Southern Baltic herring and sprat sexual maturation and sex ratio
Data set information
| Query EDMED |
| General | |
| Data holding centre | National Marine Fisheries Research Institute |
| Country | Poland  |
| Project | The model of sexual maturation of herring and sprat caught in the Polish EEZ in selected groups of years 1980-1999.(NB-27) |
| Time period | 01-01-2000 to 31-12-2001 |
| Ongoing | No |
| 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. |
| Originators | National Marine Fisheries Research Institute |
| Availability | |
| Organisation | National Marine Fisheries Research Institute |
| Availability | Moratorium |
| Contact | Dr. Wlodzimierz Grygiel (national co-ordinator of IBSSP) |
| Address | National Marine Fisheries Research Institute |
| Telephone | +48 58 6201728 |
| Facsimile | +48 58 73 56 110 |
| grygiel@mir.gdynia.pl | |
| Administration | |
| Collating centre | Institute of Meteorology and Water Management - National Research Institute, Poland |
| Local identifier | 21005016 |
| Global identifier | 1651 |
| Last revised | 2009-01-15 |
