Effects of Physical Parameters on Fish Migration between a Reservoir and its Tributaries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F22%3A00558308" target="_blank" >RIV/67985807:_____/22:00558308 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12520/22:43904993 RIV/60460709:41210/22:91863

Result on the web

<a href="http://dx.doi.org/10.1038/s41598-022-12231-3" target="_blank" >http://dx.doi.org/10.1038/s41598-022-12231-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-022-12231-3" target="_blank" >10.1038/s41598-022-12231-3</a>

Result language

angličtina

Original language name

Effects of Physical Parameters on Fish Migration between a Reservoir and its Tributaries

Original language description

Reservoirs interrupt natural riverine continuity, reduce the overall diversity of the environment, and enhance the spread of non-native fish species through suitable environments. Under favourable conditions, invasive species migrate to tributaries to benefit from local resource supplies. However, the changes in physical conditions in reservoirs that motivate fish species to migrate remain poorly understood. We analysed migration between a reservoir and its tributary in three non-native (asp Leuciscus aspius, ide Leuciscus idus, and bream Abramis brama) and two native (chub Squalius cephalus and pike Esox lucius) species equipped with radio tags. This 5-year study revealed that an increasing day length was the most general predictor of migration into the tributary in all observed species except E. lucius. Only L. aspius responded to the substantially increasing water level in the reservoir, while the migration of L. idus and S. cephalus was attenuated. Abramis brama and S. cephalus occurred more frequently in tributaries with an increase in temperature in the reservoir and vice versa, but if the difference in temperature between the reservoir and its tributary was small, then A. brama did not migrate. Our results showed that migration from the reservoir mainly followed the alterations of daylight, while responses to other parameters were species specific. The interindividual heterogeneity within the species was significant and was not caused by differences in length or sex. Our results contribute to the knowledge of how reservoirs can affect the spread of non-native species that adapt to rapid human-induced environmental changes.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10103 - Statistics and probability

Project

<a href="/en/project/EF16_019%2F0000845" target="_blank" >EF16_019/0000845: Centre for investigation of synthesis and transformation of nutritional substances in the food chain in interaction with potentially harmful substances of athropogenic origin: assessment of contamination risks for the quality of production</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Volume of the periodical

12

Issue of the periodical within the volume

May 2022

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

8612

UT code for WoS article

000799388600047

EID of the result in the Scopus database

2-s2.0-85130457068