Water quality could also have contributed to the deaths of the three deceased sharks, he added.
“The average Joe doesn’t have a pool full of sharks as pets, so maintaining animals of that size and species requires a considerable need for expertise,” Burgess told The Dodo. “With a crowded tank and things like improper filtration or temperature control, quality of life can go down by the minute. If that was the case here, these animals were essentially living in a sewer.”
Details about the case — including why the man was keeping the sharks — are limited as the investigation is ongoing. After their rescue, the sharks were taken to Long Island Aquarium to recover. The aquarium shared an update on Twitter about the sharks back in September, showing the animals in a quarantine tank while they were being nursed back to health.
“They are most likely all between 1 and 3 years old,” Darlene Puntillo, a spokeswoman for the aquarium, told the Huffington Post. “They were not in good health due to the conditions in which they were found and the transport they initially went through.”