European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Benthic ecology of the Mira Estuary (Portugal) and Porto Santo Island (Madeira)

Data holding centreUniversity of Lisbon, Faculty of Sciences, Guia Marine Laboratory (IMAR network)
CountryPortugal  Portugal
Time periodFrom 1981 (Mira estuary); 1991 (Porto Santo) to 2009
OngoingNo
Geographical area

Estuarine section of the river Mira (Portugal); coastal fringe of Porto Santo Island (Madeira)

Observations 
Parameters

Ammonium and ammonia concentration parameters in water bodies; Zooplankton and zoobenthos morphological parameters; Bacteria generic abundance in water bodies; Carotenoid and flavenoid pigment concentrations in water bodies; Chlorophyll pigment concentrations in water bodies; Vertical velocity of the water column (currents); Zoobenthos generic abundance; Zoobenthos non taxonomy-related wet weight biomass per unit area of the bed; Nitrate concentration parameters in the water column; Nitrite concentration parameters in the water column; Phosphate concentration parameters in the water column; Salinity of the water column; Horizontal velocity of the water column (currents); Silicate concentration parameters in the water column; Temperature of the water column; Concentration of suspended particulate material in the water column; Zoobenthos taxonomic abundance; Zooplankton and zoobenthos physiological condition parameters; Zoobenthos taxonomy-related counts; Phaeopigment concentrations in the water column; Skin temperature of the water column

Instruments

Nutrient analysers; benthos samplers; discrete water samplers; pH sensors

Description 
Summary

Mira estuary: - Different sampling strategies were used (Eulerian and Lagragian approaches). - Objectives were to characterize the dynamics of the estuarine section of the Mira. - Fixed point surveys related to seasonal conditions and include parameters such as: T, salinity; turbidity; speed and direction of the current during 26 or 13 h cycles with 15 min sampling intervals, 1982-1984. - Longitudinal transects also include nutrient concentrations: NO2, NO3, NH3, Si, P, suspended solids (total and organic), pigments (chlorophyll and phaeopigments), bacteria counts (MA, PCA, total and faecal coliphorms and faecal streptococci). - Benthos (one intensive survey - 132 stations - survey was carried out along the whole estuary in a summer situation (1984). Porto Santo: - Intensive surveys following the Aragon oil spill were carried out on different sites along the island shoreline. - Parameters evaluated include: benthic populations (sand and hard substrates); coastal fish; water mass parameters; zooplankton; phytopigments. - Bacteria were evaluated in relation to: total densities; identification of isolates; oil degradation capacity.

OriginatorsUniversity of Lisbon, Faculty of Sciences, Guia Marine Laboratory (IMAR network)
Availability 
OrganisationUniversity of Lisbon, Faculty of Sciences, Guia Marine Laboratory (IMAR network)
AvailabilityUnknown
ContactProf. Luiz Saldanha
Address

University of Lisbon, Faculty of Sciences, Guia Marine Laboratory (IMAR network)
Av. Nossa Senhora do Cabo, 939, Estrada do Guincho
Cascais

2750-374
Portugal

Telephone+351 1 486 9211
Facsimile+351 214869720
Emaillmg-imar@mail.telepac.pt
Administration 
Collating centreIHPT, Hydrographic Institute
Local identifier15008003
Global identifier2173
Last revised2015-09-02