Variability of dinoflagellates and their associated toxins in relation with environmental drivers in Ambon Bay, eastern Indonesia

hdl:10013/epic.7a89410c-94c3-4a79-a9a5-fc3682e043dd

publisher:http://www.sciencedirect.com/science/article/pii/S0025326X19309348

Variability of dinoflagellates and their associated toxins in relation with environmental drivers in Ambon Bay, eastern Indonesia

Likumahua, Sem, de Boer, M. Karin, Krock, Bernd

, Hehakaya, Salomy, Imu, La, Müller, Annegret, Max, Thomas and Buma, Anita G. J. ;

Contact

Bernd.Krock [ at ] awi.de

Abstract

The aim of the present work was to unravel which environmental drivers govern the dynamics of toxic dinoflagellate abundance as well as their associated paralytic shellfish toxins (PSTs), diarrhetic shellfish toxins (DSTs) and pectenotoxin-2 (PTX2) in Ambon Bay, Eastern Indonesia. Weather, biological and physicochemical parameters were investigated weekly over a 7-month period. Both PSTs and PTX2 were detected at low levels, yet they persisted throughout the research. Meanwhile, DSTs were absent. A strong correlation was found between total particulate PST and Gymnodinium catenatum cell abundance, implying that this species was the main producer of this toxin. PTX2 was positively correlated with Dinophysis miles cell abundance. Vertical mixing, tidal elevation and irradiance attenuation were the main environmental factors that regulated both toxins and cell abundances, while nutrients showed only weak correlations. The present study indicates that dinoflagellate toxins form a potential environmental, economic and health risk in this Eastern Indonesian bay.

Item Type

Article

Authors

Likumahua, Sem, de Boer, M. Karin, Krock, Bernd

, Hehakaya, Salomy, Imu, La, Müller, Annegret, Max, Thomas and Buma, Anita G. J. ;

Divisions

AWI Organizations > Biosciences > Ecological Chemistry

Primary Division

Organizations > AWI Organizations > Biosciences > Ecological Chemistry

Programs

Helmholtz Research Programs > PACES II (2014-2020) > TOPIC 2: Fragile coasts and shelf sea > WP 2.3: Evolution and adaptation to climate change and anthropogenic stress in coastal and shelf systems

Primary Topic

Helmholtz Programs > Helmholtz Research Programs > PACES II (2014-2020) > TOPIC 2: Fragile coasts and shelf sea > WP 2.3: Evolution and adaptation to climate change and anthropogenic stress in coastal and shelf systems

Publication Status

Published

Eprint ID

50826

DOI 10.1016/j.marpolbul.2019.110778

Cite as

Likumahua, S. , de Boer, M. K. , Krock, B. , Hehakaya, S. , Imu, L. , Müller, A. , Max, T. and Buma, A. G. J. (2020): Variability of dinoflagellates and their associated toxins in relation with environmental drivers in Ambon Bay, eastern Indonesia , Marine Pollution Bulletin, 150 , p. 110778 . doi: 10.1016/j.marpolbul.2019.110778