7197
Through integrating chemical , biochemical and morphological analyses , this study investigated the effects of multiple pollutants on the gill mitochondria - rich cells ( MRCs ) in two fish species , Astyanax fasciatus and Pimelodus maculatus , collected from five sites ( FU10 , FU20 , FU30 , FU40 and FU50 ) in the Furnas Hydroelectric Power Station reservoir .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None