@article{fdi:010083843,
  title = {{F}ate of commercial pellets and role of natural productivity in giant gourami ponds using stable isotope analyses},
  author = {{P}ouil, {S}imon and {M}ortillaro, {J}. {M}. and {S}amsudin, {R}. and {C}aruso, {D}omenico and {K}ristanto, {A}. {H}. and {S}lembrouck, {J}acques},
  editor = {},
  language = {{ENG}},
  abstract = {{A} better understanding of the fate of commercial pellets and natural resources in semi-intensive aquaculture can help to reduce environmental impacts as well as the overall costs of production in pond production systems. {H}owever, in these mixed systems, trophic structures can be complex. {H}ere, we investigated the trophic web structure in {I}ndonesian giant gourami ({O}sphronemus goramy) aquaculture ponds based on the analysis of the values of stable carbon and nitrogen isotopes (delta {C}-13 and delta {N}-15) in 10 pond components of different trophic levels (i.e. plankton of different sizes, macroinvertebrates, periphyton, fish, sediment and commercial pellets). {I}sotope niche spaces (standard ellipse areas) were calculated for giant gourami at the beginning (month 0), the middle (month 3) and the end (month 5) of the trial. {O}ur results showed that commercial pellets were the primary diet source for giant gourami throughout the 152-day trial in ponds. {N}evertheless, differences in {N}-15 and trophic niche sizes at month 0, month 3 and month 5 suggested slight changes in the giant gourami diet during the trial. {A}ltogether, our results highlight that, in a typical omnivorous species reared in semi-intensive pond conditions, the endogenous resources of the pond are barely utilized and the diet is mainly based on commercial pellets. {S}uch findings highlight the need of optimizing the use of both natural pond resources and commercial pellets.},
  keywords = {{F}ormulated feed ; {G}iant gourami ; {I}ntensification ; {S}emi-intensive aquaculture ; {S}table isotopes ; {INDONESIE} ; {JAVA}},
  booktitle = {},
  journal = {{A}quaculture},
  volume = {547},
  numero = {},
  pages = {737484 [8 p.]},
  ISSN = {0044-8486},
  year = {2022},
  DOI = {10.1016/j.aquaculture.2021.737484},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083843},
}