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Scale-bearing nanoflagellates from southern Tasmanian coastal waters, Australia
journal contribution
posted on 2023-05-16, 14:53 authored by Jeannie-Marie Leroi, Gustaaf HallegraeffGustaaf HallegraeffA 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.
History
Publication title
Botanica MarinaVolume
47Pagination
73-102ISSN
0006-8055Department/School
School of Natural SciencesPublisher
Walter De Gruyter & CoPlace of publication
GermanyRepository Status
- Restricted