European Directory of Marine Environmental Data (EDMED)

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General
Data set name

NAFO Portuguese Fisheries - North West Atlantic (1989-92)

Data holding centreNational Institute of Fisheries Research Instituto Nacional de Investigação Agrária e das Pescas (INIAP) Former IPIMAR
CountryPortugal  Portugal
Time periodFrom 1989 to 1992
OngoingNo
Geographical area

Northwest Atlantic (NAFO Regulatory Area)

Observations 
Parameters

Fish morphology, age and physiology; Fish abundance in water bodies; Fish taxonomy-related counts; Fish and shellfish catch statistics; Fishing by-catch; Fishery characterisation

Instruments

Pelagic trawl nets; cameras; manual biota samplers; optical microscopes

Description 
Summary

Due to the present FAR project no. MA.1.240, Portugal has greatly expanded its sampling at sea since 1989. During 1991 the Portuguese Sampling Programme had covered the stern and side trawl fishing in Div. 3L, 3M, 3N and 3O and the gillnet fishing in Div. 3M, 3N and 3O, through the sampling of 4 trawl and 3 gillnet trips. Most of the vessels have been sampling since 1989. All catch and effort data are made available through direct consultation with the captain's logbook records on board ship. According to the NAFO Sampling Programme, length sampling is conducted for cod, redfish, American plaice, yellowtail flounder, witch flounder and Greenland halibut. Age sampling is conducted for cod, American plaice and yellowtail flounder. Altogether, in 1991, a total of 123,157 fish were measured and 11,736 otoliths collected for age determination, corresponding to a total sampling weight of 220,157 Kg. The sampling of the redfish catches is carried out by species although almost all the catches in Div. 3L and 3M are dominated by Sedbastes mentella. For the redfish fishery in Div. 3M, catch at age is derived from the S. mentella age/length key of the annual EC bottom trawl survey. The final results are presented on a gear/division/month basis and include independent estimates of the total Portuguese effort in NAFO standard units, length and age composition of the catches, catches per unit effort in weight and in number at age, mean weights at age and by-catch rates. This information has been used regularly in the NAFO Scientific Council's assessments.

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
AvailabilityOrganisation
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 identifier15040010
Global identifier2328
Last revised2009-10-30