Levels of selected chlorinated hydrocarbons in edible fish tissues from polluted areas in the Georges/Cooks Rivers and Sydney Harbour, New South Wales, Australia

1998 ◽  
Vol 36 (5) ◽  
pp. 323-344 ◽  
Author(s):  
A.C Roach ◽  
J Runcie
Keyword(s):  
New South ◽  
New South Wales ◽  
Chlorinated Hydrocarbons ◽  
Fish Tissues ◽  
South Wales ◽  
Sydney Harbour ◽  
Edible Fish

Speculations on a spatial memory for the Port Jackson shark (Heterodontus portusjacksoni) (Meyer) (Heterodontidae)

1995 ◽  
Vol 46 (5) ◽  
pp. 861 ◽  
Author(s):  
AK O'Gower
Keyword(s):  
Spatial Memory ◽  
New South ◽  
New South Wales ◽  
Resting Sites ◽  
South Wales ◽  
Sydney Harbour ◽  
Port Jackson

SCUBA observations show that Port Jackson sharks repeatedly visit specific resting sites on ocean reefs at South Bondi (New South Wales) and, when disturbed, move directly from one site to another. The sharks also use specific resting sites in Sydney Harbour and, when transferred by boat to different localities within the harbour, up to 3 km away, return to their original resting sites. The sharks migrate from as far south as Tasmania to Sydney Harbour to lay their eggs in specific sites. Speculative extrapolation from the above observations suggests that Port Jackson sharks must have a highly developed spatial memory.

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