No. Most algae blooms are simple green or string algae and not harmful, but some blooms are actually a type of cyanobacteria that have the ability to produce toxins. When this toxic cyanobacteria (aka blue-green algae) is active, scientists and policy makers refer to them as harmful algal blooms (HABs).
While many factors contribute to HABs forming, the primary reasons include:
HABs do occur naturally, but the frequency and severity is heavily influenced by human kind.
HABs typically occur in the late summer and early fall when temperatures are highest and water levels are lowest. HABs are most likely to appear during periods of warm, sunny and calm conditions directly following a rain storm.
As rain water passes through our storm drains and back into the water ways, it carries sewage & waste water discharges as well as the residuals from fertilizers, animal manure, and failing septic tanks. Add in a sunny day and slow water and you have the perfect recipe for an HAB!
Unfortunately, it is impossible to tell visually, by taste or odor whether a bloom is toxic. In cases of extreme blooms, local agencies will typically place signs up around the waterway, but you should always check with your local, State and Federal agencies for a forecast of HABs and to learn about active blooms to stay away from.
In cases when toxin concentrations are unknown pet owners should err on the side of caution and keep their dogs out of the water when suspicious looking blooms appear. Only after water samples have been taken and analyzed can we be certain of the presence of toxins.
Call the veterinarian immediately! Unfortunately there is no antidote for the toxins produced by blue-green algae or cyanobacteria. Call the Pet Poison Helpline (800-213-6680) or the ASPCA (888-426-4435) for immediate help. Consultation fees apply.
Since death generally follows within days as a result of liver failure, treat every bloom as if it has toxins. Dogs are especially vulnerable to these waters because of their innate behavior to lap around a body of water. They are also attracted to the smell, which makes leashing very important.
Hunting dogs are especially predisposed due to increased exposure outdoors.
A pet is like part of the family, especially a dog. Losing a pet can feel like losing a child or a long time companion. Keeping them safe is a priority, so if you live on a big property be careful of where you let your dog/pets play.
Keep your dog leashed while around suspected waters. If you use fertilizers, try to keep the area where they are used contained. To be safe, only let your dog/pets drink clean tap water.
If possible keep your dog on a leash near shorelines, don’t let dogs wade, drink the water or eat/walk in beach debris. If you dog goes in the water remove them immediately. Don’t let them lick their fur or paws after getting out of the water until you can thoroughly rinse/wash them from a safe freshwater source.
“It is likely that the number of deaths is much higher than the 200+ that have been reported. Due to the wide range of symptoms that can be caused by numerous other factors, many might believe there was another cause of toxicity.” Source
“The dog owner reported that after playing in the water, and probably drinking some, it started to exhibit strange behavior within 45 minutes including lethargy and vomiting. The dog passed away shortly after that.” Source
“Our message to dog owners and to parents is when in doubt, stay out,” Skuta said. “If you see a crummy situation on a lake, even if it’s not the obvious pea-soup paint kind of look, better safe than sorry.” Source
If you ingest water, fish or blue-green algal products containing elevated levels of toxins, you may experience headaches, fever, diarrhea, abdominal pain, nausea and vomiting.
If you swim in contaminated water, you may get itchy and irritated eyes and skin, as well as other hay fever-like allergic reactions. If you suspect you might have come into contact with cyanobacterial toxins and are experiencing any of these symptoms, rinse any scum off your body and consult your physician immediately. These FAQs are based on Senior Educator at MSU Stephen Stewart
Toxic Algae may not seem like a risk but it can happen devastatingly quick. Check for signs, proceed with caution near polluted water, & make sure to inform your friends of this silent killer.
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