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7 002711 (3) Lake Management Plans and stocking proposals. that have been' previously approved or are evaluated and accepted under these Procedures. may be reviewed at any time by mutual agreement of the Service and the State wildlife agency to insure compatibility with recovery objectives, Approved Lake Management Plans and stocking proposals will be reviewed every five years (see Section X). (4) Any party may petition the appropriate State wildlife agency to review an approved Lake Management Plan or stocking proposal based on new information that was not previously considered in the development or evaluation of the proposal, Black crappie/blueqill/larqemouth bass: These species are not well adapted to riverine environment and do not appear to establish self-sustaining populations in rivers upon escapement, However. there is concern that these species will flourish in flooded bottomland habitats that are being reconnected with Upper Basin rivers. Triploid qrass carp: Grass carp have been introduced into the United States as a vegetation control, Only certified triploid grass carp are being used in the Upper Basin. because they lack the ability to reproduce, This allows their numbers and distribution to be controlled. Very few triploid grass carp have been captured in the river from past stocking in isolated ponds. Grass carp are not known to prey on other fishes. but can alter habitats of other fishes by changing vegetation. Because of the expense in obtaining these fish. stocking in areas where escapement is possible is highly unlikely, 4, Isolated public and isolated private waters. having no connection to the river. that are above the 50-year floodplain can be routinely stocked with largemouth bass. black crappie. bluegill. mosquitofish. and triploid grass carp, Mosauitofish: Routine stocking of mosquitofish is restricted to isolated ponds and reservoirs outside the 50-year floodplain because they are aggressive omnivores that have been associated with negative impacts on native fish species in the American Southwest, Mosquitofish are currently common (as a result of stocking) in habitats used as nursery areas by endangered Colorado River fish, 5, Isolated public and isolated private waters. having no connection to the river. that are above the 6.500-foot msl (Appendix 0) and above the IOO-year floodplain can be routinely stocked with fathead minnow and channel catfish in addition to those species approved for above the 50-year floodplain, Fathead minnow: Routine stocking restricted to waters outside of the IOO-year floodplain with no connection to the river is based on