Petri Dish

Photo By/Credit
Laura Mahoney/USFWS
Media Usage Rights/License
Public Domain
Banner Image
Fish health biologists use a petri dish filled with agar to grow and identify different bacterial cultures taken from fish. Biologists than test these cultures using different antibiotics to check which antibiotic will be most effective in treating a specific illness within a fish population.
Ecosystem
River/stream
Subject tags
Anadromous fish
Animal health