@article{fdi:010053283,
  title = {{D}eterminism and plasticity of fish schooling behaviour as exemplified by the {S}outh {P}acific jack mackerel {T}rachurus murphyi},
  author = {{B}ertrand, {A}rnaud and {B}arbieri, {M}.{A}. and {G}erlotto, {F}ran{\c{c}}ois and {L}eiva, {F}. and {C}ordova, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}elagic fish schools are thought to show a general pattern of dispersion at night and aggregation within schools during the day. {T}his pattern is often accepted as the major rule driving most of the other physiological, biological and ecological processes. {F}oraging on mobile prey, for instance, is assumed to be enhanced by schooling behaviour. {C}urrent theory assumes then that foraging is only possible for obligatory gregarious predatory fish from dawn to dusk. {H}owever, offshore mesopelagic communities perform vertical migrations and are out of reach for most oceanic pelagic predators during the day (with the exception of some apex predators, e.g. swordfish or big-eye tuna). {T}o investigate how fish may overcome this apparent contradiction, we studied the 3-dimensional spatial strategy of the {S}outh {P}acific jack mackerel {T}rachurus murphyi according to the abiotic and biotic conditions of the habitat. {D}ata came from acoustic surveys performed in central {C}hile in 1997, 1998 and 1999. {O}ur results show that the jack mackerel distribution was driven by prey during the night when foraging, and related to the hydrology when resting during the day in the upper part of the oxycline. {F}ish were more aggregated at night than during the day, probably because jack mackerel cycles of schooling behaviour depend primarily on prey availability. {T}his 'atypical' behaviour could be an adaptation of gregarious pelagic fish to an oceanic ecosystem. {F}ish schooling behaviour is not necessarily driven directly by the diel cycle; rather, it can be functional and depends on prey availability.},
  keywords = {fish schooling behaviour ; fish adaptive strategies ; diet migration ; predator prey relationships ; pelagic ecosystem functioning ; dissolved oxygen ; jack mackerel ; {PACIFIQUE} {SUD}},
  booktitle = {},
  journal = {{M}arine {E}cology {P}rogress {S}eries},
  volume = {311},
  numero = {},
  pages = {145--156},
  ISSN = {0171-8630},
  year = {2006},
  DOI = {10.3354/meps311145},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053283},
}