Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts
The environmental contingency caused by the recent massive arrivals of pelagic sargasso (<i>Sargassum natans</i> and <i>S</i>. <i>fluitans</i>) on Mexico’s Caribbean coasts have given rise to several areas of scientific research. Our work proposed identifying the...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/1424-2818/14/9/758 |
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| author | Francisco Omar López-Fuerte David Alfaro Siqueiros Beltrones Yuriko Jocselin Martínez María del Carmen Altamirano-Cerecedo |
| author_facet | Francisco Omar López-Fuerte David Alfaro Siqueiros Beltrones Yuriko Jocselin Martínez María del Carmen Altamirano-Cerecedo |
| author_sort | Francisco Omar López-Fuerte |
| collection | DOAJ |
| description | The environmental contingency caused by the recent massive arrivals of pelagic sargasso (<i>Sargassum natans</i> and <i>S</i>. <i>fluitans</i>) on Mexico’s Caribbean coasts have given rise to several areas of scientific research. Our work proposed identifying the diatom flora adhered to the thalli of these two sargasso species collected on the coasts of Cancun, Isla Mujeres, and Puerto Morelos. We recorded 184 diatom taxa (all illustrated) from 68 genera. Taxa from the genera <i>Mastogloia</i> (37), <i>Cocconeis</i> (11), <i>Nitzschia</i> (10), <i>Diploneis</i> (8), and <i>Amphora</i> (9) represented 41% of the total, while 44 of these genera were represented by a single species. In the total floristic count, 41 taxa occurred exclusively on <i>S</i>. <i>fluitans</i>, 53 exclusively on <i>S</i>. <i>natans</i> (22 and 29%, respectively) and 90 (49%) were found on both. Species of <i>Navicula</i> were scarce, and <i>Navicula barbara</i> var. <i>densestriata</i> was here transferred to the genus <i>Lyrella</i> (<i>Lyrella barbara</i> var. <i>densestriata</i> (Foged) López-Fuerte & Siqueiros Beltrones comb. nov.). Overall, 17 (9%) of the identified taxa were new recordings for Mexico’s coasts. Supporting the hypothesis proposed, the 37 <i>Mastogloia</i> taxa suggested a tropical affinity, while the high species richness denoted that the surfaces of both sargasso species constituted favorable substrata for the growth of diatom assemblages. |
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| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-08T15:16:29Z |
| publishDate | 2022-09-01 |
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| spelling | doaj.art-a4c14e5b48b04e318ae4a33efd112afa2024-01-10T11:43:32ZengMDPI AGDiversity1424-28182022-09-0114975810.3390/d14090758Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean CoastsFrancisco Omar López-Fuerte0David Alfaro Siqueiros Beltrones1Yuriko Jocselin Martínez2María del Carmen Altamirano-Cerecedo3Departamento Académico de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, Carretera al Sur, km. 5.5, La Paz 23080, Baja California Sur, MexicoDepartamento Plancton y Ecología Marina, Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional S/N, Col. Playa Palo de Santa Rita, La Paz 23096, Baja California Sur, MexicoDepartamento Académico de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, Carretera al Sur, km. 5.5, La Paz 23080, Baja California Sur, MexicoDepartamento Académico de Economía, Universidad Autónoma de Baja California Sur, Carretera al Sur km. 5.5, La Paz 23080, Baja California Sur, MexicoThe environmental contingency caused by the recent massive arrivals of pelagic sargasso (<i>Sargassum natans</i> and <i>S</i>. <i>fluitans</i>) on Mexico’s Caribbean coasts have given rise to several areas of scientific research. Our work proposed identifying the diatom flora adhered to the thalli of these two sargasso species collected on the coasts of Cancun, Isla Mujeres, and Puerto Morelos. We recorded 184 diatom taxa (all illustrated) from 68 genera. Taxa from the genera <i>Mastogloia</i> (37), <i>Cocconeis</i> (11), <i>Nitzschia</i> (10), <i>Diploneis</i> (8), and <i>Amphora</i> (9) represented 41% of the total, while 44 of these genera were represented by a single species. In the total floristic count, 41 taxa occurred exclusively on <i>S</i>. <i>fluitans</i>, 53 exclusively on <i>S</i>. <i>natans</i> (22 and 29%, respectively) and 90 (49%) were found on both. Species of <i>Navicula</i> were scarce, and <i>Navicula barbara</i> var. <i>densestriata</i> was here transferred to the genus <i>Lyrella</i> (<i>Lyrella barbara</i> var. <i>densestriata</i> (Foged) López-Fuerte & Siqueiros Beltrones comb. nov.). Overall, 17 (9%) of the identified taxa were new recordings for Mexico’s coasts. Supporting the hypothesis proposed, the 37 <i>Mastogloia</i> taxa suggested a tropical affinity, while the high species richness denoted that the surfaces of both sargasso species constituted favorable substrata for the growth of diatom assemblages.https://www.mdpi.com/1424-2818/14/9/758Bacillariophytaepiphytesinvasive speciesnew combinationnew records |
| spellingShingle | Francisco Omar López-Fuerte David Alfaro Siqueiros Beltrones Yuriko Jocselin Martínez María del Carmen Altamirano-Cerecedo Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts Diversity Bacillariophyta epiphytes invasive species new combination new records |
| title | Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts |
| title_full | Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts |
| title_fullStr | Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts |
| title_full_unstemmed | Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts |
| title_short | Floristics and Biogeographical Affinity of Diatoms Attached to <em>Sargassum fluitans</em> (Børgesen) Børgesen and <em>Sargassum natans</em> (Linnaeus) Gaillon Arriving on Mexico’s Caribbean Coasts |
| title_sort | floristics and biogeographical affinity of diatoms attached to em sargassum fluitans em borgesen borgesen and em sargassum natans em linnaeus gaillon arriving on mexico s caribbean coasts |
| topic | Bacillariophyta epiphytes invasive species new combination new records |
| url | https://www.mdpi.com/1424-2818/14/9/758 |
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