Aquaculture, resource use, and the environment by Claude Boyd, Aaron McNevin PDF

By Claude Boyd, Aaron McNevin

ISBN-10: 0470959193

ISBN-13: 9780470959190

Show description

Read Online or Download Aquaculture, resource use, and the environment PDF

Similar oceans & seas books

Download PDF by Robert L. Lippson: Life along the Inner Coast: A Naturalist's Guide to the

For many years, marine scientists Robert and Alice Jane Lippson have traveled the internal Coast—the rivers, backwaters, sounds, bays, lagoons, and inlets stretching from the Chesapeake Bay to the Florida Keys—aboard their trawler, Odyssey . The fruits in their leisurely trips, lifestyles alongside the internal Coast is a guidebook to the crops, animals, and habitats present in probably the most biologically varied areas on this planet.

Download e-book for kindle: Fisheries: While Stocks Last (OECD Insights) by Patrick Love

###############################################################################################################################################################################################################################################################

New PDF release: Surimi and Surimi Seafood, Third Edition

Originating in Japan within the 12th century, surimi is subtle fish myofibrillar proteins produced via a number of techniques. the improvement of the surimi product crabstick in Japan within the Seventies performed an enormous function in globalizing surimi and increasing surimi seafood intake to the us, Europe, and Russia.

Extra info for Aquaculture, resource use, and the environment

Sample text

These general areas of concern are not unlike the list of concerns that eNGOs would have for terrestrial agriculture, or for that matter, most other industries. 4 do not apply equally across all aquaculture species or all production methods. 4 Major issues that concern environmentalists about aquaculture. Land use modifications Wetland alterations, cropland conversion Excessive use of freshwater Water pollution Eutrophication, turbidity and sedimentation, and salinization Excessive energy use and greenhouse gas emissions Wasteful use of fish meal Negative effects on biodiversity Pollution, capture of wild aquatic animals for broodstock, exotic species, genetically modified species, bird and other predator control, entrainment of small aquatic organisms in pumps, spread of diseases to wild populations Antibiotics and other chemicals Antibiotic resistance in organisms, toxicity of certain compounds, residues in aquaculture products Socioeconomic issues Conflicts with other resource users, worker safety and other rights, etc.

There are many “trade-offs” that should be considered when evaluating the environmental effects of aquaculture (Boyd et al. 2007). For example, low-input aquaculture in ponds does not require feed and aeration or produce highly polluted effluent, but production is low. More land area must be converted to water surface area in ponds for extensive culture than in those for intensive culture for the same amount of production. The reduction in energy, feed ingredient use, and waste discharge resulting from low-input aquaculture must be weighed against the greater amount of land and water needed per unit of production.

Environmental issues Many entities to include primary, secondary, and higher educational institutions, governmental agencies, international development organizations, and nongovernmental organizations (NGOs) are interested in promoting wise resource use, pollution abatement, and environmental sustainability. There has been growing concern for several decades over excessive resource use, pollution, and overpopulation leading to unsustainability of the earth’s ecosystems. The large environmental NGOs (eNGOs)—Sierra Club, World Wildlife Fund, Greenpeace, The Nature Conservancy, Environmental Defense Fund, and The Audubon Society to name a few—have lead the charge for environmental responsibility.

Download PDF sample

Aquaculture, resource use, and the environment by Claude Boyd, Aaron McNevin


by Jason
4.5

Rated 4.23 of 5 – based on 20 votes