Ostreopsis spp.: Morphology, proliferation and toxic profile in the North-West of Agadir (North Atlantic Ocean).
| Type | Article | ||||||||||||
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| Date | 2022-11 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Alkhatib Houda 1, 2, Bennouna Asmae2, Abouabdellah Rachid2, Amzil Zouher3, Herve Fabienne3, Moussavou-Mouity Cyrielle Amour4, Elayoubi Salaheddine2, Bekkali Mohammed1, Fahde Abdelilah1 |
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| Affiliation(s) | 1 : Hassan II University, Faculty of Sciences Ain Chock, Casablanca, Morocco 2 : National Institute of Fisheries Research (INRH), Agadir-LSSMM regional center, Morocco 3 : IFREMER, Unit PHYTOX, F-44311 Nantes Cedex 3, France 4 : Hassan First University of Settat, Morocco |
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| Source | Regional Studies In Marine Science (2352-4855) (Elsevier BV), 2022-11 , Vol. 56 , P. 102713 (11p.) | ||||||||||||
| DOI | 10.1016/j.rsma.2022.102713 | ||||||||||||
| WOS© Times Cited | 3 | ||||||||||||
| Keyword(s) | Ostreopsis cf.siamensis, Ostreopsis cf.ovata, Ovatoxin, Microscopy, LC-MS/MS | ||||||||||||
| Abstract | The distribution of benthic Ostreopsis species is poorly known in the Moroccan coasts. The current study is aiming to investigate: i) the distribution of Ostreopsis spp. cells on macroalgae and in the seawater column of the Cape Ghir area (North-West of Agadir) during the summer season of Ostreopsis from July 15 to November 17, 2020; ii) the toxic profile at the level of the three matrices (benthic Ostreopsis attached to macroalgae, Ostreopsis in the water column and mussels) via chemical analysis using mass spectrometry. A taxonomic study of Ostreopsis spp. was carried out using the light and inverted optical microscopes. Chemical analysis showed the presence of ovatoxins (OvTX-A and OvTX-B) in Ostreopsis samples in low quantities, in the order of fg.cell −1 and at levels below the limit of quantification (0.04 g.mL −1) in mussels. Morphological observations showed that the cells were ovoid and flattened, large, and ventrally pointed with a dorsoventral diameter (DV) and width (W) of 57- and 33-, respectively, and a dorsoventral/anteroposterior diameter (DV/AP) of about 3.23. |
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