Background As for many other Azorean Islands, the macroalgal flora of Terceira (belonging to the central group of the archipelago) is poorly known, the published information reflecting occasional collections of sporadic visitors to the island. In order to overcome this and contribute to improve the knowledge of Azorean macroalgal flora at both local and regional scales, a thorough investigation was conducted. Both collections and presence data recordings were undertaken at the littoral and sublittoral levels down to approximately 40 m around the island, covering a total area of approximately 49 km2. This paper lists the taxonomic records and provides information on each species’ ecology and occurrence on the Island’s littoral. New information A total of 418 specimens (including taxa identified only to genus level) belonging to 147 taxa of macroalgae, comprising 95 Rhodophyta, 33 Chlorophyta and 19 Ochrophyta (Phaeophyceae) are registered. Of these, 113 were identified to species level (73 Rhodophyta, 24 Chlorophyta and 16 Ochrophyta), encompassing 35 new records for the Island (27 Rhodophyta, 6 Chlorophyta and 2 Ochrophyta). Most species are native, including the Macaronesian endemisms Codium elisabethiae O.C.Schmidt, Millerella tinerfensis (Seoane-Camba) S.M.Boo & J.M.Rico and Phyllophora gelidioides P.Crouan & H.Crouan ex Karsakoff. Eight species are introduced and 15 have uncertain origin.

中文翻译：

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亚速尔群岛特塞拉岛的海洋藻类（海藻）植物群


背景 与许多其他亚速尔群岛一样，特塞拉岛（属于群岛中心群）的大型藻类植物区系鲜为人知，公布的信息反映了岛上零星游客偶尔收集的情况。为了克服这一问题并有助于提高对当地和区域规模的亚速尔大型藻类植物区系的了解，进行了彻底的调查。收集和存在数据记录都是在岛屿周围约 40 m 的沿海和亚沿海高度进行的，覆盖总面积约 49 km2。本文列出了分类学记录，并提供了每个物种的生态和该岛沿岸分布的信息。新信息 共登记了 418 个标本（包括仅在属级鉴定的分类单元），属于 147 个大型藻类分类单元，其中包括 95 种红藻门、33 种绿藻门和 19 种黄藻门（褐藻纲）。其中，已鉴定出 113 种物种（73 种红藻门、24 种绿藻门和 16 种赭藻门），涵盖该岛的 35 种新记录（27 种红藻门、6 种绿藻门和 2 种赭藻门）。大多数物种都是本地物种，包括马卡罗尼西亚特有种 Codium elisabethiae OCSchmidt、Millerellatinerfensis (Seoane-Camba) SMBoo 和 JMRico 以及 Phyllophora gelidioides P.Crouan 和 H.Crouan ex Karsakoff。引进了 8 个物种，其中 15 个物种来源不明。