accumulation of posidonia oceanica fibers on the ocean floor. concept marine seagrass, posidonia

accumulation posidonia oceanica fibers ocean floor seagrass marine ecosystem mediterranean sea degradation decomposition sedimentation underwater meadows life biodiversity habitat carbon sequestration coastal protection nutrient cycling services environmental impact debris biodegradation ecological importance seafloor deposition organic matter ecology vegetation conservation organisms beds ecosystems loss restoration pollution oceanic habitats aigenerated