Are shallow-water shrimps proxies for hydrothermal-vent shrimps to assess the impact of deep-sea mining?

Type Article
Date 2019-10
Language English
Author(s) Mestre N.C.1, Auguste M.1, de Sá L.C.1, Fonseca T.G.1, Cardoso C.1, Brown A.2, Barthelemy D.3, Charlemagne N.4, Hauton C.2, Machon J.4, Ravaux J.4, Shillito B.4, Thatje S.2, Bebianno M.J.1
Affiliation(s) 1 : Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
2 : Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, UK
3 : Océanopolis, Port de Plaisance du Moulin Blanc BP 91039, 29210, Brest Cedex 1, France
4 : Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St Bernard, 75252, Cedex 5 Paris, France
Source Marine Environmental Research (0141-1136) (Elsevier BV), 2019-10 , Vol. 151 , P. 104771 (11p.)
DOI 10.1016/j.marenvres.2019.104771
WOS© Times Cited 5
Keyword(s) Deep-sea mining, Ecotoxicology, Biomarkers, Mirocaris fortunata, Palaemon

Polymetallic seafloor massive sulphide deposits are potential targets for deep-sea mining, but high concentrations of metals (including copper - Cu) may be released during exploitation activities, potentially inducing harmful impact. To determine whether shallow-water shrimp are suitable ecotoxicological proxies for deep-sea hydrothermal vent shrimp the effects of waterborne Cu exposure (3 and 10 days at 0.4 and 4 μM concentrations) in Palaemon elegans, Palaemon serratus, and Palaemon varians were compared with Mirocaris fortunata. Accumulation of Cu and a set of biomarkers were analysed. Results show different responses among congeneric species indicating that it is not appropriate to use shallow-water shrimps as ecotoxicological proxies for deep-water shrimps. During the evolutionary history of these species they were likely subject to different chemical environments which may have induced different molecular/biochemical adaptations/tolerances. Results highlight the importance of analysing effects of deep-sea mining in situ and in local species to adequately assess ecotoxicological effects under natural environmental conditions.

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Mestre N.C., Auguste M., de Sá L.C., Fonseca T.G., Cardoso C., Brown A., Barthelemy D., Charlemagne N., Hauton C., Machon J., Ravaux J., Shillito B., Thatje S., Bebianno M.J. (2019). Are shallow-water shrimps proxies for hydrothermal-vent shrimps to assess the impact of deep-sea mining? Marine Environmental Research, 151, 104771 (11p.). Publisher's official version : , Open Access version :