INVESTIGADORES
MARCOVECCHIO Jorge Eduardo
congresos y reuniones científicas
Título:
The role of Spartina alterniflora in heavy metals dynamics in an estuary from the Southern Hemisphere.
Autor/es:
SANDRA BOTTE; VANESA NEGRIN; EUGENIA NAHUELHUAL; FABIAN GARCIA; GABRIELA GUTIERREZ; NOELIA LA COLLA; JORGE MARCOVECCHIO
Lugar:
Mar del Plata
Reunión:
Congreso; Coastal & Estuarine Research Federation 2012 (CERF ? 2012); 2012
Institución organizadora:
Coastal & Estuarine Research Federation (CERF)
Resumen:
The presence of saltmarshes are characteristic from temperate estuaries.
They could act as reservoirs of heavy metals, many of which are
essential to biota. Nevertheless, several of them can be toxic even at low
concentration, while others only when they reach high levels. One of the
most important species in this kind of environment is the smooth
cordgrass Spartina alterniflora, an halophyte with a large distribution in
coastal ecosystems worldwide. Many scientific publications indicate that
this species may act as sink of heavy metals. The Bahía Blanca estuary
(Argentina) has important hydrographical and geographical
characteristics which makes it a particular system. It is a large mesotidal
estuary where S. alterniflora is well-distributed. Moreover, this estuary
also includes many anthropogenic activities which introduce several
pollutants. The present work shows the accumulation of metals by S.
alterniflora at different points along almost the entire length of the estuary.
The main objective was to assess the role of S. alterniflora in the cycling
of some heavy metals in this South American estuary.