@article{fdi:010062834, title = {{A}n integrated closed system for fish-plankton aquaculture in {A}mazonian fresh water}, author = {{G}illes, {S}ylvain and {I}smino, {R}. and {S}anchez, {H}. and {D}avid, {F}. and {N}unez {R}odriguez, {J}esus and {D}ugu{\'e}, {R}{\'e}mi and {D}arias, {M}aria {J}ose and {R}{\¨o}mer, {U}.}, editor = {}, language = {{ENG}}, abstract = {{A} prototype of an integrated closed system for fish-plankton aquaculture was developed in {I}quitos ({P}eruvian {A}mazonia) in order to cultivate the {T}iger {C}atfish, {P}seudoplatystoma punctifer ({C}astelnau, 1855). {T}his freshwater recirculating system consisted of two linked sewage tanks with an intensive rearing unit (a cage) for {P}. punctifer placed in the first, and with a fish-plankton trophic chain replacing the filters commonly used in clear water closed systems. {D}etritivorous and zooplanktivorous fishes ({L}oricariidae and {C}ichlidae), maintained without external feeding in the sewage volume, mineralized organic matter and permitted the stabilization of the phytoplankton biomass. {W}ater exchange and organic waste discharge were not necessary. {I}n this paper we describe the processes undertaken to equilibrate this ecosystem: first the elimination of an un-adapted spiny alga, {G}olenkinia sp., whose proliferation was favored by the presence of a small rotifer, {T}richocerca sp., and second the control of this rotifer proliferation via the introduction of two cichlid species, {A}caronia nassa {H}eckel, 1840 and {S}atanoperca jurupari {H}eckel, 1840, in the sewage part. {T}his favored some development of the green algae {N}annochloris sp. and {C}hlorella sp. {A}t that time we took the opportunity to begin a 3-month rearing test of {P}. punctifer. {T}he mean specific growth rate and feed conversion ratio ({FCR}) of {P}. punctifer were 1.43 and 1.27, respectively, and the global {FCR}, including fish in the sewage part, was 1.08. {T}his system has proven to be suitable for growing {P}. punctifer juveniles out to adult, and provides several practical advantages compared with traditional recirculating clear water systems, which use a combination of mechanical and biological filters and require periodic waste removal, leading to water and organic matter losses.}, keywords = {{AQUACULTURE} ; {POISSON} {D}'{EAU} {DOUCE} ; {METHODOLOGIE} ; {RELATION} {TROPHIQUE} ; {FONCTIONNEMENT} {DE} {L}'{ECOSYSTEME} ; {PHYTOPLANCTON} ; {RECYCLAGE} {DES} {DECHETS} ; {AZOTE} ; {PRODUCTIVITE} ; {POISSON} {CHAT} ; {AMAZONIE} ; {PEROU} ; {IQUITOS}}, booktitle = {{A}groecology : integrating animals in agroecosystems}, journal = {{A}nimal : {A}n {I}nternational {J}ournal of {A}nimal {B}ioscience}, volume = {8}, numero = {8}, pages = {1319--1328}, ISSN = {1751-7311}, year = {2014}, DOI = {10.1017/{S}1751731114001165}, URL = {https://www.documentation.ird.fr/hor/fdi:010062834}, }