University of Tasmania
Browse

File(s) under permanent embargo

Ingestion of artificial diets with different textures as determined by the inert marker ytterbium oxide during culture of early-stage phyllosoma of the spiny lobster, Jasus edwardsii

journal contribution
posted on 2023-05-17, 12:15 authored by Cox, SL, Bruce, MP, Ritar, AJ
Instar 1 and 2 Jasus edwardsii (Decapoda; Palinuridae) phyllosoma larvae were fed an artificial diet formulation (based on fish and mussel) consisting of three different gelatin combinations (firm, 4% inclusion; medium, 2% inclusion; and soft, no gelatin). The diet contained ytterbium oxide (Yb2O3; 1% inclusion), an inert heavy metal marker, which was used to confirm diet consumption in instar 1 and 2 phyllosoma. Over a 6-h feeding period, instar 1 phyllosoma showed a preference for the soft and medium diets as opposed to the firm diet, but this effect was not significant with instar 2. The artificial diets remained palatable over the duration of the experiments, suggesting leaching did not influence diet attractiveness. It is suggested that diets comprising softer food items such as microencapsulated pellets or gelatinous formulated diets and pastes are most suitable for early-instar phyllosoma. Furthermore, it is also suggested that Yb2O3 is a potentially useful marker for ongoing quantitative work on diet utilization in lobster larvae.

History

Publication title

Aquaculture Nutrition

Volume

17

Pagination

152-158

ISSN

1353-5773

Department/School

Institute for Marine and Antarctic Studies

Publisher

Blackwell Publishing Ltd

Place of publication

9600 Garsington Rd, Oxford, England

Rights statement

Copyright 2009 Blackwell Publishing Ltd

Repository Status

  • Restricted

Socio-economic Objectives

Aquaculture crustaceans (excl. rock lobster and prawns)

Usage metrics

    University Of Tasmania

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC