Marcelo Vasconcellos

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It is true that we have a global fisheries crisis, but it is equally true that we already have the tools to understand its causes and overcome it. One of the elements of this toolkit is the Food and Agriculture Organization (UN) Code of Conduct for Responsible Fisheries, launched in 1995 and endorsed by all of FAO's member states. The Code, a mixture of(More)
Dynamic simulations of 18 ECOPATH mass-balance marine trophic models are used to explore the stability of systems when briefly impacted by a fishery on the key 'wasp-waist' populations occurring at intermediate trophic levels. The results are related to different ecosystem goal functions previously identified as representative of three attributes of(More)
We estimate biomass trends for demersal and large pelagic fishes, (i.e., excluding small pelagic and mesopelagic fishes) based on 17 Ecopath models from Mauritania, Cape Verde, Senegal, the Gambia, Guinea, and Guinea-Bissau, Sierra Leone and the open waters of the central east Atlantic, made to represent various time periods during the second half of the 20(More)
The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its(More)
This paper analyses the ecological knowledge of small-scale fishers in the estuary of Patos Lagoon, obtained from interviews and questionnaire surveys, and discusses its potential role in the local co-management of artisanal fisheries. This study demonstrates that fishers' knowledge can provide a valuable set of information about the characteristics of(More)
Table grapes are one of the most productive and economically relevant fruit crops worldwide. Table grape production characterizes by high water productivity but also by an intensive use of water, which puts pressure on local/regional water resources, particularly in dry regions (e.g. South Mediterranean, Northeast and Southeast of Brazil). Climate change(More)
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