ABSTRACT

The distribution of Maretia planulata with respect to Metalia dicrana, sediment size, organic content of sediment and water depth were analyzed in Apra Harbor, Guam. Potential interactions between Maretia planulata and other macrofauna, aspects of the potential association and the role they play in the community were assessed. Secondarily, this study quantified growth rates for Maretia planulata along a sediment gradient. Sediment size and distribution were found to be a potential factor in the distribution and growth of Maretia planulata. Sediment analysis was conducted to determine if any differences in organic content existed among the different sediment types or microhabitats within the study site. The possible association between Maretia planulata, Metalia dicrana and sediment cones formed by an inf aunal worm was also investigated.