Ichthyoplankton in the Central Baltic
Data set information
| Query EDMED |
| General | |
| Data holding centre | Latvian Fish Resources Agency |
| Country | Latvia  |
| Time period | 1973-1991. ICES subdivisions 25,26,28 and 29 - Coastal zone of Soviet Union. 1991-2004. ICES subdivision 26 and 28 - Coastal zone of Latvia |
| Ongoing | No |
| Geographical area | Baltic Sea |
| Observations | |
| Parameters | Fish non taxonomy-related abundance per unit volume of the water column; Fish behaviour |
| Instruments | Plankton nets |
| Description | |
| Summary | Sample collections were done in March - August, 3 to 5 surveys per year. Samples were collected at the hydrological stations, since 1992 a standard grid of stations is used. Ichthyoplankton net is operated vertically from the bottom (or 140 m depth in the deepest places) to the water surface; the net is also towed in the surface layer for 10 minutes while vessel is going on circulation at a speed of ca. 3 knots. Data processing: the total of fish eggs and larvae is determined in the whole sample and the total number of eggs and larvae by species per 1 m2 (vertical hauls) or per 10 minutes (towing in the surface layer) is determined. |
| Originators | Latvian Fish Resources Agency |
| Availability | |
| Organisation | Latvian Fish Resources Agency |
| Availability | By negotiation |
| Contact | Andrei Makarchouk (Researcher) |
| Address | Latvian Fish Resources Agency |
| Telephone | +371 67613775 |
| Facsimile | +371 67616946 |
| maris.vitins@latzra.lv | |
| Administration | |
| Collating centre | Latvian Institute of Aquatic Ecology |
| Local identifier | 43002002 |
| Global identifier | 1467 |
| Last revised | 2009-01-30 |
