Variation over Time of Length–Weight Relationships and Condition Factors for Four Exotic Fish Species from a Restored Shallow Lake in NE Iberian Peninsula

Fishes

Amadeo Arbonés¹  Frederic Casals¹  Jorge Rubén Sánchez-González¹ 

[1] Department of Animal Science-Wildlife Section, University of Lleida, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain;

关键词: alien invasive species;    long-term monitoring;    lwr;    condition factor;    mediterranean;   

DOI  :  10.3390/fishes5010007

来源: DOAJ

【 摘 要 】

Length−weight relationships (LWRs), condition factors, and their variation over time were analyzed for four exotic freshwater fish (bleak, common carp, pikeperch, and roach) in the Estany d’Ivars i Vila-sana shallow lake in Catalonia, Northern Spain. Fish samples were collected twice a year (early summer and autumn), between 2008 and 2016, by using between three and five multi-mesh nylon gillnets. This study provides novel information about four common exotic fishes outside of their natural range and within the context of a restored shallow lake, where the ichthyologic community is evolving in concordance with the ecosystem conditions and the fish community dynamics.

【 授权许可】

Unknown