Dose/dose-rate responses of shrimp larvae to UV-B radiation

✍ Scribed by David M. Damkaer; Douglas B. Dey; Gayle A. Heron

• Book ID: 104733396
• Publisher: Springer-Verlag
• Year: 1981
• Tongue: English
• Weight: 478 KB
• Volume: 48
• Category: Article
• ISSN: 0029-8549
• DOI: 10.1007/bf00347960

✦ Synopsis

Previous work indicated dose-rate thresholds in the effects of UV-B on the near-surface larvae of three shrimp species. Additional observations suggest that the total dose response varies with dose-rate. Below 0.002 Wm irradiance no significant effect is noted in activity, development, or survival. Beyond that dose-rate threshold, shrimp larvae are significantly affected if the total dose exceeds about 85 Jm. Predictions cannot be made without both the dose-rate and the dose.These dose/dose-rate thresholds are compared to four-year mean dose/dose-rate solar UV-B irradiances at the experimental site, measured at the surface and calculated for 1 m depth. The probability that the shrimp larvae would receive lethal irradiance is low for the first half of the season of surface occurrence, even with a 44% increase in damaging UV radiation.