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_tro...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
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page