European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

Southern Baltic herring and sprat sexual maturation and sex ratio

Data holding centreNational Marine Fisheries Research Institute (NMFRI)
CountryPoland  Poland
ProjectThe model of sexual maturation of herring and sprat caught in the Polish EEZ in selected groups of years 1980-1999.(NB-27)
Time period01-01-2000 to 31-12-2001
OngoingNo
Geographical area

Southern Baltic Sea - Polish EEZ

Observations 
Parameters

Fish morphology, age and physiology; Fish taxonomy-related counts; Fishery characterisation

Description 
Summary

The materials were sampled over the 1980-1999 period, and due to ICES working groups' request sampling was prolonged to years 2000-2001. Fish samples were collected mostly during research surveys organized by the Sea Fisheries Institute in Gdynia and, to a lesser degree, directly from the catches and landings of the Polish commercial fishing fleet. At least two random samples per month in the pre-spawning and at the beginning of spawning seasons and ICES Sub-division, with no preference to fishing location, were examined. Length measurements of 104,072 herring and 61,176 sprat from the 1980-2001 period and the ichthyological analyses of 13,915 herring and 12,067 sprat specimens formed the basis for the calculations.

OriginatorsNational Marine Fisheries Research Institute (NMFRI)
Availability 
OrganisationNational Marine Fisheries Research Institute (NMFRI)
AvailabilityMoratorium
ContactDr. Wlodzimierz Grygiel (national co-ordinator of IBSSP)
Address

National Marine Fisheries Research Institute (NMFRI)
Kollataja 1
Gdynia

81-332
Poland

Telephone+48 58 6201728
Facsimile+48 58 73 56 110
Emailgrygiel@mir.gdynia.pl
Administration 
Collating centreInstitute of Meteorology and Water Management, Maritime Branch in Gdynia (IMWM MB)
Local identifier21005016
Global identifier1651
Last revised2009-01-15