Laserfiche WebLink
<br />In summary, the IFG Incremental Methodology was developed as a decision- <br /> <br />making tool for use in the water allocation arena. It links various elements <br /> <br />. <br /> <br />of fisheries behavior science and open channel hydraulics ln an attempt to <br /> <br />describe the effects of incremental changes in streamflow on the instream <br /> <br />> <br /> <br />fishery potential. The methodology may also be used to identify effects of <br /> <br />stream channel alterations on fish habitat conditions or to predict possible <br /> <br />shifts in species composition as a result of flow or channel changes, <br /> <br />The methodology is intended for use in those situations where the flow <br /> <br />regime is the major determinant controlling the fishery resource and field <br /> <br />conditions are compatible with the under-pinning theories and assumptions of <br /> <br />the methodology: 1) steady state flow conditions exist within a rigid channel <br /> <br />and, 2) individuals of a species respond directly to available hydraulic <br /> <br />conditions. If these assumptions can reasonably be made, the methodology has <br /> <br />application to three basic types of questions, <br /> <br />1) Quantification of Instream Flow Requirements <br /> <br />a) Area wide planning <br />b) Reservation or licensing of water rights <br /> <br />2) Negotiation of Water Delivery Schedules <br /> <br />a) Minimum releases <br />'b) Yearly flow regimes (normal vs dry year conditions) <br /> <br />3) Impact Analysis <br /> <br />a) Streamflow depletion <br />b) Streamflow augmentation <br />c) Channel alterations <br /> <br />~ <br /> <br />43 <br />