publication . Other literature type . 2009

Life-history characteristics of the large Amazonian migratory catfish Brachyplatystoma rousseauxii in the Iquitos region, Peru

Garcia Vasquez, A.; Alonso, J.C.; Carvajal, F.; Moreau, J.; Nunez, Jesus; Renno, Jean-François; Tello, S.; Montreuil, V.; Duponchelle, Fabrice;
Open Access
  • Published: 01 Jan 2009
  • Country: Sri Lanka
Abstract
The main life-history traits of the dorado Brachyplatystoma rousseauxii, a large Amazonian catfish undertaking the largest migration known for a freshwater fish species (from the nursery area in the estuary of the Amazon to the breeding zones in the head waters of the western Amazon basin close to the Andes), were determined from a 5 year sampling of >15 000 specimens in the Peruvian Amazon. The breeding season occurred during the falling and low-water periods, which is hypothesized to be an adaptation to maximize the chances of young stages to reach the estuary. The size at first sexual maturity was slightly larger for females than males, c. 91 and 83 cm standa...
Subjects
free text keywords: breeding season, fecundity, growth, maturity, mortality
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Other literature type . 2009
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