Food-web changes in the Adriatic Sea over the last three decades (Articolo in rivista)

Type
Label
  • Food-web changes in the Adriatic Sea over the last three decades (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Coll M., Santojanni A., Palomera I., Arneri E. (2009)
    Food-web changes in the Adriatic Sea over the last three decades
    in Marine ecology. Progress series (Halstenbek)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Coll M., Santojanni A., Palomera I., Arneri E. (literal)
Pagina inizio
  • 17 (literal)
Pagina fine
  • 37 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • doi: 10.3354/meps07944 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 381 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, 37–49, 08002 Barcelona, Spain (2) Dalhousie University, Department of Biology, Oxford Street, Halifax, Nova Scotia B3H 4J1, Canada (3) Istituto di Scienze Marine (CNR), Sede di Ancona, Largo Fiera della pesca 2, 60125 Ancona, Italy (literal)
Titolo
  • Food-web changes in the Adriatic Sea over the last three decades (literal)
Abstract
  • We used a process-oriented model (Ecosim) to characterize changes in marine resources in the north-central (NC) Adriatic Sea (Mediterranean) from 1975 to 2002, and to explore the extent to which these changes were driven by trophic interactions, environment and fishing. Fishing efforts and fishing mortalities were used to drive the ecosystem model, and available biomass and catch data were compared to the model predictions. We calibrated and assessed the fit of the model using the sum of the squared deviations of the observed and predicted biomass values. Trophodynamic indicators were then calculated and used to analyse changes to the ecosystem. Trophic interactions, fishing, and environmental conditions were important driving factors of the ecosystem. Predictions from the model adequately matched observed biomass and catch data for each year. Observed trends and predicted data for biomasses decreased with time for several species, including Norway lobster, hake, red mullets, flatfish, and anchovy. The environmental functions resulting from the fitting procedure predicted that primary production and nutrients increased beyond the baseline from 1975 level, and then showed a decrease. They were negatively correlated with mean sea surface temperature and positively correlated with the Mediterranean Oscillation Index. Our results suggested that the NC Adriatic ecosystem became more degraded over time due to expanding fishing effort, bottom-up effects, and climatic anomalies. Possible mechanisms involved are discussed. Comparing our findings with descriptions of the south Catalan Sea ecosystem showed certain similarities between these 2 Mediterranean ecosystems and revealed unique features of the Adriatic Sea. (literal)
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