@article{PAR00019868,
  title = {{I}nterspecific differences in the effect of fish on marine microbial plankton},
  author = {{V}illeger, {S}. and {F}ouilland, {E}. and {A}rgenty, {J}. and {B}ouvier, {C}. and {C}arr{\'e}, {C}laire and {B}ouvier, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he productivity of most marine ecosystems is limited by the availability of dissolved nitrogen ({N}) and phosphorus ({P}). {N}utrient recycling is therefore a key process for ecosystem functioning. {F}ish recycle nutrients through the excretion of ammonia and phosphate and can influence the abundance and community structure of primary producers such as phytoplankton. {H}owever, the effect of fish on other plankton compartments, and whether all fish species have similar effects, is largely unknown. {W}e used a tank experiment to test how 2 {M}editerranean fish species, gilthead seabream {S}parus aurata and golden mullet {C}helon auratus, with distinctly different {N} and {P} excretion rates, can affect the abundance and community structure of 3 plankton compartments: phytoplankton, bacterioplankton, and microzooplankton. {W}e found that the nutrients released by seabream (whose excreta had an {N}:{P} molar ratio greater than the {R}edfield ratio of 16:1) induced a substantial increase in the abundance of all plankton compartments. {I}n addition, with seabream, the relative abundance of diatoms in the phytoplankton communities increased. {H}owever, no significant change was observed with mullet, which had a low excreta {N}:{P} molar ratio, suggesting that the growth of microbial plankton was limited by the availability of {N}. {O}ur results demonstrate that nutrient excretion by fish affects the microbial food web through a species-specific bottom-up effect on the total abundance and community structure of the phytoplankton, bacterioplankton, and microzooplankton communities.},
  keywords = {{M}arine fish ; {N}utrient excretion ; {P}rotozooplankton ; {P}hytoplankton ; {B}acteria},
  booktitle = {},
  journal = {{A}quatic {M}icrobial {E}cology},
  volume = {82},
  numero = {3},
  pages = {289--298},
  ISSN = {0948-3055},
  year = {2019},
  DOI = {10.3354/ame01897},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00019868},
}