Core Insight: A Labrador‑retriever trained by New Zealand’s Ministry for Primary Industries has been named 2026 Animal of the Year after locating and removing the invasive seaweed known as “sea vomit.”
Key Highlight: The dog identified 1,842 kelp mats across 27 beaches, cutting projected shoreline damage by 38%.
Actionable Advice: Coastal agencies should consider scent‑detection canines as a cost‑effective supplement to mechanical removal.
AUCKLAND, NEW ZEALAND, OCT 15 (Reuters) – A Labrador‑retriever named Kaimana has been crowned 2026 Animal of the Year after his work hunting the invasive brown algae Caulerpa taxifolia, colloquially dubbed “sea vomit.” The Ministry for Primary Industries announced the award Thursday, citing the dog’s 1,842 detections that prevented an estimated NZ$12 million in ecological damage.
Sea vomit dog earns national accolade
Kaimana, a five‑year‑old field‑trained Labrador, was paired with marine biologists in 2024 to sniff out *Caulerpa* mats that float ashore after storms. Using a scent‑profile developed from laboratory samples, the canine can locate a 0.5‑meter patch from up to 30 meters away, outperforming human divers who average a 0.2‑meter detection radius.
Training methodology and performance data
| Parameter / Feature | Details / Specs | Recommendation |
|---------------------|-----------------|----------------|
| Scent detection range | Up to 30 m in wind‑free conditions | Deploy canines for initial surveys before divers arrive |
| Success rate | 94 % of identified patches confirmed by lab analysis | Use as primary scouting tool |
| Cost per hectare surveyed | NZ$45 vs NZ$210 for mechanical removal | Allocate budget to canine units for early‑stage interventions |
Background on the invasive “sea vomit”
*Caulerpa taxifolia* entered New Zealand waters via ballast water in 2009. Its rapid growth smothers native kelp, reduces biodiversity, and creates unsightly brown slicks that deter tourism. Traditional control relies on manual removal and herbicide application, both of which have limited reach and high environmental cost.
Timeline of Kaimana’s deployment
- **Jan 2024:** Pilot program launched in Northland.
- **Mar 2024:** First successful detection of a 1.2‑m kelp mat.
- **Jun 2025:** Expanded to 12 coastal districts after 78 % reduction in repeat infestations.
- **Oct 2026:** Award ceremony in Wellington; Ministry announces nationwide rollout.
Future outlook and official statements
Minister for Oceans, Dr. Hana Rangi, said the government will fund three additional canine units by 2027, aiming to cut *Caulerpa* coverage by half within five years. Researchers at the University of Auckland plan to refine the scent‑signature to include other marine invaders, such as the Pacific oyster.
Frequently Asked Questions
How does a dog detect sea vomit algae?
The dog is trained to recognize volatile organic compounds released by the algae’s tissue, similar to how detection dogs locate explosives.
Can other countries adopt the sea vomit dog model?
Yes; the training protocol is documented and can be transferred to any coastal agency with access to certified scent‑training facilities.
What are the limitations of using dogs for marine invasive species?
Canine detection is weather‑dependent; high winds or heavy rain reduce scent dispersion and may lower success rates.
iGB News Newsletters
Daily Briefing
A curated digest of top news and in-depth analysis, sent straight to your inbox.
Want unlimited access to investigative journalism and expert reports?
Join the conversation. Be respectful and adhere to our community guidelines.