Australian Museum Journal First records of the invasive Upside-down jellyfish, Cassiopea (Cnidaria: Scyphozoa: Rhizostomeae: Cassiopeidae), from coastal lakes of New South Wales, Australia

Shortform:
Keable and Ahyong, 2016. Rec. Aust. Mus. 68(1): 23–30
Author(s):
Stephen J. Keable; Shane T. Ahyong
Year published:
2016
Title:
First records of the invasive Upside-down jellyfish, Cassiopea (Cnidaria: Scyphozoa: Rhizostomeae: Cassiopeidae), from coastal lakes of New South Wales, Australia
Serial title:
Records of the Australian Museum
Volume:
68
Issue:
1
Start page:
23
End page:
30
DOI:
10.3853/j.2201-4349.68.2016.1656
Language:
English
Date published:
10 May 2016
Cover date:
10 May 2016
ISSN:
ISSN 0067-1975 (print); ISSN 2201-4349 (online)
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
CNIDARIA; ECOLOGY; FRESHWATER; CLIMATE
Digitized:
10 May 2016
Available online:
11 May 2016
Reference number:
1656
Title page:
Title page (235kb PDF)
Complete work:
Complete work (2642kb PDF)

Abstract

Scyphozoans of the genus Cassiopea (Cassiopeidae) are notable for their unusual benthic habit of lying upside-down with tentacles facing upwards, resulting in their common name, “upsidedown jellyfish”. In Australia, five named species of Cassiopea have been recorded from the tropical north. Cassiopea are frequently noted worldwide as invasive species and here, we report the first records of the genus and family from temperate eastern Australia on the basis of specimens collected from two widely separated coastal lakes, Wallis Lake and Lake Illawarra; these specimens represent southern range extensions of the genus by approximately 600 km and 900 km, respectively. Cassiopea from Lake Illawarra and Wallis Lake appear to represent different species, which we assign to C. ndrosia and C. cf. maremetens, respectively, noting morphological discrepancies from published accounts.

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