vagrant benthos的用法和样例：
例句
- Coastal zones are important habitats to fauna, having a primary production for offering such as benthos and sessile organisms.
摘要沿岸海域一直是生物重要的栖地，并且提供像底栖生物或附著生物相当高的基础生产。 - The origin of the Middle Permian Chihsia Formation from South China remains a puzzle for long, with its evident oxygen-deficient features associated with diverse benthos.
华南地区中二叠世栖霞组有机质丰富，出现多方面缺氧沉积特征，同时多门类底栖生物繁盛，其成因一直令人困惑。
