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Search for adult invasive mussels in Tiber comes up empty

Search for adult invasive mussels in Tiber comes up empty

Wednesday, August 16, 2017/Categories: Mussel Response News/Tags: Tiber

Divers searched for adult aquatic invasive mussels at Tiber Reservoir last week, but found none.

The five divers involved in the effort were from the U.S. Fish and Wildlife Service and coordinated by Montana Fish, Wildlife and Parks. The primary search area was Tiber Dam up to a depth of about 35 feet.

With its rock structure, the dam is good habitat for the invasive mussels, which prefer solid substances, like rocks, to attach to. However, deeper than 35 feet, silt reduced the habitat significantly.

The divers are part of FWP’s monitoring plan for Tiber Reservoir after water samples last year came back positive for aquatic invasive mussel larvae. The monitoring plan also includes an increased frequency of water sampling at the reservoir.

The divers also searched rock outcroppings around Turner Point at Tiber Reservoir. No adult invasive mussels were discovered.

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