Toxin Alert Kits

Yes. The co-occurrence of multiple harmful algae species is a documented scientific phenomenon. Because different toxin producing organisms—such as Alexandrium (PSP) and Pseudo-nitzschia (ASP)—can thrive under similar environmental conditions, it is possible for shellfish to accumulate multiple distinct biotoxin classes simultaneously. This complexity presents a significant challenge for risk management, as a negative test result for one toxin does not guarantee the absence of others. The Toxin Alert platform addresses this by offering a modular point of care solution, allowing operators to run targeted diagnostic tests for concurrent threats to ensure comprehensive safety.

Shellfish tissue is a complex “matrix” containing fats, proteins, and enzymes that can interfere with standard chemical analyses. This is often why lab results take so long, the sample requires extensive cleaning. Our testing devices utilize a proprietary extraction method designed to handle these complex biological matrices. This allows for the accurate detection of naturally occurring toxins in everything from mussels oysters to butter clams without the interference that causes false positives in less advanced point of care tests.

No. It is a common myth that “wild” or “organic” implies safety from these toxins. Marine biotoxins are naturally occurring compounds produced by algal blooms, not man-made pollutants. They affect wild and farmed beds equally. Whether you harvest mussels or oysters from a pristine remote bay or a commercial farm, the risk of shellfish contamination is determined solely by the presence of toxin producing algae in the water. Only rigorous monitoring using diagnostic tests ensures the product is safe to eat.

While depuration is highly effective for flushing out bacterial pathogens like E. coli, it is generally ineffective for marine biotoxins. Toxins like domoic acid and saxitoxin bind tightly to the tissue of mussels and oysters. The natural flushing process for these chemical compounds is extremely slow—taking weeks or even months depending on the species. Once shellfish contamination occurs, the product generally cannot be salvaged for immediate market, making early detection via diagnostic tests critical to avoiding economic losses.

Not necessarily. There is often a “lag time” between a bloom and the toxicity of the shellfish. Clams, mussels, and scallops are efficient filter feeders that can retain high levels of toxins in their digestive glands long after the harmful algae have disappeared from the water column. Furthermore, some algae can be toxin producing even at low cell densities. Relying solely on water monitoring can lead to a false sense of security; only direct testing of the harvest shellfish meat provides a definitive test result for safety.

While final regulatory certification typically requires confirmatory lab analysis, our testing devices serve as an essential operational safeguard. By using a rapid test to screen harvest shellfish batches before they leave the dock or farm, producers can identify high levels of toxicity immediately. This “screen and verify” approach prevents costly recalls, protects your brand reputation, and adds an extra layer of security for public health beyond the standard regulatory minimums.

Scientific data confirms that warmer waters and changing ocean chemistry are driving an increase in the frequency and duration of harmful algal blooms. Species of harmful algae like Alexandrium and Pseudo-nitzschia are expanding into new geographic regions, meaning areas previously considered safe are now at risk of shellfish contamination. This shift makes historical data less reliable and increases the urgent need for rapid test protocols to monitor toxin levels in real-time.

Yes. PSP Alert Water and ASP Alert Water detect toxins directly in the water matrix, giving early warning during algal blooms before toxins accumulate in shellfish tissue.

They target the same analytes, saxitoxin for PSP and domoic acid for ASP, but the sample matrix and extraction differ: water versus tissue.