In addition, ca. 10% of fish were branded with individual markers attached under the dorsal fin, which enables more precise information to be obtained on their migration, growth speed, sexual maturity, and so on.
Lisaks sellele on ca 10% kaladest varustatud seljauime alla kinnitatud individuaalmärgisega, mis võimaldab saada täpsemat teavet nende rännete, kasvukiiruse, suguküpsuse saabumise jms kohta.