A young female dolphin found stranded on the north shore of Prince Edward Island died from a severe parasite infestation [1].
The case highlights how internal parasites can compromise the health of marine mammals, leading to disorientation and fatal strandings in coastal waters.
The animal was discovered at Blooming Point Beach after a call was received regarding the stranding on Oct. 10, 2025 [1]. Following the discovery, officials conducted a necropsy to determine the cause of death [1].
Medical examiners said the dolphin suffered from severe pneumonia [1]. This condition was caused by a heavy infestation of lungworms and ear flukes, which are types of parasitic flatworms [1].
Researchers said the heavy parasite load likely caused the dolphin to become disoriented [1]. This disorientation is a common precursor to stranding, as the animal loses the ability to navigate toward deeper waters or maintain its balance, ultimately leading to the animal washing ashore at Blooming Point Beach [1].
The findings provide specific data on the types of parasites affecting the local dolphin population in the region [1]. By identifying the presence of lungworms and ear flukes, scientists said they can better understand the health threats facing marine life along the north shore of the province [1].
“The dolphin was found stranded and necropsy revealed severe pneumonia.”
The discovery of severe lungworm and ear fluke infestations in a stranded dolphin suggests that parasitic loads can be a primary driver of marine mammal mortality and stranding events. When parasites compromise respiratory and auditory functions, the resulting disorientation makes the animals vulnerable to beaching, providing a critical data point for monitoring the overall health of the Atlantic coastal ecosystem.
