Life-cycle responses of a Mediterranean non-migratory cyprinid species, the Northern Iberian chub (Squalius carolitertii Doadrio, 1988), to streamflow regulation

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Alexandre, CM (Author) Other; Ferreira, MT (Author) Other; Pedro Almeida (Author) FDUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: ECOHYDROLOGY

Vol. 11

ISSN: 1936-0584

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

Other information

Authenticus ID: P-00P-Q8R

DOI: 10.1002/eco.1998

Abstract (EN): Streamflow is considered a driver of interspecific and intraspecific life-history differences among freshwater fish. Therefore, dams and related flow regulation can have deleterious impacts on their life cycles. The main objective of this study was to assess existing differences in the growth and reproduction patterns of a non-migratory fish species (the Northern Iberian chub, Squalius carolitertii, Doadrio, 1988), between nonregulated and regulated watercourses. For 1 year, samples were collected from two populations of Iberian chub, inhabiting rivers with nonregulated and regulated flow regimes. Flow regulation for water storage promoted changes in chub's condition, duration of spawning, fecundity, and oocyte size. However, this non-migratory species was less responsive to streamflow regulation than other native potamodromous species. Findings from this study are important to understand changes imposed by regulated rivers and can be used to support the implementation of suitable river management practices.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14