Scallop harvesting in Pasco County has been temporarily suspended as of August 6, 2025 due to the detection of toxin-producing algae in the waters. The Florida Fish and Wildlife Conservation Commission (FWC) reports dangerous levels of Pyrodinium bahamense and its associated saxitoxins, exceeding safety thresholds defined by the National Shellfish Sanitation Program.
This closure covers all state waters from the Hernando–Pasco county line down to the Anclote Key Lighthouse, including the Anclote River.
- The scallop season began on July 10, 2025, and was scheduled to end on August 18 .
- Now, until toxin levels drop to safe levels, no scalloping is allowed in the affected Pasco Zone.
- Other zones remain open and accessible under normal regulations.
Health Risks from Paralytic Shellfish Poisoning
Pyrodinium bahamense produces saxitoxin, a potent neurotoxin that accumulates in shellfish like scallops. If ingested, even in small amounts, it can cause paralytic shellfish poisoning (PSP)—a serious and potentially life-threatening condition. Symptoms may include numbness, dizziness, nausea, and respiratory distress. These toxins are both odorless and heat-resistant, meaning cooking doesn’t neutralize the danger.
Environmental and Economic Impact
Pasco scalloping isn’t just recreation—it’s a backbone of local tourism and community spirit. The sudden halt affects:
- Charter captains who count on the season for bookings,
- Local businesses such as gas stations, boat ramps, cleaning services, motels, and restaurants, and
- Visitors who travel from far and wide to enjoy this seasonal pursuit
Natural Patterns of Harmful Algal Blooms
Pyrodinium bahamense undergoes a life cycle where it forms dormant cysts on the seafloor. Under favorable conditions—like warmer temperatures or nutrient influxes—these cysts germinate, triggering blooms that release toxins into the water. These blooms naturally arise, but scientists are studying how environmental changes influence their frequency and intensity.
Looking Ahead: Signs of Reopening
FWC continues routine shellfish testing. The scallop season in Pasco may resume or even be extended once toxin levels return below the safety threshold. In 2024, a similar closure occurred mid-season—scalloping resumed on August 28 and continued through late September when conditions improved.
What You Can Do
| Tip | Description |
| Stay Informed | Visit FWC’s site for live updates on toxin levels and zone reopenings. |
| Explore Other Zones | Counties like Hernando and Citrus remain open—travel directly through Pasco to scallop there. |
| Support Local | Businesses still benefit from visitors doing boating, fishing, or staying locally—even if scalloping is off. |
| Safe to Swim, Just Not Eat | The toxin doesn’t pose a risk to swimmers, but avoid consuming any scallops or shellfish from closed areas. |