Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 720

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Author: John J. Manzi
Publisher: Elsevier Science & Technology
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 480

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Book Description
Hardbound. Clams have been harvested along the coasts of North America for as long as records have been kept. They support commercial, sport and subsistence fisheries although unfortunately, with few exceptions, the harvest of these invertebrates is declining. This decline is probably caused by a number of factors including pollution and overfishing. In an effort to ameliorate this situation, interest in the aquaculture of these species has grown.Intensive semi-controlled clam culture has been attempted in North America for almost three decades. However, it was not until the last decade that a number of entrepreneurs actually began clam farming and developing successful and profitable operations. This success has been possible because of numerous scientific and practical contributions made by a great number of scientists, growers, and clammers over the years, and by a healthy market demand caused by a downward trend in the wild harvest.Many of the

Author:
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 704

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Author:
Publisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 882

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Author:
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 68

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Book Description

Author:
Publisher:
ISBN:
Category : Pollution
Languages : en
Pages : 808

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Book Description
Indexes material from conference proceedings and hard-to-find documents, in addition to journal articles. Over 1,000 journals are indexed and literature published from 1981 to the present is covered. Topics in pollution and its management are extensively covered from the standpoints of atmosphere, emissions, mathematical models, effects on people and animals, and environmental action. Major areas of coverage include: air pollution, marine pollution, freshwater pollution, sewage and wastewater treatment, waste management, land pollution, toxicology and health, noise, and radiation.

Author:
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ISBN:
Category : Canada
Languages : en
Pages : 1222

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Book Description
An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.

Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1128

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Book Description

Author: Peter B. Eaton
Publisher: Dartmouth, N.S. : Environment Canada, Atlantic Region
ISBN:
Category : Atlantic Provinces
Languages : en
Pages : 480

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Book Description
Overview of the environment of the Atlantic Provinces at a particular time. The report identifies problem areas, describes important conditions and trends, and outlines the direction in which the region is headed environmentally. The central theme of the report is the relationship between human activities and environmental quality, human health, and the economy. The concept of sustainability is explored, both in terms of ecosystem sustainability, and the long-term sustainability of the current use of the environment and its resources. The report describes the environmental resource base, including ecozones, demographics, air, water, land, and wildlife; the stresses, including acid rain, dioxins and furans, wildlife and fish habitat, and environmental impact assessment; and a diagnosis for sustained use of air, water, land, special places and species, and energy. A glossary is included.

Author: Martin Lewis Hall Thomas
Publisher:
ISBN:
Category : Nature
Languages : fr
Pages : 324

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Book Description
The book describes the main marine and coastal biological systems of Passamaquoddy Bay and adjacent waters and the oceanographic and meteorological characteristics of the area. Subject areas begin with meteorolgy and oceanography. The second group covers the intertidal systems with chapters on rocky intertidal shores, rock pools, coarse sedimentary shores and salt marshes. The third general section covers hard and sedimentary sublittoral habitats. Following chapters discuss pelagic systems under the headings fishes, phytoplankton, larger zooplankton, and microzooplankton. Three chapters deal with the birds, amphibians and reptiles, and marine mammals. Finally coastal vegetation is described.