DNA barcoding is a fast and reliable tool for species identification, and has been successfully applied to a wide range of freshwater fishes. The limitations reported were mainly attributed to effects of geographic scale, taxon-sampling, incomplete lineage sorting, or mitochondrial introgression. However, the metrics for the success of assigning unknown samples to species or genera also depend ...

Phragmites australis (ssp australis) is an aggressive colony-forming species that displaces emergent vegetation in North America, including native bulrushes (Schoenoplectus sp.) and both invasive cattails (Typha sp.). expansion can alter habitat negatively affect reptiles, amphibians, birds; less known about Phragmites’ utility as fish its impact on communities freshwater coastal wetlands. To a...

Scanning electron microscopy (SEM) has been widely used to describe interspecific differences in egg quality of teleost freshwater fish, but potential intraspecific are poorly studied. Eggs many rheophilic cyprinids covered with adhesive structures such as attaching villi facilitating attachment at substrates spawning grounds high currents. Recent findings indicate that the cyprinid common nase...

Hydropeaking is widely known for changing the quantity and quality of available habitat downstream hydroelectric facilities, thus affecting all stages fish life cycles. impacts on salmonids are studied, but knowledge its effects cyprinids, which dominant in Mediterranean areas, scarce. In this study, 11 Iberian barbel (Luciobarbus bocagei, Steindachner 1864) were tagged with radio transmitters ...

With the aim of building more compact fishways and adapting them to field conditions improve their location by fish, it is common use turning pools, reducing longitudinal development construction. However, depending on design, pools may affect hydraulic performance fishway consequently fish passage. To study these phenomena, in a vertical slot different configurations submerged notches with bot...