Observations on the distribution of Bankia australis calman (Mollusca : Teredinidae) in the Patonga Creek mangrove swamp, New South Wales

1983 ◽  
Vol 34 (2) ◽  
pp. 355 ◽  
Author(s):  
MA Rimmer ◽  
SL Battaglene ◽  
PL Dostine
Keyword(s):  
Temperature Effects ◽  
Frontal Zone ◽  
New South ◽  
New South Wales ◽  
Avicennia Marina ◽  
Dead Tree ◽  
Mangrove Swamp ◽  
South Wales ◽  
Bankia Australis ◽  
Insulating Properties

The distribution of B. australis was found to be limited to the frontal zone of Avicennia marina despite the presence of apparently suitable wood throughout the mangrove swamp. Numbers of B. australis in dead tree stumps were found to decrease with increasing height and decreasing diameter of the stump. It is suggested that the insulating properties of the wood substratum may affect the distribution of B. australis by minimizing temperature effects during emersion.

Above- and below-ground biomasses of two species of mangrove on the Hawkesbury River estuary, New South Wales

1997 ◽  
Vol 48 (2) ◽  
pp. 147 ◽  
Author(s):  
Neil Saintilan
Keyword(s):  
New South ◽  
New South Wales ◽  
River Estuary ◽  
Avicennia Marina ◽  
Above Ground Biomass ◽  
Aegiceras Corniculatum ◽  
South Wales ◽  
Below Ground ◽  
Mangrove Communities ◽  
Intertidal Environments

Above- and below-ground biomasses of two species of mangrove, Avicennia marina and Aegiceras corniculatum, were estimated in a range of intertidal environments along the Hawkesbury River. Estimates of biomass of Avicennia communities in freshly accreted brackish substrata were in the order of 40 kg m–2, the highest figure ever recorded for temperate mangrove communities. The above-ground biomass communities of each species declined with increasing substratum salinity, whereas root/shoot ratios increased with increasing substratum salinity.

Differences in morphology and reproduction of the barnacles Elminius covertus and Hexaminius spp. from mangrove forests in the Sydney region of New South Wales

1996 ◽  
Vol 47 (5) ◽  
pp. 715 ◽  
Author(s):  
PM Ross
Keyword(s):  
Larval Development ◽  
Reproductive Output ◽  
New South ◽  
New South Wales ◽  
Avicennia Marina ◽  
Mangrove Forests ◽  
South Wales ◽  
Juvenile Stages ◽  
Grey Mangrove

E. covertus is found on bark and leaves of the grey mangrove Avicennia marina, H. foliorum is found on leaves and H. popeiana is found on bark. 7655 barnacles were collected from two sites at Woolooware Bay from winter 1987 to summer 1989. Reproductive and external features in E. covertus differed depending on the substratum on which it lived; reproductive output was greater on leaves than on bark. The genus Hexaminius has been classified elsewhere as two species on the basis of external features and reproductive differences of adults, larval development and larval setation; however, the adults were living on different substrata. A detailed study of larval and juvenile stages of Hexaminius in the field showed no differences in external features until juveniles were one month old and no differences in the time taken to rear cyprid larvae. This suggests that Hexaminius should not continue to be divided into two species.

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