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Several key species , including delta smelt , longfin smelt , striped bass , and threadfin shad have been declared " species of interest " because of a stepwise decline in abundance beginning in 2001 .
 striped bass
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:
 striped bass