@article{fdi:010076650,
  title = {{P}artial migration and early size of southern hake {M}erluccius australis : a journey between estuarine and oceanic habitats off {N}orthwest {P}atagonia},
  author = {{T}oledo, {P}. and {D}arnaude, {A}. {M}. and {N}iklitschek, {E}. {J}. and {O}jeda, {V}. and {V}oue, {R}. and {L}eiva, {F}. {P}. and {L}abonne, {M}aylis and {C}anales-{A}guirre, {C}. {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}artial migration is a key adaptive strategy, increasingly observed across multiple taxa. {T}o investigate partial migration and life-cycle diversity of {M}erluccius australis in northwestern {P}atagonia, we analysed isotopic (delta {C}-13, delta {O}-18) and elemental ({B}-11, {N}a-23, {M}g-24, {M}n-55, {S}r-86, {B}a-138) compositions of otoliths from juveniles, sub-adults, and adults to identify nursery origins, habitats used, and migratory behaviours of multiple cohorts (1990-2005). {I}nfluence of early size upon migration was assessed by comparing back-calculated sizes at demersal recruitment between resident and migratory adults. {A}lthough partial migration occurred at both estuarine and oceanic nursery habitats, migratory behaviour was more frequent in fish of estuarine origin (59%) than in fish of oceanic origin (17%). {A}dults of estuarine origin dominated both estuarine (92%) and oceanic (77%) sampling areas. {A}lthough we found no significant differences in size at demersal recruitment between oceanic-resident and oceanic-migratory fish, a strong relationship between size at demersal recruitment and migratory behaviour appeared in fish of estuarine origin, whose probability of migration increased from 5% to 95% as demersal recruitment size increased from 18.8 to 23.6cm. {F}urther research on {M}. australis life cycle is required to incorporate sub-population processes into the stock assessment and management models being used for this overexploited species.},
  keywords = {early size ; {M}erluccius australis ; nor-{P}atagonia ; otoliths ; partial migration ; {PACIFIQUE} ; {CHILI} ; {PATAGONIE}},
  booktitle = {},
  journal = {{ICES} {J}ournal of {M}arine {S}cience},
  volume = {76},
  numero = {4},
  pages = {1094--1106},
  ISSN = {1054-3139},
  year = {2019},
  DOI = {10.1093/icesjms/fsy170},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076650},
}