Sediment features, macrozoobenthic assemblages and trophic relationships (d13C and d15N analysis) following a dystrophic event with anoxia and sulphide development in the Santa Giusta lagoon (western Sardinia, Italy) (Articolo in rivista)

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Label
  • Sediment features, macrozoobenthic assemblages and trophic relationships (d13C and d15N analysis) following a dystrophic event with anoxia and sulphide development in the Santa Giusta lagoon (western Sardinia, Italy) (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.marpolbul.2007.10.015 (literal)
Alternative label
  • Magni P; Rajagopal S; van der Velde G; Fenzi G; Kassenberg J; Vizzini S; Mazzola A; Giordani G (2008)
    Sediment features, macrozoobenthic assemblages and trophic relationships (d13C and d15N analysis) following a dystrophic event with anoxia and sulphide development in the Santa Giusta lagoon (western Sardinia, Italy)
    in Marine pollution bulletin.
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Magni P; Rajagopal S; van der Velde G; Fenzi G; Kassenberg J; Vizzini S; Mazzola A; Giordani G (literal)
Pagina inizio
  • 125 (literal)
Pagina fine
  • 136 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0025326X07003773 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 57 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IAMC National Research Council - Institute for Coastal Marine Environment c/o IMC - International Marine Centre, Loc. Sa Mardini, Torregrande, 09072 Oristano, Italy; Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands; IMC - International Marine Centre, Loc. Sa Mardini, Torregrande, 09072 Oristano, Italy; National Museum of Natural History Naturalis, P.O. Box 9517, 2300 RA Leiden, The Netherlands; Dipartimento di Biologia Animale, Universita` di Palermo, via Archirafi 18, 90123 Palermo, Italy; Dipartimento di Scienze Ambientali, Universita` di Parma, Via Usberti 33/A, 43100 Parma, Italy. (literal)
Titolo
  • Sediment features, macrozoobenthic assemblages and trophic relationships (d13C and d15N analysis) following a dystrophic event with anoxia and sulphide development in the Santa Giusta lagoon (western Sardinia, Italy) (literal)
Abstract
  • Macrozoobenthic assemblages and stable carbon (delta C-13) and nitrogen (delta N-15) isotope values of various primary producers (macroalgae and angiosperms) and consumers (macroinvertebrate filter/suspension feeders, deposit feeders, detritivores/omnivores and carnivores and fishes) were studied in the Santa Giusta lagoon (Sardinia, Italy) before (spring) and after (autumn) a dystrophic event which occurred in the summer of 2004. A few days after the dystrophy, the physico-chemical characteristics of sediments and macrozoobenthic assemblages were also investigated. In the latter occasion, high total organic carbon (3.9%) and organic matter (15.9%) contents of surface sediments went together with peaks in Licid-volatile sulphide concentrations. Certain immediate effects were quite extreme, such as the drastic reduction in macrozoobenthos and the massive fish kill in August 2004. Among the macrozoobenthos, there were few individuals or chironomid larvae and Capitella cf. capitata left. However, by October, chironomid larvae were numerous, indicating a lack of predators (e.g. fish) and competitors. In addition, some bivalve species and polychaetes which were absent, or present in small numbers before the event, became relatively numerous. The results are discussed based on a knowledge of the sulphide tolerance of these species. Stable isotope analysis clearly showed that the basal level of the food web for most consumers consisted mainly of macroalgae and sedimentary organic matter, and that the values before and after the dystrophic event were not significantly different from one another. This indicates that the relations among different trophic levels were quickly restored following the dystrophic event. (c) 2007 Elsevier Ltd. All rights reserved. (literal)
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