European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Ecology of brackish-water systems of SW coast of Portugal (1984 onwards)

Data holding centreUniversity of Evora, Department of Ecology (IMAR network)
CountryPortugal  Portugal
Time periodFrom 1984 onwards
OngoingYes
Geographical area

SW coast of Portugal

Observations 
Parameters

Sediment resuspension; Fish morphology, age and physiology; Fish abundance in water bodies; Fish taxonomy-related abundance per unit area of the bed; Fish taxonomy-related ash-free dry weight biomass per unit area of the bed; Fish taxonomy-related counts; Fish non taxonomy-related morphology; Fish non taxonomy-related abundance per unit volume of the water column; Fish disease and parasites; Fish behaviour; Habitat characterisation; Habitat extent; Zoobenthos generic abundance; Zoobenthos taxonomy-related ash-free dry weight biomass per unit area of the littoral zone; Zoobenthos non taxonomy-related wet weight biomass per unit area of the bed; Sediment grain size parameters; Salinity of the water column; Sediment accumulation rate; Temperature of the water column; Sediment water content, porosity and surface area; Zoobenthos taxonomic abundance; Zooplankton and zoobenthos physiological condition parameters; Zoobenthos taxonomy-related counts; Zoobenthos taxonomy-related wet weight biomass per unit area of the bed; Skin temperature of the water column; Geological sample density

Instruments

Unknown

Description 
Summary

Shift of fish and mollusc communities under stress conditions were studied. Particularly in eutrophic lagoons, with strong internal recycling, the organic enrichment and high macrophyte biomass lead to dystrophic summer crisis. These processes cause a severe reduction of production and specific diversity. For cockle populations, biochemical criteria for the separation of species, habitat preference and trophic niche segregation were studied.

OriginatorsUniversity of Evora, Department of Ecology (IMAR network)
Availability 
OrganisationUniversity of Evora, Department of Ecology (IMAR network)
AvailabilityUnrestricted
ContactProf. Alexandre Bettencourt/Prof. Joao Bernardo
Address

University of Evora, Department of Ecology (IMAR network)
Rua Romão Ramalho, nº 59 - Colégio Luís António Verney
Évora

7000-671
Portugal

Telephone+351 266745385
Facsimile+351 266745395
Emailsecretariado@decol.uevora.pt
Administration 
Collating centreIHPT, Hydrographic Institute
Local identifier15003009
Global identifier2152
Last revised2009-10-30