New paper published in JEMBE: Light indirectly mediates bivalve habitat modification and impacts on seagrass
A new paper with collaborators at the University of Southern Denmark (Marianne Holmer, Harald Hasler-Sheetal, and Ronnie Glud) has been published in the Journal of Experimental Marine Biology and Ecology. We undertook experiments to test whether light mediates the impacts of blue mussels on eelgrass in Danish estuaries. We describe how light availability indirectly mediates blue mussel habitat modification by altering plant metabolism, and how these biogeochemical changes feed back to influence eelgrass vulnerability to sulfide stress but not eelgrass performance. Our results suggest that while bivalve effects on seagrasses may be variable (i.e., facilitative, inhibitive, or neutral) in oligotrophic ecosystems, they have the potential to be negative in eutrophic estuaries, which are becoming more prevalent globally. A PDF is available here.
Photo credit: M. Holmer