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Author: C. Kerry Overton Publisher: ISBN: Category : Ecosystem management Languages : en Pages : 530
Book Description
"This user's guide and reference document describes the physical features of the Salmon River Basin, Idaho, stream channels that represent "natural conditions" for fish habitat-that is, streams that have not been influenced by major human disturbances. The data base was created to assist biologists and resource managers. It describes resource conditions that can be achieved through management objectives."
Author: C. Kerry Overton Publisher: ISBN: Category : Ecosystem management Languages : en Pages : 530
Book Description
"This user's guide and reference document describes the physical features of the Salmon River Basin, Idaho, stream channels that represent "natural conditions" for fish habitat-that is, streams that have not been influenced by major human disturbances. The data base was created to assist biologists and resource managers. It describes resource conditions that can be achieved through management objectives."
Author: Kraufvelin, Patrik Publisher: Nordic Council of Ministers ISBN: 9289346655 Category : Science Languages : en Pages : 96
Book Description
Many fish species in the Baltic Sea are dependent on shallow and sheltered near-shore habitats for their spawning, nursery, feeding and migration. Still, the role of these essential fish habitats, EFH, for the development and support for fish production has received little attention. As coastal EFH often are found in areas heavily impacted by humans, they are subject to many threats and therefore management needs are urgent. EFH also provide and support important ecosystem services and are included in national/international agreements and legislative acts. Despite this, the conservation status of EFH is generally poor in the region. Due to these shortcomings and needs, a workshop was set up to review the importance and protection of as well as threats to coastal EFH in the Baltic Sea. This report describes the outcome of the workshop and future directions for work in this research area.
Author: Philip Roni Publisher: Food & Agriculture Org. ISBN: 9789251053546 Category : Business & Economics Languages : en Pages : 140
Book Description
This technical paper reviews current information on the effectiveness of habitat rehabilitation techniques for inland fisheries, based on published evaluations of projects including studies on roads improvements and sediment reduction, riparian and floodplain rehabilitation, placement of habitat structures in lakes and streams, and the addition of nutrients to increase aquatic production. It also sets out information on planning, prioritising and monitoring rehabilitation projects.
Author: BLM Anadromous Fish Habitat Team Publisher: ISBN: Category : Anadromous fishes Languages : en Pages : 40
Book Description
"Describes anadromous fish resources on public lands, summarizes current management, and outlines a twelve year program (FYs 1989-2000) to maintain, protect, and enhance anadromous habitats through specific management actions and habitat improvement projects"--Page 3.
Author: National Research Council Publisher: National Academies Press ISBN: 0309083400 Category : Science Languages : en Pages : 137
Book Description
Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Author: C. Kerry Overton
Author: C. Kerry Overton
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Author: Roger N. Clark
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Author: Kraufvelin, Patrik
Author: Philip Roni
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Author: BLM Anadromous Fish Habitat Team
Author: National Research Council