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INHS Bulletin vol. 17:8PDF

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Title:The "Knothead" Carp of the Illinois River
Author(s):Thompson, D.H.
Subject(s):rickets
knothead carp
Carp
Illinois River
Abstract:The knothead malformation of carp described here is believed to be the first known instance of rickets among fishes. Its resemblance to rickets in man and other higher vertebrates is as close as can be expected in view of the anatomical difference between fish and mammal. Carp may be affected by it from the fingerling stage through life. Their sluggishness of habit and their retarded growth are further indications of a rachitic condition. These rachitic carp are recognized by the bulging of the opercles, which is often so extreme that respiration is seriously embarrassed.
Issue Date:1928-10
Publisher:Champaign : Illinois Natural History Survey
Series/Report:Illinois Natural History Survey Bulletin; v. 017, no. 08
Genre:Article
Type:Text
Language:English
URI:http://hdl.handle.net/2142/45915
ISSN:0073-4918
Publication Status:published or submitted for publication
Peer Reviewed:is peer reviewed
Rights Information:Copyright 2009 University of Illinois Board of Trustees. All rights reserved.
Date Available in IDEALS:2013-11-02


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