Hydrological and biogeochemical features of the Northern Adriatic Sea in the period 2003-2006
| Autor: | Franco Bianchi, Daniele Cassin, Francesco Acri, Mauro Bastianini, Joan Coppola, Fabrizio Bernardi Aubry, Gianpiero Cossarini, Amelia De Lazzari, Vinko Bandelj, Giorgio Socal, Cosimo Solidoro |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
0106 biological sciences
Biogeochemical cycle Water mass Chlorophyll a Adriatic Sea 010504 meteorology & atmospheric sciences Stratification (water) hydrology Aquatic Science Structural basin 01 natural sciences chemistry.chemical_compound Water column biogeochemical properties Phytoplankton Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Ecology 010604 marine biology & hydrobiology self-organising map Oceanography chemistry 13. Climate action Environmental science Spatial variability fuzzy k-means |
| Zdroj: | Marine ecology (Berl.) 29(4) (2008): 449–468. doi:10.1111/j.1439-0485.2008.00266.x info:cnr-pdr/source/autori:Socal G; Acri F; Bastianini M; Aubry FB; Bianchi F; Cassin D; Coppola J; De Lazzari A; Bandelj V; Cossarini G; Solidoro C/titolo:Hydrological and biogeochemical features of the Northern Adriatic Sea in the period 2003-2006/doi:10.1111%2Fj.1439-0485.2008.00266.x/rivista:Marine ecology (Berl.)/anno:2008/pagina_da:449/pagina_a:468/intervallo_pagine:449–468/volume:29(4) |
| Popis: | This paper reports on the main biogeochemical properties of the Northern Adriatic Sea in the period May 2003‐November 2006 within the framework of the European program INTERREG III Italy-Slovenia. Spatial and temporal distributions of water density, dissolved oxygen, nutrients (nitrogen, phosphorous and silicon) and chlorophyll a are presented. Multivariate methods such as fuzzy k-means, self-organising maps and cluster analysis were used to identify the different water masses and to characterise the temporal and spatial variability of the main biogeochemical features present in the area. The results confirm that the Po River outflows and the meteorological forcing factors are the main components triggering the alternation of stratification and mixing of the water column and that strongly affect the trophic state of the basin. In general, oligotrophic conditions dominate, and were more pronounced offshore, but mesotrophy occurred episodically in May 2004 and July 2005, when phytoplankton blooms were observed concomitant with vertical stability of the water column. A marked interannual variability was also observed, supporting the importance of maintaining long-term observations of the basin. |
| Databáze: | OpenAIRE |
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