Shrimp as a potential bioindicator for assessing aquatic pollutants, systematic review.

Pollution of water and seas is increasing. Therefore, we need a reliable system to assess this pollution. Sampling water to examine pollution may not fully show the extent of pollution. Water is affected by atmospheric conditions. In these circumstances, the level of pollution may be higher or lower than the actual value. Shrimp are a benthic organism that can accumulate pollutants, so by examining these organisms, the extent of water pollution can be determined. In this systematic study, the ability of shrimp to assess pollutants was investigated. Initially, databases were searched with relevant keywords. After initial evaluation, 17 manuscripts were considered for full evaluation and data extraction. Protein biomarkers, including metallothionein, and enzymes, including cholinesterases, were important evaluation indicators in the studies. The most frequently investigated pollutants were trace metals and PAHs.