Presentation Title: The effects of artificial ocean acidification on the behaviour and physical characteristics of the Chilean mussel species, Perumytilus purpuratus
Section: Poster Session Group 2 2
Location: McCardell Bicentennial Hall, Great Hall
Date & Time: Friday, April 19, 2013 - 2:45pm - 3:30pm
The oceans of the world currently absorb 30-50% of the CO2 produced by human activity, resulting in a gradual decrease in ocean acidity over time. As acidity decreases and the concentration of shell building materials decreases, marine calcifying organisms like mussels and crabs may have greater difficulty creating calcified structures. Although many organisms can maintain a high level of calcification in acidified conditions, a more holistic look at certain species has revealed unexpected physical and behavioral signs of stress. In this study, a Chilean mussel species, Perumytilus purpuratus, was held at increased concentrations of CO2 in the laboratory over a three-month period and the animals were measured experimentally for reduced calcification rates and stress in both physical and behavioral characteristics. It appears that this species was unaffected by increased levels of CO2 over the course of the experiment, although longer-term studies may reveal more subtle effects on this species.
Type of Presentation: Individual poster
Presentation Area: Biology
Number of presenters:
Presenter(s): Lloyd, Maria Elena
Class Year(s): 2013
Sponsor(s): Sheldon, Sallie P.