Excerpt from 25 Years of Federal Fishery Research on the Great Lakes Although the Service made a limnological survey of eastern Lake Erie possible by supplying the services of the research vessel Shearwater, staff members of Great Lakes did not participate actively in the scientific activities of that survey. Rather the Great Lakes staff concentrated on limnological studies directed toward an appraisal of the effects of pollution in the western end of Lake Erie and on studies of savings gear (the first investigations of ...
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Excerpt from 25 Years of Federal Fishery Research on the Great Lakes Although the Service made a limnological survey of eastern Lake Erie possible by supplying the services of the research vessel Shearwater, staff members of Great Lakes did not participate actively in the scientific activities of that survey. Rather the Great Lakes staff concentrated on limnological studies directed toward an appraisal of the effects of pollution in the western end of Lake Erie and on studies of savings gear (the first investigations of this type known to have been carried out in North America). The hybrid trap net de signed to reduce the capture and handling of undersized fish which was recommended as a result of these studies has long since become a standard gear. In fact many fishermen who at first opposed the recommendations as radical and impractical later voluntarily exceeded the original specifications in providing for the release of small fish. During the course of the field Operations, staff members seized upon the cc casion to amass large amounts of biological materials and data that were later to form the basis for a number of publications. Indeed, the store has not yet been fully exhausted. All of the several field projects carried out in the late l92o's and early l930's were similar to the Lake Erie investigations in that they were initiated to obtain information on immediately pressing problems; support from other agencies through allocation of funds, assignment of personnel, or supply of equipment made them possible or permitted operation on a far more effective scale than the relatively modest Service budget would have allowed; they provided the opportunity for the collection of biological materials and data. Brief comments on these projects are given in the following paragraphs. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.