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Effects of Trawling and Dredging on Seafloor Habitat

Effects of Trawling and Dredging on Seafloor Habitat PDF 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.

Effects of Trawling and Dredging on Seafloor Habitat

Effects of Trawling and Dredging on Seafloor Habitat PDF 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.

International Complete Collection of R&D Information about Traditional Chinese Materia Medica and Biotechnology Enterprises

International Complete Collection of R&D Information about Traditional Chinese Materia Medica and Biotechnology Enterprises PDF Author: Zhengsong Zhan
Publisher: World Scientific
ISBN: 9814291560
Category : Medical
Languages : en
Pages : 1006

Book Description
The International Complete Collection of R&D Information about Traditional Chinese Materia Medica (TCMM) and Biotechnology (BT) Enterprises is designed as an informative medicinal reference directory listing of up-to-date R&D information about TCMM, medical biotechnology, and related medical equipment companies. The focus of this valuable and practical directory is on providing a comprehensive coverage of the most recent developments in scientific research, patents and major products of about 3,000 companies from 50 countries covering the five continents: Asia, Europe, America, Africa and the Oceania. The resource material and information are relevant and compulsory to practitioners and professionals in the fields of TCMM, medical biotechnology, biochemical industry and related medical instrumentation/equipment, as well as to organizational departments of the medicinal information management, intelligence, logistics and trade. The directory also opens up and serves as an important window through which biotech professionals master product information of their counterparts across the world. The directory will benefit professionals of medical heath, TCMM, biotechnology and related fields, as well as academics and students, executives of research, information media staffs and translators.

Car Safety Wars

Car Safety Wars PDF Author: Michael R. Lemov
Publisher: Rowman & Littlefield
ISBN: 1611477468
Category : History
Languages : en
Pages : 289

Book Description
Car Safety Wars is a gripping history of the hundred-year struggle to improve the safety of American automobiles and save lives on the highways. Described as the “equivalent of war” by the Supreme Court, the battle involved the automobile industry, unsung and long-forgotten safety heroes, at least six US Presidents, a reluctant Congress, new auto technologies, and, most of all, the mindset of the American public: would they demand and be willing to pay for safer cars? The “Car Safety Wars” were at first won by consumers and safety advocates. The major victory was the enactment in 1966 of a ground breaking federal safety law. The safety act was pushed through Congress over the bitter objections of car manufacturers by a major scandal involving General Motors, its private detectives, Ralph Nader, and a gutty cigar-chomping old politician. The act is a success story for government safety regulation. It has cut highway death and injury rates by over seventy percent in the years since its enactment, saving more than two million lives and billions of taxpayer dollars. But the car safety wars have never ended. GM has recently been charged with covering up deadly defects resulting in multiple ignition switch shut offs. Toyota has been fined for not reporting fatal unintended acceleration in many models. Honda and other companies have—for years—sold cars incorporating defective air bags. These current events, suggesting a failure of safety regulation, may serve to warn us that safety laws and agencies created with good intentions can be corrupted and strangled over time. This book suggests ways to avoid this result, but shows that safer cars and highways are a hard road to travel. We are only part of the way home.

No Accident

No Accident PDF Author: Neil Arason
Publisher: Wilfrid Laurier Univ. Press
ISBN: 1554589657
Category : Political Science
Languages : en
Pages : 499

Book Description
It is possible to eliminate death and serious injury from Canada’s roads. In other jurisdictions, the European Union, centres in the United States, and at least one automotive company aim to achieve comparable results as early as 2020. In Canada, though, citizens must turn their thinking on its head and make road safety a national priority. Since the motor vehicle first went into mass production, the driver has taken most of the blame for its failures. In a world where each person’s safety is dependent on a system in which millions of drivers must drive perfectly over billions of hours behind the wheel, failure on a massive scale has been the result. When we neglect the central role of the motor vehicle as a dangerous consumer product, the result is one of the largest human-made means for physically assaulting human beings. It is time for Canadians to embrace internationally recognized ways of thinking and enter an era in which the motor vehicle by-product of human carnage is relegated to history. No Accident examines problems related to road safety and makes recommendations for the way forward. Topics include types of drivers; human-related driving errors related to fatigue, speed, alcohol, and distraction and roads; pedestrians, cyclists, and public transit; road engineering; motor vehicle regulation; auto safety design; and collision-avoidance technologies such as radar and camera-based sensors on vehicles that prevent crashes. This multi-disciplinary study demystifies the world of road safety and provides a road map for the next twenty years.

Contracts, Agreements and Leases

Contracts, Agreements and Leases PDF Author: Cincinnati, Hamilton and Dayton Railway Company
Publisher:
ISBN:
Category : Railroads
Languages : en
Pages : 384

Book Description


Labor's Lot

Labor's Lot PDF Author: Elizabeth A. Povinelli
Publisher: University of Chicago Press
ISBN: 0226676749
Category : History
Languages : en
Pages : 343

Book Description
Analysis of the role of labour in every day activities and its influence on the construction of identity among the Belyuen Aborigines, Cox Peninsula, NT; Western definitions of labour; Aboriginal relationship to land and land ownership; concepts of knowledge and the role of story; negotiation of the land claim process - Kenbi land Claim; representation of pre-colonial, colonial and postcolonial Aboriginality in the Darwin region - Laragiya and Wagaitj; Aboriginal women's use and narratives of the past; interpretation of mythic labour and contemporary actions - spirit children, totems; activities affecting the mythic landscape - hunting and sweat; Belyuen economic structures; proportion of bush and store bought food in the diet; use of time; relations with the market economy - local stores, use of money; history of land use and colonial ownership in the Darwin region; contemporary Aboriginal use of the Belyuen region - settlement patterns; process of forming and maintaining cultural identity in contemporary political and economic power structures.

Elwha River Ecosystem and Fisheries Restoration Act

Elwha River Ecosystem and Fisheries Restoration Act PDF Author: United States. Congress. Senate. Committee on Energy and Natural Resources
Publisher:
ISBN:
Category : Law
Languages : en
Pages : 176

Book Description


Hardware Hacker

Hardware Hacker PDF Author: Don Lancaster
Publisher:
ISBN: 9781882193042
Category :
Languages : en
Pages : 186

Book Description


Heart-pine Russia

Heart-pine Russia PDF Author: Jane Tussey Costlow
Publisher:
ISBN: 9780801450594
Category : History
Languages : en
Pages : 0

Book Description
Costlow explores the central place the forest came to hold in a century of intense seeking for articulations of national and spiritual identity.

Disco

Disco PDF Author: Bill Bernstein
Publisher:
ISBN: 9781909526235
Category : Disco dancing
Languages : en
Pages : 0

Book Description
The deluxe edition of Disco: The Bill Bernstein Photographs is limited to 100 signed and numbered copies. This collector's item includes a signed photograph exclusive to this edition and is presented in a bespoke slipcase. Containing many previously unpublished photographs, Disco takes the viewer on an access-all-areas tour of late-'70s New York nightlife. "Who were these people of the night...? It was the Posers. The Watchers. The Posers watching other Posers watching the Watchers, watching the Dancers, watching themselves." Bernstein's eye was drawn to the characters that lived for the night, rather than the celebrities, the unknown men and women who were transformed by the nightclub haze, and this is one reason his photographs from this time feel so authentic and immersive.