| Autor: |
García-Sanz T., Roca M., Hernandis S. 1, Fraissinet S., Scanu M., Esteban J. L., García-March J. R., Tena, J. and Torres, J |
| Přispěvatelé: |
García-Sanz, T., Roca, M. , Hernandis, S.1, Fraissinet, S. , Scanu, M. , Esteban, J.L. , García-March, J.R. , Tena, J. and Torres, J |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Popis: |
Serra d'Irta (Castellón, Spain) was declared marine reserve of fishing interest (MRFI) in 2003 with the objective of favouring the regeneration of marine resources. This work presents the results obtained in the monitoring studies carried out in this reserve during summer 2017 using different marine macrophytes indexes. The aim of this study was to evaluate the ecological status of the macrophytes as a biological quality element, as a proxy of the water quality of the marine reserve in the contex of the Water Framework Directive (WFD) and to detect anthropogenic pressures. Two species of seagrasses, Posidonia oceanica and Cymodocea nodosa are found in the reserve. To estimate their conservation status, 9 localities were sampled and structural and morphological descriptors were analized. After a multifactorial analysis, results showed that the two localities studied with Posidonia oceanica meadows showed a good ecological status (EQR>0,55). In the case of Cymodocea nodosa only 4 of the 7 localities sampled presented living plants probably as a result of intense storms ocorred in autumn 2016 that altered sedementary bottoms of areas below 10m. The ecological status for the localities with meadows was moderate (EQR>0,41) except for one of them that was good (EQR>0,61). Environmental quality of the marine reserve waters was also estimated using macroalgal littoral community by means of the application of the CARLIT index. Two sectors were distinguished in the reserve costal: a North Sector dominated by Corallina elongata and other opportunistic species favoured by the nutrients provided by freshwater upwellings and limited by the coastal nature of the cliff; and a South Sector dominated by Laurencia spp. that proliferates through all the extensive coastal platforms battered by waves and sprinkled by fronds of Cystoseira spp. indicating a very good water quality. The EQR obtained for the entire extension analized (86,4% of the total coast) was of 0,769 indicating a very good ecological status for the studied area. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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