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A combinated approach to investigate the biochemistry and hydrography of a shallow bay in the South Adriatic Sea: the Gulf of Manfredonia (Italy)

Environmental Monitoring and Assessment volume 153, Article number: 209 (2009) Cite this article

Abstract

The main goal of this study is to understand the hydrological and biochemical set up and processes of a marine coastal area located in the western side of the south Adriatic sea (the gulf of Manfredonia) by the use of both satellite images and in situ investigations A water sampling in the gulf of Manfredonia was performed at 18 fixed stations in June 2003; physico-chemical and biological parameters (temperature, salinity, dissolved oxygen and fluorescence) were measured along the water column and water samples were collected to analyse dissolved nutrients (ammonia, nitrite, nitrate, phosphate and silicate), total nutrients (nitrogen and phosphorus), chlorophyll a and total suspended solids. Surface spatial distributions of field collected data were examined to characterize biochemical and hydrographic conditions of the Gulf of Manfredonia and these results were related with the remote sensing analysis data. Remote sensed data (obtained by Landsat 7 TM and Modis Terra) were processed to obtain maps of chlorophyll a, temperature and optical characteristics of the gulf; these maps were compared to in situ data. From physico-chemical measurements no stratification was observed in the water column except for the south-eastern area. High concentrations of silicate and ammonia were observed in the northern zone of the gulf, while nitrate, phosphate, chlorophyll a and total suspended solids distributions showed higher values in the central coastal zone. These results were confirmed by remote sensing analysis; Modis elaboration showed a distribution with higher concentrations of chlorophyll a near the coast and Landsat images highlighted the extension of the surrounding agricultural areas crossed by the two main rivers which discharge into the gulf. The integration between field data with the remote sensing analysis showed to be a valid support in coastal zone management.

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Author notes

  1. F. Spagnoli

    Present address: Department of Ancona, National Research Council-Institute of Marine Science, Largo Fiera della Pesca, 60125, Italy

  2. F. Fiesoletti

    Present address: Gruppo C.S.A. S.p.A., Rimini, Via al Torrente, 22-47900, Italy

Affiliations

  1. Department of Chemical and Biosystems Sciences, University of Siena, via Aldo Moro 1, 53100, Siena, Italy

    S. Focardi & C. Rossi

  2. Department of Lesina (FG), National Research Council-Institute of Marine Science, Via Pola 4, 71010, Lesina (FG), Italy

    A. Specchiulli, F. Spagnoli & F. Fiesoletti

Authors
  1. S. Focardi
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  2. A. Specchiulli
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  3. F. Spagnoli
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  4. F. Fiesoletti
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  5. C. Rossi
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Correspondence to S. Focardi.

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Focardi, S., Specchiulli, A., Spagnoli, F. et al. A combinated approach to investigate the biochemistry and hydrography of a shallow bay in the South Adriatic Sea: the Gulf of Manfredonia (Italy). Environ Monit Assess 153, 209 (2009). https://doi.org/10.1007/s10661-008-0350-2

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  • DOI: https://doi.org/10.1007/s10661-008-0350-2

Keywords

  • Biochemistry
  • Chlorophyll a
  • Coastal zone management
  • Hydrology
  • Nutrients
  • Remote sensing
  • Water masses