INVESTIGADORES
ARIAS Andres Hugo
congresos y reuniones científicas
Título:
Long-term observational programme for environmental studies: the case of Bahía Blanca estuary (Argentina)
Autor/es:
MARCOVECCHIO, J.H.; BOTTÉ, S.; ARIAS, A.H.; SPETTER, C.V.; FERNÁNDEZ SEVERINI, M.; DELUCCHI, F.; NEGRIN, V.; BUZZI, N.; ANA M.MARTÍNEZ; FREIJE, R.H.
Lugar:
Recife
Reunión:
Congreso; Environmental Health Conference 2011, Ressetiong our priorities; 2011
Institución organizadora:
Environmental Research, Elsevier
Resumen:
Bahía Blanca Estuary is a large coastal
system located in the south-eastern littoral Province
of Buenos Aires, close to northern Patagonia area. It is an anthropogenically impacted
system, which includes cities and harbours, industrial conglomerates, dredging
operations for navigational purposes, intensive agriculture and livestock
production, artisanal fisheries, etc. In this scenario, the development of both
oceanographic and environmental studies has been of growing concern ;
consequently a long-term observational programme -based on physical-chemical,
biological and oceanographical data gathering- has been carried out since 80s
and until present, on a fortnightly, monthly or bimonthly basis. The programme
includes data collection on water temperature, conductivity / salinity, pH,
dissolved oxygen, turbidity, inorganic nutrients (NO2, NO3, NH4, PO4, SiOx),
photosynthetic pigments (chlorophyll a, phaeopigments), and several potentially
toxic substances (i.e. heavy metals, hydrocarbons, pesticides, etc).
Considering this three-decadal analysis it was possible to outline the usual
patterns of these parameters within the estuary, and since then, to identify
disturbances or anomalies along this period. In addition this database has been
an adequate support for numerous multi-disciplinary research studies as well as
to produce an updated diagnosis of the environmental condition of the estuary.
In the near future, and keeping in mind the
topics concerning with global climate change, it is necessary to manage
properly this information to highlight its significance not only as a tool for
environmental diagnosis but also to forecast potential occurrence of toxicity
events within the system.