Ivona Jagar.: Sexual maturity in female bottlenose dolphins (Tursiops truncatus) from the Adriatic Sea. Original scientific student paper. Faculty of Veterinary Medicine University of Zagreb. Zagreb. 2005.



Sexual maturity was studied in 30 female bottlenose dolphins (Tursiops truncatus) from Adriatic Sea. As sexually mature we defined only females who had at least one ovulation scar on the ovaries. We proved that female bottlenose dolphins from Adriatic sea reach sexual maturity at the age between 7 and 12 years what is earlier than in other populations of bottlenose dolphins and upon reaching the overall length over 246 cm. We proved that the left ovary is more active then the right ovary and that it is significantly bigger (p=0.0004) and has more scars (p=0.0012).