@article{fdi:010080670, title = {{G}eochemistry of an endorheic thalassohaline ecosystem : the {D}ziani {D}zaha crater lake ({M}ayotte {A}rchipelago, {I}ndian {O}cean)}, author = {{S}arazin, {G}. and {J}ezequel, {D}. and {L}eboulanger, {C}hristophe and {F}ouilland, {E}. and {L}e {F}loc'h, {E}. and {B}ouvy, {M}arc and {G}erard, {E}. and {A}gogue, {H}. and {B}ernard, {C}. and {H}ugoni, {M}. and {G}rossi, {V}. and {T}roussellier, {M}. and {A}der, {M}.}, editor = {}, language = {{ENG}}, abstract = {{D}ziani {D}zaha is a maar the age of which is close to 4000 years. {W}hile its water is thought to have originated from seawater it is now considered as an extreme environment due to its hypersaline and alkaline characteristics. {T}hose extreme features have led to the simplification of the trophic network. {C}yanobacteria account for up to 95% of the photosynthetic biomass. {T}he main biogeochemical processes, i.e. photosynthesis, bacterial sulfate reduction and methanogenesis could explain the current water composition. {A}s far as we know, this ecosystem could be unique on {E}arth, extending the nature and chemical limits of aquatic inland ecosystems.}, keywords = {{T}halassohaline lake ; {E}ndorheic ecosystem ; {C}yanobacteria ; {M}ethane emission ; {B}iogeochemistry ; {M}ayotte ; {MAYOTTE} ; {OCEAN} {INDIEN} ; {DZIANI} {DZAHA} {LAC}}, booktitle = {}, journal = {{C}omptes {R}endus {G}eoscience}, volume = {352}, numero = {8}, pages = {559--577}, ISSN = {1631-0713}, year = {2020}, DOI = {10.5802/crgeos.43}, URL = {https://www.documentation.ird.fr/hor/fdi:010080670}, }