Biological data and stock assessment of the sparid fishes of th Azores (1982 - 2009)

Data set information

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Data holding centreUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
CountryPortugal  Portugal
Time periodFrom 1982 to 2009
Geographical area

All the EEZ of the Azores Archipelago (mainly Faial isla


Fish morphology, age and physiology; Fish abundance in water bodies; Fish taxonomy-related abundance per unit area of the bed; Fish taxonomy-related counts; Fish behaviour; Fish and shellfish catch statistics


Pelagic trawl nets


Biological database of Pagellus bogaraveo (blackspot seabream), Pagr pagrus (red porgy), Pagellus acarne (axillary bream), Diplodus sargus (white seabream) and Boops boops (striped bigeye). Reproduction of P. bogaraveo: length at first maturity, spawning period, fecun and hermaphroditism, were studied. Otoliths were used to determine the age and growth of P. bogaraveo: the occurrence of annuli on the otoliths was confirmed Maximum age of fish collected was 15 years and the parameters of the von Bertalanffy equation of growth in length were: Loo = 57.45, k = 0.102 and t0 = 1.13. The length-weight relationship was done. Virtual Population Analysis (VP) was done.

OriginatorsUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)

Anon (1983) Preliminary studies of the blackspot seabream, Pagellus bogaraveo (Brunnich 1768) in Azorean waters., International Council for the Exploration of the Sea (ICES), C.M. 1983/G:7: 15pp.; Anon (1986) O goraz Pagellus bogaraveo (Brunnich 1768) do mar dos Acores. Crescimento e reproducao. Relatorio apresentado a Universidade dos Acores para acesso a categoria de Assistente de Investigacao., Departamento de Oceanografia Pescas (UA): 93pp.; Anon (1987) Analise das capturas de goraz e abrotea nos Acores. Comunicacao apresentada na Semana das Pescas dos Acores., Relatorio da 7em Semana das Pesca dos Acores: 191 195pp.; Anon (1988) Virtual Population Analysis of Pagellus bogaraveo (Brunnich 1768) fr the Azores., International Council for the Exploration of the Sea (ICES) C.M. 1988/G:19: 9pp.; Anon (1989) Crescimento comparativo e morfometria de goraz Pagellus bogaraveo (B 1768) dos Acores, desenvolvido em cativeiro e selvagem., Poster apresentado no Seminario de Aquacultura em Portugal.; Anon (1989) Avaliacao do stock acoreano de goraz., Relatorio da 9em Semana das Pe dos Acores: 231-238.; Anon (1989) The Azorean blackspot seabream, Pagellus bogaraveo (Brunnich 1768) (Teleostei: Sparidae): Age and growth., Cybium, 13 (4): 347-355.; Anon (1990) The Azorean blackspot seabream Pagellus bogaraveo (Brunnich 1768) (Teleostei: Sparidae): Reproductive cycle, maturity and fecundity., Cybium, 14 151-159.; Anon (1991) Estado de exploracao do stock acoriano de goraz., Poster apresentado 11em Semana das Pescas dos Acores.

OrganisationUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
AvailabilityBy negotiation
ContactNot supplied (Director of the Department (DOP/UA))

University of Azores, Department of Oceanography and Fisheries (IMAR network)
Rua Prof. Dr. Frederico Machado


Telephone+351 92 22988/22944/23460/22945
Facsimile+351 292 200 411
Collating centreHydrographic Institute
Local identifier15037009
Global identifier2291
Last revised2015-09-03