@article{fdi:010061304, title = {{B}reeding, growth and exploitation of {B}rachyplatystoma rousseauxii {C}astelnau, 1855 in the {C}aqueta {R}iver, {C}olombia}, author = {{C}ordoba, {E}. {A}. and {L}eon, {A}. {V}. {J}. and {B}onilla-{C}astillo, {C}. {A}. and {P}etrere, {M}. and {P}elaez, {M}. and {D}uponchelle, {F}abrice}, editor = {}, language = {{ENG}}, abstract = {{T}he main life history traits of the large {A}mazonian migratory catfish {B}rachyplatystoma rousseauxii were determined in the {C}aqueta {R}iver, {C}olombia. {T}he breeding season occurred during the rising and falling water periods. {T}he size at first sexual maturity was significantly larger for females (88.5 cm {L}s) than males (81.7 cm). {B}oth males and females reproduce for the first time between their third and fourth year. {T}he growth characteristics were estimated using length frequency analyses. {F}emales grew systematically larger than males, the difference being about 9% after the first year and increasing to 12% for ten years old individuals. {M}ortality estimates, calculated from different models, some taking into account the effect of body size, ranged from 0.32 to 0.42 year(-1) for natural mortality and from 0.72 to 0.82 year(-1) for fishing mortality, indicating high fishing pressure in the {C}aqueta {R}iver, higher than in the {P}eruvian {A}mazon. {R}esulting exploitation rates (0.63 to 0.72) pointed towards overexploitation of the species in the {C}aqueta. {T}he situation calls for a concerted management between the countries sharing this resource ({B}razil, {C}olombia, and {P}eru) and potential solutions are proposed.}, keywords = {{A}mazonia ; {D}orado ; {L}ife history ; {M}igratory catfish ; {P}imelodidae ; {COLOMBIE} ; {AMAZONIE}}, booktitle = {}, journal = {{N}eotropical {I}chthyology}, volume = {11}, numero = {3}, pages = {637--647}, ISSN = {1679-6225}, year = {2013}, URL = {https://www.documentation.ird.fr/hor/fdi:010061304}, }