Nonsurgical videolaparoscopy for determination of reproductive status of the Arctic charr.

摘要: The efficient commercial production of Arctic charr is hampered by the limited and subtle sexual dimorphism shown this species. This project examined feasibility low-cost videoendoscopy through genital pore to determine sex, stage maturity, safety for 80, randomly selected, anesthetized charr. sensitivity specificity correct assignment male sex were 90% 100%, respectively, among 3 observers in a single-blind design. Sensitivity relative maturity same fish 96% 54%, respectively. observed mortality rate 7% at end weeks was confounded presence unrelated disease. We conclude that technique holds promise application producers improve efficiency.