Conservation
Oreti Beach dolphin death highlights a land-to-sea wildlife threat
DOC has confirmed toxoplasmosis killed a pregnant Hector’s dolphin found at Oreti Beach, highlighting a threat carried from land into coastal waters.
DOC has confirmed toxoplasmosis caused the death of a pregnant Hector’s dolphin found at Oreti Beach on 20 August. The finding was announced on 22 September after examination of the animal.
What DOC found
The dolphin was carrying a male calf. Toxoplasmosis is caused by a parasite whose eggs can enter waterways through contaminated soil and runoff, eventually reaching the sea. Cats are the host in which the parasite produces these eggs.
Why it matters for coastal wildlife
Hector’s dolphins live in nearshore waters, linking their health with what washes off the land. DOC says examination of recovered animals helps researchers understand the threats affecting the species.
If you find a stranded or dead marine mammal
Report it promptly to DOC on 0800 362 468. A timely report can help DOC recover an animal for examination.
The cover is an archive photograph of a Hector’s dolphin, not the animal found at Oreti Beach.
Sources and photo credits
Source checks: 29 September 2026.
Photo: Cephalorhynchus hectori 358055594.jpg — Julien Renoult. CC BY 4.0. Resized for display.
