Global warming has been affecting different members of the environment, including shellfish. A new study has revealed that the warming waters could trigger the rise of toxins in shellfish, which is a health hazard for humans.
Researchers recently discovered harmful algae toxins in Alaskan whales, walruses, sea lions, seals, porpoises and sea otters. Their findings represent a staggering northward expansion of such toxins, although (for what it is worth) they have not yet reached concentrations harmful to human health.
Californian sea lions exposed to lethal doses of an algal toxin known as domoic acid are suffering from brain damage and memory loss.
Dangerous levels of domoic acid, a naturally occurring neurotoxin from algal blooms, have been detected in Dungeness and rock crabs caught along the coast of California.