@article{fdi:010048342, title = {{A} dynamic and mechanistic model of {PCB} bioaccumulation in the {E}uropean hake ({M}erluccius merluccius)}, author = {{B}odiguel, {X}. and {M}aury, {O}livier and {M}ellon-{D}uval, {C}. and {R}oupsard, {F}. and {L}e {G}uellec, {A}. {M}. and {L}oizeau, {V}.}, editor = {}, language = {{ENG}}, abstract = {{B}ioaccumulation is difficult to document because responses differ among chemical compounds, with environmental conditions. and physiological processes characteristic of each species. {W}e use a mechanistic model, based on the {D}ynamic {E}nergy {B}udget ({DEB}) theory, to take into account this complexity and study factors impacting accumulation of organic pollutants in fish through ontogeny. {T}he bioaccumulation model proposed is a comprehensive approach that relates evolution of hake {PCB} contamination to physiological information about the fish, such as diet, metabolism, reserve and reproduction status. {T}he species studied is the {E}uropean hake ({M}erluccius merluccius, {L} 1758). {T}he model is applied to study the total concentration and the lipid normalised concentration of 4 {PCB} congeners in male and female hakes from the {G}ulf of {L}ions ({NW} {M}editerranean sea) and the {B}ay of {B}iscay ({NE} {A}tlantic ocean). {O}utputs of the model compare consistently to measurements over the life span of fish. {S}imulation results clearly demonstrate the relative effects of food contamination, growth and reproduction on the {PCB} bioaccumulation in hake. {T}he same species living in different habitats and exposed to different {PCB} prey concentrations exhibit marked difference in the body accumulation of {PCB}s. {A}t the adult stage, female hakes have a lower {PCB} concentration compared to males for a given length. {W}e successfully simulated these sex-specific {PCB} concentrations by considering two mechanisms: a higher energy allocation to growth for females and a transfer of {PCB}s from the female to its eggs when allocating lipids from reserve to eggs. {F}inally, by its mechanistic description of physiological processes, the model is relevant for other species and sets the stage for a mechanistic understanding of toxicity and ecological effects of organic contaminants in marine organisms.}, keywords = {{M}erluccius merluccius ; {D}emersal fish ; {P}olychlorinated biphenyls ({PCB}) ; {B}ioaccumulation model ; {B}ioenergetic ; {D}ynamic {E}nergy {B}udget ({DEB})}, booktitle = {}, journal = {{J}ournal of {S}ea {R}esearch}, volume = {62}, numero = {2-3}, pages = {124--134}, ISSN = {1385-1101}, year = {2009}, DOI = {10.1016/j.seares.2009.02.006}, URL = {https://www.documentation.ird.fr/hor/fdi:010048342}, }