At an average length of 154.8 and 159.9cm respectively, male and female Burmeister porpoises reach sexual maturity. Reproduction has not been extensively studied in this species; however, a pregnant female with a near term fetus was found off the coast of Uruguay in late February. This observation along with other collected specimens have lead reasearchers to believe that the reproductive season occurs during the same period throughout this family with mating from June to September, calving in May through August, and gestation lasting about 10 months. At birth, calves generally have a length of at least 44cm.
Breeding season: Mating occurs from June to September
Average gestation period: 10 months.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); viviparous