@article{fdi:010078901,
  title = {{D}uality of trophic supply and hydrodynamic connectivity drives spatial patterns of {P}acific oyster recruitment},
  author = {{L}agarde, {F}. and {F}iandrino, {A}. and {U}bertini, {M}. and d'{O}rbcastel, {E}. {R}. and {M}ortreux, {S}. and {C}hiantella, {C}. and {B}ec, {B}. and {B}onnet, {D}. and {R}oques, {C}. and {B}ernard, {I}. and {R}ichard, {M}. and {G}uyondet, {T}. and {P}ouvreau, {S}. and {L}ett, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he recent discovery of {P}acific oyster {C}rassostrea gigas (also known as {M}agallana gigas) spatfields in a {M}editerranean lagoon intensely exploited for shellfish farming ({T}hau lagoon) revealed significant contrasts in spatial patterns of recruitment. {W}e evaluated the processes that drive spatial patterns in oyster recruitment by comparing observed recruitment, simulated hydrodynamic connectivity and ecological variables. {W}e hypothesized that spatial variability of recruitment depends on (1) hydrodynamic connectivity and (2) the ecology of the larval supply, settlement, metamorphosis, survival and biotic environmental parameters. {W}e assessed recruitment at 6-8 experimental sites by larval sampling and spat collection inside and outside oyster farming areas and on an east-west gradient, from 2012-2014. {H}ydrodynamic connectivity was simulated using a numerical 3{D} transport model assessed with a {E}ulerian indicator. {T}he supply of large umbo larvae did not differ significantly inside and outside oyster farming areas, whereas the supply of pediveligers to sites outside shellfish farms was structured by hydrodynamic connectivity. {I}nside shellfish farming zones, unfavorable conditions due to trophic competition with filter-feeders jeopardized their settlement. {I}n this case, our results suggest loss of settlement competence by oyster larvae. {T}his confirms our hypothesis of top-down trophic control by the oysters inside farming zones of {T}hau lagoon in summer that fails to meet the ecological requirements of these areas as oyster nurseries. {K}nowledge of oyster dispersal, connectivity and recruitment in coastal lagoons will help local development of sustainable natural spat collection. {O}n a global scale, our method could be transposed to other basins or used for other species such as mussels, clams or scallops, to better understand the spatial patterns of bivalve recruitment. {M}anagement of the oyster industry based on natural spat collection will help develop a sustainable activity, based on locally adapted oyster strains but also by reducing the risks of transferring pathogens between basins and the global carbon footprint of this industry.},
  keywords = {{C}rassostrea gigas ; {C}oastal lagoon ; {L}arval ecology ; {S}patial patterns ; {C}onnectivity ; {S}ettlement ; {R}ecruitment ; {O}ligotrophication ; {FRANCE} ; {MEDITERRANEE} ; {THAU} {LAGON}},
  booktitle = {},
  journal = {{M}arine {E}cology {P}rogress {S}eries},
  volume = {632},
  numero = {},
  pages = {81--100},
  ISSN = {0171-8630},
  year = {2019},
  DOI = {10.3354/meps13151},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078901},
}