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Addressing Sustainability of Clam Farming in the Venice Lagoon Ecology and Society
Melaku Canu, Donata; National Institute of Oceanography and Experimental Geophysics OGS; dcanu@inogs.it; Pastres, Roberto; Ca' Foscari University of Venice ; pastres@unive.it; Pizzo, Lara; University of Padova TeSAF Dept; lara.pizzo@unipd.it; Rossetto, Luca; University of Padova TeSAF Dept; luca.rossetto@unipd.it; Solidoro, Cosimo; National Institute of Oceanography and Experimental Geophysics OGS; csolidoro@inogs.it.
The clam fishing and aquaculture system in the Venice Lagoon still appears insufficiently resilient to buffer external and internal perturbations, such as productivity fluctuations, unregulated fishing, and market related dynamics, despite the efforts of regional and local authorities to achieve the sustainable development. According to the System Approach Framework (SAF), based on previous studies and stakeholder interactions, we developed a model integrating ecological, social, and economic (ESE) aspects. We chose the aspects necessary to represent the essential dynamics of major ecological, social, and economic clam farming system components to project the consequences of implementing alternative management policies and to address the ecological and...
Tipo: Peer-Reviewed Reports Palavras-chave: Clam farming; Model integration; Social carrying capacity; System Approach Framework; Tapes philippinarum; Venice Lagoon.
Ano: 2011
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Integrating Econometric Models of Australia's Livestock Industries: Implications for Forecasting and Other Economic Analyses AgEcon
Vere, David T.; Griffith, Garry R..
The perceived value of integrating small partial- equilibrium structural models of individual livestock industries into a comprehensive single-sector model is to take advantage of the interrelationships that are usually expressed by cross elasticities on both the supply and demand sides of these industries. Model integration should provide a more realistic representation of the livestock industries and an improved mechanism for industry analyses. However, model integration could also lead to increased error in model simulation that could reduce the value of the larger model for those purposes. Using forecasting as an example application, this paper investigates how the increased endogenisation of cross-commodity relationships in alternative structural...
Tipo: Working or Discussion Paper Palavras-chave: Structural econometric models; Model integration; Forecasting; Economic analysis; Livestock Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/12916
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Biophysical and economic models for assessing impacts of change on grazingland ecosystems AGRIAMBI
Souza Neto,José de; Conner,James R.; Stuth,Jerry W..
PHYGROW, a hydrologic-based forage simulation model, was parameterized to represent a typical South Texas ranch engaged in the production of cattle and meat goats with an indigenous population of white-tailed deer. Forage production and associated stocking rates for two cattle:goat ratios were simulated with POPMIX for 20 years. Two ten-year weather scenarios, one representing normal conditions (30% drought years) and one representing dryer weather conditions (50% drought years) were analyzed. Management decision rules (ASPC) were developed for the region to produce estimates of annual animal production and operating costs for the enterprises on each of the four scenarios. These performance and cost data were then used as input into FLIPSIM, a firm level...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Simulation; Model integration; Economic impacts; Grazingland ecosystems; Management strategies.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662001000100025
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