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Gukov, Aleksander Yu (2002): Benthos investigations in the Lena Delta. PANGAEA, https://doi.org/10.1594/PANGAEA.758018, Supplement to: Gukov, AY (2002): Monitoring of macro-zoobenthos in the Lena River mouth. Polarforschung, 70, 107-114, hdl:10013/epic.29863.d001

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Abstract:
According to monitoring data gained between 1982-1992, macrobenthos in the Tiksi Bay is characterized by low indices of the total abundance, biomass and taxonomic diversity. 30 macrobenthic species have been recorded in the Tiksi Bay. The bottom biocenoses within the estuarine-arctic water mass consist of widespread eurybiontic boreal-arctic and brackish-water species. The maximal number of species was observed at a depth of 8.5 m. The maximum biomass was recorded on muddy grounds. The studied bottom fauna is characterized by a high population density (from 1160-600 ind/m**2) and low biomass of 15.5-22.4 g/m**2.
The predominant benthic animals of the main Lena River channel 4.7 km upstream Stolb Island are Chironomidae, Plecoptera and Oligochaeta. In total, 48 species of macrobenthos were registered here. In spring the average density of macrozoobenthos in the channel is 680, in summer 770, in autumn 720 and in winter 380 ind/m**2, with the average biomass varying between 2.9 g/m**2 in spring, 7.06 in summer, 4.4 in autumn, and 2.6 in winter.
Project(s):
Coverage:
Median Latitude: 71.988889 * Median Longitude: 127.924444 * South-bound Latitude: 71.650000 * West-bound Longitude: 126.733333 * North-bound Latitude: 72.366667 * East-bound Longitude: 129.066667
Date/Time Start: 1994-01-01T00:00:00 * Date/Time End: 1994-01-01T00:00:00
Event(s):
briz_1 (St.1) * Latitude: 71.650000 * Longitude: 128.866667 * Date/Time: 1994-01-01T00:00:00 * Elevation: -4.2 m * Location: Lena Delta, Siberia, Russia * Campaign: Transdrift-II * Basis: Professor Multanovskiy * Device: Peterson grab (PETG) * Comment: pilot-ship BRIZ
briz_2 (St.2) * Latitude: 71.666667 * Longitude: 129.066667 * Date/Time: 1994-01-01T00:00:00 * Elevation: -8.5 m * Location: Lena Delta, Siberia, Russia * Campaign: Transdrift-II * Basis: Professor Multanovskiy * Device: Peterson grab (PETG) * Comment: pilot-ship BRIZ
briz_3 (St.3) * Latitude: 72.366667 * Longitude: 126.733333 * Date/Time: 1994-01-01T00:00:00 * Elevation: -4.0 m * Location: Lena Delta, Siberia, Russia * Campaign: Transdrift-II * Basis: Professor Multanovskiy * Device: Peterson grab (PETG) * Comment: pilot-ship BRIZ
Size:
2 datasets

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