eCite Digital Repository
The effect of stocking density on growth, metabolism and ammonia-N excretion during larval ontogeny of the spiny lobster Sagmariasus verreauxi
Citation
Jensen, M and Fitzgibbon, Q and Carter, CG and Adams, LR, The effect of stocking density on growth, metabolism and ammonia-N excretion during larval ontogeny of the spiny lobster Sagmariasus verreauxi, Aquaculture, 376-379 pp. 45-53. ISSN 0044-8486 (2013) [Refereed Article]
Copyright Statement
Crown Copyright 2012
DOI: doi:10.1016/j.aquaculture.2012.10.033
Abstract
Stocking density is a critical factor affecting performance of aquatic organisms in culture, however, its influence
on energy utilisation has rarely been considered. Energy partitioning is particularly important for spiny
lobster phyllosoma, which must accumulate sufficient energy reserves for metamorphosis and the nonfeeding
puerulus stage. The current study is the first to examine the energetics of spiny lobsters throughout
the entire phyllosoma phase and determined the physiological influence of density. Growth and development,
oxygen consumption and ammoniaN excretion rates were measured in Sagmariasus verreauxi
phyllosoma that were cultured at High Density (HD) and Low Density (LD) from hatch to puerulus.
Phyllosoma growth and development was more advanced in LD phyllosoma after 108 day in culture and
mass of LD instar 17 phyllosoma was greater. There were no differences in routine metabolic rate (Rr) and
ammoniaN excretion of phyllosoma between densities. However, the O:N ratio decreased in final instar
phyllosoma demonstrating a shift towards higher protein catabolism. Routine metabolic rate also increased
in late stage phyllosoma, possibly due to higher energy requirements in preparation for metamorphosis
and increased swimming activity. The Rr of spiny lobster larvae was significantly lower than that of other
crustacean larvae, which may be a characteristic of their extended larval phase, slower growth rate, and
larger body size. The study demonstrated late stage phyllosoma have higher weight specific energy requirements
than the preceding larval stages and exhibit a metabolic shift towards protein catabolism, suggesting
an increased importance of storing lipid as an energy reserve for the puerulus stage.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | energetics, O:N ratio, ontogeny, oxygen consumption, phyllosoma, spiny lobster |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Aquaculture |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - aquaculture |
Objective Field: | Aquaculture rock lobster |
UTAS Author: | Jensen, M (Mr Mark Jensen) |
UTAS Author: | Fitzgibbon, Q (Associate Professor Quinn Fitzgibbon) |
UTAS Author: | Carter, CG (Professor Chris Carter) |
UTAS Author: | Adams, LR (Dr Louise Adams) |
ID Code: | 81722 |
Year Published: | 2013 |
Web of Science® Times Cited: | 16 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2013-01-03 |
Last Modified: | 2017-11-03 |
Downloads: | 1 View Download Statistics |
Repository Staff Only: item control page