Page 22: of Marine Technology Magazine (June 2016)

Hydrographic Survey

Hydrographic Research at the Doce River Mouth samples were taken, totaling 80 liters of water and 100 kg of

The H39’s sampling program was divided into two phases. sediments. In February 2016, researchers from the Federal

During the ? rst phase, from November 26-30, 2015, more University of Espírito Santo (Ufes) reported the results of the than 390 samples of water and sediments in 21 oceanographic ? rst analysis of the environmental impacts from the dam col- stations distributed over an area of 500 square km were col- lapse. The results showed a high concentration of metals in lected. In total 350 liters of water and 65kg of sediments were the water, an increase the number of nutrients and reduction collected. During the second phase, between December 1-5, the number of species of algae and micro-algae. The research 2015, researchers collected water and sediments in three new group was formed on November 13, 2015, and, since then, sectors, totaling 24 oceanographic stations. Altogether 80 2,785 analysis were performed. The samples were collected

Box Corer from OSIL-UK with sediments from the Doce River mouth on the H39

UFES

June 2016 22 MTR

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