Recreational fishermen along the West coast faced an unexpected shellfish collection ban over the weekend of March 29-30 due to a harmful algal bloom producing dangerous toxins. This ban, affecting several coastal regions, prohibits all shellfish-related activities to protect public health. While some areas remain open for fishing, the Regional Health Agency warns of severe neurological risks from contaminated shellfish. Safety measures are in place, with increased monitoring by the National Society for Sea Rescue.
Unexpected Shellfish Collection Ban
In a surprising turn of events, recreational fishermen were eagerly anticipating a weekend of beachcombing along the West coast on March 29 and 30, coinciding with high tides (coefficients 109 and 114). However, prefectures from various coastal regions, including Loire-Atlantique, imposed a sudden ban on shellfish collection and sales by professionals, effective from Thursday evening.
On March 28, La Bernerie-en-Retz (Loire-Atlantique) saw the installation of fishing prohibition signs. Many were caught off guard by this announcement, as shown in a recent report. “Oh no, we didn’t know,” expressed one surprised individual approached by a public safety officer. Despite the patrols in place, some fishermen were unaware and continued their activities. “I didn’t know. If we had known, we wouldn’t have come,” admitted another fisherman. “I guess I’ll just leave,” sighed a third. The public safety officer emphasized that warnings were posted at all access points to the beaches, but not everyone heeded the advice. Violators may face fines for their actions.
Reasons Behind the Ban
So, what prompted this ban? According to the prefecture of Loire-Atlantique, it stems from a rapid surge of the pseudo-nitzschia australis algae, which produces an amnesic toxin that poses serious neurological risks for those consuming contaminated shellfish. The order prohibits fishing, collection, and any activities related to the transport, storage, and commercialization of shellfish intended for human consumption along the coastline until further notice.
Fishermen in nearby Vendée are also affected by similar restrictions, which have been implemented in areas such as Bourgneuf Bay, parts of Noirmoutier Island, and Yeu Island, as well as regions in Morbihan and Finistère, including the bays of Concarneau and Douarnenez.
The Regional Health Agency of Pays de la Loire warns that consuming contaminated shellfish can lead to gastrointestinal symptoms followed by severe neurological issues, including disorientation, confusion, memory loss, convulsions, and even coma, which may result in death. Symptoms can manifest within 15 minutes to 48 hours post-consumption. Importantly, the toxins produced by the pseudo-nitzschia australis algae remain unaffected by cooking, as cautioned by the agency.
However, not all coastal areas are under this ban. In North Finistère, for instance, fishing remains permitted. “We’re lucky to be here rather than there,” remarked one fisherman. “There’s still plenty to catch, like shrimp and clams, especially with the nice weather.” Yet, with tide coefficients hitting 114 in the coming days, caution is advised, and fishermen are encouraged to stay close to shore.
The National Society for Sea Rescue (SNSM) is on high alert, particularly in Trégastel, Côtes-d’Armor. “We leave before things get risky, monitoring the sensitive islets where fishermen and walkers might be caught off guard by the tide,” explained a volunteer. “It’s crucial for us to be present in case of emergencies.” For safety concerns, the emergency contact number is 196.