5US EPA.Biological criteria: national program guidance for surface waters (EPA-440/5-90-004)[S].
6Cairns J, Dickson K L, Westlake G F.Biological monitoring of water and effluent quality (ASTM-STP-607)[M].Baltimore, Md: American Society of Testing Materials,1977.
7US EPA.Rapid bioassessment protocol for use in streams and rivers, benthic macroinvertebrates and fish (EPA-444/4-89-001)[S].
8US EPA.Rapid bioassessment protocol for use in stream and wadeable rivers: periphyton, benthic macroinvertebrates, and fish, second edition (EPA-841-B-99-002)[S].
9US EPA.Concepts and approaches for the bioassessment of non-wadeable streams and rivers (EPA/600-R-06-127)[S].
10US EPA.Guidelines establishing test procedures for the analysis of pollutants: whole effluent toxicity test methods, final rule (EPA-821-F-02-024)[S].