Co-occurrence of pectenotoxins and Dinophysis miles in an Indonesian semi-enclosed bay

Sem Likumahua; M. Karin de Boer; Bernd Krock; Willem M. Tatipatta; Malik S. Abdul; Anita Buma

doi:10.1016/j.marpolbul.2022.114340

Co-occurrence of pectenotoxins and Dinophysis miles in an Indonesian semi-enclosed bay

Sem Likumahua^*, M. Karin de Boer, Bernd Krock, Willem M. Tatipatta, Malik S. Abdul, Anita Buma

^*Corresponding author for this work

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Abstract

The study aims to unravel the variability of Dinophysis spp. and their alleged toxins in conjunction with environmental drivers in Ambon Bay. Phytoplankton samples, lipophilic toxins and physiochemical water properties were analysed during a 1.5-year period. Three Dinophysis species (D. miles, D. caudata, and D. acuminata) were found in plankton samples, of which D. miles was the most abundant and persistently occurring species.
Pectenotoxin-2 (PTX2) and its secoacid (PTX2sa) were detected throughout, and PTX2sa levels strongly correlated with D. miles cell abundance. The toxin showed a positive correlation with temperature, which may suggest that D. miles cells contain rather constant PTX2sa during warmer months. Dissolved nitrate concentrations were
found to play a major role in regulating cell abundances and toxin levels. This study adds adequate information regarding marine biotoxins and potentially toxic species for future Harmful Algal Bloom management in Ambon and Indonesia at large.

Original language	English
Article number	114340
Number of pages	13
Journal	Marine Pollution Bulletin
Volume	185
Issue number	Part B
Early online date	18-Nov-2022
DOIs	https://doi.org/10.1016/j.marpolbul.2022.114340
Publication status	Published - Dec-2022

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title = "Co-occurrence of pectenotoxins and Dinophysis miles in an Indonesian semi-enclosed bay",

abstract = "The study aims to unravel the variability of Dinophysis spp. and their alleged toxins in conjunction with environmental drivers in Ambon Bay. Phytoplankton samples, lipophilic toxins and physiochemical water properties were analysed during a 1.5-year period. Three Dinophysis species (D. miles, D. caudata, and D. acuminata) were found in plankton samples, of which D. miles was the most abundant and persistently occurring species.Pectenotoxin-2 (PTX2) and its secoacid (PTX2sa) were detected throughout, and PTX2sa levels strongly correlated with D. miles cell abundance. The toxin showed a positive correlation with temperature, which may suggest that D. miles cells contain rather constant PTX2sa during warmer months. Dissolved nitrate concentrations werefound to play a major role in regulating cell abundances and toxin levels. This study adds adequate information regarding marine biotoxins and potentially toxic species for future Harmful Algal Bloom management in Ambon and Indonesia at large.",

author = "Sem Likumahua and {de Boer}, {M. Karin} and Bernd Krock and Tatipatta, {Willem M.} and Abdul, {Malik S.} and Anita Buma",

year = "2022",

month = dec,

doi = "10.1016/j.marpolbul.2022.114340",

language = "English",

volume = "185",

journal = "Marine Pollution Bulletin",

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TY - JOUR

T1 - Co-occurrence of pectenotoxins and Dinophysis miles in an Indonesian semi-enclosed bay

AU - Likumahua, Sem

AU - de Boer, M. Karin

AU - Krock, Bernd

AU - Tatipatta, Willem M.

AU - Abdul, Malik S.

AU - Buma, Anita

PY - 2022/12

Y1 - 2022/12

N2 - The study aims to unravel the variability of Dinophysis spp. and their alleged toxins in conjunction with environmental drivers in Ambon Bay. Phytoplankton samples, lipophilic toxins and physiochemical water properties were analysed during a 1.5-year period. Three Dinophysis species (D. miles, D. caudata, and D. acuminata) were found in plankton samples, of which D. miles was the most abundant and persistently occurring species.Pectenotoxin-2 (PTX2) and its secoacid (PTX2sa) were detected throughout, and PTX2sa levels strongly correlated with D. miles cell abundance. The toxin showed a positive correlation with temperature, which may suggest that D. miles cells contain rather constant PTX2sa during warmer months. Dissolved nitrate concentrations werefound to play a major role in regulating cell abundances and toxin levels. This study adds adequate information regarding marine biotoxins and potentially toxic species for future Harmful Algal Bloom management in Ambon and Indonesia at large.

AB - The study aims to unravel the variability of Dinophysis spp. and their alleged toxins in conjunction with environmental drivers in Ambon Bay. Phytoplankton samples, lipophilic toxins and physiochemical water properties were analysed during a 1.5-year period. Three Dinophysis species (D. miles, D. caudata, and D. acuminata) were found in plankton samples, of which D. miles was the most abundant and persistently occurring species.Pectenotoxin-2 (PTX2) and its secoacid (PTX2sa) were detected throughout, and PTX2sa levels strongly correlated with D. miles cell abundance. The toxin showed a positive correlation with temperature, which may suggest that D. miles cells contain rather constant PTX2sa during warmer months. Dissolved nitrate concentrations werefound to play a major role in regulating cell abundances and toxin levels. This study adds adequate information regarding marine biotoxins and potentially toxic species for future Harmful Algal Bloom management in Ambon and Indonesia at large.

U2 - 10.1016/j.marpolbul.2022.114340

DO - 10.1016/j.marpolbul.2022.114340

M3 - Article

SN - 0025-326X

VL - 185

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

IS - Part B

M1 - 114340

ER -