@article{fdi:010053068, title = {{V}alidation of two tropical marine bivalves as bioindicators of mining contamination in the {N}ew {C}aledonia lagoon : field transplantation experiments}, author = {{H}{\'e}douin, {L}aetitia and {P}ringault, {O}livier and {B}ustamante, {P}. and {F}ichez, {R}enaud and {W}arnau, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he bioaccumulation and retention capacities of some key local contaminants of the {N}ew {C}aledonia lagoon ({A}g, {A}s, {C}d, {C}o, {C}r, {C}u, {M}n, {N}i and {Z}n) have been determined in the oyster {I}sognomon isognomon and the edible clam {G}afrarium tumidum during transplantation experiments. {I}n a first set of experiments, oysters and clams from a clean site were transplanted into contaminated sites. {U}ptake kinetics determined in the field indicated that for {C}r and {C}u in oysters and {C}o, {N}i, and {Z}n in clams, concentrations in transplanted bivalves reached those of resident organisms after 100d, whereas for the other elements, it would require a longer time for transplanted bivalves to reach the same levels as in the resident populations (e.g., up to 3 years for {C}d). {H}owever, the slow uptake rate for metals observed in the latter transplantation is rather related to low bioavailability of metals at the contaminated sites than to low bioaccumulation efficiency of the organisms. {I}ndeed, results of a second transplantation experiment into two highly contaminated stations indicated a faster bioaccumulation of metals in both bivalves. {R}esults of both transplantations point out that the clam {G}. tumidum is a more effective bioindicator of mining contamination than {I}. isognomon, since it is able to bioaccumulate the contaminants to a greater extent. {H}owever the very efficient metal retention capacity noted for most elements indicates that organisms originating from contaminated sites would not be suitable for monitoring areas of lower contamination. {H}ence, geographical origin of animals to be transplanted in a monitoring perspective should be carefully selected.}, keywords = {{M}olluscs ; {O}yster ; {C}lam ; {B}ioaccumulation ; {B}iomonitoring ; {M}etals}, booktitle = {}, journal = {{W}ater {R}esearch}, volume = {45}, numero = {2}, pages = {483--496}, ISSN = {0043-1354}, year = {2011}, DOI = {10.1016/j.watres.2010.09.002}, URL = {https://www.documentation.ird.fr/hor/fdi:010053068}, }