Recent research has highlighted the concerning relationship between harmful algal blooms (HABs) and whale mortality in U.S. waters. When algae flourish, they produce neurotoxins that can severely affect marine life, including whales. While acute exposure can be deadly, chronic exposure may also render whales vulnerable to ship strikes and fishing gear entanglements.
The study, published in Frontiers in Marine Science, analyzed data from the East and West Coasts, revealing that years with significant HABs often coincided with increased whale injuries and deaths attributed to human activities. This correlation was particularly strong on the Pacific Coast.
Researchers Greg Silber and Katy Silber found that neurotoxins from algae could disorient whales, making them less capable of evading dangers such as ships and fishing gear. The study suggests that improved prediction models for HABs could help mitigate these risks by informing fishing and shipping practices.
Despite the increase in whale populations, many species remain endangered, facing threats from human activities. The authors emphasize the need for further research and better monitoring to protect these majestic creatures from the compounded risks posed by HABs.