the ecosystem approach to fisheries: The tidal regime at the mouth of the estuary Bay of Corral is semi-diurnal and has a tidal range between 0.


The FARM carrying capacity model was ecosiatemico for a detailed analysis of the oyster production, socio-economic outputs, and environmental effects biodeposition, carbon removal, nutrient emissions, and eutrophi-cation of four sites from suitable areas Niebla, Valdivia, Isla del Rey, and Tornagaleones Fig. Ocean climate changes have been related to alterations in the marine ecosystems on several spatial temporal scales Chavez et al. Towards end-to-end models for investigating the effects of climate and fishing in marine ecosystems.

Figure 6 summarises the GIS MCE approach of the ecosystem indicators constraints and factorsto generate a final map showing the site suitability. Modelling the effect of food depletion on scallop growth in Sungo Bay China.

The negative environmental impact generated by Pacific oyster farms resulted from biodeposits; however, by definition, organically extractive cultures lower the concentration of the suspended organic particles in the water column, thus, leading to a net reduction of phytoplankton and detritus.

In Stage 2, environment-resource interactions were estimated using statistical relationships among ecosystem indicators.

El Enfoque Ecosistémico by ana jofre on Prezi

In which subject field? This figure is an example of how the prediction model of anchovy PFG can be applied at daily temporal and local spatial scales.

The components of the eutrophication assessment, nutrient budget of shellfish farms Brigolin et al. The quality of the inflowing water at the Tornagaleones site was moderate; there was no effect of the oyster farms on outflowing water quality. An individual based population dynamic model for estimating biomass yield and nutrient fluxes through an off-shore Mytilus galloprovincialis farm. State of World Aquaculture Environmental effects of marine finfish.

Oyster culture can help to reduce symptoms of eutrophication by removing chlorophyll and thereby increasing water clarity, which promotes the growth of submerged aquatic vegetation and reduces the decomposition of organic material. Applying an ecosystem based approach to aquaculture: Site selection for shellfish aquaculture by means of GIS and farm-scale models, with an emphasis on data-poor environments.


The FARM model was selected for dynamic modelling because it provides all the necessary outputs, it is easy to use, and has been extensively tested USA, Ferreira et al, ; European Union, Ferreira et al, ; China, Ferreira et al, ; and Chile, Ferreira et al, ; Silva et al. Expert Panel Presentation V. Spatio-temporal data were obtained from satellite and fishing grids, and temporal data were obtained from monitoring stations and fishing ports.

Planning and management for sustainable coastal aquaculture development. The application of ecosystem indicators and models GIS, carrying capacity, and ANN will be exemplified using two case studies in Chile: Positive environmental impacts are obtained from a carbon and nitrogen mass balance as a result of the depletion of these elements through the ingestion of phytoplankton and detrital organic material by oyster filtration and the return of these elements through excretion and elimination Table 2.

The EAA case study focused on the prediction of environmental and regulatory variability effects on the site suitability and carrying capacity of Pacific oyster aquaculture in the Valdivia Estuary southern Chile Fig.

Regarding the results of the application of ANN tools, the strong correlation between the estimated and observed time series of the anchovy abundance suggests that these models capture the trend of the historical data. The simulated results by the FARM model for the biodeposition of the potential Pacific oyster farms are shown in Table 2.

This is why landings are proposed as a proxy for the abundance of anchovy in northern Chile. Methodological issues in building, training, and testing artificial neural networks in ecological applications.

Computers in fisheries research, Springer, London, pp.