Menu

Toxic Algae And Your Pets

Toxic algae, also known as blue green algae, is a health risk to both people and animals. The cyanobacteria which make up the algae produce dangerous toxins which are harmful when ingested. Dogs especially are intrigued by the musty smell of the algae and unfortunately whilst investigating it can lick and ingest the toxins. The toxins have both hepatotoxic (liver) and neurotoxic (brain) effects. If you are concerned about your pet do not hesitate to contact us on 03 325 4444.

Toxic algae grow on the bottom of riverbeds, it appears as thick dark brown or black mats that have a slimy or velvety texture and musty smell. When it blooms, it can make water look cloudy, discoloured, or like it has small globules in it. The main signs to look out for in your pets are:

  • Rigidity and muscle tremors
  • Anxiety
  • Excess salivation and tear production
  • Blood in faeces, vomit and urine
  • Weakness and collapse
  • In some cases, death can occur within hours

 

Toxic algae has been found throughout Canterbury’s waterways. These rivers are known to have toxic algae blooms at times: Ōtākaro/Avon River, Rakahuri/Ashley River, Waikirikiri/Selwyn River, Opihi River, Otaio River, Pareora River, Temuka River, Waiau River, Waipara River, Waihao River, Waihi River, Hae Hae Te Moana River, Waimakariri River, Leader River and Waitohi River. The LAWA website has a monitoring system which provides up to date information on water contamination: LAWA: Can I Swim Here.

 

- Dáire O'Driscoll, BSc MVB

Selwyn-Rakaia Vets Ltd

Selwyn Rakaia Vets Ltd is a locally owned veterinary business servicing predominantly dairy farms in Canterbury. Our team of staff include veterinarians, rural animal technicians, vet nurses and administration staff.