IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Survival and growth of instar 1 phyllosoma of the western rock lobster, Panulirus cygnus, starved before or after periods of feeding
Liddy, G.C.; Phillips, B.F.; Maguire, G.B. (2003). Survival and growth of instar 1 phyllosoma of the western rock lobster, Panulirus cygnus, starved before or after periods of feeding. Aquacult. Int. 11(1-2): 53-67
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article  

Available in  Authors 

Keywords
    Lobster fisheries; Starvation; Panulirus cygnus George, 1962 [WoRMS]; Marine

Authors  Top 
  • Liddy, G.C., correspondent
  • Phillips, B.F., more
  • Maguire, G.B.

Abstract
    Adequate nutrition is a principal factor in controlling survival and growth in crustacean larval culture. The present study examined the effects of starvation before or after feeding on survival, total intermoult period and postmoult size of phyllosoma of the western rock lobster, Panulirus cygnus. Individually held instar 1 larvae were reared at 25 °C and submitted to initial periods of starvation to determine the 50% level of the point-of-no-return (PNR50), and initial periods of feeding to determine the 50% level of the point-of-reserve-saturation (PRS50). As the initial starvation periods before feeding increased, the total intermoult period for instar 1 larvae that survived increased. The PNR50 was 4.6 days. The different initial feeding periods before starvation resulted in a difference in postmoult size of larvae after moulting to instar 2, but had little effect on the total intermoult period. Larvae fed for the shortest periods were significantly smaller than those fed longer. The PRS50 was 3.6 days. For both treatments, limited effects of the starvation or feeding regimes were apparent for larvae that moulted to instar 2 and continued development to instar 3. When larvae were fed before PNR50, there were no delayed effects of the initial starvation period. Initial feeding periods longer than 5-6 days did not significantly affect larval survival or growth. This information will be useful in the design of feeding regimes in phyllosoma culture.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors