"He Was Found Deceased," Says Controversial Florida Park After Another Death

Florida’s most controversial theme park has once again made the headlines after another death.

The practice of keeping marine mammals in captivity has faced mounting scrutiny since the release of Blackfish (2013), which focused on orca captivity at SeaWorld. Public sentiment shifted sharply, with activists and animal welfare groups challenging the ethics and safety of housing intelligent, wide-ranging marine species in confined spaces for entertainment.

Miami Seaquarium, in particular, has been the subject of sustained controversy in recent years. The park struggled to maintain positive public perception amid repeated welfare concerns, failed inspection reports, and ongoing criticism from marine advocacy organizations.

The Dolphin Company, which operated the facility, faced significant financial challenges while attempting to address the park’s aging infrastructure and animal care standards. Amid disputes with Miami-Dade County over lease compliance and welfare conditions – plus the Dolphin Company’s bankruptcy filing earlier this year – the park ultimately ceased public operations in October.

The facility’s closure came after years of high-profile scrutiny, most notably surrounding the late orca Tokitae (also known as Lolita), who died just months after plans were unveiled to relocate her to an ocean pen. Other marine mammals at the park were also the subject of reports detailing stress, illness, and reduced lifespans in captivity.

Over the decades, several dolphins (including Bimini, who passed in September, and a dolphin who a trainer claimed died by suicide), sea lions (such as Bud, who was likely suffering from kidney disease), and other marine mammals have died at Miami Seaquarium. Animal care advocates have long pointed to these losses as evidence of ongoing systemic welfare issues, while the park has historically maintained that its veterinary and care teams provided attentive, professional treatment.

Dolphin Death Reported at Miami Seaquarium

This week, another death has been confirmed at the park.

MS Leisure Company shared the news of Boomer’s passing with “great sadness” in a press statement. The bottlenose dolphin, originally from Marineland and later Dolphin Connection, was moved to Miami Seaquarium after veterinary staff determined he would benefit from a more closely supervised social environment and additional care support.

Boomer had a long-standing history of chronic health challenges, including appetite irregularities, persistent inflammation, and recurring infections. According to the park, his veterinary and animal care teams conducted ongoing diagnostic evaluations, nutritional adjustments, antimicrobial therapy, and supportive treatment as they monitored his condition closely over time.

In recent weeks, staff observed weight loss and administered supplemental feeding under daily supervision. “These efforts initially appeared to show success as Boomer began to regain weight and behave normally. However, on the morning of November 2, he was found deceased.” A necropsy will be performed to determine the cause of death.

Miami Seaquarium described Boomer as a “remarkable dolphin” deeply valued by his trainers and veterinary staff. The Company expressed heartbreak over his passing and emphasized its commitment to providing the highest standard of care to every animal, reaffirming that each case informs future welfare practices.

The Dolphin Company extended appreciation to the veterinary professionals, trainers, and caregivers who worked with Boomer, as well as to community members who have offered support during the loss.

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