Dissertation
Applications of Biotechnology to Support Giant Grouper Aquaculture
University of the Sunshine Coast, Queensland
Doctor of Philosophy, University of the Sunshine Coast, Queensland
2021
DOI:
https://doi.org/10.25907/00073
Abstract
Aquaculture of giant grouper (Epinephelus lanceolatus) is difficult and rarely profitable. There is a paucity of knowledge on optimal spawning and rearing procedures. This PhD focused on four aspects of grouper aquaculture: Economics of grouper aquaculture in Vietnam, development of tools for LH assays and assessment of hormone levels in wild grouper, molecular barcoding of prey for larval grouper, and investigations into breeding and sterility of potential surrogate grouper species for germ cell technology. The overarching objective of this study was to develop tools that would assist support the aquaculture of giant grouper.
Investigation into the economics of grouper in Vietnam found that the industry is expanding rapidly as an outcome of the introduction of a new variety of grouper to the region. This variety, the hybrid grouper, utilises milt from giant grouper and eggs from tiger grouper (E. fuscoguttatus) and has advantages over either parent. Significant constraints to the growth and diversification of the grouper aquaculture industry in Vietnam were identified. These constraints are the limited availability of hybrid fingerlings due to difficulties in larval rearing, difficulty in spawning grouper, broodstock management, and increases in feed costs due to a lack of domestic feed suppliers. Data showed that despite these constraints hybrid grouper aquaculture would continue to contribute to growth of grouper aquaculture in Vietnam.
Details
- Title
- Applications of Biotechnology to Support Giant Grouper Aquaculture
- Authors
- Lachlan Dennis
- Contributors
- Abigail Elizur (Supervisor) - University of the Sunshine Coast, Queensland, GeneCology Research Centre - LegacyJosephine Nocillado (Supervisor) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringScott Cummins (Supervisor) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Awarding institution
- University of the Sunshine Coast, Queensland
- Degree awarded
- Doctor of Philosophy
- Publisher
- University of the Sunshine Coast, Queensland
- DOI
- 10.25907/00073
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99548408902621
- Output Type
- Dissertation
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