A guide to instream habitat survey methods and analysis
نویسندگان
چکیده
6
منابع مشابه
Habitat Simulation Technique as a Powerful Tool for Instream Flow Needs Assessment and River Ecosystem Management
Instream flow needs (IFN) assessment studies are performed to provide guidelines for stream water management and to assess the impacts of different water projects such as weirs, dams and stream diversions on the available fish habitat. The physical habitat simulation is one of the IFN assessment methods and also a powerful tool in management of river ecosystem that has not become a common metho...
متن کاملModification of Tennant and Wetted Perimeter Methods in Simindasht Basin, Tehran Province
Environmental Flow Requirement (EFR) is defined as the flow that is necessary to ensure the existence of habitats in water resources systems. EFR is defined in rivers as flow index commonly. Tennant method is the most popular hydrological method in rivers and based on the historic flow data. The most common method of hydraulic rating method is the wetted perimeter method. Habitat simulation tec...
متن کاملStatus of Instream Flow Legislation and Practices in North America
This paper presents the results of two nonstatistical surveys (completed in 1981 and 1986) that solicited information from state and federal agencies concerning instream flow issues and practices in North America. Forty-six states and 12 Canadian provinces responded to the survey. Fifteen of the 46 states reported legislative recognition of instream flows for fisheries protection. In Canada, in...
متن کاملMesoHABSIM: A concept for application of instream flow models in river restoration planning
This paper describes the methodological concept for application of physical habitat models to restoration planning at a whole river scale. The design proposed here builds upon the Instream Flow Incremental Methodology but is focused at the need for managing large-scale habitats and river systems. It modifies the data acquisition technique and analytical resolution of standard approaches, changi...
متن کاملTwo-Dimensional Flow Modeling as a Tool for Meso-Habitat Delineation
The Instream Flow Incremental Methodology (IFIM) and the Physical Habitat Simulation System (PHABSIM) are commonly used in the instream flow water allocation process. This methodology is based on the premise that physical habitat plays a major role in structuring fish populations and that physical habitat can be described through modeling of rivers. PHABSIM is a series of programs designed to c...
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