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An Instrument for Quantitative Studies of Phototaxis
Author(s) -
Baylor Edward R.,
Smith Frederick E.
Publication year - 1953
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1930329
Subject(s) - citation , library science , phototaxis , zoology , history , computer science , biology , botany
FIG. 1. A physiological light trap for Cladocera and other animals. A, large test tube piercing float; B, three 1.5 volt flashlight batteries in parallel taped around test tube; C, float with four suspension hooks; D, reflecting surface; E, 2.2 volt pen-light bulb; F, bolting cloth; G, six %-inch rod supports; H, ordinary aluminum funnel; I, J, quarter-inch metal rings; K, cylinder of %-inch mesh screen as a fish guard hung on hooks.