The potential effects of climate change on southern calamary in Tasmanian waters: biology, ecology and fisheries
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AcknowledgementsWe would like to thank Alan Jordan and Jeremy Lyle for constructive comments on this report. Thankyou also to Sean Tracey for producing the figures, and Jason Bedelph for technical assistance. ReferencesAlford RA and Jackson GD (1993). Do cephalopods and larvae of other taxa grow asymptotically? The American Naturalist, 141(5): 717-728. Bailey KM and Houde ED (1989). Predation on eggs and larvae of marine fishes and the recruitment problem. Advances in Marine Biology, 25: 1-83. Beaugrand G and Reid PC (2003). Long-term changes in phytoplankton, zooplankton and salmon related to climate. Global Change Biology, 9: 801-817. Beddington JR, Rosenberg AA, Crombie JA, and Kirkwood GP (1990). Stock assessment and the provisions of management advice for the short fin squid fishery in Falkland Islands waters. Fisheries Research, 8: 351-365. Boletzky S (1994). Embryonic development of cephalopods at low temperatures. Antarctic Science, 6(2): 139-142. Boyle PR (1990). 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Figure 1: Total catch of southern calamary per fishing grid, for the 12 month period 2002/03. Values based on monthly General Fishing Returns. Data cannot be shown where less than 5 boats reported catches.  Figure 2: Annual catch (tonnes) and effort (fisher days) for the calamary component of the Tasmanian Commercial Scalefish Fishery since 1980/81. 
Figure 3: The impact of initial hatchling size on the size-at-age that can be achieved at different percentage daily growth rates. The effect of initial hatchling size becomes more obvious as growth rates increase. Growth rates would likely increase with elevated temperatures. 
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