Fluctuations of physicochemical characteristics in sediments and overlaying water during an anoxic event: a case study from Lesina lagoon, Italy. (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Fluctuations of physicochemical characteristics in sediments and overlaying water during an anoxic event: a case study from Lesina lagoon, Italy. (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Specchiulli Antonietta, D'Adamo Raffaele, Renzi Monia, Vignes Fabio, Fabbrocini Adele, Scirocco Tommaso, Florio Marisa, Cilenti Lucrezia, Breber Paolo, Focardi Silvano, Basset Alberto (2009)
    Fluctuations of physicochemical characteristics in sediments and overlaying water during an anoxic event: a case study from Lesina lagoon, Italy.
    in III Congresso Lagunet - Conservazione, Valorizzazione e Ripristino ambientale in ecosistemi di transizione, Orbetello (GR), 1-4 ottobre 2009
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Specchiulli Antonietta, D'Adamo Raffaele, Renzi Monia, Vignes Fabio, Fabbrocini Adele, Scirocco Tommaso, Florio Marisa, Cilenti Lucrezia, Breber Paolo, Focardi Silvano, Basset Alberto (literal)
Note
  • Comunicazione (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • National Research Council - Institute of Marine Science, Lesina (FG), Via Pola 4, 71010 Lesina (FG), Italy Research Centre in Lagoon ecology, fishery and aquaculture (Ecolab), Polo Universitario Grossetano, University of Siena, Via Lungolago dei Pescatori s.n., 58015 Orbetello (GR), Italy Department of Environmental Science, University of Siena, Via Mattioli 4, 53100 Siena, Italy Department of Biological and Environmental Sciences and Technologies, University of Salento; Centro Ecotekne, sp Lecce-Monteroni - 73100 Lecce, Italy (literal)
Titolo
  • Fluctuations of physicochemical characteristics in sediments and overlaying water during an anoxic event: a case study from Lesina lagoon, Italy. (literal)
Abstract
  • The results presented in this work are related to an anoxic event occurred in Lesina lagoon (SE Italy) in summer 2008. The main aim is to describe the short-term dynamics of physicochemical characteristics of both sediment and overlaying water, inside and outside the critical area. Nine sampling campaigns were carried out on a weekly basis. At each occasion T, S, pH, DO, nutrients and chl a were measured in water and TOC, TN, TP, TFe and ORP were performed on superficial sediments. Multivariate analysis was used in order to evaluate differences between disturbed and undisturbed sites and assess the relationships between sediments and overlaying water. The factor \"location\" was significant for the observed physicochemical differences, as also tested by Anosim test one-way which supported evident differences in sediments (R = 0.599, P = 0.01%) and water (R = 0.381, P = 0.01%). Wide fluctuations of oxygen and chlorophyll a were observed within the anoxic area at the beginning of the observation period, with a peak of biomass of 180 ?g.L-1 followed by saturation of oxygen higher than 100%. PCA analysis on sediment variables indicated a clear separation between inner and outer sites along the first axis (PC1) strongly associated with TOC, TN and ORP. A relationship TPsed-TPwat-chl a was observed and confirmed by statistical correlation methods based on Spearman rank (Rho = 0,569, significance level of 0.01%). (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
data.CNR.it