he Tennessee Valley Authority (TVA) recommended in their final programmatic environmental assessment to install what’s called a bio-acoustic fish fence (BAFF) that includes sound signals, directional strobe lighting, and a bubble curtain in order to keep the invasive species of Asian carp from Tennessee rivers.
According to the assessment, the species “has the potential to threaten native ecosystems, rare and protected species, sports fisheries, and public safety, which can lead to reduced recreation, tourism, and property values; and ultimately impact local economies.”
The TVA notes in their detailed report that there are are four fish that fall into the Asian carp family; the bighead carp, the silver carp, the black carp, and the grass carp. The species was introduced to America in the 1960s and 1970s. The fish were imported to improve the water quality in fish farms, and after they were utilized for other aquaculture purposes were allowed to be released into the Mississippi River.
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