Does substrate matter in the deep sea? A comparison of bone, wood, and carbonate rock colonizers.

ABSTRACT: Continental margins host methane seeps, animal falls and wood falls, with chemosynthetic communities that may share or exchange species. The goal of this study was to examine the existence and nature of linkages among chemosynthesis-based ecosystems by deploying organic fall mimics (bone and wood) alongside defaunated carbonate rocks within high and lesser levels of seepage activity for 7.4 years. We compared community composition, density, and trophic structure of invertebrates on these hard substrates at active methane seepage and transition (less seepage) sites at Mound 12 at ~1,000 m depth, a methane seep off the Pacific coast of Costa Rica. At transition sites, the community composition on wood and bone was characteristic of natural wood- and whale-fall community composition, which re

SUBMITTER: Pereira OS 

PROVIDER: S-EPMC9299329 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature