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|Title: ||Inter-annual variations of macrobenthic communities over three decades in a land-locked coastal lagoon (Santo André, SW Portugal)|
|Authors: ||Correia, M.J.|
P. Tavares, P.
Cabral, H. N.
Cancela da Fonseca, L.
|Keywords: ||macrobenthic communities|
land-locked coastal lagoon
water framework directive
|Issue Date: ||11-May-2012|
|Citation: ||Estuarine, Coastal and Shelf Science. 110, 168 - 175|
|Abstract: ||Santo André is an enclosed brackish water coastal lagoon with temporary connections to the sea by
a man-made channel. The exchange and mixture of saltwater and freshwater is irregular and the lagoon
may show daily and seasonal fluctuations, but also long-term variation. Different benthic communities
may be present along the annual cycle according to the magnitude of episodic freshwater and sea water
In the last 30 years the communication with the sea has followed different regimes from year to year
and, as a consequence, macrobenthic communities, assessed several times during the period before the
opening to the sea, shifted from freshwater to marine affinities. Major differences were found between
1979 and 2010, with a preponderance of species with marine affinity, and the 1980s in which the
organisms with freshwater affinity prevailed. Benthic communities are frequently used to assess aquatic
environmental condition. Metrics used in the indices currently under discussion to assess ecological
status of aquatic ecosystems within the scope of European Water Framework Directive were applied to
Santo André data and the applicability of these metrics to assess quality in this coastal land-locked
lagoon was discussed|
|Appears in Collections:||PAO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica|
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