Library Open Repository

Effects of photoperiod and light intensity on initial swim bladder inflation, growth and post-inflation viability in cultured striped trumpeter (Latris lineata) larvae

Downloads

Downloads per month over past year

Trotter, AJ and Battaglene, SC and Pankhurst, PM (2003) Effects of photoperiod and light intensity on initial swim bladder inflation, growth and post-inflation viability in cultured striped trumpeter (Latris lineata) larvae. Acquaculture, 224 (1 - 4). pp. 141-158. ISSN 0044-8486

[img] PDF
Photoperiod_trotter.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

Transient physostomes often fail to complete initial swim bladder inflation in culture and display reduced survival and growth. Three experiments were conducted in replicate 200-l tanks to determine the effects of photoperiod and light intensity on initial swim bladder inflation, postinflation viability (surviving larvae with inflated swim bladders) and growth in striped trumpeter (Latris lineata) larvae. Both photoperiod and light intensity were found to affect initial swim bladder inflation, growth, survival and post-inflation viability of striped trumpeter larvae. Higher initial swim bladder inflation was promoted by providing a dark-phase before and during initial swim bladder inflation. Swim-up behaviour where larvae gulped air at the water surface to fill their swim bladder was predominantly observed during the dark-phase. In Experiment 1, a 12L:12D photoperiod was inferior to either a 18L:6D or 24L:0D photoperiod for larval growth. In Experiment 2, initial swim bladder inflation was higher in larvae reared under a light intensity of 4 Amol s 1 m 2 compared to 40 Amol s 1 m 2. From Experiment 3, a 18L:6D photoperiod provided higher post-inflation viability than either 24L:0D, or a photoperiod combination of 24L:0D from stocking, changing to 21L:3D at the onset of initial swim bladder inflation. However, different optimal photoperiods for initial swim bladder inflation (18L:6D) and survival (24L:0D) lowered post-inflation viability in

Item Type: Article
Keywords: Photoperiod and light intensity; Swim bladder inflation; Latris lineata
Journal or Publication Title: Acquaculture
Page Range: pp. 141-158
ISSN: 0044-8486
Identification Number - DOI: 10.1016/S0044-8486(03)00212-6
Additional Information: The definitive version is available at http://www.sciencedirect.com
Date Deposited: 12 Nov 2007 02:48
Last Modified: 18 Nov 2014 03:24
URI: http://eprints.utas.edu.au/id/eprint/2435
Item Statistics: View statistics for this item

Repository Staff Only (login required)

Item Control Page Item Control Page