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Churilova, T Ya; Berseneva, G P; Georgieva, L V (2004): Light adsorption of phytoplankton and parameters of its biomass and cell biovolumes in the Black Sea in 1998-2000 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.762881, Supplement to: Churilova, TY et al. (2004): Variability in bio-optical characteristics of phytoplankton in the Black Sea. Translated from Okeanologiya, 2004, 44(2), 208-221, Oceanology, 44(2), 192-203

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Abstract:
Bio-optical characteristics of phytoplankton have been observed during two-year monitoring in the western Black Sea. High variability in light absorption coefficient of phytoplankton was due to change of pigment concentration and chlorophyll a specific absorption coefficient. A relationships between light absorption coefficients and chlorophyll a concentration have been found: for the blue maximum (a_ph(440) = 0.0413x**0.628; R**2 = 0.63) and for the red maximum (?_ph(678) = 0.0190x**0.843; R**2 = 0.83). Chlorophyll a specific absorption coefficients decreased while pigment concentration in the Sea increased. Observed variability in chlorophyll a specific absorption coefficient at chlorophyll a concentrations <1.0 mg/m**3 had seasonal features and was related with seasonal change of intracellular pigment concentration. Ratio between the blue and red maxima decreased with increasing chlorophyll a concentration (? = 2.14 x**-0.20; R**2 = 0.41). Variability of spectrally averaged absorption coefficient of phytoplankton (a'_ph ) on 95% depended on absorption coefficient at the blue maximum (y = 0.421x; R**2 = 0.95). Relation of a_ph with chlorophyll a concentration was described by a power function (y = 0.0173x**0.0709; R**2 = 0.65). Change of spectra shape was generally effected by seasonal dynamics of intracellular pigment concentration, and partly effected by taxonomic and cell-size structure of phytoplankton.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 43.545833 * Median Longitude: 31.977500 * South-bound Latitude: 42.916667 * West-bound Longitude: 30.716667 * North-bound Latitude: 44.166667 * East-bound Longitude: 33.216667
Event(s):
CSSCBS * Latitude Start: 44.000000 * Longitude Start: 33.016667 * Latitude End: 44.166667 * Longitude End: 33.216667 * Location: Crimea continental shelf, Black Sea * Method/Device: Water sample (WS)
CWPBS * Latitude Start: 42.916667 * Longitude Start: 30.716667 * Latitude End: 43.166667 * Longitude End: 31.133333 * Location: Central Black Sea * Method/Device: Water sample (WS)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Churilova, TY; Berseneva, GP; Georgieva, LV (2004): (Table 2) Coefficients of specific light adsorption by phytoplankton at 440 nm and 678 nm, their ratios, and pigment packaging in algae cells at 678 nm in the Black Sea in 1998 and 1999. https://doi.org/10.1594/PANGAEA.762879
  2. Churilova, TY; Berseneva, GP; Georgieva, LV (2004): (Table 4) Phytoplankton biomass, relative contributions of diatoms, dinoflagellates and coccoliths, and average cell biovolumes in the Black Sea in 1998-2000. https://doi.org/10.1594/PANGAEA.762880