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Distributions of young cephalopods in the tropical waters of Western Australia over two consecutive summers


Jackson, GD and Meekan, MG and Wotherspoon, SJ and Jackson, CH, Distributions of young cephalopods in the tropical waters of Western Australia over two consecutive summers, Ices Journal of Marine Science, 65, (2) pp. 140-147. ISSN 1054-3139 (2008) [Refereed Article]

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DOI: doi:10.1093/icesjms/fsm186


Cephalopod paralarvae and juveniles were sampled with light traps deployed at the surface and deeper in the southern NW Shelf and on Ningaloo Reef off Western Australia during two consecutive summers. One cross shelf transect (Exmouth) was sampled in the late spring and summers of 1997/1998 (summer 1) and 1998/1999 (summer 2), and a second cross shelf transect (Thevenard) and a longshore transect (Ningaloo) along the Ningaloo Reef were sampled in summer 2. Species captured in the order of abundance were octopods, Photololigo sp., Sepioteuthis lessoniana, and Sthenoteuthis oualaniensis. Most were captured in shallow traps except for Photololigo sp., which was common in both shallow and deep traps with larger animals found in deeper water. The presence of Idiosepius pygmaeus in deep water off Ningaloo Reef revealed the species to be eurytopic, inhabiting a wider range of habitats than previously known. Photololigo sp. and S. lessoniana were more abundant inshore, and octopods were especially abundant on mid-depth stations of the Exmouth transect, probably because of the turbulent mixing and increased productivity there. Fewer S. oualaniensis were caught during the first summer on the Ningaloo transect (n = 5) than during the second summer (n = 79).

Item Details

Item Type:Refereed Article
Keywords:cephalopods, light traps, Ningaloo, squid
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Coastal or estuarine biodiversity
UTAS Author:Jackson, GD (Dr George Jackson)
UTAS Author:Wotherspoon, SJ (Dr Simon Wotherspoon)
UTAS Author:Jackson, CH (Mrs Christine Jackson)
ID Code:56007
Year Published:2008
Web of Science® Times Cited:6
Deposited By:Mathematics
Deposited On:2009-03-19
Last Modified:2009-07-28
Downloads:1 View Download Statistics

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