1932-1991 - 90 miles off coast, from 1991 - 30 miles off capes of Kaliakra, Galata and Emine, Varna and Burgas bays and Varna and Beloslav lakes

Fish taxonomy-related abundance per unit area of the bed; Fish taxonomy-related counts; Fish non taxonomy-related abundance per unit volume of the water column; Fish behaviour

These data sets include continuous data for 4 fish species: Sprattus sprattus, Engraulis encrasicolus, Merlangus merlangus; Trachurus mediterraneus ponticus; information with some gaps for - Psetta maxima. Data sets include information about: fish length, weight, age, sex, maturity, condition factor, growth, recruitment, fish stock density (some from acoustic records), statistics for catches and biochemical and genetic analyses. Observations are made weekly in general (irregular since 1932, regular since 1953). For some species the oldest info is from 1925.

Institute of Fishery Resources
4 Primorski Blvd P.O. Box 72
Varna

9000
Bulgaria