罗源清大官坂垦区附近海区附着生物生态研究

Studies on the Ecology of Biofouling in the Neighbouring Water of the Enclosed Water for Cultivation in Louyan Bay

于 E119°42′,N26°18′,对附着生物周年挂板试验结果,发现动物 70种,藻类 12种,均为广盐的或稍高盐性的近岸内湾暖水种,网纹藤壶,糊斑藤壶,总合草苔虫,乳突皮海鞘,褶瘤海鞘,中胚花筒螅和肠许苔是优势种。5～10月是多数动物的附着期和附着盛期,6～9月是生物量的高峰期。夏、秋两季的种类和附着量显著较大。乳突皮海鞘生态适应强,附着期长,数量大,应重视防除。

From Dec. 1986 to Nov.1987, test panels were set at the neighbouring water of the en-closed water for cultivation in Louyan Bay. During the investigation 70 Species of animals and 12 algae have been recorded. The main pericd of settlement was form May to Oct.. Balanus reticulatus B. cirrutus, Bugula neritina, Molgula manhallensis, Styella plicata, Tubularia mesembryanthemum and Entorompha intestinaliswere domincd species at different time. Fig.l show the seasons of attachment of main species. The quantity and its component of biofouling is presented in Tab,1-2. The monthly wet weight of biofouling on the bottom panels in June-Sep. were remarkably qreater than in other. The attaching biomass and the cover area of seasonal panel in spring, summer and autumn were far more greater than in winter. This paper reports in the first place that a great quantity of Molgula manhauensis was found in a bay of Southe China.