European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

Distribution and assessment of the red algae Gelidium sesquipedale along the Portuguese continental coast (1983-)

Data holding centreNational Institute of Fisheries Research Instituto Nacional de Investigação Agrária e das Pescas (INIAP) Former IPIMAR
CountryPortugal  Portugal
Time periodFrom 1983 onwards
OngoingYes
Geographical area

Portuguese continental coast - centre and south

Observations 
Parameters

Phytoplankton taxonomic surface area in water bodies; Phytoplankton taxonomic biomass in water bodies; Phytoplankton taxonomic abundance in water bodies; Macroalgae generic abundance in water bodies; Phytoplankton taxonomic volume in water bodies; Phytoplankton growth

Instruments

Plankton nets; optical microscopes

Description 
Summary

Data on biomass, reproduction, growth (apical length) and cover of Gelidium sesquipedale populations have been collected in seven main intralittoral beds of harvest areas. Observations were mainly carried out in summer and autumn, before and after the harvest, since 1983, with some gaps. Large Gelidium beds were mapped after determination of global limits of total and stratified areas with different mean biomasses and covers, using underwater surveys and transects. Seasonal estimations of total biomass (standing stocks) are made in each bed. Analyses of the harvest effort contribute to management recommendations and the establishment of TACs.

OriginatorsNational Institute of Fisheries Research Instituto Nacional de Investigação Agrária e das Pescas (INIAP) Former IPIMAR
Availability 
OrganisationNational Institute of Fisheries Research Instituto Nacional de Investigação Agrária e das Pescas (INIAP) Former IPIMAR
AvailabilityBy negotiation
ContactMarcelo Vasconcelos (President)
Address

National Institute of Fisheries Research Instituto Nacional de Investigação Agrária e das Pescas (INIAP) Former IPIMAR
Av. De Brasilia
Lisboa

1449-006
Portugal

Telephone+351 213010814
Facsimile+351 213015948
Emaildina@ipimar.pt
Administration 
Collating centreIHPT, Hydrographic Institute
Local identifier15040008
Global identifier2326
Last revised2009-10-30