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Authors Cambridge, ML; Zavala-Perez, A; Cawthray, GR; Statton, J; Mondon, J; Kendrick, GA
Author Full Name Cambridge, Marion L.; Zavala-Perez, Andrea; Cawthray, Greg R.; Statton, John; Mondon, Julie; Kendrick, Gary A.
Title Effects of desalination brine and seawater with the same elevated salinity on growth, physiology and seedling development of the seagrass Posidonia australis
Source MARINE POLLUTION BULLETIN
Language English
Document Type Article
Author Keywords Raised salinity; Brine additives; Chlorophyll 'a' fluorescence; Water relations; Osmolytes, water and osmotic potential; Amino acids
Keywords Plus ANTARCTICA LABILL SONDER; CYMODOCEA-NODOSA; WATER RELATIONS; AMPHIBOLIS-ANTARCTICA; WESTERN-AUSTRALIA; SHARK-BAY; MICROBIAL COMMUNITIES; OCEANICA; PLANT; RESPONSES
Abstract Desalination has the potential to provide an important source of potable water to growing coastal populations but it also produces highly saline brines with chemical additives, posing a possible threat to benthic marine communities. The effects of brine (0%, 50%, 100%) were compared to seawater treatments with the same salinity (37, 46, 54 psu) for seagrass (Posidonia australis) in mesocosms over 2 weeks. There were significant differences between brine and salinity treatments for photosynthesis, water relations and growth. Germinating seedlings of P. australis were also tested in brine treatments (0%, 25%, 50%, 100%) over 7 weeks followed by 2.5 weeks recovery in seawater. Growth was severely inhibited only in 100% brine. These experiments demonstrated that brine increased the speed and symptoms of stress in adult plants compared to treatments with the same salinity, whereas seedlings tolerated far longer brine exposure, and so could potentially contribute to seagrass recovery through recruitment.
Author Address [Cambridge, Marion L.; Statton, John; Kendrick, Gary A.] Univ Western Australia, UWA Oceans Inst, 35 Stirling Highway, Crawley, WA 6009, Australia; [Cambridge, Marion L.; Zavala-Perez, Andrea; Cawthray, Greg R.; Statton, John; Kendrick, Gary A.] Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Crawley, WA 6009, Australia; [Mondon, Julie] Deakin Univ, Sch Life & Environm Sci, POB 423, Warrnambool, Vic 3280, Australia
Reprint Address Cambridge, ML (corresponding author), Univ Western Australia, UWA Oceans Inst, 35 Stirling Highway, Crawley, WA 6009, Australia.; Cambridge, ML (corresponding author), Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Crawley, WA 6009, Australia.
E-mail Address marion.cambridge@uwa.edu.au
ResearcherID Number Cawthray, Gregory R/E-7404-2013; Cambridge, Marion/S-1977-2019; Cambridge, Marion L/G-4982-2011
ORCID Number Cambridge, Marion L/0000-0003-2781-4429; Cawthray, Gregory/0000-0003-1150-6675
Funding Agency and Grant Number National Centre of Excellence in Desalination Australia (NCEDA) [08699]
Funding Text We thank Renae Hovey, Rob Creasy, Elizabeth Halladin, John Quealy and Ian Dapsen for technical assistance during experiments, and Juanma Ruiz for early discussions. Patrick Hayes carried out additional data analysis and statistical testing and Ylva Olsen produced revisions to figures. This work was undertaken with funding provided by the National Centre of Excellence in Desalination Australia (NCEDA), Project 08699.
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 6
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Publisher City OXFORD
Publisher Address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN 0025-326X
29-Character Source Abbreviation MAR POLLUT BULL
ISO Source Abbreviation Mar. Pollut. Bull.
Publication Date MAR
Year Published 2019
Volume 140
Beginning Page 462
Ending Page 471
Digital Object Identifier (DOI) 10.1016/j.marpolbul.2019.02.001
Page Count 10
Web of Science Category Environmental Sciences; Marine & Freshwater Biology
Subject Category Environmental Sciences & Ecology; Marine & Freshwater Biology
Document Delivery Number HP1CF
Unique Article Identifier WOS:000461402300052
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