As ocean temps rise, so does risk for shellfish poisoning

It’s not unusual for people to have shellfish allergies, but even non-allergic people can get sick from eating shellfish, thanks to contamination that occurs when the filter-feeding sea creatures take in toxins in warm ocean waters. Now, research is showing that the algae and bacteria that cause these toxins are becoming more prevalent as sea […]

Researchers: Warmer oceans threaten clam digging

Spring has sprung, and with it come the seasonal activities we know and love: gardening, outdoor walks, picnics at the park and, for plenty of Pacific Northwest residents, clam digging. However, researchers have identified a big factor that may heighten the risks of this popular activity.

After analyzing two decades of climate data from the […]

Study links warming oceans to rise in dangerous shellfish toxin

A recent study has discovered a new link between warming ocean conditions and a dangerous neurotoxin, known as domoic acid, which can accumulate in species like Dungeness crab, clams, mussels and anchovy. This spells trouble for fisherman, whose livelihood may be on the line, as well as seafood lovers who could soon see a long-term […]

Deadly neurotoxin causes recall of Maine’s mussels and clams

The deadly neurotoxin believed to infect hundreds of birds in 1961 and inspire the Alfred Hitchcock movie “The Birds,” has been reported by Maine’s Department of Marine Resources and has resulted in the recall of mussels and clams harvested within the state.

Known as domoic acid, this marine biotoxin is secreted by algal blooms, and […]

Domoic acid continues to hamper west coast shellfish economy

After a difficult summer for shellfish, levels of domoic acid (DA) are slowly starting to decrease after peaking in late spring and early summer. Linked to an algae bloom along the U.S. west coast, the high levels of the toxin caused some of the largest shellfish closures ever, a recent article states.

While the closures […]

Biotoxin outbreak impacting California coast sea life

The spread of algal blooms along stretches of the California’s Central Coast has produced an outbreak of a deadly biotoxin, and resulted in the deaths of large numbers of marine animals.

Scientists have identified the marine biotoxin domoic acid as the culprit in the outbreak. Domoic acid is produced by algae and accumulates in shellfish […]

Neurotoxins such as domoic acid can disrupt salmon brain activity

There’s something in the water.

And it’s making salmon go crazy.

OK, maybe not crazy, but new research shows salmon that have been exposed to algal neurotoxins such as domoic acid, saxitoxin and brevetoxin exhibit changes in their behavior and brain activity.

The study, published online June 25 in Science Daily, also found small doses […]