Author: Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 146
Book Description
Habitat Evaluation Procedures (HEP).
Author: Aquatic Habitat Assessment
Author: Mark B. BainPublisher:
ISBN:
Category : Aquatic habitats
Languages : en
Pages : 234
Book Description
Abstract: Habitat is now the basis of most impact assessments and resource inventories, and it is the basis of many species management plans, mitigation planning, and environmental regulation. Habitats are relatively stable through time, easily defined in intuitive physical terms, and provide a tangible resource for negotiations and decision making. Numerous and varied methods of analyzing and reporting habitat conditions have been developed by federal, state, provincial, and private agencies. Habitat assessment approaches vary greatly among regions of the continent. The great variability in methods and an unusually wide range of practices have impeded the ability of agencies to share and synthesize information. A diversity of methods is desirable in the initial stages of a rapidly developing field, but enough time has passed to assess the state-of-knowledge and identify the best of the currently used methods and techniques. This manual is intended to provide fisheries biologists with a limited set of techniques for obtaining aquatic habitat data. The manual also describes the range of information collected and used in agency habitat analyses. Agencies planning habitat programs should review the synthesis of established and documented methods being used in North America (Appendix 1) and the planning recommendations in Chapter 2. Then, the remaining chapters should be reviewed to determine what types of habitat data should be included in the agency's program.
Guidance on Use of Habitat Evaluation Procedures and Suitability Index Models for CERCLA Application
Author: Publisher:
ISBN:
Category : Environmental impact analysis
Languages : en
Pages : 58
Book Description
R1/R4 (Northern/Intermountain Regions) Fish and Fish Habitat Standard Inventory Procedures Handbook
Author: Guidelines for Evaluating Fish Habitat in Wisconsin Streams
Author: Timothy D. SimonsonPublisher:
ISBN:
Category : Aquatic habitats
Languages : en
Pages : 44
Book Description
Fish-stream Identification Guidebook
Author: British Columbia. Ministry of ForestsPublisher:
ISBN:
Category : Sports & Recreation
Languages : en
Pages : 50
Book Description
The British Columbia Forest Practices Code specifies planning and operational guidelines for each phase of timber harvesting operations around streams, lakes, and wetlands. This guide describes suitable practices to meet the objectives of the riparian management regulations within the Code, specifically the requirement to correctly identify streams on the basis of fish presence in order to ensure the protection of fish populations and habitats during all phases of forest harvesting. The guide defines the classes of streams distinguished for aquatic ecosystem and riparian zone management, identifies fish species that define a stream as fish-bearing under the Code, and describes factors influencing fish-stream identification such as stream reach, gradient, stream size, natural barriers, and fisheries sensitive zones. The guide concludes with methods for identifying fish streams, including measurement, sampling, data recording, and mapping procedures.
Comparison of the Use of the Habitat Evaluation Procedures (HEP) and the Instream Flow Incremental Methodology (IFIM) in Aquatic Analyses
Author: Carl L. ArmourPublisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 66
Book Description
Improving Fish Stock Assessments
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309174406
Category : Technology & Engineering
Languages : en
Pages : 194
Book Description
Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries dataâ€"for example underreporting or changes in the likelihood that fish can be caught with a given type of gearâ€"can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.
Stream Enhancement Guide
Author: D.B. Lister & AssociatesPublisher: Government of Canada, Fisheries and Oceans, 1980 (1983 printing)
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 112
Book Description
Gully Assessment Procedures Guidebook
Author: British Columbia. Ministry of ForestsPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 48
Book Description
Gives a framework for site prescriptions in coastal watersheds, directing field staff to the most critical factors to consider when evaluating gullies for silvicultural prescriptions or post harvest rehabilitation.