September 22-25, 1998, St. John, NFD, Canada
1. Workshop Planning Committee (Chair: John Castell, Members: Mic
Burt, John Allen, Frank Powell, Joe Brown, Stewart Johnson (or Brian
Blanchard), Carole Langteigne, Nick Brown)
2. Invited speakers (Lesley McEvoy, Scotland; Philippe Dhert (or
Patrick Sorgeloos), Belgium; Josianne Stottrup, Denmark; Moti Heral,
Maryland; Atsushi Hagiwara, Japan; Gidon Minkoff, British Columbia; Amos Tandler, Israel; Karen Pittman, University of Bergen, Norway; and others as suggestions may arise), Representatives from live feed and enrichment product suppliers.
3. Customers: 40-50 participants from Atlantic researchers and industry partners
Focus:
1. review current status of live feed production in Atlantic Canada
with emphasis on improving successful production of juvenile marine
fish for commercial scale on-growing
2. open discussion among participants of problems and areas for
improvement
3. develop plans for collaborative projects to help solve problems
and refine techniques
Topics (to include but not be limited to):
- Latest developments in Artemia and rotifer enrichment
- Spray dried heterotrophic algal products
- Commercial lipid emulsions
- Special fish roe phospholipid based emulsions
- Cool temperature effects in enrichment
- The role of algae in larval fish culture
- Why do algal cultures crash?
- Which are the best species of algae and why?
The fish larvae themselves
- Larval nutritional requirements
- Physiological changes during development
- Metamorphosis and weaning
- Feeding behavior and feeding strategies
- Feed attractants,
- Prey behaviors to trigger feeding responses
- Feeding densities and frequencies
- Mass culture system for copepods to replace/supplement wild
zooplankton use
- Both benthic and pelagic species may be considered, particularly Tisbe sp. and harpacticoids
- Effect of sub-zero temperature storage of wild zooplankton on nutritional value and application in fish larvae feeding
- Potential alternative live feeds
- Mollusc trochophores
- Polychaet larvae
- Nematodes
- Marine yeasts
John Castell
<CastellJ@mar.dfo-mpo.gc.ca>