Breder, Charles M. (Charles Marcus), 1897-2005-10-062005-10-061929http://hdl.handle.net/2246/40435 p. : ill. ; 23 cm.Includes bibliographical references."1. Jenkinsia will not normally approach a dark, solid object closer than a certain distance, which is probably equal to its limit of visibility. 2. Schools of Jenkinsia, with their vacuities over and around solid objects, are interpreted in the mechanical terms of a positive mutual attraction of the fish for each other and a common negative reaction toward any other, generally dark, body. 3. It is possible that these effects might be reduced to different aspects of the same reaction. 4. Further study should throw light on the reactions of some pelagic fishes to larger objects in motion as well as the apparently 'intelligent' rounding up by larger fishes of schools, reducing them to purely mechanical performances which would be, nevertheless, useful"--P. 5.517954 bytesapplication/pdfen-USQL1 .A436 no.382, 1929Jenkinsia -- SchoolingJenkinsia -- Behavior.Clupeidae -- Schooling.Clupeidae -- Behavior.Fishes -- Schooling.Fishes -- Behavior.text