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Kenneth S. Norris Rancho Marino Reserve

13 Jul, 11 PM - 14 Jul, 02 AM

Mycosporine-like amino acids (MAAs), a natural sunscreen produced by red algae, are sequestered by Strongylocentrotus purpuratus sea urchins into their gonads to protect their planktonic larvae from harmful ultraviolet radiation. The concentration of MAAs in the gonads is correlated with the concentration of MAAs in their red algae diet. Algal consumption likely depends on both drift and attached algal availability, but may also be affected by other factors, such as microhabitat. Microhabitats studied will be unpitted vs. pitted and submerged vs. unsubmerged at low tide. Urchin gonads will be analyzed for MAA content using HPLC. Local algae will also be tested to determine the MAA availability to the urchins.

Visit #10560 @Kenneth S. Norris Rancho Marino Reserve

Approved

Under Project # 7045 | Research

Microhabitat effects on MAA concentration in Strongylocentrotus purpuratus gonads

research_scientist - Oregon State University

Reservation Members(s)

Sarah Gravem Jul 13 - 14, 2006 (2 days)

Sarah Gravem Jul 13 - 14, 2006 (2 days)

Sarah Gravem Jul 13 - 14, 2006 (2 days)

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Day Use Only 3 Jul 13 - 14, 2006

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