@article{fdi:010077888,
  title = {{T}he effects of mesoscale oceanographic structures and ambient conditions on the catch of albacore tuna in the {S}outh {P}acific longline fishery},
  author = {{Z}hou, {C}. and {H}e, {P}. {G}. and {X}u, {L}. {X}. and {B}ach, {P}ascal and {W}ang, {X}. {F}. and {W}an, {R}. and {T}ang, {H}. and {Z}hang, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}lbacore tuna ({T}hunnus alalunga) exhibit patchy concentrations associated with biological process at a wide range of spatial scales, resulting in variations in their catchability by fishing gears. {H}ere, we investigated the association of catch variation for pelagic longlines in the {S}outh {P}acific {O}cean with oceanographic mesoscale structures (in horizontal dimension) and ambient conditions (in vertical dimension). {T}he distribution of albacore tuna as indicated by catch per unit effort ({CPUE}) of longlines was significantly related to the presence of mesoscale structures, with higher {CPUE} found at locations closer to thermal fronts and with greater gradient magnitudes, as well as areas marked by peripheral contour line of the anticyclone indicated by {S}ea {S}urface {H}eight {A}nomalies similar to 0.05 m. {S}urface mesoscale current velocity had the negative effect on the catch, probably as a result of decreased catchability by shoaling the hook depth. {V}ertical distribution of albacore in the survey region of {S}outh {P}acific {O}cean was hardly restricted by ambient temperature and oxygen concentration, though effect of ambient temperature was relevant and showed a negatively linear correlation with {CPUE} at the range of 20-24 degrees {C}. {O}n the contrary, albacore distribution was evidently dominated by the water depth and showed strong preference on water depth of 200 m, which was likely a representative feeding layer. {T}he presence of prey resources and their accessibility by albacore revealed by mesoscale structures in the biological and physical processes, and catchability determined by the location of the baited hooks comprehensively contribute to the variability of catch.},
  keywords = {albacore tuna ; environmental conditions ; hook depth ; longline ; ocean ; eddy ; ocean fronts ; {S}outh {P}acific {O}cean ; {PACIFIQUE} {SUD}},
  booktitle = {},
  journal = {{F}isheries {O}ceanography},
  volume = {29},
  numero = {3},
  pages = {238--251},
  ISSN = {1054-6006},
  year = {2020},
  DOI = {10.1111/fog.12467},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077888},
}