INVESTIGADORES
ARIAS Andres Hugo
congresos y reuniones científicas
Título:
Long-term observational system for oceanographic studies within Bahía Blanca estuary (Argentina): state of the art and perspectives
Autor/es:
MARCOVECCHIO, J.H.; FREIJE, R.H.; POPOVICH, C.; BOTTÉ, S.; ARIAS, A.H.; SPETTER, C.V.; GUINDER, V.; ASTEASUAIN, R.
Lugar:
Auditorium maximum of the Christian-Albrechts University 24118 Kiel, Germany
Reunión:
Congreso; Aquashift - Conference 2010; 2010
Institución organizadora:
DFG Priority Program Aquashift (Germany)
Resumen:
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Bahía Blanca
Estuary is a large coastal system located in the south-eastern Buenos Aires Province
littoral, close to Northern Patagonia area. It
is an anthropogenically impacted system, which includes cities and harbors,
industrial conglomerates, dredging operations for navigational purposes,
intensive agriculture and livestock production, artisanal fisheries, etc. The
development of both oceanographic and environmental studies within this
framework is of great concern, and consequently a long-term observational
programme on the basis of physical-chemical, biological and oceanographical
data gathering was carrying out since 1974 and up to present, on a fornightly
basis. The programme includes the collection of data 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). Considering this three-decadal analysis it was possible to
understand the usual patterns of the studied parameters within the estuary, and
consenquently to identify disturbances or anomalies along this period. In
addition this database has been an adequate support for numerous studies as
developed for different research groups as well as to produce an updated
diagnosis on 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 properly manage this information to highlight its
significance.