@article{fdi:010091395, title = {{D}eep-pelagic fishes are anything but similar : a global synthesis}, author = {{E}duardo, {L}. {N}. and {M}incarone, {M}. {M}. and {S}utton, {T}. and {B}ertrand, {A}rnaud}, editor = {}, language = {{ENG}}, abstract = {{D}eep-pelagic fishes are among the most abundant vertebrates on {E}arth. {T}hey play a critical role in sequestering carbon, providing prey for harvestable fishing stocks and linking oceanic layers and trophic levels. {H}owever, knowledge of these fishes is scarce and fragmented, hampering the ability of both the scientific community and stakeholders to address them effectively. {W}hile modelling approaches incorporating these organisms have advanced, they often oversimplify their functional and ecological diversity, potentially leading to misconceptions. {T}o address these gaps, this synthesis examines the biodiversity and ecology of global deep-pelagic fishes. {W}e review pelagic ecosystem classifications and propose a new semantic framework for deep-pelagic fishes. {W}e evaluate different sampling methods, detailing their strengths, limitations and complementarities. {W}e provide an assessment of the world's deep-pelagic fishes comprising 1554 species, highlighting major groups and discussing regional variability. {B}y describing their morphological, behavioural and ecological diversity, we show that these organisms are far from homogeneous. {B}uilding on this, we call for a more realistic approach to the ecology of deep-pelagic fishes transitioning between very different ecological niches during diel vertical migrations. {T}o facilitate this, we introduce the concept of 'diel-modulated realised niche' and propose a conceptual model synthesising the multiple drivers responsible for such transitions. {W}e assess the biodiversity and ecology of the world's deep-pelagic fishes, emphasising that these organisms are far from homogeneous. {B}uilding on this, we introduce the concept of '{D}iel-{M}odulated {R}ealised {N}iche' and advocate for a more realistic approach to the ecology of deep-pelagic fishes.}, keywords = {bathypelagic ; carbon pump ; deep sea ; mesopelagic ; midwater ; niche ; pelagic ecosystems ; twilight zone ; vertical migration ; {MONDE}}, booktitle = {}, journal = {{E}cology {L}etters}, volume = {27}, numero = {9}, pages = {e14510 [17 ]}, ISSN = {1461-023{X}}, year = {2024}, DOI = {10.1111/ele.14510}, URL = {https://www.documentation.ird.fr/hor/fdi:010091395}, }