| Autor: |
Bellgraph, BrianJ., Brown, RichardS., Stephenson, JohnR., Welch, AbigailE., Deters, KatherineA., Carlson, ThomasJ. |
| Zdroj: |
Transactions of the American Fisheries Society; November 2008, Vol. 137 Issue: 6 p1791-1794, 4p |
| Abstrakt: |
AbstractSwim bladders of juvenile rainbow trout Oncorhynchus mykisswere ruptured and subsequently observed for 28 d to identify healing patterns of swim bladder wounds and the effect of swim bladder rupture on direct mortality. Healing began within 7 d, wounds were completely closed after 14 d, and no mortality occurred. The healing process followed a pattern in which tissue first thickened around the opening (7-14 d), scarring of the ruptured area occurred, and evidence of the wound ultimately disappeared (21-28 d). The healing observed in juvenile rainbow trout suggests that swim bladder rupture does not result in direct mortality as was hypothesized; however, the indirect effects of swim bladder injury (e.g., a decreased ability to swim efficiently) may lead to mortality by predation or other natural phenomena that were not observable in this study. |
| Databáze: |
Supplemental Index |
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