The invasive, non-native slipper limpet Crepidula fornicata is poorly adapted to sediment burial

MARINE POLLUTION BULLETIN

卷:130

Article

Powell-Jennings, Chloe¹  Callaway, Ruth¹ 

[1] Swansea Univ, Coll Sci, Biosci Dept, Singleton Pk, Swansea SA2 8PP, W Glam, Wales

关键词: Crepidula fornicata;    Tidal Lagoon Swansea Bay;    Dredge spoil disposal;    Coastal infrastructure;    Invasive non-native species;   

DOI  :  10.1016/j.marpolbul.2018.03.006

来源: Elsevier

【 摘 要 】

The American slipper limpet Crepidula fornicata is an invasive, non-native species (INNS) abundant along the European coast. Its further distribution may be facilitated by activities such as dredging and spoil disposal, and the aim of this study was to assess whether C. fornicata is able to survive sediment burial. The slipper limpet was found attached to hard substratum in intertidal areas, but it was absent at a nearby subtidal dredge spoil site. In laboratory experiments 22% of C. fornicata emerged when buried under a 2 cm sediment-layer; only half of them survived. When buried under >= 6 cm none re-surfaced or survived. The results provided evidence that C. for-nicata is poorly adapted to adjust its vertical position in sediment and is killed by sudden burial underneath 2 to 6 cm of sediment. The combined laboratory experiments and field surveys suggested that C. fornicata has limited scope to survive the dredge spoil disposal process.

【 授权许可】

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