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RAS BiologyВопросы ихтиологии Journal of Ichthyology

  • ISSN (Print) 0042-8752
  • ISSN (Online) 3034-5146

INFLUENCE OF TEMPERATURE ON SPONTANEOUS LOCOMOTOR ACTIVITY OF THE SADDLER BICHIR (POLYPTERIDAE)

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PII
S3034514625050081-1
DOI
10.7868/S3034514625050081
Publication type
Article
Status
Published
Authors
A.O. Kasumyan
  • Affiliation: Lomonosov Moscow State University
V.V. Zdanovic
  • Affiliation: Lomonosov Moscow State University
V.V. Sataeva
  • Affiliation: Lomonosov Moscow State University
Volume/ Edition
Volume 65 / Issue number 5
Pages
618-624
Abstract
Using the open field method, the spontaneous locomotor activity of the saddler bichir has been estimated at different water temperatures (20, 25, 30, and 34°C). The locomotor activity of the fish increases by 1.40 times in the temperature range of 20–25°C (temperature coefficient 2.1); more strongly (2.00 times) it increases in the temperature range of 25–30°C (4.1), while in the range of 30–34°C (1.1) it changes insignificantly (1.04 times). With an increase in temperature, the swimming speed and the distance covered by the fish in one hour increase; subsequently, the time spent on crossing the test line decreases. The coefficient of variation of the locomotor activity indices decreases with an increase in temperature. Comparison with the previously studied Senegal bichir revealed both similarities and differences in the locomotor activity of these two sympatric species.
Keywords
многопёр Эндлихера температура воды двигательная активность скорость плавания
Date of publication
24.02.2026
Year of publication
2026
Number of purchasers
0
Views
3

References

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