In the aspect of microfilms , we isolated four bacteria which can induce the settlement of s . canopus larvae . they are h - 9 ( vibro ) , h - 6 ( vibro ) , h - 15 ( achromobacter ) h - 13 ( achromobacter ) . h - 4 ( vibro ) can inhibit the settlement of larvae 在微生物粘膜方面，本文共筛选出4株单菌菌株对冠瘤海鞘幼体的附着有促进作用，它们分别是：弧菌属的h - 9和h - 6 ，无色杆菌属的h - 15和h - 13 。
