@article{fdi:010076135,
  title = {{I}mplementation of an end-to-end model of the {G}ulf of {L}ions ecosystem ({NW} {M}editerranean {S}ea). {II}. {I}nvestigating the effects of high trophic levels on nutrients and plankton dynamics and associated feedbacks},
  author = {{D}iaz, {F}. and {B}anaru, {D}. and {V}erley, {P}hilippe and {S}hin, {Y}unne-{J}ai},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he end-to-end {OSMOSE}-{G}o{L} model parameterized, calibrated and evaluated for the {G}ulf of {L}ions ecosystem ({N}orthwestern {M}editerranean {S}ea) has been used to investigate the effects of introducing two-ways coupling between the dynamics of {L}ow and {H}igh {T}rophic {L}evel groups. {T}he use of a fully dynamic two-ways coupling between the models of {L}ow and {H}igh {T}rophic {L}evels organisms provided some insights in the functioning of the food web in the {G}ulf of {L}ions. {O}n the whole microphytoplankton and mesozooplankton were found to be preyed upon by {H}igh {T}rophic {L}evels planktivorous groups at rates lower than 20% and 30% of their respective natural mortality rates, but these relatively low rates involved some important alterations in the infra-seasonal and annual cycles of both {H}igh and {L}ow {T}rophic {L}evels groups. {T}hey induced significant changes in biomass, fisheries landings and food web interactions by cascading effects. {S}patial differential impacts of {H}igh {T}rophic {L}evels predation on plankton are less clear except in areas in which primary productivity is high. {H}igher predation rates on plankton groups were encountered within the area of the {R}hone river's influence and in areas associated to the presence of mesoscale eddies in the {N}orthwestern part of the {G}ulf of {L}ions, especially. {G}enerally, the pressure of the {H}igh {T}rophic {L}evels predation was the highest in areas of highest biomass whatever the plankton group considered. {T}he two-ways coupling between {L}ow and {H}igh {T}rophic {L}evels models revealed both bottom-up and top-down controls in the ecosystem with effects on planktivorous species similar to those observed in the field. {T}he use of the end-to-end model enabled to propose a set of potential mechanisms that may explain the observed decrease in small pelagic catches by the {F}rench {M}editerranean artisanal fisheries over the last decade.},
  keywords = {{E}nd-to-end model ; {T}wo-ways coupling ; {P}lankton ; {F}isheries ; {F}ood web ; functioning ; {MEDITERRANEE} ; {LION} {GOLFE}},
  booktitle = {},
  journal = {{E}cological {M}odelling},
  volume = {405},
  numero = {},
  pages = {51--68},
  ISSN = {0304-3800},
  year = {2019},
  DOI = {10.1016/j.ecolmodel.2019.05.004},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076135},
}