@article{fdi:010061771,
  title = {{M}odelling transport of chokka squid ({L}oligo reynaudii) paralarvae off {S}outh {A}frica : reviewing, testing and extending the '{W}estward {T}ransport {H}ypothesis'},
  author = {{M}artins, {R}. {S}. and {R}oberts, {M}. {J}. and {L}ett, {C}hristophe and {C}hang, {N}. and {M}oloney, {C}. {L}. and {C}amargo, {M}. {G}. and {V}idal, {E}. {A}. {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}nnual landings of chokka squid ({L}oligo reynaudii), an important fishing resource for {S}outh {A}frica, fluctuate greatly, and are believed to be related to recruitment success. {T}he {W}estward {T}ransport {H}ypothesis' ({WTH}) attributes recruitment strength to variability in transport of newly hatched paralarvae from spawning grounds to the cold ridge' nursery region some 100-200km to the west, where oceanographic conditions sustain high productivity. {W}e used an individual-based model ({IBM}) coupled with a 3-{D} hydrodynamic model ({ROMS}) to test the {WTH} and assessed four factors that might influence successful transport - {R}elease {A}rea, {M}onth, {S}pecific {G}ravity (body density) and {D}iel {V}ertical {M}igration ({DVM}) - in numerical experiments that estimated successful transport of squid paralarvae to the cold ridge. {A} multifactor {ANOVA} was used to identify the primary determinants of transport success in the various experimental simulations. {A}mong these, release area was found to be the most important, implying that adult spawning behaviour (i.e., birth site fidelity) may be more important than paralarval behaviour in determining paralarval transport variability. {H}owever, specific gravity and {DVM} were found to play a role by retaining paralarvae on the shelf and optimizing early transport, respectively. {U}pwelling events seem to facilitate transport by moving paralarvae higher in the water column and thus exposing them to faster surface currents.},
  keywords = {{A}gulhas {B}ank ; chokka squid ; larval transport ; paralarvae ; recruitment ; {AFRIQUE} {DU} {SUD}},
  booktitle = {},
  journal = {{F}isheries {O}ceanography},
  volume = {23},
  numero = {2},
  pages = {116--131},
  ISSN = {1054-6006},
  year = {2014},
  DOI = {10.1111/fog.12046},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061771},
}