@article{fdi:010094910, title = {{I}nfluence of the {A}mazon {R}iver plume on the biodiversity and assemblage structure of lanternfishes ({M}yctophidae)}, author = {{M}artins, {J}. {R}. and {M}incarone, {M}. {M}. and {B}ertrand, {A}rnaud and {A}rtana, {C}. and {L}ucena-{F}redou, {F}. and {K}och {L}arrouy, {A}riane and {L}ima, {R}. {S}. and {N}ol{\'e} {E}duardo, {L}eandro}, editor = {}, language = {{ENG}}, abstract = {{L}anternfishes ({M}yctophidae) are among the most abundant vertebrates globally, playing critical roles in carbon transport, nutrient recycling, and trophic structuring of pelagic ecosystems. {H}owever, they remain poorly understood and are increasingly impacted by anthropogenic activities. {H}ere we investigated how the plume of the world's largest river, the {A}mazon, shapes the diversity and assemblage structure of lanternfishes. {T}o this end, we conducted an integrative characterization of the taxonomic diversity, distribution, and abundance of 2916 lanternfish specimens, representing 31 species, collected during the dry season ({A}ugust-{S}eptember 2021) across areas with varying levels of {A}mazon {R}iver plume influence. {B}ased on a classification of relative importance, five species were classified as abundant and frequent, while the remaining species were predominantly classified as either scarce and frequent (nine species) or scarce and rare (17 species). {I}n regard to vertical distribution, at least 20 of the 31 species were detected at night in epipelagic waters (0-200 m), displaying four distinct broad patterns of vertical migration and distribution. {W}e showed that, while the {A}mazon {P}lume appears to influence lanternfish species richness and size distribution, depth is the primary variable explaining the structuring of lanternfish assemblages. {M}oreover, while diversity appears to be similar to other tropical regions of the {A}tlantic {O}cean, there is a noticeable dominance of certain species, suggesting that the hydrographic structure and nutrient input from the {A}mazon {R}iver may favour specific species.}, keywords = {{D}eep-pelagic fish ; {M}esopelagic zone ; {T}wilight zone ; {B}razil ; {D}eep-sea ; {BRESIL} ; {ATLANTIQUE} ; {AMAZONE}}, booktitle = {}, journal = {{D}eep-{S}ea {R}esearch {P}art {I} : {O}ceanographic {R}esearch {P}apers}, volume = {225}, numero = {}, pages = {104572 [12 p.]}, ISSN = {0967-0637}, year = {2025}, DOI = {10.1016/j.dsr.2025.104572}, URL = {https://www.documentation.ird.fr/hor/fdi:010094910}, }