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Channel Catfish with a Rayed Adipose Fin
Author(s) -
Tave Douglas,
Ramsey John S.,
Grizzle John M.
Publication year - 1990
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1990)002<0071:ccwara>2.3.co;2
Subject(s) - ictalurus , adipose tissue , catfish , biology , clearance , fish fin , fin , anatomy , population , fishery , fish <actinopterygii> , endocrinology , medicine , materials science , environmental health , composite material , urology
Abstract Two channel catfish Ictalurus punctatus with rayed adipose fins were found in an aquaculture population. One specimen was radiographed and then cleared enzymatically and stained to demonstrate cartilaginous and calcified portions of the adipose and anal fins. The adipose fin, which had 33 rays (lepidotrichia) and was supported by pterygiophores, was morphologically similar to the anal fin. The cause of the abnormal adipose fin was not determined.