Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/26144
Title: Distribution of resting cysts of the potentially toxic dinoflagellate Alexandrium pseudogonyaulax in recently-deposited sediment within Bizerte Lagoon (Mediterranean coast, Tunisia)
Authors: Trik, Habiba Zmerli
Daly-Yahia, Ons Kefi
Malouche, Dhafer
Komiha, Yosr
Deidun, Alan
Brahim, Mouldi
laabir, Mohamed
Keywords: Alexandrium tamarense
Algae -- Mediterranean Sea
Toxic marine algae -- Mediterranean Sea
Marine sediments -- Mediterranean Sea
Issue Date: 2014
Publisher: Elsevier Ltd.
Citation: Triki, H. Z., Daly-Yahia, O. K., Malouche, D., Komiha, Y., Deidun, A., & Brahim, M. (2014). Distribution of resting cysts of the potentially toxic dinoflagellate Alexandrium pseudogonyaulax in recently-deposited sediment within Bizerte Lagoon (Mediterranean coast, Tunisia). Marine Pollution Bulletin, 84(1-2), 172-181.
Abstract: This study investigated the spatial distribution of Alexandrium pseudogonyaulax resting cysts in recently deposited sediment of Bizerte lagoon (South-Western Mediterranean, Tunisia). This lagoon is the subject of many anthropogenic impacts, such as holding important fishing and aquaculture activities. A. pseudogonyaulax has been shown to produce Goniodomin A, which is a biologically-active compound. We showed that this dinoflagellate produces two types of resting cysts, which could be distinguished by the presence or the absence of a paratabulate wall. The average cyst density across the whole lagoon was rather high, reaching 639 cysts g1 of dry sediment (DS). Cyst densities varied widely among the sampled stations, with the highest density of 1685 cyst g1 DS being recorded at station 51 near a mussel farm. With respect to sediment characteristics, the highest cyst densities were found within silty sediments with high water content values. The distribution of A. pseudongoyaulax cysts in Bizerte lagoon appears to be related to hydrodynamic factors.
URI: https://www.um.edu.mt/library/oar//handle/123456789/26144
Appears in Collections:Scholarly Works - FacSciGeo

Files in This Item:
File Description SizeFormat 
publishedMarinePollutionBulletinpaper.pdf1.8 MBAdobe PDFView/Open


Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.