Journal article
Assessment of artificial substrates for collection of hatchery-reared silver-lip pearl oyster (Pinctada maxima, Jameson) spat
Aquaculture, Vol.162(3-4), pp.219-230
1998
Abstract
This paper reports on three experiments in which artificial substrates were assessed for the collection of hatchery-reared silver-lip (or gold-lip) pearl oyster, Pinctada maxima (Jameson), spat. In the first experiment, pediveliger larvae were settled onto collectors made from a variety of materials: curved PVC slats; polypropylene rope; a combination of PVC slats and polypropylene rope; and monofilament nylon. After 37 days, the rope and the combined PVC slat and rope collectors had significantly higher numbers of spat (P < 0.05) than either nylon or PVC slat collectors. In a second experiment, PVC slat collectors were placed in a larval settlement tank in either a horizontal or vertical orientation. Significantly greater numbers of spat (P < 0.001) were observed on horizontally positioned PVC slat collectors than on collectors positioned vertically. Regardless of orientation, the concave surface of PVC slats had significantly higher (P < 0.001) numbers of spat than the convex surface. In the third experiment, collection of P. maxima spat was compared between PVC slats with or without an epifloral biofilm. Significantly more (P < 0.001) spat attached to PVC slats with a biofilm than clean PVC slats. These results indicate that the choice of collector material, the surface orientation of collectors and method of collector preparation can optimise the collection of hatchery-reared P. maxima spat.
Details
- Title
- Assessment of artificial substrates for collection of hatchery-reared silver-lip pearl oyster (Pinctada maxima, Jameson) spat
- Authors
- J J Taylor (Author) - James Cook UniversityPaul C Southgate (Author) - James Cook UniversityR A Rose (Author) - James Cook University
- Publication details
- Aquaculture, Vol.162(3-4), pp.219-230
- Publisher
- Elsevier BV
- Date published
- 1998
- DOI
- 10.1016/S0044-8486(98)00213-0
- ISSN
- 0044-8486
- Organisation Unit
- School of Science and Engineering - Legacy; Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99449399602621
- Output Type
- Journal article
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