Not all algal blooms are harmful. However, all naturally occurring blooms of cyanobacteria have the potential to be toxic. Blooms can appear and disappear within days or even hours, and be non-toxic one day and producing toxins the next. At the mild end of the spectrum, some blooms cause skin irritation if you swim in the water. By ingesting these toxins, health concerns may include:
- Nausea
- Vomiting
- Diarrhea
- Numbness of mouth and extremities
- Headache
- Dizziness
- Confusion
- Short-term memory deficits and motor weakness
- Respiratory problems
- Paralysis of the muscles of the chest and abdomen possibly leading to death
They had us at "skin irritation". We weren't taking any chances and decided to stay out of the water.
We saw Pink-Striped Oakworm Moth caterpillars.
But we wouldn't change a thing.