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Scale-bearing nanoflagellates from southern Tasmanian coastal waters, Australia


Leroi, JM and Hallegraeff, GM, Scale-bearing nanoflagellates from southern Tasmanian coastal waters, Australia, Botanica Marina, 47, (1) pp. 73-102. ISSN 0006-8055 (2004) [Refereed Article]

DOI: doi:10.1515/BOT.2004.008


A comprehensive taxonomic survey of Chrysochromulina was undertaken in 52 samples from southern Tasmanian coastal waters. Scale morphology of both field samples and enrichment cultures was examined using transmission electron microscopy. Twenty-eight known species of Chrysochromulina were recorded. These included C. adriatica, C. alifera, C. apheles, C. brevifilum, C. chiton, C. cyathophora, C. ephippium, C. ericina, C. hirta, C. leadbeateri, C. mantoniae, C. minor, C. novae-zelandiae, C. pachycylindra, C. parkeae, C. polylepis, C. pringsheimii, C. pyramidosa, C. simplex, C. spinifera, and Chrysochromulina sp. ("eyelash"). There were seven new records for Australian waters: C. acantha, C. aff. brachycylindra, C. aff. camella, C. fragaria, C. mactra, C. scutellum and C. aff vexillifera. All species, except C. novae-zelandiae, had been previously reported from the northern hemisphere. A further nine undescribed species are documented. However, lack of complete cells prevented new species descriptions. Two known toxic species, Chysochromulina polylepis and C. leadbeateri, responsible for massive fish kills in Scandinavia, were found in this survey. Toxicity testing of six Chrysochromulina species isolated from Tasmanian waters (C. acantha, C. apheles, C. hirta, C. scutellum, C. simplex, Chrysochromulina sp. ["eyelash"]) was undertaken, using larval brine shrimp (Artemia) bioassays. None of the strains tested was found to be toxic.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Phycology (incl. marine grasses)
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Fisheries - aquaculture not elsewhere classified
UTAS Author:Leroi, JM (Ms Jeannie-Marie Leroi)
UTAS Author:Hallegraeff, GM (Professor Gustaaf Hallegraeff)
ID Code:29280
Year Published:2004
Web of Science® Times Cited:11
Deposited By:Plant Science
Deposited On:2004-08-01
Last Modified:2005-06-08

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