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Ulva australis as a tool for monitoring metal-polluted estuarine system; spatial and temporal considerations

Citation

Farias, DR and Hurd, CL and Eriksen, RS and MacLeod, CK, Ulva australis as a tool for monitoring metal-polluted estuarine system; spatial and temporal considerations, Global NEST Journal, 21, (4) pp. 449-454. ISSN 1790-7632 (2019) [Refereed Article]

Copyright Statement

Copyright 2019 Global NEST

DOI: doi:10.30955/gnj.002638

Abstract

This study investigated temporal and spatial patterns of heavy metal content in Ulva australis. Samples were collected from the Derwent Estuary, Tasmania, Australia, over 3 years (2013-2015) at locations where historically arsenic, cadmium, lead and zinc were high in sediments and seawater. Zinc and lead content were high in U. australis at all sampling times, with levels consistent with the spatial distribution of metal within the system. Zinc in Ulva varied seasonally (4.8 – 320.7 mg·kg-1), but lead did not. Zinc and lead were highest in the middle-upper estuary, close to the zinc smelter, where seawater concentrations were higher. The results suggest that spatial variation of metal content in Ulva is a reflection of variability in the seawater, which in turn indicates that U. australis could be used for monitoring the effects of metals in estuarine systems, and that U. australis could be a useful addition to existing management strategies.

Item Details

Item Type:Refereed Article
Keywords:Ulva, biomonitoring, heavy metal, pollution, biological indicators, contamination, macroalgae, seasonal variability
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Phycology (incl. marine grasses)
Objective Division:Environmental Management
Objective Group:Terrestrial systems and management
Objective Field:Assessment and management of terrestrial ecosystems
UTAS Author:Farias, DR (Mrs Daniela Farias)
UTAS Author:Hurd, CL (Professor Catriona Hurd)
UTAS Author:Eriksen, RS (Dr Ruth Eriksen)
UTAS Author:MacLeod, CK (Associate Professor Catriona MacLeod)
ID Code:139415
Year Published:2019
Web of Science® Times Cited:1
Deposited By:Ecology and Biodiversity
Deposited On:2020-06-15
Last Modified:2020-07-28
Downloads:0

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