ZINC AVOIDANCE BY FATHEAD MINNOWS (PIMEPHALES-PROMELAS) - COMPUTERIZED TRACKING AND GREATER ECOLOGICAL RELEVANCE
ZINC AVOIDANCE BY FATHEAD MINNOWS (PIMEPHALES-PROMELAS) - COMPUTERIZED TRACKING AND GREATER ECOLOGICAL RELEVANCE
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DOI:
10.1139/f89-066
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发表时间:
1989-03-01
影响因子:
2.4
通讯作者:
SPRAGUE, JB
中科院分区:
文献类型:
--
作者:
KORVER, RM;SPRAGUE, JB
Male fathead minnows (Pimephales promelas) avoided 0.284 mg .cntdot. L-1 of zinc when given a choice of clean and dosed sides of a featurelss openfield tank, as frequently used in avoidance/preference experiments. More than six times as much zinc (1.83 mg .cntdot. L-1) was required to cause avoidance when males were allowed to establish a territory under a shelter on the side of the experimental chamber which was later dosed. Activity increased during zinc dosing when a shelter was present but did not change in no-shelter tests. Control period activity was positively related to strength of avoidance response. By incorporating relevant motivational factors, behaviour observed in avoidance experiments should be more predictive to nature. A new computerized tracking system automatically recorded movements of the fish, calculated various measures of locomotor response and filed results in preparation for statistical analysis.