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- Title
Performance of a new artificial abalone hatchery culture system in terms of settlement of larvae and growth and survival of postlarvalHaliotis discus discus(Reeve).
- Authors
Stott, Adrian E.; Takeuchi, Toshio; Koike, Yasuyuki
- Abstract
A new abalone postlarval culture system, Stott's abalone postlarval production system (SAPPS), is being developed as an alternative method for settling larvae and on-growing postlarval abalone. SAPPS was tested in trial 1 using two commercially available artificial diets, Adam and Amos (Adam; supplied by Adam and Amos, Mt Barker, SA, Australia) and Cosmo (Cos; supplied by Cosmo, Matsuyama, Japan), against the diatom biofilm method (Diatom). In trial 2, SAP PS was tested against the previous production system (P PS, used by Stott et at 2002). Larvae were induced to metamorphose and the resulting postlarvae were on-grown in 1 0-L flow-through tanks for 28 days in their respective treatments. The final survival of postlarvae was significantly higher (Pc 0.05) in the SAPPS-Cos group (56.7 ± 11.15%) than in the Diatom (9.4 ± 2.7%) and SAPPS-Adam groups (8.5 ± 1.1%). The final length of postlarvae in SAPPS-Cos (1065 ±73 Rm) was significantly higher (Pc 0.05) than those in the other two treatments (average of 841-883 Rm). In trial 2 the metamorphosis rate was improved by using Spiruilna platensis. The final length of postlarvae in SAPPS (1449- 1471 Rm) was significantly higher (Pc 0.05) than PPS (1065-1075 Rm) and Diatom (993 Rm).There is potential for SAPPS to be used as an alternative to the current diatom method in the culture of postlarval abalone.
- Subjects
ABALONE culture; FISHERIES; METAMORPHOSIS; LARVAE; ABALONES; DIATOMS
- Publication
Fisheries Science, 2004, Vol 70, Issue 6, p1070
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1111/j.1444-2906.2004.00907.x