99335
A further 40 species that occur in the river today , notably the brown trout , were introduced during the 19th and 20th " centuries , mainly for sport fishing .
 brown trout
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:
 brown trout