00000nam 2200000zi 4500 9.879658 CaOODSP 20221107165555 m o d f cr |n||||||||| 190924s1979 nscdb #ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- Fs70-8/79-31E-PDF Maguire, Jean-Jacques, 1953- author. An outline of a method to back calculate the mackerel spawning stock from egg abundance estimates / Jean-Jacques Maguire. [Dartmouth, Nova Scotia?] : [Marine Fish Division?], [1979] 1 online resource (24 pages) : charts, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 79/31 "Not to be cited without permission of author" Includes bibliographical references (pages 14-15). "The idea that egg production can be used to calculate the abundance of adult fish required to produce those eggs appears to have been first expressed by Hensen and Apstein (1897). Several decades later the potential value of fish's planktonic eggs studies was widely recognized and Beverton and Holt (1956) stated that it was probably one of the best methods to study the abundance of the adult population"--Introduction. Mackerel gccst Fisheries Canada. Department of Fisheries and Oceans. Canada. Dept. of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 79/31 (CaOODSP)9.869616 PDF 1.05 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-79-31-eng.pdf