Zooplankton abundance increasing during the Tagoro submarine volcano post-eruptive process at El Hierro (Canary Islands, Subtropical North Atlantic Ocean)
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AuthorsFernández-de-Puelles, M.L. (María Luz); Gazá, M. (Magdalena); Santandreu, M.M. (María Mar); Herrera , I. (Inma); Lozano, F. (Fernando); Hernández, F. (Fátima); Fraile-Nuez, E. (Eugenio)
The biomass, abundance and diversity of the mesozooplankton community was analyzed during the Tagoro submarine volcano post-eruptive process at El Hierro (27º37’07’’N; 17º59’28’’W, Canary's, World Biosphere Reserve, 2000). Our objective was to establish: 1) a baseline for future research and 2) the recovering of the submarine area. The sampling started 15 months after the volcanic eruption, from morning to midnight,in the epipelagic strata during the oceanographic cruises carried out in March, 2013, 2014 and 2016. Large quantities of mantle-derived gases solutes and heat were released into the surrounding waters during the eruption. Extreme physical-chemical perturbations were seen, which comprising thermal changes, water acidification, deoxygenating and metal-enrichment resulted in significant alterations to the activity of plankton communities. The zooplankton abundance was increasing along the study, and high similarity (>85%) found on composition and diversity, observing significant ...
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