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William Edwin Ricker, (August 11, 1908 – September 8, 2001) is an important founder of
fisheries science Fisheries science is the academic discipline of managing and understanding fisheries. It is a multidisciplinary science, which draws on the disciplines of limnology, oceanography, freshwater biology, marine biology, meteorology, conservation, eco ...
. He is best known for the
Ricker model The Ricker model, named after Bill Ricker, is a classic discrete population model which gives the expected number ''N'' ''t''+1 (or density) of individuals in generation ''t'' + 1 as a function of the number of individuals in the pre ...
, which he developed in his studies of
stock In finance, stock (also capital stock) consists of all the shares by which ownership of a corporation or company is divided.Longman Business English Dictionary: "stock - ''especially AmE'' one of the shares into which ownership of a company ...
and recruitment in
fisheries Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life; or more commonly, the site where such enterprise takes place ( a.k.a. fishing ground). Commercial fisheries include wild fisheries and fish farms, both ...
. The model can be used to predict the number of fish that will be present in a fishery. He also had an international standing as an
entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arach ...
and a scientific editor. He published 296 papers and books, 238 translations, and 148 scientific or literary manuscripts.Beamish et al. His 1958 publication, "Handbook of computation for biological statistics of fish populations" and later updates were the standard books on the subject for decades.


Achievements

Born in
Waterdown, Ontario Waterdown is a village in Canada which since 2001 has been a community of Hamilton, Ontario. Waterdown is approximately 60 km west of downtown Toronto. On January 1, 2001 the new city of Hamilton was formed from the amalgamation of six mun ...
; Ricker was an authority in the taxonomy of
stoneflies Plecoptera is an order of insects, commonly known as stoneflies. Some 3,500 species are described worldwide, with new species still being discovered. Stoneflies are found worldwide, except Antarctica. Stoneflies are believed to be one of the mo ...
, and evolved an elegant classification which his fellow entomologists praised as "a thing of beauty and simplicity that made evolutionary sense". In fisheries, he researched issues centred on Canadian fisheries and how to manage them. He is known particularly for his 1954 paper on recruitment and stock. He is also known for his ''Handbook of Computation for Biological Statistics of Fish Populations'', published in 1958. This 348-page handbook became the standard reference for students and professionals around the world. It is still used in China as the standard text for fisheries science. In 1950 Ricker became editor of th
''Journal of the Fisheries Research Board''
and during his twelve-year tenure developed this into perhaps the most influential fisheries science journal in the world. In his 1969 paper, ''Food from the sea'', he reasoned that the quantity of food that could be harvested from the sea would be 150–160 million tonnes or 2.5 times the level in 1968. He demonstrated that an estimate of 100 million tonnes was too low and an estimate of 200 million tonnes was too high. Ricker taught himself Russian so he could read the original papers of Feodor Baranov, a Russian fisheries scientist. In 1973 he published a 428-page Russian–English dictionary on terminology in hydrobiological science for students of fisheries and aquatic biology (Ricker 1973). This dictionary remains the only specialized text on fisheries terminology.Ricker (1973)


Honours

His medals and awards include: in 1970 the
Flavelle Medal The Flavelle Medal is an award of the Royal Society of Canada "for an outstanding contribution to biological science during the preceding ten years or for significant additions to a previous outstanding contribution to biological science". It is n ...
, in 1966 the Professional Institute of the Public Service of Canada Gold Medal, and in 1983 the F.E.J. Fry Medal. In 1969, he received the first Award of Excellence of the American Fisheries Society. On his death in 2001, the Society established the William E. Ricker Resource Conservation Award. The University of Manitoba, Dalhousie University, and the University of Guelph, awarded him honorary doctoral degrees, and in 1986 he was appointed to the
Order of Canada The Order of Canada (french: Ordre du Canada; abbreviated as OC) is a Canadian state order and the second-highest honour for merit in the system of orders, decorations, and medals of Canada, after the Order of Merit. To coincide with the ...
. The
Canadian Coast Guard The Canadian Coast Guard (CCG; french: links=no, Garde côtière canadienne, GCC) is the coast guard of Canada. Formed in 1962, the coast guard is tasked with marine search and rescue (SAR), communication, navigation, and transportation issues in ...
fisheries
research vessel A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated ...
CCGS ''W.E. Ricker'' is named after him.


Notes


Other references

* Beamish, R J; Noakes, D J; Noakes D L G and Beamish, F W H (2003
William Edwin Ricker, OC, FRSC, LLD, DSc
* de Vries, Gerda; Hillen, Thomas; Lewis, Mark; Schonfisch, Birgitt and Muller, Johannes (2006) ''A Course in Mathematical Biology: '
''The Ricker model''
SIAM. pp 212–219. * Marland, Eri

* Noakes, David L. G. (Ed.) (2006
''Bill Ricker: an appreciation''
シュプリンガー・ジャパン株式会社, . * ''A Passion for Science: Bill Ricker — A Scientific Journey'' VHS Videotape, Canada, IM, 1994. * Ricker, W. E. (1954
Stock and Recruitment
''Journal of the Fisheries Research Board of Canada'', 11(5): 559–623. * Ricker, W E (1958) ''Handbook of computation for biological statistics of fish populations''. Bulletin 119 of the Fisheries Resource Board, Canada, Ottawa. * Ricker, W E (1969) ''Food from the sea. In Resources and man, a study and recommendation report of the Committee on Resources and Man'', US National Academy of Sciences, Chap 5. W H Freeman, San Francisco, pp. 87–108. * Ricker, W E (1973) ''Russian–English dictionary for students of fisheries and aquatic biology''. Bulletin 183 of the Fisheries Resource Board, Canada, Ottawa.


External links


William E. Ricker, 1908-2001
''Fisheries Centre Newsletter'', 7(5): 1–2. {{DEFAULTSORT:Ricker, Bill 1908 births 2001 deaths Canadian entomologists Fellows of the Royal Society of Canada Fisheries scientists Officers of the Order of Canada People from Hamilton, Ontario Scientists from Ontario 20th-century Canadian zoologists