February 1st to 5th 2016
Olhão, Portugal
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Composition and dynamics of armored dinoflagellates assemblages in the upwelling region (Cape Saint Vincent, Sagres, South-West Portugal).

Scientific Exhibition
Biodiversity Effects
Thursday, February 4, 2016 -
17:30 to 19:30

Danchenko, S. 1 Dodge, J. 2 Icely, J.D. 3 Fragoso, B.D.D. 4 Newton, A. 5

1Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
2The Old Farmhouse, Elmley Road, Ashton-under-Hill, Evesham, Worchestershire WR11 7SW, UK
3Centre for Marine and Environmental Research (CIMA), University of Algarve, Sagremarisco
4Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
5Norwegian Institute of Air Research

The armored dinoflagellate community from the Iberian upwelling region at Sagres, in the Cape Saint Vincent region of Portugal was studied at an offshore concession for bivalve aquaculture. Plankton samples were collected with a 55 micron net on a weekly to monthly basis between 1994 to 2001. The dinoflagellate community demonstrated successive changes following wind-induced upwelling-stratification and seasonal changes. Several types of communities, including genera of Ceratium, Protoperidinium, Dinophysis, Prorocentrum, were identified on the basis of ecologically grouped species, comparable to life-form types associated with mixing-nutrient habitats. It is suggested that analysis of oceanographical and meteorological data, including those obtained by satellite remote sensing, can be useful for detecting the conditions for development of dinoflagellate communities containing harmful species in the region, with potential use for aquaculture management.
keywords: 
Dinoflagellates, upwelling, harmful algae

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