Controlled unassisted breeding of captive Indo-Pacific bottlenose dolphins, Tursiops aduncus, using ultrasonography

  • Published source details Brook F.M. & Kinoshita R.E. (2005) Controlled unassisted breeding of captive Indo-Pacific bottlenose dolphins, Tursiops aduncus, using ultrasonography. Aquatic Mammals, 31, 89-95.


This study is summarised as evidence for the following.

Action Category

Breed marine and freshwater mammals in captivity

Action Link
Marine and Freshwater Mammal Conservation
  1. Breed marine and freshwater mammals in captivity

    A study in 1993–2003 at a marine park in Hong Kong (Brook & Kinoshita 2005) found that during a controlled captive-breeding programme, four of six female Indo-Pacific dolphins Tursiops aduncus successfully conceived and gave birth to nine calves, seven of which survived. Four of six female dolphins successfully conceived in captivity and gave birth to a total of nine live-born calves (1–3 calves each). One other female mated but did not conceive, and one female conceived but the calf was stillborn. Seven of the nine live-born calves survived (length of time not reported) and were considered healthy. The other two calves died within 1–3 days due to lung infections or trauma caused by the mother. On 11 occasions in 1993–2003, one of six ovulating female dolphins (aged 10–25 years) was placed in a pool with one of five male dolphins (aged 10–31 years). Male and female dolphins were housed separately at all other times. Ultrasound was used to predict the timing of ovulation and to monitor each of the 10 pregnancies during gestation periods of 349–382 days.

    (Summarised by: Anna Berthinussen)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 19

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust