Author: Ralph Oscar HilePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 52
Book Description
U.S. Federal Fishery Research on the Great Lakes Through 1956
Author: Ralph Oscar HilePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 52
Book Description
U. S. Federal Research on Fisheries and Limnology in the Great Lakes Through 1964, an Annotated Bibliography
Author: Ralph Oscar HilePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 64
Book Description
Special Scientific Report
Author: The Collected Papers of Ralph Hile, 1928-73: 1928-46
Author: Ralph Oscar HilePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 838
Book Description
The Collected Papers of Ralph Hile, 1928-73: 1947-73
Author: Ralph Oscar HilePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 650
Book Description
Environmental Specimen Banking and Monitoring as Related to Banking
Author: R.A. LewisPublisher: Springer Science & Business Media
ISBN: 9400967659
Category : Medical
Languages : en
Pages : 359
Book Description
There is a great dispar.ity between the ability of the major industrial nations to produce and distribute chemicals and our ability to comprehend the nature and potential severity of unintended consequences for man, his life support systems and the environment generally. Furthermore, the gap between our ability to produce and distribute myriad chemicals and our ability to identify, understand or predict unfavorable environmental impacts may widen. As environmental scientists we are conscious of the interrelatedness, not only of environmental systems, but of nations as well. Materials are continually moved across boundaries by human as well as natural agencies. The extent, rate and nature of transfer for most pollutants is largely unknown. We can only guess which of the numerous chemicals produced are candidates for concern. More important still is our practical ignorance of the mechanisms of chronic effects upon natural systems and of the concentrations, combinations and circumstances that may lead to irreversibilities or to serious consequences for man. We know very little also regarding the potential for or the kinds of indirect effects that might occur. With respect to the environmentltself, we know little of its assimilative capacity with regard to widely dispersed pollutants and their transformation products. But what we do know is disquieting, and a much-improved system for the evaluation and management of toxic and hazardous chemicals is needed.
Resource Publication
Author: Circular
Author: Resource Publication (United States. Bureau of Sport Fisheries and Wildlife)
Author: List of Special Scientific Reports and Special Scientific Report--fisheries of the U.S. Fish and Wildlife Service
Author: U.S. Fish and Wildlife ServicePublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 56
Book Description