Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria?
Rocky seabeds, as an integral part of ecotopes in marine ecosystems, are actively inhabited by diatoms and cyanobacteria. It is currently unknown whether the element contents in the surface layer of seabed rocks affect the epilithon species composition and abundance in microphytobenthos communities...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/8/1569 |
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| author | Anastasiia Blaginina Daria Balycheva Ekaterina Miroshnichenko Larisa Ryabushko Sergey Kapranov Sophia Barinova Denis Lishaev |
| author_facet | Anastasiia Blaginina Daria Balycheva Ekaterina Miroshnichenko Larisa Ryabushko Sergey Kapranov Sophia Barinova Denis Lishaev |
| author_sort | Anastasiia Blaginina |
| collection | DOAJ |
| description | Rocky seabeds, as an integral part of ecotopes in marine ecosystems, are actively inhabited by diatoms and cyanobacteria. It is currently unknown whether the element contents in the surface layer of seabed rocks affect the epilithon species composition and abundance in microphytobenthos communities in the sea. The results of this study on the rock surface element composition and correlation analysis of the element contents with the abundance of epilithon diatoms and cyanobacteria in three bays in Sevastopol (Black Sea) are presented. Ca, Fe, and Si were the major elements with the largest weight fraction in the rock surface layer. Using cluster analysis, the differentiation of samples in the content and distribution of these three elements was shown. In total, 63 taxa of diatoms and 20 species of cyanobacteria were found, with their abundance ranging from 14,000 to 17,6000 cells/cm<sup>2</sup> and from 12,000 to 1,198,000 cells/cm<sup>2</sup>, respectively. In general, it was found that the elemental composition of the rock surface is not a decisive factor affecting the total abundance of the benthic diatom and cyanobacterial communities as no strong correlations with any element contents were observed. However, when analyzing the abundance of populations of certain largely non-dominant species, the majority of diatoms showed noticeable (<i>r</i> = 0.5–0.7) to very high (<i>r</i> = 0.9–0.99) correlations with Fe. The highest positive correlations were noted for the diatoms <i>Bacillaria paxillifer</i> and <i>Navicula directa</i> with Fe. For the cyanobacteria <i>Chroococcus minutus</i>, <i>Pseudanabaena minima</i>, and <i>Spirulina subsalsa,</i> strong positive correlations with Ca and negative correlations with Si were observed. The correlations with Fe were very strong and negative for <i>Lyngbya confervoides</i> and strong and positive for <i>Kamptonema laetevirens</i> and <i>Phormidium holdenii</i>. |
| first_indexed | 2024-03-10T23:49:35Z |
| format | Article |
| id | doaj.art-8553759e40cf4d74bc24bf949e4cb61b |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T23:49:35Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-8553759e40cf4d74bc24bf949e4cb61b2023-11-19T01:45:57ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-08-01118156910.3390/jmse11081569Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria?Anastasiia Blaginina0Daria Balycheva1Ekaterina Miroshnichenko2Larisa Ryabushko3Sergey Kapranov4Sophia Barinova5Denis Lishaev6A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaA.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaA.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaA.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaA.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaInstitute of Evolution, University of Haifa, Mount Carmel, Haifa 498838, IsraelA.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 299011 Sevastopol, RussiaRocky seabeds, as an integral part of ecotopes in marine ecosystems, are actively inhabited by diatoms and cyanobacteria. It is currently unknown whether the element contents in the surface layer of seabed rocks affect the epilithon species composition and abundance in microphytobenthos communities in the sea. The results of this study on the rock surface element composition and correlation analysis of the element contents with the abundance of epilithon diatoms and cyanobacteria in three bays in Sevastopol (Black Sea) are presented. Ca, Fe, and Si were the major elements with the largest weight fraction in the rock surface layer. Using cluster analysis, the differentiation of samples in the content and distribution of these three elements was shown. In total, 63 taxa of diatoms and 20 species of cyanobacteria were found, with their abundance ranging from 14,000 to 17,6000 cells/cm<sup>2</sup> and from 12,000 to 1,198,000 cells/cm<sup>2</sup>, respectively. In general, it was found that the elemental composition of the rock surface is not a decisive factor affecting the total abundance of the benthic diatom and cyanobacterial communities as no strong correlations with any element contents were observed. However, when analyzing the abundance of populations of certain largely non-dominant species, the majority of diatoms showed noticeable (<i>r</i> = 0.5–0.7) to very high (<i>r</i> = 0.9–0.99) correlations with Fe. The highest positive correlations were noted for the diatoms <i>Bacillaria paxillifer</i> and <i>Navicula directa</i> with Fe. For the cyanobacteria <i>Chroococcus minutus</i>, <i>Pseudanabaena minima</i>, and <i>Spirulina subsalsa,</i> strong positive correlations with Ca and negative correlations with Si were observed. The correlations with Fe were very strong and negative for <i>Lyngbya confervoides</i> and strong and positive for <i>Kamptonema laetevirens</i> and <i>Phormidium holdenii</i>.https://www.mdpi.com/2077-1312/11/8/1569diatomscyanobacteriacommunityrocksepilithonelements |
| spellingShingle | Anastasiia Blaginina Daria Balycheva Ekaterina Miroshnichenko Larisa Ryabushko Sergey Kapranov Sophia Barinova Denis Lishaev Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? Journal of Marine Science and Engineering diatoms cyanobacteria community rocks epilithon elements |
| title | Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? |
| title_full | Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? |
| title_fullStr | Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? |
| title_full_unstemmed | Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? |
| title_short | Does the Elemental Composition of Rock Surfaces Affect Marine Benthic Communities of Diatoms and Cyanobacteria? |
| title_sort | does the elemental composition of rock surfaces affect marine benthic communities of diatoms and cyanobacteria |
| topic | diatoms cyanobacteria community rocks epilithon elements |
| url | https://www.mdpi.com/2077-1312/11/8/1569 |
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