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Locomotor response of goldfish, channel catfish, and largemouth bass to a ‘copper‐polluted’ mass of water in an open field
Author(s) -
Timms A. M.,
Kleerekoper H.,
Matis J.
Publication year - 1972
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr008i006p01574
Subject(s) - catfish , bass (fish) , copper , carassius auratus , fishery , chemistry , environmental science , environmental chemistry , fish <actinopterygii> , biology , organic chemistry
The locomotor response of goldfish, largemouth bass, and channel catfish to ‘copper‐polluted’ water at a maximum concentration of 50 μg/l Cu ++ in an open field, free choice situation was monitored. The rate of water flow was 1.8 cm/sec. The largemouth bass were unaffected, but the goldfish and the channel catfish tended to orient themselves toward the source of the ion. The degree of this orientation was less, however, than that found in shallower gradients of the same copper concentration as described by Kleerekoper et al. in 1972. When goldfish were exposed to the copper ion in a uniform field so that neither avoidance of nor attraction to the polluted mass was possible, no change in orientation was observed. It is concluded that the slope of the copper gradient between ‘clean’ and ‘polluted’ water rather than the eventual highest concentration of the ion (50 μg/1) affected the orientation and the locomotor behavior of the catfish and the goldfish.