Accession Number : ADA322762

Title :   The Instream Flow Incremental Methodology: A Primer for IFIM.

Descriptive Note : Technical rept.,

Corporate Author : NATIONAL BIOLOGICAL SERVICE FORT COLLINS CO MIDCONTINENT ECOLOGICAL SCIENCE C ENTER

Personal Author(s) : Stalnaker, Clair ; Lamb, Berton L. ; Henriksen, Jim ; Bovee, Ken ; Bartholow, John

PDF Url : ADA322762

Report Date : MAR 1995

Pagination or Media Count : 53

Abstract : Instream flow methods have been developed predominantly by biologists and hydrologists working for agencies having regulatory responsibility related to water development and management (Stalnaker and Arnette 1976). Such efforts over the last 30 years have provided the impetus for detailed ecological studies leading to a significant growth in the understanding of the relations between stream flow and aquatic habitats. Most of the empirical evidence gathered to date has focused on fish and benthic macro-invertebrate habitat requirements, with recent emphasis on the relation between stream flow and woody riparian vegetation and river-based recreation (Gore 1987; Orth 1987; Brown 1992; Shelby et al. 1992; Scott et al. 1993). Water management problem solving has matured from setting fixed minimum flows with no specific aquatic habitat benefit to incremental methods in which aquatic habitats are quantified as a function of stream discharge. Within this historical progression we also saw the application of a water budget which set the stage for having the fisheries manager be an integral part of an interdisciplinary decision-making system. This chapter will review the progression of circumstances and techniques leading to the development of IFIM and point toward what the future might hold.

Descriptors :   *WATER, *HYDROLOGY, *ENVIRONMENTAL IMPACT, *ENVIRONMENTAL MANAGEMENT, *HABITATS, *FISHES, *ECOLOGY, *DOWNSTREAM FLOW, *AQUATIC ANIMALS, METHODOLOGY, DECISION MAKING, BIOLOGY, HUMANS, PROBLEM SOLVING, FLOW, BUDGETS, BANKS(WATERWAYS), VEGETATION, FISHERIES, WOOD, STREAMS, BIOLOGISTS.

Subject Categories : Biology
      Biological Oceanography
      Hydrology, Limnology and Potamology
      Environmental Health and Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE