@article{fdi:010084659,
  title = {{D}iet consistency but large-scale isotopic variations in a deep-sea shark : the case of the velvet belly lantern shark, {E}tmopterus spinax, in the northeastern {A}tlantic region and {M}editerranean {S}ea},
  author = {{B}esnard, {L}. and {D}uchatelet, {L}. and {B}ird, {C}. {S}. and {L}e {C}roizier, {G}ael and {M}ichel, {L}. and {P}inte, {N}. and {L}epoint, {G}. and {S}chaal, {G}. and {V}ieira, {R}. {P}. and {G}oncalves, {J}. {M}. {S}. and {M}artin, {U}. and {M}allefet, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}eep-sea elasmobranchs are commonly reported as bycatch of deep-sea fisheries and their subsequent loss has been highlighted as a long-running concern to the ecosystem ecological functioning. {T}o understand the possible consequences of their removal, information on basic ecological traits, such as diet and foraging strategies, is needed. {S}uch aspects have been widely studied through stomach content analysis but the lack of long-term dietary information requires other tools to be used such as stable isotopes. {T}his study examines nitrogen and carbon isotope compositions of the velvet belly lantern shark, {E}tmopterus spinax, one of the most impacted shark species in northeastern {A}tlantic fisheries as a result of accidental catches. {E}. spinax was sampled at four different locations, characterized by contrasting oceanographic and ecological conditions: the western {M}editerranean {S}ea (near the {B}alearic {I}slands), the southern {I}berian upwelling system, {R}ockall {T}rough and southwestern {N}orwegian fjords. {S}tomach content analysis revealed similar prey species among sites, with a diet dominated by {E}uphausiacea (mostly {M}eganyctiphanes norvegica) and an ontogenetic shift towards small teleost fishes, cephalopods or other crustaceans. {D}espite these similarities, muscle stable isotope compositions differed across sampled locations. {R}ather than clear dietary differences, the contrasted isotopic values are likely to reflect differences in environmental settings and biogeochemical processes affecting nutrient dynamics at the base of the food webs.},
  keywords = {{T}rophic ecology ; {S}table isotopes ; {S}tomach content ; {M}esopredator ; {F}ood webs ; {B}enthopelagic predator ; {ATLANTIQUE} ; {MEDITERRANEE} ; {ATLANTIQUE} {NORD} {EST}},
  booktitle = {},
  journal = {{D}eep-{S}ea {R}esearch {P}art {I} : {O}ceanographic {R}esearch {P}apers},
  volume = {182},
  numero = {},
  pages = {103708 [11 ]},
  ISSN = {0967-0637},
  year = {2022},
  DOI = {10.1016/j.dsr.2022.103708},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084659},
}