Silica-Scaled Chrysophytes in Large Tributaries of Lake Baikal
| Autor: | Yelena V. Likhoshway, L. M. Sorokovikova, Anna Yu. Bessudova, Irina V. Tomberg |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Flora Poteriophora geography.geographical_feature_category River delta biology Ecology 010604 marine biology & hydrobiology Plant Science 030108 mycology & parasitology Aquatic Science biology.organism_classification Mallomonas striata 01 natural sciences 03 medical and health sciences Taxon Geography Tributary River mouth Ecology Evolution Behavior and Systematics Channel (geography) |
| Zdroj: | Cryptogamie, Algologie. 39:145-165 |
| ISSN: | 1776-0984 0181-1568 |
| DOI: | 10.7872/crya/v39.iss2.2018.145 |
| Popis: | High diversity of silica-scaled chrysophytes was recorded in the Barguzin River mouth and the Selenga River delta. Their flora was represented by 66 species and intra-specific taxa: Chrysosphaerella — 2, Paraphysomonas — 8, Clathromonas — 5, Spiniferomonas — 8, Mallomonas — 29, and Synura — 14. Eight taxa of silica-scaled chrysophytes were observed for the first time in Russia: Chrysosphaerella rotundata, Mallomonas doignonii, M. trummensis, M. corymbosa, Clathromonas poteriophora, Paraphysomonas acuminata acuminata, P. vulgaris, and Synura laticarina. In May, we found scales of Mallomonas striata with morphologically changed structure in the mouth of the Barguzin River and Srednyaya Channel of the Selenga River delta. The flora of silica-scaled chrysophytes studied differs from one tributary to another. We observed only 52 species in the Selenga River delta, whereas in the Barguzin River mouth we identified 35 species. These large rivers affect the flora of Lake Baikal diversifying silica-scaled chrysophytes in its southern and central basins. The total list of species and intra-specific taxa in the Selenga River delta, Barguzin River mouth, and in Lake Baikal includes 72 taxa. Therefore, this area may be considered as a “hotspot” of silica-scaled chrysophytes together with three hotspots observed worldwide earlier. |
| Databáze: | OpenAIRE |
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