Vedernikov, Vladimir I; Bondur, V G; Vinogradov, Mikhail E; Landry, Michael R; Tsidilina, M N (2007): Plankton biomass in the Mamala Basin (Oahu Island, Hawaii Islands) under antropogenic influence in August-September of 2002-2004 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.763919, Supplement to: Vedernikov, VI et al. (2007): Anthropogenic influence on the planktonic community in the basin of Mamala Bay (Oahu Island, Hawaii) based on field and satellite data. Translated from Okeanologiya, 2007, 47(2), 241-258, Oceanology, 47(2), 221-237, https://doi.org/10.1134/S0001437007020099
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Abstract:
Anthropogenic impact on biomass of coastal plankton communities caused by submerged disposal of urban sewage waters (dumping) was studied. Observations were carried out in August-September of 2002-2004 in the Mamala Bay (Oahu Island, Hawaii Islands) using satellite and straight sea measurements. An analysis of variability of integral indicators of the water column determined on the basis of on-board measurements allowed us to divide them into two groups: elements most sensitive to pollution (heterotrophic bacteria (H-Bact), phototrophic cyanobacteria Synechococcus spp. (SYN), and chlorophyll a (CHLa)) and elements that manifested episodic positive dependence on inflow of polluted waters (heterotrophic unicellular eukaryotes, small unicellular algae, phototrophic green bacteria Prochlorococcus spp., as well as total biomass of microplankton). It was shown that submerged waste water disposal in the region of the diffuser of the dumping device led to insignificant (aver. 1.2-1.4 times) local increase in integral biomass of H-Bact, SYN, and in concentration of CHLa. Similar but sharper (aver. 1.5-2.1 times) increase in these parameters was found in water layers with maximal biomasses. Possible pathways of disposed waters (under the pycnocline, at its upper boundary, and in the entire mixed layer) were analyzed on the basis of studying vertical displacement of biomasses of H-Bact, SYN, and prochlorophytes. Possibility of using optical anomalies distinguished from satellite data as markers of anthropogenic eutrophication caused by dumping was confirmed. Application of such markers depends on water transparency and on shapes of curves of vertical distribution of autotrophic organisms.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 21.272007 * Median Longitude: -157.905835 * South-bound Latitude: 21.254000 * West-bound Longitude: -157.936000 * North-bound Latitude: 21.283000 * East-bound Longitude: -157.841000
Date/Time Start: 2002-09-02T00:00:00 * Date/Time End: 2004-08-21T00:00:00
Event(s):
Mamala-B1-02 * Latitude: 21.283000 * Longitude: -157.909000 * Date/Time: 2002-09-02T00:00:00 * Elevation: -60.0 m * Location: Mamala Bay, Oahu Island * 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
- Vedernikov, VI; Bondur, VG; Vinogradov, ME et al. (2007): (Table 1) Location of stations within the Malama Bay with respect to the diffuser, biomasses of heterotrophic bacteria and their percentages relative to biomasses at background stations. https://doi.org/10.1594/PANGAEA.763913
- Vedernikov, VI; Bondur, VG; Vinogradov, ME et al. (2007): (Table 2) Concentration of chlorophyll a and biomass of different planktonic communities at stations in the area of the diffuser in the Mamala Bay. https://doi.org/10.1594/PANGAEA.763915
- Vedernikov, VI; Bondur, VG; Vinogradov, ME et al. (2007): (Table 4) Eutrophication factors in the Mamala Bay calculated from integral biomasses of different planktonic communities and integral content of chlorophyll a. https://doi.org/10.1594/PANGAEA.763917
- Vedernikov, VI; Bondur, VG; Vinogradov, ME et al. (2007): (Table 5) Eutrophication factors in the Mamala Bay calculated from maximal biomasses of different planktonic communities and concentations of chlorophyll a in water layers. https://doi.org/10.1594/PANGAEA.763918