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Pineview Reservoir Invasive Mollusks Preventive Measures - Centrarchidae Dock Habitat Installation
Region: Northern
ID: 5388
Project Status: Completed
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Project Start Date
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Project End Date
Fiscal Year Completed
2023
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Final Methods
DWR ordered habitat structures from Mossback. These structures have been installed in several reservoirs in the region. They provide cover in areas devoid of other natural habitats. DWR received these structures last fiscal year but was not able to install them until FY23.
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Project Narrative
Pineview Reservoir has four (4) main boat launches around its shoreline. We were interested in installing some centrarchid habitat underneath boat docks at the ramp locations. Those locations are Port Ramp, Cemetery Point, Anderson Cove, and the Yacht Club. Port Ramp recently received a new section of docks and was chosen for the installation of the structures. Water elevations also prevented DWR from installing at the other locations this fall. All of these locations have the possibility of being a vector point for an illegal introduction of Quagga or Zebra Mussels. Bluegill and Black Crappie will use the habitat for cover. Hopefully, by providing habitat at the boat ramps they will forage on any microscopic life stages of Quagga or Zebra Mussels that could be introduced by a dirty boat. Research has indicated that these species will feed on these stages of mussels. DWR ordered these structures from Mossback habitat structures. When DWR received them the reservoir was still frozen and then had to wait for new docks to be installed which just happened at the end of the summer boating season. DWR opted to install only four structures due to very low water conditions and the chance that water would continue to be very low. DWR assembled the structures on the dock at Port Ramp on September 26, 2022. Each habitat kit comes with all the pieces to create three structures. These parts include a 4" tube with holes in them to slide horizontal pieces through them. DWR placed the tube on the dock and pushed the horizontal parts through the tube until all the holes were filled. A bolt, cable, chain, and quick link are provided to wrap around a part on a dock to hang these structures. DWR used the cable and chain included in the habitat to hang the structures at the end and the first joint in the dock. As the dock section is raised and lowered with water elevations, they will continue to hang underneath the docks. They are easily removed by removing the quick link when removing the docks is necessary for the winter. They also hang far enough in the water that boat propellers cannot hit them.
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Future Management
DWR will continue to add additional structures as more dock sections are installed next spring. DWR will also visually inspect them for centrarchid use. DWR may also be able to use underwater cameras to inspect the structures too. AIS personnel could inspect the habitats for mussels too.
Submitted By
Clint Brunson
Submitted Time
09/28/2022 14:05:31
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