{"refrec":{"BRefID":11518,"RR":"<b>Heuts, M.J.</b> (1947). Laterale bepantsering en groei bij <i>Gasterosteus aculeatus</i>. II. <i>Natuurwet. Tijdschr. 29</i>: 193-196","BEntID":11518,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Natuurwet. Tijdschr. 29</i>: 193-196","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Heuts, M.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Heuts, M.J.","Englishabstract":"A positive correlation between number of lateral shields and total length is shown to exist in Gasterosteus aculeatus L. populations (gymnura-form), consisting of fishes of exactly the same age. These populations were reared in the laboratory from artificially fertilized eggs. The same correlation, found in natural populations, is thus caused by faster growth rates in more plated individuals. This possibility was considered previously . 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