Swim bladder stress syndrome in arctic charr (salvelinus alpinus) ...
I investigated the condition known as Swim Bladder Stress Syndrome (SBSS) in a Nauyuk Lake, Northwest Territories strain of Arctic charr (Salvelinus alpinus). Induction of the condition was attempted through an extended period of acute sessions of applied handling stress. Water quality was controlle...
| Main Author: | |
|---|---|
| Format: | Text |
| Language: | English |
| Published: |
University of British Columbia
2010
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.14288/1.0098685 https://doi.library.ubc.ca/10.14288/1.0098685 |
| Summary: | I investigated the condition known as Swim Bladder Stress Syndrome (SBSS) in a Nauyuk Lake, Northwest Territories strain of Arctic charr (Salvelinus alpinus). Induction of the condition was attempted through an extended period of acute sessions of applied handling stress. Water quality was controlled throughout the entire 5 month project. Blood analyses were performed (packed cell volume, plasma Cortisol and glucose) to confirm that the fish had been physiologically stressed. In addition, bacteriology, virology, histopathology and a tissue homogenate injection trial were performed in an attempt to ascertain the exact etiology of this condition. The charr were subjected to two stress treatments (stressed and non-stressed), both treatments occurring at each of two density levels (75 kg/m³ and 150 kg/m³). The incidence of SBSS in the treatment groups was not statistically significant (Log-likelihood ratio; P > 0.05), although seven out of a total of eight (87.5%) cases were fish from high density groups. ... |
|---|