Benthos investigations in the Lena Delta
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2002
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| _version_ | 1867167665205805056 |
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| author | Gukov, Aleksander Yu |
| author_facet | Gukov, Aleksander Yu |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_758018 |
| institution | PANGAEA |
| language | en |
| publishDate | 2002 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Benthos investigations in the Lena Delta Gukov, Aleksander Yu briz_1; briz_2; briz_3; Laptev Sea System; Lena Delta, Siberia, Russia; LSS; Peterson grab; PETG; Professor Multanovskiy; St.1; St.2; St.3; Transdrift-II 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. |
| title | Benthos investigations in the Lena Delta |
| topic | briz_1; briz_2; briz_3; Laptev Sea System; Lena Delta, Siberia, Russia; LSS; Peterson grab; PETG; Professor Multanovskiy; St.1; St.2; St.3; Transdrift-II |
| url | https://doi.org/10.1594/PANGAEA.758018 |