Effect of brine shrimp size on the consumption rate, growth, and survival of early stage phyllosoma larvae of the rock lobster Jasus edwardsii
L.J. Tong, G.A. Moss, M.P. Paewai-2000
New Zealand Journal of Marine and Freshwater
Research, 34 (3) : 469-473 (from
Current Contents)
Abstract :
Stages I, III, and V phyllosoma larvae of the rock
lobster Jasus edwardsii (Hutton) were fed daily with 40, 80; 160, or
320,1-mm brine shrimps (Artemia salina) while controls were fed either 4, 8,
or 16, 2-3-mm brine shrimps. Stage I larvae fed 1-mm brine shrimps moulted
in the same time as the controls. Stage III and V larvae fed 160, l-mm brine
shrimps or less took significantly longer to moult than the controls but
those fed 320, l-mm brine shrimps were not significantly different. There
was no difference in the survival rates, which ranged between 70 and 100%
for all stages. The consumption rate increased significantly as the initial
density of 1-mm brine shrimps increased.