@article{fdi:010066482, title = {{D}escription of the skeletal anatomy of reared juveniles of {P}seudoplatystoma punctifer ({C}astelnau, 1855) with notes on skeletal anomalies}, author = {{E}stivals, {G}uillain and {G}arcia-{D}avila, {C}. and {D}arias, {M}aria {J}ose}, editor = {}, language = {{ENG}}, abstract = {{T}his study aimed at describing the normal bony skeleton of {P}seudoplatystomapunctifer juveniles to use as a reference when assessing the adequacy of nutritional and environmental conditions in experimental rearing during the early developmental stages and to provide a baseline for characterizing skeletal anomalies that might appear in rearing trials with this species. {F}ertilized eggs and newly hatched {P}.punctifer larvae were incubated at 27.8 +/- 0.4 degrees {C} in two 60-{L} tanks (50-{L} water volume) connected to a clear water recirculating system. {A}t 3days post fertilization - dpf (2days post hatching - dph) larvae were reared in three 40-{L} tanks (30-{L} water volume; initial n=2700 larvae per tank; 28.3 +/- 0.4 degrees {C}, p{H} 6.9 +/- 0.2, dissolved oxygen 8.2 +/- 0.5mg{L}(-1), {N}-{NO}2 0.04 +/- 0.02mg{L}(-1), {N}-{NH}4 0.14 +/- 0.05mg{L}(-1); 0{L}:24{D} photoperiod) and fed as follows: non-enriched {A}rtemia spp. nauplii from 4 to 21 dpf (3-20 dph) and a commercial compound diet from 18 dpf onwards. {P}seudoplatystomapunctifer juveniles (23.2 +/- 5.5mm standard length, {SL}, n=58) were stained with alizarin red and their skeletal structures analysed and identified under stereoscope. {P}seudoplatystomapunctifer presents an osseous skeleton typical of catfishes, consisting of a broad and depressed skull containing small eyes, 43-44 vertebrae (44 being the most frequent), a caudal fin complex composed of one epural, five hypurals, one parhypural and two hypurapophyses, dorsal and pectoral fins with spines and anal and adipose fins. {T}he observed occurrence of several skeletal anomalies indicates that the rearing conditions might have been suboptimal.}, keywords = {{AMAZONIE} ; {PEROU}}, booktitle = {{P}roceedings of the 4th {I}nternational {C}onference of the "{R}esearch {N}etwork on {A}mazonian {I}chthyofauna" ({RIIA}) {S}eptember 30 - {O}ctober 2, 2014 {C}ochabamba, {B}olivia}, journal = {{J}ournal of {A}pplied {I}chthyology}, volume = {31}, numero = {no sp{\'e}cial {S}4}, pages = {88--97}, ISSN = {0175-8659}, year = {2015}, DOI = {10.1111/jai.12983}, URL = {https://www.documentation.ird.fr/hor/fdi:010066482}, }