@article{fdi:010086144,
  title = {{E}ffect of fishing effort on the trophic functioning of tropical estuaries in {B}razil},
  author = {{L}ira, {A}. {S}. and {L}ucena-{F}redou, {F}. and {L}acerda, {C}. {H}. {F}. and {E}duardo, {L}. {N}. and {F}erreira, {V}. and {F}redou, {T}. and {M}{\'e}nard, {F}r{\'e}d{\'e}ric and {A}ngelini, {R}. and {L}e {L}oc'h, {F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{A} trophic web is a network of complex interactions and energy links between species. {T}hese interactions can be simplified into trophodynamic models, such as {E}copath ({EP}) and {E}co{T}roph ({ET}), important tools providing the holistic view needed for the ecosystem approach to fisheries. {W}e described food web structure and trophic in-teractions by developing an {EP} model for the {S}anta {C}ruz {C}hannel ({SCC}), a large tropical estuarine system in northeastern {B}razil, surrounded by mangroves and highly subject to the impacts of domestic pollution, industry, artisanal fisheries, and aquaculture. {I}n addition, considering ecological and fisheries perspectives, we developed {ET} models in three neighboring {B}razilian estuaries ({SCC}; {S}irinhae ' m - {SIR} and {M}amanguape - {MAM}) to explore levels of exploitation that affect their trophic functioning. {O}ur {EP} and {ET} models consisted of 32 compartments (three primary producers, six invertebrates, 22 fish, and detritus). {K}eystone {I}ndex and {M}ixed {T}rophic {I}mpact analysis pointed that several groups of commercial relevance are also ecologically relevant and lack fishing regulations, such as {S}nooks ({C}entropomus spp.), {J}acks ({C}aranx spp.) and {B}arracudas ({S}phyraena spp). {F}ishery impacts across the trophic level spectrum differ between ecosystems, which causes top-down effects depending on the exploitation dynamics of each system. {T}he fishing pressure affects mainly the low and intermediate {T}rophic {L}evel ({TL}s) in {MAM} and {SCC} and high {TL}s in the {SIR} estuary. {C}onsequently, a decrease of biomass for low and high {TL} was found with the increasing of fishing effort, respectively. {T}hese findings are an important contribution to the trophic modelling of tropical estuaries, indicating that both {EP} and {ET} approaches can be effective tools to improve the understanding of the trophic functioning and fishery effect on estuarine ecosys-tems. {A}dditionally, increasing the knowledge of key ecosystem processes in estuarine systems may help to enhance conservation initiatives for sustainable use of the ecosystem, such as protected areas, temporal control of fishing, and the catch size limit.},
  keywords = {{T}rophic model ; {E}copath ; {E}co{T}roph ; {E}nergy flows ; {M}angrove ; {M}anagement ; {BRESIL} ; {PERNAMBUCO} ; {SANTA} {CRUZ} {CANAL}},
  booktitle = {},
  journal = {{E}stuarine {C}oastal and {S}helf {S}cience},
  volume = {277},
  numero = {},
  pages = {108040 [15 ]},
  ISSN = {0272-7714},
  year = {2022},
  DOI = {10.1016/j.ecss.2022.108040},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086144},
}