Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
New knowledge on distribution and abundance of toxic microalgal species and related toxins in the Northwestern Black Sea
Dzhembekova, N.; Moncheva, S.; Slabakova, N.; Zlateva, I.; Nagai, S.; Wietkamp, S.; Wellkamp, M.; Tillmann, U.; Krock, B. (2022). New knowledge on distribution and abundance of toxic microalgal species and related toxins in the Northwestern Black Sea. Toxins 14(10): 685. https://dx.doi.org/10.3390/toxins14100685
In: Toxins. Multidisciplinary Digital Publishing Institute (MDPI): Basel. e-ISSN 2072-6651, meer
|   |
| Author keywords |
Toxic microalgae, light microscopy, metabarcoding, phycotoxins, Black Sea |
| Auteurs | | Top |
- Dzhembekova, N.
- Moncheva, S., meer
- Slabakova, N.
|
- Zlateva, I.
- Nagai, S.
- Wietkamp, S.
|
- Wellkamp, M.
- Tillmann, U.
- Krock, B.
|
| Abstract |
Numerous potentially toxic plankton species commonly occur in the Black Sea, and phycotoxins have been reported. However, the taxonomy, phycotoxin profiles, and distribution of harmful microalgae in the basin are still understudied. An integrated microscopic (light microscopy) and molecular (18S rRNA gene metabarcoding and qPCR) approach complemented with toxin analysis was applied at 41 stations in the northwestern part of the Black Sea for better taxonomic coverage and toxin profiling in natural populations. The combined dataset included 20 potentially toxic species, some of which (Dinophysis acuminata, Dinophysis acuta, Gonyaulax spinifera, and Karlodinium veneficum) were detected in over 95% of the stations. In parallel, pectenotoxins (PTX-2 as a major toxin) were registered in all samples, and yessotoxins were present at most of the sampling points. PTX-1 and PTX-13, as well as some YTX variants, were recorded for the first time in the basin. A positive correlation was found between the cell abundance of Dinophysis acuta and pectenotoxins, and between Lingulodinium polyedra and Protoceratium reticulatum and yessotoxins. Toxic microalgae and toxin variant abundance and spatial distribution was associated with environmental parameters. Despite the low levels of the identified phycotoxins and their low oral toxicity, chronic toxic exposure could represent an ecosystem and human health hazard. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
