@article{fdi:010091027, title = {{C}oping with environmental degradation : physiological and morphological adjustments of wild mangrove fish to decades of aquaculture-induced nutrient enrichment}, author = {{D}ubuc, {A}. and {R}ummer, {J}. {L}. and {V}igliola, {L}aurent and {L}emonnier, {H}.}, editor = {}, language = {{ENG}}, abstract = {{T}he impact of eutrophication on wild fish individuals is rarely reported. {W}e compared physiological and morphological traits of {S}iganus lineatus chronically exposed to aquaculture-induced eutrophication in the wild with individuals living at a control site. {E}utrophication at the impacted site was confirmed by elevated organic matter (up to 150 % higher), phytoplankton (up to 7 times higher), and reduced oxygen (up to 60 % lower). {P}hysiological and morphological traits of {S}. lineatus differed significantly between the two sites. {F}ish from the impacted site exhibited elevated hypoxia tolerance, increased gill surface area, shorter oxygen diffusion distances, and altered blood oxygen-carrying capacity. {E}levated blood lactate and scope for anaerobic {ATP} production were observed, suggesting enhanced survival below critical oxygen levels. {A} significant 8.5 % increase in metabolic costs and altered allometric scaling, related to environmental degradation, were recorded. {O}ur study underscores eutrophication's profound impact at the organism-level and the importance to mitigate it.}, keywords = {{C}oastal eutrophication ; {H}ypoxia tolerance ; {P}hysiological plasticity ; {C}onservation physiology ; {O}xygen uptake rates ; {A}llometry mass scaling}, booktitle = {}, journal = {{M}arine {P}ollution {B}ulletin}, volume = {205}, numero = {}, pages = {116599 [11 p.]}, ISSN = {0025-326{X}}, year = {2024}, DOI = {10.1016/j.marpolbul.2024.116599}, URL = {https://www.documentation.ird.fr/hor/fdi:010091027}, }