Scientific name: Squalius alburnoides
Common name: Bordalo
Description: Most of the individuals of this species are hybrids with different diploid (2n = 50), triploid (3n = 75) and tetraploid (4n = 100) ploidies that are not morphologically distinguishable. However, triploid individuals are those that reach larger dimensions (about 13cm) when compared to diploid individuals and tetraploids that rarely exceed 9cm in length. In general, the body of bordalo is narrower in the diploids and tetraploids than in the triploids, the head is pointed and has a barrel-free mouth, in a terminal position. The scales are medium-sized and imbricate. The coloration of the dorsal region is darker when compared to the ventral region. The flanks are silver and have (more than the lateral line) a black band more visible in the terminal part.
Breeding season: between april and june.
Diet: Essentially insectivorous.
Status: VULNERABLE
