INVESTIGADORES
GUINDER Valeria Ana
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. E.; FREIJE R. H.; POPOVICH C. A.; BOTTÉ S. E.; ARIAS A. H.; SPETTER C.V.; GUINDER V. A.; ASTEASUAIN R. O.
Lugar:
IFM-GEOMAR, Kiel, Alemania
Reunión:
Conferencia; AQUASHIFT. Life in warming waters; 2010
Institución organizadora:
IFM-GEOMAR
Resumen:
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 fortnightly 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.