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Percorrer por autor "Mudge, Stephen"

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  • An overview of ecological status, vulnerability and future perspectives of European large shallow, semi-enclosed coastal systems, lagoons and transitional waters
    Publication . Newton, Alice; Icely, John; Cristina, Sónia; Brito, Ana; Cardoso, Ana Cristina; Colijn, Franciscus; Riva, Simona Dalla; Gertz, Flemming; Hansen, Jens Würgler; Holmer, Marianne; Ivanova, Kateryna; Leppäkoski, Erkki; Canu, Donata Melaku; Mocenni, Chiara; Mudge, Stephen; Murray, Nicholas; Pejrup, Morten; Razinkovas, Arturas; Reizopoulou, Sofia; Pérez-Ruzafa, Angel; Schernewski, Gerard; Schubert, Hendrik; Carr, Laishalla; Solidoro, Cosimo; PierluigiViaroli, null; Zaldívar, José-Manuel
    The paper gives an overview of some of the large, shallow, semi-enclosed coastal systems (SECS) in Europe, These SECS are important both from the ecological and the economic perspective (socioecological systems) and provide many valuable ecosystem goods and services. Although some of the systems are transitional waters under theWater Framework Directive, this is not the case for all of the systems. The paper adopts a Driver-Pressure-State-Impact-Response approach to analyse the ecological status, vulnerability and future perspectives of these systems in the context of global change.
    2014Artigo científico Acesso aberto Ver mais
  • Sewage contamination following an accidental spillage in the Ria Formosa, Portugal
    Publication . Bebianno, Maria João; Mudge, Stephen
    Following an accidental spillage of sewage to the Ria Formosa in September, 1994, sediment samples were collected and analysed for sterols and fatty alcohols. Coprostanol concentrations ranged from 0.1 mu g g(-1) at sites remote from the spill, to 41.8 mu g g(-1) adjacent to the source. Use of the coprostanol/cholesterol ratio indicates the localized nature of the dispersion, only 2 km from the source. The distribution of fucosterol, ergosterol and fatty alcohols in the sediments are discussed. Principal Component Analysis using selected sterol and fatty alcohol ratios identified two major components describing the extent of sewage contamination and the marine-terrestrial nature of the organic matter
    1997Artigo científico Acesso restrito Ver mais