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The emergent fouling population after severe eutrophication in the Mar Menor coastal lagoon
Sandonnini, J.; Del Pilar Ruso, Y.; Cortés Melendreras, E.; Barberá, C.; Hendriks, I.E.; Kersting, D.K.; Giménez-Casalduero, F. (2021). The emergent fouling population after severe eutrophication in the Mar Menor coastal lagoon. Regional Studies in Marine Science 44: 101720. https://dx.doi.org/10.1016/j.rsma.2021.101720
In: Regional Studies in Marine Science. Elsevier: Amsterdam. ISSN 2352-4855, meer
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| Trefwoorden |
Polychaeta [WoRMS]
Marien/Kust |
| Author keywords |
Coastal lagoons, Mar Menor, Polychaetes, Fouling, eutrophication |
| Auteurs | | Top |
- Sandonnini, J.
- Del Pilar Ruso, Y.
- Cortés Melendreras, E.
- Barberá, C.
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- Hendriks, I.E., meer
- Kersting, D.K.
- Giménez-Casalduero, F.
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| Abstract |
Mar Menor is one of the largest coastal lagoons in the Mediterranean basin. Over the years, Mar Menor has suffered a significant environmental degradation due to multiple factors with anthropogenic origin. The transformation from a rain-fed basin to intensive irrigated agriculture has led to an rise in the water inflow and nutrients in the basin, which has provoked severe eutrophication. The increase in nutrients led to changes in the structure and function of the lagoon ecosystems. The epibenthic and suspension feeder organisms have benefited from this imbalance, proliferating and reaching a high population density. The composition and abundance of the species assemblage found in the sub-coastal bottoms of the coastal lagoon after the environmental crisis occurred in 2016, using artificial settlement structures. The variation in community density and affinity between sampling sites in 2017 and 2018, were determined. A total of 31 species belonging to 27 genera and 7 phyla were observed in 11 samples. The best represented class are polychaeta (Phylum Annelida) with 11 identified species. The genus with the greatest species richness was Hydroides with two species: H. dianthus (Verrill, 1873), and H. elegans (Haswell, 1883), both of them considered potentially invasive and opportunistic species followed by the genus Serpula, with two species: S. vermicularis (Linnaeus, 1767), and S. concharum (Langerhans, 1880) and the genus Branchiomma was represented with another exotic invasive species, B. boholense (Grube, 1878), which is only found in collectors in 2018. These results have allowed to increase the knowledge about the effect of eutrophication in the structure of the fouling community in the assemblage succession in the Mar Menor coastal lagoon. |
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