Peer-Review Record
Modeling Long-Term Changes in Atlantic Salmon Abundance in the Ulla River (Galicia—Spain) through Multivariate Time-Series Analysis†
Biol. Life Sci. Forum 2022, 13(1), 111; https://doi.org/10.3390/blsf2022013111
by
Esteban L. Alvarez-Romero 1,*,‡, Marcos Barrio-Anta 2
, Carlos Garcia de Leaniz 3, Pablo Caballero 4 and Paloma Moran 5
, Carlos Garcia de Leaniz 3, Pablo Caballero 4 and Paloma Moran 5Reviewer 1:
Anonymous
Biol. Life Sci. Forum 2022, 13(1), 111; https://doi.org/10.3390/blsf2022013111
Published: 17 June 2022
(This article belongs to the Proceedings of The IX Iberian Congress of Ichthyology)
Round 1
Reviewer 1 Report
A relevant study of the endangered population of salmon obtained for a long period. However, it is not clear what is the methodology that can be used in the studied river can be used in other rivers with similar characteristic. Do the authors mean the use of traps and the recapture of stocked fishes or the multivariate analyses of the time series of fish population?
Author Response
Both questions have an affirmative answer; all the repopulated juveniles are marked by adipose fin ablation and/or microchip, and all returning salmon are controlled in the trap, so it is easy to obtain the percentage of adults that come from natural regeneration and those that come from restocking. Throughout the time series, the number of juveniles released into the river has been different, even in some years none have been released, so that the multivariate analysis of these variables has made it possible to establish which isthe best management system, which can be potentially used in riverswith similar characteristics, especially those located in southern areas of its natural distribution area, affected by dams and with areduced spawning habitat.