The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact?
11 pages, 28 figures
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2012-11
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dig-icm-es-10261-614672020-11-27T19:33:25Z The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? Stoyneva, Maya P. Descy, Jean-Pierre Balagué, Vanessa Compère, Pierre Leitao, Maria Sarmento, Hugo 11 pages, 28 figures The coccal unicellular green algal genus Tetraëdron Kütz. ex Korshikov, which can be easily identified by its typical polygonal shape, is a common member of freshwater plankton and metaphyton, frequently observed in lowland temperate and tropical waters. During the analysis of samples from tropical Lake Kivu (Eastern Africa), we found an interesting “lemon-shaped” alga, which, after observations in light microscope and scanning electron microscope, had been listed as Tetraëdron sp. Isolation in pure culture allowed a deeper study on morphology at different stages of the life cycle and the partial sequencing of the 18S rDNA. The results from the different combined approaches confirmed that it belongs to the species Tetraëdron minimum (A. Braun) Hansg. The unusual “lemon-shaped” forms predominant in Lake Kivu are young stages of the life cycle. This study contributes to the knowledge of the morphological variability, reproduction, and resting stages of T. minimum and discusses the reasons for the dominance of such unusual shape found in Lake Kivu, a lake strongly impacted by human activities as resulted by the large-scale biomanipulation following the introduction of the “Tanganyika sardine,” Limnothrissa miodon (Boulenger, 1906), at the end of the 1950s Hugo Sarmento’s work was supported by the Spanish MCyI (Juan de la Cierva Fellowship JCI-2008-2727) and AGLOM project(CGL2010-11556-E). This study was also carried out in the framework of the ECOSYKI Project, supported by the CUD (Commission Universitaire pour le Développement de la Communauté française de Belgique). Part of the work of Maya Stoyneva and her participation at the 16th IAP meeting was supported by CEBDER project of the National Science Fund of the Ministry of Education of Bulgaria (D002-15/17.2.2009) Peer reviewed 2012-11-29T08:17:42Z 2012-11-29T08:17:42Z 2012-11 artículo http://purl.org/coar/resource_type/c_6501 Hydrobiologia 698(1): 273-283 (2012) 0018-8158 http://hdl.handle.net/10261/61467 10.1007/s10750-012-1092-2 1573-5117 en https://doi.org/10.1007/s10750-012-1092-2 none Springer |
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English |
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11 pages, 28 figures |
| format |
artículo |
| author |
Stoyneva, Maya P. Descy, Jean-Pierre Balagué, Vanessa Compère, Pierre Leitao, Maria Sarmento, Hugo |
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Stoyneva, Maya P. Descy, Jean-Pierre Balagué, Vanessa Compère, Pierre Leitao, Maria Sarmento, Hugo The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| author_facet |
Stoyneva, Maya P. Descy, Jean-Pierre Balagué, Vanessa Compère, Pierre Leitao, Maria Sarmento, Hugo |
| author_sort |
Stoyneva, Maya P. |
| title |
The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| title_short |
The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| title_full |
The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| title_fullStr |
The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| title_full_unstemmed |
The queer Tetraëdron minimum from Lake Kivu (Eastern Africa): is it a result of a human impact? |
| title_sort |
queer tetraëdron minimum from lake kivu (eastern africa): is it a result of a human impact? |
| publisher |
Springer |
| publishDate |
2012-11 |
| url |
http://hdl.handle.net/10261/61467 |
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