Geochemical environments at the water-sediment interface in aquaculture ponds showing metal accumulation on shrimp gills

Date 2020-11-03
Author(s) Lemonnier HuguesORCID1, Royer Florence1, Andrieux FrancoiseORCID2, Rabiller Emilie2, Caradec Florian2, Lopez Etienne1, Hubert Clarisse1
Affiliation(s) 1 : Ifremer, IRD, Univ Nouvelle‐Calédonie, Univ La Réunion, UMR 92200 ENTROPIE, 98800 Nouméa, France, New Caledonia
2 : Ifremer - DYNECO PELAGOS, ZI Pointe du Diable, 29280 Plouzané, France
DOI 10.17882/76793
Publisher SEANOE
Keyword(s) Pond aquaculture, Redox, pH, Iron, Cobalt, Manganese, Pyrite, AVS, H2S
Abstract

The gill is the organ by which many toxic metals are taken up by crustaceans. Fe2+ is known to precipitate at its surface, a phenomenon recently observed in some tropical aquaculture ponds. The present study uses a field approach to understand better the environmental conditions and ecological processes involved in this deposit. Because shrimp are exposed to reduced products originating from organic waste accumulated in the sediment, spatial variation in pH, redox potential and concentrations of dissolved metals in pore water were investigated in these ponds. Total organic carbon, acid volatile sulfide and pyrite were also analyzed in the solid phase.

Licence CC-BY-NC-ND
Data
File Size Format Processing Access
77959.xls 60 KB XLS, XLSX Quality controlled data Open access
Top of the page

How to cite 

Lemonnier Hugues, Royer Florence, Andrieux Francoise, Rabiller Emilie, Caradec Florian, Lopez Etienne, Hubert Clarisse (2020). Geochemical environments at the water-sediment interface in aquaculture ponds showing metal accumulation on shrimp gills. SEANOE. https://doi.org/10.17882/76793