In the course of a preliminary sampling program, oligochaetes were collected along two transects in soft sediments in Lake Baikal. The number of oligochaetes present in the samples was counted, without distinguishing between species. The results suggest an exponential decrease in number of individua
Oligochaete fauna of Lake Baikal
โ Scribed by Ljudmila N. Snimschikova; Tamara W. Akinshina
- Book ID
- 104639663
- Publisher
- Springer
- Year
- 1994
- Tongue
- English
- Weight
- 719 KB
- Volume
- 278
- Category
- Article
- ISSN
- 1573-5141
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โฆ Synopsis
Oligochaetes are one of the most abundant groups of invertebrates in Lake Baikal. They compose up to 70-90% of the biomass and numbers of zoobenthos and are distributed from the water edge to the maximum depth. There are 207 identified species and subspecies belonging to 44 genera and seven families, of which 160 species and 13 genera are endemic. Many are relict species. The main peculiarities of oligochaete fauna of Lake Baikal are: immiscibility of its ecologically different complexes (Palaearctic and Baikalian), its antiquity and heterogeneity, and intense radiation of the species.
๐ SIMILAR VOLUMES
The profundal macroinvertebrates, particularly the oligochaetes, of Lake Ledro (Trento, Italy), that has recently undergone eutrophication, were studied. A statistical approach of random sampling was used to study the distribution and abundance of the oligochaete species. The optimum sample number