Moist Air Incubation And Deep Matrix Incubation Box

Experiment at Lookingglass FH • • • 2010 used MAI to Incubate 30 Females All females spawned on the same day 21 females’ eggs split into 2 egg trays 9 females’ eggs into 1 egg tray MAI unit temperature set at 44 F MAI unit is 58”W x 82”H x 31”D

Monitoring • Temperature inside MAI verified by independent thermometer • No formalin, no signs of fungus • Eggs had strong eye at 480 TU’s • Eggs picked, eyed up at 93% • 122, 256 total eggs, 113, 700 good and 8, 556 dead • Average fecundity 4, 075

Deep Matrix Incubation Box • • • Come in 2 -3 sizes or egg capacity Put 50 K-60 K eggs per box Plumbed in with flows at 5 gpm Eggs placed on top of screen plate, 3/16 x 3/4 Koch ring media up to 6 -8 inches deep Eggs hatch on top of screen plate, then pass through plate down into Koch rings • Swim up fry swim out into rearing unit • Cost: $950/unit, 5 or more-$900/unit

• Traditional otolith mark

• MAI otolith mark

Near future • Smaller MAI units with a capacity of 30150 K eggs • Units will be more plug and play • Tod Jones hopes to give a presentation or paper at the next NWFCC in Vancouver o • Brian Ashton shop remodel finished, will catch up on backlog of orders • Considering mfg. site in Sandpoint, Id.

Summary • • New Technology Benefit-no formalin Benefit-water conservation Benefit-environmentally friendly Benefit-otolith marking Benefit-no need for large water chillers Benefit-space saver Benefit-alarm system integration

Summary • Need to have a place for eggs before they hatch • Need to have replacement parts on hand: High pressure pump head (replacement head comes with new models) and chiller refrigerant (available at auto parts stores as R 134 A)

Contact Information • Tod Jones 503 -791 -9854 • Brian Ashton 907 -305 -0400 or ashtonb@ared. net Company names are Redd Zone Inc. and ARED Inc. Try www. ared. net, if you’re feeling lucky