Mixed Strain
A mixed-strain European seabass is a Dicentrarchus labrax produced from more than one broodstock line, geographic origin, or hatchery family. In aquaculture records the label usually means the fish are not a single named selective-breeding strain, even though they remain the same marine species sold as European seabass, sea bass, or branzino. Normal fish are silver gray with an elongated body and two dorsal fins; unusual albino, leucistic, melanistic, or mottled individuals are rare and are not typical farm stock.
Mixed strains are common in grow-out because they can broaden the genetic base of a batch or combine commercially useful traits such as growth, survival, and handling tolerance. Farms rear them in sea cages, coastal ponds, or recirculating systems, with batch records covering water quality, feeding, and health events. For breeding, restocking, or research, provenance matters: poorly documented mixing can complicate performance comparisons and local genetic stewardship if fish escape or are released.
Colors: Albino, Black, Blue, Brown, Gold, Gray, Green, Leucistic, Melanistic, Mottled, Orange, Piebald, Red, Silver, Spotted, Striped, White, Wild Type, Yellow
