Posidonia oceanica L. (Delile) meadows regression: Long-term affection may be induced by multiple impacts
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Título: | Posidonia oceanica L. (Delile) meadows regression: Long-term affection may be induced by multiple impacts |
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Autor/es: | Blanco Murillo, Fabio | Fernández-Torquemada, Yolanda | Garrote-Moreno, Aurora | Sáez, Claudio A. | Sánchez-Lizaso, José Luis |
Grupo/s de investigación o GITE: | Biología Marina | Recursos Hídricos y Desarrollo Sostenible |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada |
Palabras clave: | Seagrass regression | Environmental monitoring | Posidonia oceanica | Population dynamics | Western Mediterranean |
Área/s de conocimiento: | Zoología |
Fecha de publicación: | 13-ene-2022 |
Editor: | Elsevier |
Cita bibliográfica: | Marine Environmental Research. 2022, 174: 105557. https://doi.org/10.1016/j.marenvres.2022.105557 |
Resumen: | Coastal development has an undeniable impact on marine ecosystems resulting in the detriment of the more sensible communities. Posidonia oceanica meadows are climax communities which offer a wide variety of ecosystem services both ecological and socio-economic. Human-derived impact on these habitats has been widely assessed although conclusions may vary depending on the area. P. oceanica meadow regression next to the city of Alicante (SE Spain) was analyzed on the long term (1984–2014) using bionomic cartographies and side-scan sonar images and, during the last two decades (2003–2021), using cover percentage and shoot density descriptors in the remaining meadow. Results showed a 25% colonized area reduction since 1984, this process being more rapid during the 1984–1994 period and decreasing with time. Cover and density have suffered a significant decrease in the last 20 years, mainly in the upper limit of the meadow. Dead matte cover was also assessed and have shown a significant increase in the same period following an inverse trend with the other metrics. There are several coastal impacts which have co-occurred in the area in the last few decades (port enlargement, brine and sewage discharges, industrial activity) thus resulting in the regression of the meadow. The existing negative trend of the measured descriptors indicate the necessity of implementing management actions which focus on the present sources of impact and actively reduce their effect on P. oceanica beds. |
Patrocinador/es: | F. Blanco-Murillo was supported by an FPU PhD grant from Universidad de Alicante (Grant ID: FPUUA98). C.A. Sáez and F. Blanco-Murillo were financed by projects ANID InES I+D 2021 (INID210013), CORFO CAPTA (9CTIGH-121349) and Marie Skłodowska-Curie Action (888415). |
URI: | http://hdl.handle.net/10045/120884 |
ISSN: | 0141-1136 (Print) | 1879-0291 (Online) |
DOI: | 10.1016/j.marenvres.2022.105557 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 Published by Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.marenvres.2022.105557 |
Aparece en las colecciones: | INV - BM - Artículos Científicos / Scientific Papers INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas |
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Archivo | Descripción | Tamaño | Formato | |
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Blanco-Murillo_etal_2022_MarEnvironRes_final.pdf | Versión final (acceso restringido) | 3,2 MB | Adobe PDF | Abrir Solicitar una copia |
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