{"title":"Taxonomic diversity and structure of benthic diatom taxocenes (Bacillariophyta) along the Crimean Coast (the Black Sea)","authors":"E. Nevrova","doi":"10.17581/bp.2023.12111","DOIUrl":null,"url":null,"abstract":"Diversity and structure of benthic diatom assemblages in 16 Crimean nearshore habitats with varying levels of technogenic bottom area pollution at depths range 0.5–50 m were investigated and accessed using Taxonomic Distinctness indices (TaxDI). In total 793 species and intraspecific taxa, belonging to 736 species, 130 genera, 53 families, 27 orders and 3 classes of Bacillariophyta were registered. The structure of diatom assemblages from polluted sites can be described as having low species richness and a large proportion of mono- and oligospecies branches at the family and order levels. In locations under a moderate anthropogenic impact, the structure was characterised by relatively high species richness and an equal ratio of oligo- and poly-species branches closed at genus level, with the presence of monospecies branches converging at family or order level. Taxocenes in pristine sites were distinguished by the highest species richness and a predominance of poly-species branches closed at different hierarchical levels.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":"247 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Botanica Pacifica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.17581/bp.2023.12111","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0
Abstract
Diversity and structure of benthic diatom assemblages in 16 Crimean nearshore habitats with varying levels of technogenic bottom area pollution at depths range 0.5–50 m were investigated and accessed using Taxonomic Distinctness indices (TaxDI). In total 793 species and intraspecific taxa, belonging to 736 species, 130 genera, 53 families, 27 orders and 3 classes of Bacillariophyta were registered. The structure of diatom assemblages from polluted sites can be described as having low species richness and a large proportion of mono- and oligospecies branches at the family and order levels. In locations under a moderate anthropogenic impact, the structure was characterised by relatively high species richness and an equal ratio of oligo- and poly-species branches closed at genus level, with the presence of monospecies branches converging at family or order level. Taxocenes in pristine sites were distinguished by the highest species richness and a predominance of poly-species branches closed at different hierarchical levels.
期刊介绍:
Botanica Pacifica (BP) publishes peer-reviewed, significant research of interest to a wide audience of plant scientists in all areas of plant biology (structure, function, development, diversity, genetics, evolution, systematics), all levels of organization (molecular to ecosystem), and all plant groups and allied organisms (cyanobacteria, fungi, and lichens). BP requires authors to frame their research questions and discuss their results in terms of contemporary problems of plant biology. While the geographic focus of the journal is the Pacific region, research submissions that demonstrate clear linkages with other regions are welcome. BP aims to foster the exchange of research ideas between countries with diverse cultures and languages.