Survival and growth of Australian snapper, Pagrus auratus, in saline groundwater from inland New South Wales, Australia

Aquaculture ◽  
2001 ◽  
Vol 201 (1-2) ◽  
pp. 73-90 ◽  
Author(s):  
D.Stewart Fielder ◽  
William J Bardsley ◽  
Geoff L Allan
Keyword(s):  
New South ◽  
New South Wales ◽  
Saline Groundwater ◽  
South Wales ◽  
Pagrus Auratus ◽  
Survival And Growth

Habitat-associated variability in survival and growth of three species of microgastropods

2001 ◽  
Vol 81 (6) ◽  
pp. 961-966 ◽  
Author(s):  
C. Olabarria ◽  
M.G. Chapman
Keyword(s):  
Growth Rates ◽  
Laboratory Experiments ◽  
New South ◽  
New South Wales ◽  
Algal Turf ◽  
Rate Of Growth ◽  
South Wales ◽  
Survival And Growth ◽  
Low Levels

Three species of microgastropods, Eatoniella atropurpurea, Eatonina rubrilabiata and Amphithalamus incidata, are common in various habitats at mid to low levels on intertidal shores in New South Wales, Australia. These habitats include patches of sediment, pebbles and algal turf. These species are very patchy, varying in abundance within and among habitats at scales of centimetres to many metres. This study describes laboratory experiments which tested hypotheses about differences in mortality and growth rates for each species in three different habitats: sediment, pebbles and coralline turf. There was greater mortality in coralline turf without sediment for E. rubrilabiata and A. incidata, whereas Eatoniella atropurpurea showed a greater mortality in sediment. Moreover, Eatonina rubrilabiata had a faster rate of growth in sediment, whereas Eatoniella atropurpurea grew more rapidly in coralline turf. The different rates of mortality and growth for these species in different habitats provide mechanisms which may partially explain the patterns of abundance in the field.

Sign in / Sign up

Export Citation Format

Share Document