Abstract
Lytechinus variegatus larvae were used to examine the effects of ecologically relevant short-term exposures of ultraviolet radiation (UVR) on larval morphology and settlement. A laboratory experiment tested the blastula, gastrula, and early pluteus stages of larval development for susceptibility to damage from exposure to UVR produced by an artificial light source. Larval post-oral arm length and percent settlement were measured to assess UVR effects. Larvae exposed at the blastula and gastrula stages had a reduction in larval post-oral arm length compared with non-exposure controls, while larvae exposed at the early pluteus stage were similar to controls. Larvae exposed in the gastrula stage had a significant reduction in percent settlement compared with controls. Negative consequences from ecologically relevant levels of UVR were differentially dependent on the larval stage at time of exposure suggesting time point in larval development at exposure will be important in interpreting effects on higher levels of biological organization.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
