Dataset
EurOBIS MeasurementOrFact Open in mapper Explore occurrences
Phytoplankton data collected in the Black Sea, Bosphorus area, Marmara Sea, Aegean Sea, Ionian Sea, Tunisian Strain, and Mediterranean Sea during 65 cruise of the R/V "Kovalevskiy" and processed by Lyudmila Georgieva. The samples were taken with 6 liter bathometers at standard depths and in the thermocline layer. The standard sedimentation technique for samples preparation (Usachev, 1926) was used. Samples were preserved by buffered formalin 40% and were settled within 30 days. Then a volume of water was siphoned off and samples were concentrated to 10-20 ml. After thorough mixing the subsamples (0.05 or 0.1 ml) were transferred to the counting chamber. Organisms were counted in two subsamples at ×300 - 400 magnification.
Citation: Lyudmila Georgieva (2012). Phytoplankton data collected in the Black Sea, Bosphorus area, Marmara Sea, Aegean Sea, Ionian Sea, Tunisian Strait, and Mediterranean Sea during the 65th cruise of the R/V "Kovalevskiy" in 1969-1970. National Academy of Sciences of Ukraine; Institute of Biology of the Southern Sea
Published: September 17, 2025 at 09:54
URL: http://ipt.vliz.be/eurobis/resource?r=phytoplankton_blacksea_1969_1970
Lyudmila Georgieva
National Academy of Sciences of Ukraine; Institute of Biology of the Southern Seas
Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)
| Field | Missing | Invalid | |
|---|---|---|---|
| coordinateUncertaintyInMeters | 4,156 |
|
|
| scientificNameID | 203 |
|
The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.
| Flag | Dropped | Records | |
|---|---|---|---|
| NO_ACCEPTED_NAME | 573 |
|
|
| MARINE_UNSURE | 262 |
|
|
| NO_MATCH | 203 |
|