Sensitivity of larval and juvenile fish with different swim bladder morphology to barotrauma with a special focus on Cypriniformes.

ABSTRACT: Barotrauma, caused by rapid pressure changes, poses a major risk to fish migrating downstream through hydropower turbines. This study investigated the sensitivity of larval and juvenile fish to barotrauma with different swim bladder morphology to barotrauma using a custom-built chamber. Four different representative species, namely the two cypriniform species common nase (Chondrostoma nasus) and roach (Rutilus rutilus), both physostomous species with a two-chambered swim bladder, European grayling (Thymallus thymallus) as physostomous species with a single-chambered swim bladder and European perch (Perca fluviatilis) as physoclistous species with a single chambered swim bladder were investigated. Fish were acclimated to 0- or 15-meters depth (101 and 251 kPa, respectively) and exposed to r

SUBMITTER: Zitek A 

PROVIDER: S-EPMC12824194 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature