European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Biological data on oceanic blue jack mackerel, and chub mackerel of the Azores (1983 -2009)

Data holding centreUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
CountryPortugal  Portugal
Time periodFrom 1983 to 2009
OngoingNo
Geographical area

All the EEZ of the Azores Archipelago (mainly Faial island)

Observations 
Parameters

Fish morphology, age and physiology; Fish abundance in water bodies; Fish taxonomy-related counts; Fish behaviour

Instruments

Pelagic trawl nets

Description 
Summary

Biological database of the blue jack mackerel and chub mackerel (Trachurus picturatus and Scomber japonicus) of the Azores. The mackerels represented 84.5 per cent of the Azorean small pelagic fishes landings (excluding tunas). Biometric data of 2530 specimens were used to obtain the following weight-length relationship: Wt = 0.00819 times length to the power of 3.11, and the parameters of the von Bertalanffy growth equation: Loo = 52.9 cm, k = 0.20 per year, t0 = -0.23 year. Age has been determined by otolith rings count.

OriginatorsUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
Availability 
OrganisationUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
AvailabilityNo access
ContactNot supplied (Director of the Department (DOP/UA))
Address

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

9901-862
Portugal

Telephone+351 92 22988/22944/23460/22945
Facsimile+351 292 200 411
Emailpereira@dop.uac.pt
Administration 
Collating centreIHPT, Hydrographic Institute
Local identifier15037006
Global identifier2288
Last revised2015-09-03