University of Tasmania
Browse

File(s) not publicly available

Effects of photoperiod, temperature and salinity on hatchery - reared larvae of the greenback flounder ( Rhombosolea tapirina, Gunther, 1862)

journal contribution
posted on 2023-05-16, 10:14 authored by Hart, PR, Hutchinson, WG, Gary PurserGary Purser
The greenback flounder (Rhombosolea tapirina) is considered to have potential as an aquaculture species in southern Australia. Experiments were conducted to determine the optimal photoperiod, temperature and salinity for rearing of larvae through metamorphosis. Experiments were carried out in 31 tanks in a recirculating system. Optimal photoperiods were found to be 18-24h light, which increased the growth rate but had no effect on survival. Total darkness resulted in 100% mortality by Day 20 post-hatch. The optimal temperature for larval rearing was not clearly identified, but 19-20°C gave better growth than lower temperatures. There were no clear temperature effects on survival trends over the range used, although 16°C resulted in significantly lower survival than 17 or 19°C. A salinity of 15‰ resulted in lower survival, compared with either 25 or 35‰, but there were no salinity effects on growth over the tested range.

History

Publication title

Aquaculture

Volume

144

Issue

4

Pagination

303-311

ISSN

0044-8486

Department/School

Institute for Marine and Antarctic Studies

Publisher

Elsevier Science Bv

Place of publication

Amsterdam, Holland

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

Usage metrics

    University Of Tasmania

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC