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(("biological assessment" OR bioassess OR bioindicat) AND (aquatic OR "water quality")) NOT (toxicity OR histop OR bioaccum OR biomarker OR mitoch OR embryotox OR "muscle tissues" OR xenobio OR "toxic substances" OR bioassay OR food OR mitosis)
Remove constraint All Fields: (("biological assessment" OR bioassess OR bioindicat) AND (aquatic OR "water quality")) NOT (toxicity OR histop OR bioaccum OR biomarker OR mitoch OR embryotox OR "muscle tissues" OR xenobio OR "toxic substances" OR bioassay OR food OR mitosis)
Topic
Caddisflies
Remove constraint Topic: Caddisflies
Topic
Freshwater insects
Remove constraint Topic: Freshwater insects
Topic
Mayflies
Remove constraint Topic: Mayflies
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