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Condición: Good. 1st. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Hardcover. Condición: Good. Estado de la sobrecubierta: Very Good. Hard Cover - Good/VG - Book and dust jacket are clean and tight with light wear - Ex-Library - Illustrated.

Hardcover. Condición: Very Good. Estado de la sobrecubierta: Very Good. Clean hardback, in DJ with minor edgewear.

Hardcover. Condición: Very Good. Dust Jacket Included. 1st Edition. vii, 136 p., well illustrated in color. Published at $25.00. Oversize [b 120 bt b opp Vrgn Mry]. Ben Asen (Photographs) (ilustrador).

Soft cover. Condición: Very Good. No Dust Jacket. Solid and clean SOFT COVER, 5 7/8 by 8 14/ in., with mild wear. This annual report from the United Nations is in great shape. 151 pp.RUR 025532 LIVEZEY.

Paperback. Condición: Very Good. Most items will be dispatched the same or the next working day. A copy that has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Paperback. Condición: Very Good. 233 pp., Illus, Orig Grn Illus Paperback, 4to, VG, 1st ed.

Soft cover. Condición: Fine. Near fine condition. (J-7.).

Paperback. Condición: Very Good. Instrumentos Internacionales Relativos al uso de Antimicrobianos en el Sector de la Salud Humana y los Sectores Animal y Vegetal This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. .…

Paperback. Condición: Very Good. FAO Fisheries Circular No. 853. Spine sunned, interior clean and unmarked.

Condición: New. pp. xii + 118 Figures.

Paperback. Condición: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee.

Paperback. Condición: Very Good. No Dust Jacket. Paperback. French language. Binding is sound; pages are tight, bright and clean; contents are clear. AF. Used.

Condición: New.

Condición: New. . 2008. Paperback. . . . .

Hardbound. Condición: As New. New. Contents I. Introduction 1. Scope and purpose of this study report. 2. Content of this study report. II. Chemicals and their applications 1. Chemicals associated with structural materials. 2. Soil and water treatments. 3. Fertilisers. 4. Disinfectants. 5. Antibacterial agents. 6. Therapeutants other than antibacterials. 7. Pesticides. 8. Herbicides/Algaecides. 9. Feed additives. 10. Anaesthetics. 11. Hormones. III. Issues of concern 1. Persistence in aquatic environments. 2. Residues in non cultured organisms. 3. Toxicity to non target species. 4. Stimulation of resistance. 5. Effects on sediment biogeochemistry. 6. Nutrient enrichment. 7. Health of farm workers. 8. Residues in seafood. IV. Problems and solutions 1. Intensification fish health management and access to information. 2. Residues methods and enforcement. 3. Prophylactic use of antibacterials. 4. Quality assurance of chemicals used in aquaculture. 5. Need for data on quantities of chemicals used. 6. Difficulties in effluent treatment. 7. International trade. 8. Need for environmental fate and effects information. 9. Need for alternatives. V. Conclusions and Recommendations on the safe and effective use of chemicals in coastal aquaculture. VI. References. Annex I. Chemicals used within the aquaculture industry are identified and for each chemical a brief summary of information is provided when available on its intended purpose scale of application the aquacultural sectors and geographic locations of principal use and potential impacts on the environment and human health. Environmental issues arising from the properties of aquacultural chemicals are discussed. The use of most chemicals in aquaculture if carried out properly can be regarded as wholly beneficial with no attendant adverse environmental effects or increased risks to the health of aquacultural workers. Concerns appear warranted however regarding the over use and misuse of certain chemicals for which proper risk assessments with respect to the marine environment have not been conducted. A further legitimate concern and a barrier to conducting an exhaustive review of these practices is the lack of availability of quantitative data on contemporary chemical use in the aquaculture industry. The viability of contemporary aquaculture is contingent on the use of chemicals. Accordingly while the overriding consideration should be minimizing the quantities of chemicals applied most current uses of chemicals are essential. Recognising that chemotherapeutants and pesticides in current use are of varying effectiveness and hazard recommendations are provided to promote the safe and effective use of chemicals in coastal aquaculture. Governmental authorities the scientific community and the aquacultural and pharmaceutical industries all have important roles to play to ensure that chemical use is consistent with protection of environmental quality and human health. In particular mechanisms need to be put in place and enforced for the registration and control of aquacultural chemicals to protect the environment and human health and to ensure the sustainable growth of the aquaculture industry. 45 pp. …

Condición: New.

Condición: New. pp. vi + 40 + 5 Figures.

Condición: New. pp. v + 90 Figures, Illus., Maps.

Paperback. Condición: Brand New. illustrated edition. 141 pages. 11.50x8.25x0.50 inches. In Stock.

Condición: New. . 2008. Paperback. . . . . Books ship from the US and Ireland.

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Clean from markings. In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,300grams, ISBN:0852381107.…

Soft cover. Condición: Very Good. Very good soft cover with an uncreased spine. Nineteen nutritionally significant trace elements are considered individually in chapters covering essential elements, such as iodine and zinc, elements like manganese and silicon that are probably essential, and others including arsenic and lead that can be toxic but also may have essential functions.…

Condición: New. COSECHADORAS DE CULTIVOS INDUSTRIALES.

Condición: New. pp. 133.

Condición: New. pp. xi + 152 Figures.

hardcover. Condición: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Condición: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,550grams, ISBN:9789251055861.

Condición: New.

Condición: New. pp. 133 1st.