Zebrafish by the numbers

Zebrafish, rather unassuming one-and-a-half-inch-long striped creatures, take center stage in the labs of many Stowers investigators. Researchers prize zebrafish for their transparent embryos that enable them to follow the development of tissue and organs in microscopic detail, but also as a valuable model system to study the development of human disease. Behind the scenes, a team of specially trained aquatics experts cares for the fish in a state-of-the-art facility, raising them on a homegrown diet of single-celled paramecia and brine shrimp.
 

Zebrafish by the numbers

260,000
gallons of water filtered and re-circulated each day

25,000
size of the current zebrafish population

14,000
number of breedings set up in 2011

8,000
number of manual water quality tests performed annually

2,086
number of tanks holding fish

228
number of zebrafish strains housed in the aquatics facility

200
average number of eggs per clutch

150
gallons of paramecia grown for food annually

108
pounds of brine shrimp eggs hatched for fish food

37
pounds of processed dry food fed to fish

2.5
average lifespan in years