00000nam 2200000zi 4500 9.878570 CaOODSP 20221107165258 m go d f cr |n||||||||| 190827s1981 nfca #ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- Fs70-8/81-76E-PDF Randall, Robert George, author. Production studies as a focus for assessing juvenile Atlantic salmon populations / by R.G. Randall. St. Andrews, N.B. : Marine Fish Division, Department of Fisheries and Oceans, Biological Station, [1981] 1 online resource (9 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 81/76 "This paper not to be cited without permission of the author." Includes bibliographical references (pages 5-6). "Proper management of Atlantic salmon during the freshwater phase of its life cycle will depend to a large extent on our knowledge of how salmon production in nursery streams is affected by different environmental and biological features. Production here is used in a defined biological sense, i.e., it is the rate at which biomass is being produced in the natural environment. At present, juvenile salmon populations are monitored by estimating population densities at a large number of sites once annually. I am proposing in this document that this field program should be modified so that long-term studies of production can be made; production estimates could then be used as a more effective focus for the annual assessment of the state of juvenile Atlantic salmon populations. General field procedures required for estimating the production rate of salmon in eastern Canadian streams are discussed"--Abstract. Includes abstract in French. gccst Salt water fish gccst Surveys Canada. Department of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division‏. Canada. Department of Fisheries and Oceans. Biological Station (St. Andrews, N.B.) CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 81/76 (CaOODSP)9.869616 PDF 3.70 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-81-76-eng.pdf