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Prestige oil-spill scarcely scarcely affected the macroinfaunal community structure during the study period (2003–2009) and its effect was limited just to the first campaign (2003), six months after the Prestige accident. Two different communitites were found depending on the intertidal level, supralittoral and intertidal. The former one was dominated by talitrids amphipods, isopods and terrestrial insects. Polychaetes, isopods (Eurydice spp) and the amphipod Pontocrates arenarius prevailed in the intertidal. Check it out here!!. Junoy, J., C. Castellanos, J.M Viéitez, R. Riera. 2013. Seven years of macrofauna monitoring at Ladeira beach (Corrubedo Bay, NW Spain) after the Prestige oil-spill. Oceanologia, 55(2): 393-407.

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Confluence of pollutants or perturbations is common at coastal areas. The combined disposal of sewage and brine affected meiofauna assemblage structure on the surrrounded sandy bare seabeds, with an increase of nematodes due to the organic enrichment from sewage disposal. Differences of grain size composition in the affected sediments explained part of the observed meiofauna variability throughout the study period. As a result, meiofauna could be considered a reliable monitoring tool for studying the environmental effects of combined disposals on coastal assemblages. Riera, R., F. Tuya, A. Sacramento, E. Ramos, Ó. Monterroso, M. Rodríguez. 2013. Influencia de la combinación de vertidos de aguas residuales y salmuera sobre la meiofauna. Ciencias Marinas 39(1): 15-27.

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Intertidal mollusks are subjected to an intense environmental pressure, from human-induced stressors, mainly harvesting, to competition for food and space with other species. A long-term comparison (1994-2014) of limpet size has been conducted as a surrogate of the state of conservation of these two limpets. Both species showed populations dominated largely by small-sized individuals (<30 mm) and a lack of large adults (>60 mm). The proximity to coastal settlements was not a factor to explain limpet assemblage structure. The temporal (1994e2014) comparative study showed a sharp decrease in the mean size of both limpet species (7 mm in P. aspera and 5 mm in P. candei crenata). Riera, R., O. Pérez, O. Álvarez, D. Simón, D. Díaz, O. Monterroso & J. Núñez. 2015. Clear regression of harvested intertidal mollusks. A 20-year (1994-2014) comparative study. Marine Environmental Research, 113. 56-61.