@article{fdi:010089474,
  title = {{S}table isotopes reveal intrapopulation heterogeneity of porbeagle shark ({L}amna nasus)},
  author = {{S}erre, {S}. and {J}ung, {A}. {R}. {L}. and {C}herel, {Y}. and {G}amblin, {C}. and {H}ennache, {C}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {L}orrain, {A}nne and {P}riac, {A}. and {S}chaal, {G}. and {S}tephan, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}orbeagle ({L}amna nasus) is an ubiquist, highly mobile and long-living shark species with spatial and temporal sex and size segregation observed in catches. {P}orbeagle sharks were targeted by commercial fisheries in the {E}uropean waters until the closure of the fishery in 2010. {M}ost of the {F}rench fleet catches were located in {B}ay of {B}iscay, {C}eltic {S}ea and the {E}nglish {C}hannel. {T}he aim of the study was to find out occurrences of spatial segregation within the shark population in the {N}ortheast {A}tlantic {O}cean based on the stable isotope method. {C}arbon and nitrogen stable isotopes (delta 13{C}, delta 15{N}) were measured in muscle of porbeagle sharks fished in the {B}ay of {B}iscay and the {C}eltic {S}ea between {A}pril and {S}eptember 2008, and {A}pril and {J}une 2009. {N}either influence of sex nor ontogenic isotopic shift was detected in the sampled sharks, but muscle delta 13{C} and delta 15{N} values increased significantly from offshore towards coastal area, which reflected inter-areas variability. {R}ealized isotopic niches were similar amongst offshore areas whilst in {S}t {G}eorges' {C}hannel muscle isotopic composition exhibited higher interindividual variability. {T}his underpins the lack of information on life history of porbeagle sharks and underlines the need of more information on the species movements to support population management in {E}uropean waters.},
  keywords = {{F}isheries ; {M}igration ; {B}ay of {B}iscay ; {C}eltic {S}ea ; {I}sotopic niche ; {ATLANTIQUE} ; {FRANCE} ; {GASCOGNE} {GOLFE}},
  booktitle = {},
  journal = {{R}egional {S}tudies in {M}arine {S}cience},
  volume = {69},
  numero = {},
  pages = {103340 [7 p.]},
  ISSN = {2352-4855},
  year = {2024},
  DOI = {10.1016/j.rsma.2023.103340},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089474},
}