Development and application of methods for investigating the ratio of rheoreaction types of fish in a circular tank

Ponomareva, V. Yu.; Павлов, Д. С.; Kostin, V. V.

doi:10.1134/s1995082917010151

Cited by 5 publications

(2 citation statements)

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“…In nonstarving fish (day 0; Table 1), dynamic types of rheoreaction predominate (83.3-96.7%), while the frequencies of their manifestation (PRT and NRT) are approximately equal (p > 0.70, Student's test for fractions). Such a ratio of rheoreaction types is observed in fish with resident behavior using a dynamic method of maintaining location (Ponomareva et al, 2017). This corresponds to the close-to-zero value of the contranatance index.…”

Section: Resultsmentioning

confidence: 76%

Changes in the Ratio of Rheoreaction Types during Fish Starvation

Павлов

Kostin

Parshina

et al. 2021

Biol Bull Russ Acad Sci

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Changes in the motivational component of rheoreaction (the ratio of rheoreaction types) during starvation in some fish species has been analyzed. The presence of fish motivation to migrate (before starvation) is the major pattern of the future changes in the motivational component of rheoreaction resulting from starvation. All fish of the families Cyprinidae and Salmonidae studied with initially behavior as resident individuals show the same type of response to starvation. Their preference for currentwise movement increases on the 2nd–5th days of starvation, then the preference for movement against the current increases on the 7th–12th days, and the ratio of rheoreaction types approaches the initial one. Juveniles of the Black Sea salmon (Salmo trutta labrax) with a motivation to downstream migration, represent a different response to starvation: the downstream movement of individuals monotonically increased from two days after starvation.

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Section: Resultsmentioning

confidence: 76%

Changes in the Ratio of Rheoreaction Types during Fish Starvation

Павлов

Kostin

Parshina

et al. 2021

Biol Bull Russ Acad Sci

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“…The main aim of this work is to study the influence of the flow velocity on the rheopreferendum and the ratio of rheoreaction types. It is known that the current velocity affects the ratio of rheoreaction types of fish (Pavlov et al, 2010;Ponomareva et al, 2017). However, these data were obtained on installations lacking a limnozone, i.e., under conditions of artificial limitations of the fish to leave the current.…”

Section: Introductionmentioning

confidence: 99%

Rheoreaction in Danio rerio (Cyprinidae): Influence of Flow Velocity and Availability of Still Water Zones

2022

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The results of an experimental study of the influence of the flow velocity on the rheoreaction indices of Danio rerio, rheopreferendum and the ratio of the frequencies of various types of rheoreaction, are presented. At a crucial for fish flow velocity of 0.30, their rheopreferendum is positive, while at 0.80, negative. The ratio of rheoreaction types at these velocity levels was typical for resident fish. At a crucial flow velocity of 0.45, the rheopreferendum was not expressed, and the fish behavior was typical for upstream-migrating individuals. A decrease in the accessibility of the limnozone (limitation of the zone’s entrance width) in the circular tank reduces the number of fish returning to it and changes the ratio of their rheoreaction types. At the maximum width of the entrance (19 cm), the ratio of zebrafish rheoreaction types reflects the behavior characteristic of migrating individuals, while for all other variants (10, 3, and 1 cm) it is typical for resident forms. It is shown that the rheopreferendum is a less complete and reliable assessment of rheoreaction than the ratio of rheoreaction types. The applicability of rheoreaction indicators is considered.

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