{"title":"俄罗斯千岛群岛伊图鲁普岛blagodatnoye湖浮游植物种类组成","authors":"T.V. Nikulina, I.V. Motylkova","doi":"10.25221/levanidov.10.16","DOIUrl":null,"url":null,"abstract":"Algological studies conducted in June–August 2021 on the lagoon Blagodatnoye Lake (Iturup Island) and showed a high diversity of species composition of cyanobacteria and algae (274 species and intraspecifi c taxa from eight divisions: Cyanobacteria, Miozoa, Bacillariophyta, Chlorophyta, Charophyta, Criptista, Ochrophyta, Euglenozoa). Diatoms make up a signifi cant share in the formation of algofl ora (73,2 % of the total number of species). Complexes of dominant species in lake plankton are represented by cyanobacteria and diatoms: Aulacoseira granulata and it’s variation A. granulata var. angustissima Aphanizomenon fl os-aquae (August). The maximum values of quantitative indicators of the main dominants reached: N = 1323,3 thousand cells/l, B = 685,5 mg/l for Asterionella formosa, and N = 3646 thousand cells/l, B = 4579,4 mg/l for Aulacoseira granulata. The ecological and geographical characteristics of the algal fl ora of Blagodatnoe Lake were carried out: benthic species (48,2 % of the total number of taxa), indiff erent to salinity change (68,6 %), alkaliphilic (42,3 %), cosmopolitan (70,1 %) species were predominance, and oligosaprobionts and betamesosaprobionts were 35,4 and 33,9 %, respectively.","PeriodicalId":474769,"journal":{"name":"Чтения памяти Владимира Яковлевича Леванидова","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"SPECIES COMPOSITION OF PHYTOPLANKTON OF THE BLAGODATNOYE LAKE (ITURUP ISLAND, KURIL ISLANDS, RUSSIA)\",\"authors\":\"T.V. Nikulina, I.V. Motylkova\",\"doi\":\"10.25221/levanidov.10.16\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Algological studies conducted in June–August 2021 on the lagoon Blagodatnoye Lake (Iturup Island) and showed a high diversity of species composition of cyanobacteria and algae (274 species and intraspecifi c taxa from eight divisions: Cyanobacteria, Miozoa, Bacillariophyta, Chlorophyta, Charophyta, Criptista, Ochrophyta, Euglenozoa). Diatoms make up a signifi cant share in the formation of algofl ora (73,2 % of the total number of species). Complexes of dominant species in lake plankton are represented by cyanobacteria and diatoms: Aulacoseira granulata and it’s variation A. granulata var. angustissima Aphanizomenon fl os-aquae (August). The maximum values of quantitative indicators of the main dominants reached: N = 1323,3 thousand cells/l, B = 685,5 mg/l for Asterionella formosa, and N = 3646 thousand cells/l, B = 4579,4 mg/l for Aulacoseira granulata. The ecological and geographical characteristics of the algal fl ora of Blagodatnoe Lake were carried out: benthic species (48,2 % of the total number of taxa), indiff erent to salinity change (68,6 %), alkaliphilic (42,3 %), cosmopolitan (70,1 %) species were predominance, and oligosaprobionts and betamesosaprobionts were 35,4 and 33,9 %, respectively.\",\"PeriodicalId\":474769,\"journal\":{\"name\":\"Чтения памяти Владимира Яковлевича Леванидова\",\"volume\":\"14 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-06-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Чтения памяти Владимира Яковлевича Леванидова\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.25221/levanidov.10.16\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Чтения памяти Владимира Яковлевича Леванидова","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25221/levanidov.10.16","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
2021年6月至8月在伊图鲁普岛(Iturup Island)的Blagodatnoye湖进行的藻类研究显示，蓝藻和藻类的物种组成具有高度多样性(蓝藻、水藻、硅藻、绿藻、绿藻、隐藻、绿藻、绿藻等8个门类的274种和种内分类群)。硅藻在藻藻的形成中占有重要的份额(占物种总数的73.3%)。湖泊浮游生物的优势种复合体以蓝藻和硅藻为代表:颗粒Aulacoseira granulata及其变种A. granulata var. angustissima aphanizomena os-aquae (August)。主要优势菌的定量指标最大值分别为:台湾Asterionella formosa N = 1323,3千细胞/l, B = 685,5 mg/l, Aulacoseira granata N = 3646,000细胞/l, B = 4579,4 mg/l。分析了该湖藻类群落的生态地理特征:底栖物种(占总类群的48.2%)、对盐度变化不敏感(68.6%)、嗜碱(42.3%)和世界性(70.1%)占优势，寡栖和正栖藻类分别占35,4%和33.9%。
SPECIES COMPOSITION OF PHYTOPLANKTON OF THE BLAGODATNOYE LAKE (ITURUP ISLAND, KURIL ISLANDS, RUSSIA)
Algological studies conducted in June–August 2021 on the lagoon Blagodatnoye Lake (Iturup Island) and showed a high diversity of species composition of cyanobacteria and algae (274 species and intraspecifi c taxa from eight divisions: Cyanobacteria, Miozoa, Bacillariophyta, Chlorophyta, Charophyta, Criptista, Ochrophyta, Euglenozoa). Diatoms make up a signifi cant share in the formation of algofl ora (73,2 % of the total number of species). Complexes of dominant species in lake plankton are represented by cyanobacteria and diatoms: Aulacoseira granulata and it’s variation A. granulata var. angustissima Aphanizomenon fl os-aquae (August). The maximum values of quantitative indicators of the main dominants reached: N = 1323,3 thousand cells/l, B = 685,5 mg/l for Asterionella formosa, and N = 3646 thousand cells/l, B = 4579,4 mg/l for Aulacoseira granulata. The ecological and geographical characteristics of the algal fl ora of Blagodatnoe Lake were carried out: benthic species (48,2 % of the total number of taxa), indiff erent to salinity change (68,6 %), alkaliphilic (42,3 %), cosmopolitan (70,1 %) species were predominance, and oligosaprobionts and betamesosaprobionts were 35,4 and 33,9 %, respectively.
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