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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v37.i2.50
6 pages

Preferential Behavior of Pontoporeia affinis Lindstrom (Crustacea, Amphipoda)

B. Z. Kaufman
Institute of Biology Russian Academy of Sciences Petrozavodsk, Russia

ABSTRACT

Photo-, thermo-, halo-, and pH-preferendums of Pontoporeia affinis as a representative of freshwater organisms were studied. The individuals demonstrated a distinct daily rhythm of photopreferendum, as well as stable values of thermo-, halo-, and pH-preferendums during the day. The causes and evolutionary significance of these responses are discussed.


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