<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This study aim is to assess how the water shortage impacted on the growth of two endemic freshwater fish species, the Italian riffle dace <italic>Telestes muticellus</italic> (Bonaparte, 1837) and <italic>Phoxinus</italic> spp. complex, in a pre-alpine area in North-West Italy. Both species’ specimens growth depended on the streamflow rate: in particular low water levels weighted on <italic>Phoxinus</italic> spp. specimens, since they showed a negative growth pattern during dry months, while the <italic>Telestes muticellus</italic> ones continually had a positive growth pattern in the same time frame. The streamflow rate plays a key role in fish growth during severe drought in this area but mechanisms that allow <italic>Telestes muticellus</italic> specimens to outcompete <italic>Phoxinus</italic> spp. ones throughout water shortage periods are still unknown.</p>
</abstract>

This study aim is to assess how the water shortage impacted on the growth of two endemic freshwater fish species, the Italian riffle dace Telestes muticellus (Bonaparte, 1837) and Phoxinus spp. complex, in a pre-alpine area in North-West Italy. Both species’ specimens growth depended on the streamflow rate: in particular low water levels weighted on Phoxinus spp. specimens, since they showed a negative growth pattern during dry months, while the Telestes muticellus ones continually had a positive growth pattern in the same time frame. The streamflow rate plays a key role in fish growth during severe drought in this area but mechanisms that allow Telestes muticellus specimens to outcompete Phoxinus spp. ones throughout water shortage periods are still unknown.

Differences in Growth Pattern in Two Freshwater Fish Species (Leuciscidae) During Summer Drought in North-West Italy

Transylvanian Review of Systematical and Ecological Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This study aim is to assess how the water shortage impacted on the growth of two endemic freshwater fish species, the Italian riffle dace Telestes muticellus...

Differences in Growth Pattern in Two Freshwater Fish Species (Leuciscidae) During Summer Drought in North-West Italy

Published Online: Jul 16, 2023

Page range: 55 - 64

DOI: https://doi.org/10.2478/trser-2023-0004

Keywords
drought, Relative Condition Factor, spp

© 2023 Gianmarco Virga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Differences in Growth Pattern in Two Freshwater Fish Species (Leuciscidae) During Summer Drought in North-West Italy

Published Online: Jul 16, 2023

Page range: 55 - 64

DOI: https://doi.org/10.2478/trser-2023-0004

Keywordsdrought, Relative Condition Factor, spp

© 2023 Gianmarco Virga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
drought, Relative Condition Factor, spp