卯澳灣之大型海藻研究

Marine Macroalgae in Mao-ao Bay, Taiwan

黃淑芳(Su-Fang Huang)

《國立臺灣博物館學刊》 61卷4期 (2008/12) Pp. 1-31

摘要

本文為2007至2008年間在臺灣東北部卯澳灣海域進行海藻的採集及調查研究之結果。共鑑定有的科、75屬、113種海藻，包括綠藻28種，褐藻16種，紅藻67種， 藍藻2種。其中，有的種海藻是卯澳灣的首次記錄。這些海藻的種類、棲息生態及季節消長均以編目錄方式詳述於內。本研究發現， 卯澳灣全年可見並形成優勢的海藻有31種，是此區代表性藻類。在垂直分佈上， 冬天飛沫帶以紫菜為優勢種，春天時潮間帶上部以礁膜、石蓴及石髮為優勢種， 潮間帶中下部以囊藻、團扇藻、小杉藻及異色角叉菜為主，低潮線以石花菜、翼枝菜、小珊瑚藻及指枝藻的數量最多，亞潮帶則以日本沙菜、鋸齒麒麟菜、球松藻、寬珊藻、海木耳、繁枝鋸齒藻及馬尾藻為代表。本研究發現此地區熱帶性海藻的種類有增加趨勢。

關鍵字

海藻 ； 植物地理 ； 卯澳灣 ； 臺灣 ； 消長

並列摘要

In the present study, the marine algae collected from Mao-ao bay in northeastern Taiwan were identified and listed. A total of 113 species of seaweed, including 2 species of Cyanophyta 28 of Chlorophyta, 16 of Heterokontophyta, and 67 of Rhodophyta are reported here. Among them, 45 species are of new record to Mao-ao bay. The algal community was characterized by dominance of 31 species. In winter, Bangia atropurpurea and Porphyra spp. were the dominant species on the supralittoral fringe. In spring, Enteromorpha compressa and UIva lactuca were the dominant species on the upper littoral zone; Colpomenia sinuosa, Padina spp., Chondracanthus intermedius and Chondrus verrucosa were the dominant species on the middle and lower littoral zone; Gelidium amansii, Pterocladiella capillacea, Corallina pilulifera and Marginisporum aberrans were frequently found on the infralittoral fringe; Hypnea japonica, Eucheuma serra, Codium mamillosum, Mastophora rosea, Sarcodia montagneana, Prionitis ramossissima and Sargassum cristaefolium, were the dominant species on the sublittoral zone. The ecological significance of increase in abundance and species number of tropical species' in this area were discussed.

並列關鍵字

marine algae ； phytogeography ； Mao-ao bay ； Taiwan ； succession