Floating Wetland Islands Implementation and Biodiversity Assessment in a Port Marina
| Autor: | Ana P. Mucha, Maria Paola Tomasino, Cristina S. C. Calheiros, C. Marisa R. Almeida, João Carecho |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Hydraulic engineering
floating islands Geography Planning and Development Biodiversity Wetland 010501 environmental sciences Aquatic Science water quality 01 natural sciences Biochemistry biofilm Ecosystem services Phragmites 03 medical and health sciences lcsh:Water supply for domestic and industrial purposes artificial floating islands lcsh:TC1-978 saline biofouling nature-based solution seawater 030304 developmental biology 0105 earth and related environmental sciences Water Science and Technology lcsh:TD201-500 0303 health sciences geography geography.geographical_feature_category biology Ecology marine biology.organism_classification Halimione portulacoides Environmental science Water quality Juncus maritimus ecosystem services Spartina maritima |
| Zdroj: | Water Volume 12 Issue 11 Water, Vol 12, Iss 3273, p 3273 (2020) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w12113273 |
| Popis: | Floating wetland islands (FWI) are considered nature-based solutions with great potential to promote several ecosystem services, such as biodiversity and water quality enhancement through phytoremediation processes. To our knowledge, the present work is the first to scientifically document the in-situ establishment of an FWI in a seawater port marina. The establishment and performance of a cork floating platform with a polyculture (Sarcocornia perennis, Juncus maritimus, Phragmites australis, Halimione portulacoides, Spartina maritima, Limonium vulgare) was evaluated. The diversity of organisms present in the FWI was undertaken based on the macrofauna assessment, taking into consideration marine water characterization, with a focus on hydrocarbons. Microbial communities were assessed based on metabarcoding approach to study 16S rRNA gene from environmental DNA retrieved from biofilm (from the planting media), marine biofouling (from the submerged platform) and surface marina water. S. perennis was the species with the highest survival rate and growth. The structure of the microbial community showed clear differences between those established in the FWI and those in the surrounding water, showing the presence of some bacterial groups that can be relevant for bioremediation processes (e.g., Saprospiraceae family). Concerning the macrofauna analysis, Mytilus sp. was the predominant taxa. To be of relevance, total petroleum hydrocarbons were detected at the marina up to ca. 6 mg/L. This study gives new insights into broadening FWI application to the saline environments of port marinas and to supporting a management strategy to promote several ecosystem services such biodiversity, species habitat, water quality enhancement and added aesthetic value to the marina landscape. |
| Databáze: | OpenAIRE |
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