Dinoflagellate cyst abundance is positively correlated to sediment organic carbon in Sydney Harbour and Botany Bay, NSW, Australia

Tian, C; Doblin, MA; Dafforn, KA; Johnston, EL; Pei, H; Hu, W

Dinoflagellate cyst abundance is positively correlated to sediment organic carbon in Sydney Harbour and Botany Bay, NSW, Australia

Tian, C Doblin, MA

Dafforn, KA

Johnston, EL Pei, H Hu, W

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Publication Type:: Journal Article
Citation:: Environmental Science and Pollution Research, 2018, 25 (6), pp. 5808 - 5821
Issue Date:: 2018-02-01

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Field	Value	Language
dc.contributor.author	Tian, C	en_US
dc.contributor.author	Doblin, MA https://orcid.org/0000-0001-8750-3433	en_US
dc.contributor.author	Dafforn, KA https://orcid.org/0000-0001-8848-377X	en_US
dc.contributor.author	Johnston, EL	en_US
dc.contributor.author	Pei, H	en_US
dc.contributor.author	Hu, W	en_US
dc.date.available	2017-11-29	en_US
dc.date.issued	2018-02-01	en_US
dc.identifier.citation	Environmental Science and Pollution Research, 2018, 25 (6), pp. 5808 - 5821	en_US
dc.identifier.issn	0944-1344	en_US
dc.identifier.uri	http://hdl.handle.net/10453/127487
dc.description.abstract	© 2017, Springer-Verlag GmbH Germany, part of Springer Nature. There is growing public concern about the global expansion of harmful algal bloom species (HABs), with dinoflagellate microalgae comprising the major portion of the harmful taxa. These motile, unicellular organisms have a lifecycle involving sexual reproduction and resting cyst formation whereby cysts can germinate from sediments and ‘seed’ planktonic populations. Thus, investigation of dinoflagellate cyst (dinocyst) distribution in sediments can provide significant insights into HAB dynamics and contribute to indices of habitat quality. Species composition and abundance of dinocysts in relation to sediment characteristics were studied at 18 stations in two densely populated temperate Australian estuaries, Sydney Harbour (Parramatta River/Port Jackson; PS) and Botany Bay (including Georges River; GB). Eighteen dinocyst taxa were identified, dominated by Protoceratium reticulatum and Gonyaulax sp.1 in the PS estuary, together with Archaeperidinium minutum and Gonyaulax sp.1 in the GB estuary. Cysts of Alexandrium catenella, which is one of the causative species of paralytic shellfish poisoning (PSP), were also detected in both estuaries. Out of the measured sediment characteristics (TOC, Cd, Cr, Cu, Fe, Pb, Mn, Ni, Zn and polycyclic aromatic hydrocarbons), TOC was the parameter explaining most of the variation in dinocyst assemblages and was positively correlated to most of the heavy metals. Given the significant relationship between sediment TOC and dinocyst abundance and heavy metal concentrations, this study suggests that sediment TOC could be broadly used in risk management for potential development of algal blooms and sediment contamination in these estuaries.	en_US
dc.relation.ispartof	Environmental Science and Pollution Research	en_US
dc.relation.isbasedon	10.1007/s11356-017-0886-1	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Animals	en_US
dc.subject.mesh	Dinoflagellida	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Metals, Heavy	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Ecosystem	en_US
dc.subject.mesh	Rivers	en_US
dc.subject.mesh	Environmental Monitoring	en_US
dc.subject.mesh	Geologic Sediments	en_US
dc.subject.mesh	New South Wales	en_US
dc.subject.mesh	Bays	en_US
dc.subject.mesh	Estuaries	en_US
dc.title	Dinoflagellate cyst abundance is positively correlated to sediment organic carbon in Sydney Harbour and Botany Bay, NSW, Australia	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	25	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	0602 Ecology	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - C3 - Climate Change Cluster
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	25	en_US

Abstract:

© 2017, Springer-Verlag GmbH Germany, part of Springer Nature. There is growing public concern about the global expansion of harmful algal bloom species (HABs), with dinoflagellate microalgae comprising the major portion of the harmful taxa. These motile, unicellular organisms have a lifecycle involving sexual reproduction and resting cyst formation whereby cysts can germinate from sediments and ‘seed’ planktonic populations. Thus, investigation of dinoflagellate cyst (dinocyst) distribution in sediments can provide significant insights into HAB dynamics and contribute to indices of habitat quality. Species composition and abundance of dinocysts in relation to sediment characteristics were studied at 18 stations in two densely populated temperate Australian estuaries, Sydney Harbour (Parramatta River/Port Jackson; PS) and Botany Bay (including Georges River; GB). Eighteen dinocyst taxa were identified, dominated by Protoceratium reticulatum and Gonyaulax sp.1 in the PS estuary, together with Archaeperidinium minutum and Gonyaulax sp.1 in the GB estuary. Cysts of Alexandrium catenella, which is one of the causative species of paralytic shellfish poisoning (PSP), were also detected in both estuaries. Out of the measured sediment characteristics (TOC, Cd, Cr, Cu, Fe, Pb, Mn, Ni, Zn and polycyclic aromatic hydrocarbons), TOC was the parameter explaining most of the variation in dinocyst assemblages and was positively correlated to most of the heavy metals. Given the significant relationship between sediment TOC and dinocyst abundance and heavy metal concentrations, this study suggests that sediment TOC could be broadly used in risk management for potential development of algal blooms and sediment contamination in these estuaries.

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http://hdl.handle.net/10453/127487