Data/hora: 29/05/2024 02:43:10

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Economic modelling as a tool to support macroalgal bloom management: a case study (Sacca di Goro, Po river delta)	
Autores: 	Cellina, F; De Leo, Ga; Rizzoli, Ae; Viaroli, P; Bartoli, M.	
Data: 	2003-03	
Ano: 	2003	
Palavras-chave: 	Gestion d'une floraison macroalgale; Analyse bio-économique; Modélisation stochastique; Ulva rigida; Tapes philippinarum; Algal bloom management; Bioeconomic analysis; Stochastic modelling; Ulva rigida; Tapes philippinarum.	
Resumo: 	During the last 20, years, intensive mollusk farming has been developed in coastal waters, mostly in sheltered bays and lagoons. Often, mollusk stocks are threatened by frequent anoxic events from macroalgal blooms. Here, a decision support tool is described to select the optimal short-term strategy to control algal biomasses. Even though long-term and detailed studies of the lagoon systems are required to provide reliable, biologically based policies, we have here developed a simplified analysis that overlooks most of the ecological complexity, but explicitly includes environmental variability and uncertainty in parameter estimation in the economic assessment of the performances of different management strategies. The aim is to quickly screen management alternatives of harvesting Ulva rigida biomass in terms of the control measures considered, i.e. the number of vessels used (the harvesting effort) and the U. rigida density at which the vessels start to operate. The decision support tool was applied to the Sacca di Goro, the southernmost coastal lagoon of the Italian Po river delta, where intensive farming of the clam Tapes philippinarum occurs. The results of the analysis indicate that an intermediate number of vessels should start operating as soon as U. rigida biomass exceeds low thresholds.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00322/43294/43030.pdf

DOI:10.1016/S0399-1784(02)01238-0

http://archimer.ifremer.fr/doc/00322/43294/	
Editor: 	Gauthier-villars/editions Elsevier	
Formato: 	application/pdf	
Fonte: 	Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 2003-03 , Vol. 26 , N. 1 , P. 139-147	
Fonte: 	2003 Éditions scientifiques et médicales Elsevier SAS and Ifremer/CNRS/IRD. All rights reserved.

info:eu-repo/semantics/openAccess

restricted use