Rhizoclonium riparium is a cryptogenic macroalga that freely inhabits fresh, sea and brackish waters and is able to compete in a variety of habitats. In the summers of 2018 and 2019, this alga was found to form huge filamentous mats, covering all rocks, down to a depth of 3 m in a harbour in Reyðarfjörður, east Iceland. The species taxonomy was confirmed by molecular data. Here, we report the invasive behaviour of this species in Reyðarfjörður, which may represent a pool source for R. riparium dispersal, as hull fouling is the most likely vector for the spread of this species.

中文翻译：

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根瘤菌Rarizoclonium riparium（Roth）Harvey：冰岛雷伊阿尔菲约尔的一种具有入侵行为的隐源物种

Rhizoclonium riparium是一种隐源性大型藻类，可自由栖息在淡水，海水和微咸水域中，并能够在各种生境中竞争。在2018年夏季和2019年夏季，在冰岛东部Reyðarfjörður的一个港口中，发现该藻形成了巨大的丝状垫层，覆盖了所有岩石，深度达3 m。通过分子数据证实了物种分类学。在这里，我们报道了该物种在雷伊达尔菲舍尔（Reyðarfjörður）的入侵行为，这可能代表了R.riparium扩散的池源，因为船体结垢是该物种传播的最可能媒介。