51037
Following the initiation of an experimental rainbow trout cage farm in a small boreal lake , dramatic reductions in mysis concentrations associated with a decrease in dissolved oxygen were observed .
 rainbow trout, mysis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 rainbow trout, mysis