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Krupatkina, D K; Ostrovskaya, Nadezhda A (1984): Chlorophyll-a concentrations in phytoplankton fractions in waters of the Black Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.756243, Supplement to: Krupatkina, DK; Ostrovskaya, NA (1984): Variability and daily chlorophyll-a patterns in large and small phytoplankton fractions in various regions of the Black Sea in late summer. Oceanology, 24(6), 727-732

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Abstract:
Comparison of daily and diel variability of chlorophyll-a concentration at three long-term stations in meso- and eutrophic regions indicates that their values are similar. Daily patterns of deviation in chlorophyll concentration in small and large phytoplankton fraction from average daily values are presented. In conformity with a hypothesis of daily removal rhythms correlated with changes in diel light-dark periods, it was concluded that the mesotrophic region during the dark period is characterized by predominance of grazing on large phytoplankton in the upper layers and accumulation of detritus from cell fragments in the lower layer, while during the light period smaller phytoplankton predominantly grazed. The eutrophic region is characterized by predominance of grazing on small phytoplankton fraction in the upper layers during the dark period and settling out of fecal pellets containing chlorophyll into deeper depths; but during the light period, large phytoplankton predominantly grazed throughout the whole water layer.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 44.900250 * Median Longitude: 30.779250 * South-bound Latitude: 42.267000 * West-bound Longitude: 28.117000 * North-bound Latitude: 46.000000 * East-bound Longitude: 32.500000
Date/Time Start: 1980-08-22T00:00:00 * Date/Time End: 1980-10-13T00:00:00
Event(s):
PV-1094 * Latitude: 42.267000 * Longitude: 28.117000 * Date/Time Start: 1980-08-22T00:00:00 * Date/Time End: 1980-08-25T00:00:00 * Location: Black Sea * Method/Device: Multiple investigations (MULT)
PV-1228 * Latitude: 46.000000 * Longitude: 30.000000 * Date/Time Start: 1980-09-28T00:00:00 * Date/Time End: 1980-09-30T00:00:00 * Location: Black Sea * Method/Device: Multiple investigations (MULT)
PV-1244 * Latitude: 45.667000 * Longitude: 32.500000 * Date/Time Start: 1980-10-09T00:00:00 * Date/Time End: 1980-10-13T00:00:00 * Location: Black Sea * Method/Device: Multiple investigations (MULT)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Krupatkina, DK; Ostrovskaya, NA (1984): (Table 1) Temporal variations of chlorophyll-a concentrations in small, large and total phytoplankton fractions in the subsurface seawater layer at Station PV-1244. https://doi.org/10.1594/PANGAEA.756237
  2. Krupatkina, DK; Ostrovskaya, NA (1984): (Table 4a) Chlorophyll-a concentrations of the small, large and total phytoplankton fractions in the light and dark periods of a day at Station PV-1094. https://doi.org/10.1594/PANGAEA.756240
  3. Krupatkina, DK; Ostrovskaya, NA (1984): (Table 4b) Chlorophyll-a concentrations of the small, large and total phytoplankton fractions in the light and dark periods of a day at Station PV-1228. https://doi.org/10.1594/PANGAEA.756241
  4. Krupatkina, DK; Ostrovskaya, NA (1984): (Table 4c) Chlorophyll-a concentrations of the small, large and total phytoplankton fractions in the light and dark periods of a day at Station PV-1244. https://doi.org/10.1594/PANGAEA.756242