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Dolphin dies at the National Aquarium after monthslong illness

  • A dolphin jumps at the National Aquarium in Baltimore.

    Lloyd Fox / Baltimore Sun

    A dolphin jumps at the National Aquarium in Baltimore.

  • Baltimore National Aquarium staffs and volunteers are working to cure...

    CHIAKI KAWAJIRI / Baltimore Sun

    Baltimore National Aquarium staffs and volunteers are working to cure dolphin Bob's respiratory infection. Here, Leslie Larsen (LT) and Jill Natwick touch Bob to give him some affection since he is removed from other dolphins and lonsome.

  • Allison Ginsburg, Manager of Marine Mammal Training, gets in the...

    Lloyd Fox / Baltimore Sun

    Allison Ginsburg, Manager of Marine Mammal Training, gets in the water with one of the Atlantic bottlenose dolphins.

  • Tamara Leak-Jones, a three-time cancer survivor and mother, got a...

    Algerina Perna / Baltimore Sun

    Tamara Leak-Jones, a three-time cancer survivor and mother, got a surprise "dream day" today through the "The Experience Genie," who is Joshua Dawson, 34, from Montrea. One of the stops was the National Aquarium in Baltimore where she watched a dophin show and got to pet a dolphin named Chinook.

  • Visitors at the National Aquarium in Baltimore watch a pair...

    Jerry Jackson / Baltimore Sun

    Visitors at the National Aquarium in Baltimore watch a pair of dolphins play with a ball in front of the observation window Monday afternoon.

  • Dolphin trainers Leah Whetzel (LT) and Kerry Martens (RT) highlight...

    CHIAKI KAWAJIRI / Baltimore Sun

    Dolphin trainers Leah Whetzel (LT) and Kerry Martens (RT) highlight Chinook's porpoise behavior during the dolphin show at National Aquarium in Baltimore.

  • Dolphin trainer Crystal Mumaw works with Maya through the window...

    CHIAKI KAWAJIRI / Baltimore Sun

    Dolphin trainer Crystal Mumaw works with Maya through the window for an underwater behavior during the dolphin show at National Aquarium in Baltimore.

  • A dolphin at the National Aquarium in Baltimore.

    Lloyd Fox / Baltimore Sun

    A dolphin at the National Aquarium in Baltimore.

  • Dolphin trainer Kerry Martens (R) gets some help from Julia...

    Lloyd Fox / Baltimore Sun

    Dolphin trainer Kerry Martens (R) gets some help from Julia Brodowski, 8, of Macumgie, PA down near the dolphin tank.

  • Visitors can watch the training sessions at the aquarium for...

    Lloyd Fox / Baltimore Sun

    Visitors can watch the training sessions at the aquarium for free.

  • Visitors at the National Aquarium in Baltimore watch a dolphin...

    Jerry Jackson / Baltimore Sun

    Visitors at the National Aquarium in Baltimore watch a dolphin swim past the observation window Monday afternoon.

  • Caroline Trowbridge and Devon Minarik, both of Hunt Valley, kiss...

    Kim Hairston / Baltimore Sun

    Caroline Trowbridge and Devon Minarik, both of Hunt Valley, kiss as they are photographed at the National Aquarium, Baltimore, in front of the dolphin exhibit.

  • At the National Aquarium in Baltimore, Allison Ginsburg, manager of...

    Algerina Perna / Baltimore Sun

    At the National Aquarium in Baltimore, Allison Ginsburg, manager of dolphin training, feeds Spirit, one of the mothers who gave birth to a calf in spring 2011.

  • Maya, foreground, gave birth to her calf (background) this spring...

    Algerina Perna / Baltimore Sun

    Maya, foreground, gave birth to her calf (background) this spring at the National Aquarium in Baltimore.

  • A dolphin jumps out of the water Monday afternoon during...

    Jerry Jackson / Baltimore Sun

    A dolphin jumps out of the water Monday afternoon during a training session at the National Aquarium in Baltimore.

  • Two of the six female dolphins at the National Aquarium...

    Kenneth K. Lam / Baltimore Sun

    Two of the six female dolphins at the National Aquarium are pictured during their play and feed time.

  • Trainer Darlene Davis examines Shiloh, and plays with her before...

    Amy Davis / Baltimore Sun

    Trainer Darlene Davis examines Shiloh, and plays with her before taking her temperature. The National Aquarium in Baltimore announced today that two of its Atlantic bottlenose dolphins, Shiloh and Chesapeake are pregnant. They are expected to give birth in late July or August. Chesapeake, born at the Aquarium in 1992, is the daughter of Shiloh, who is about 29 and has been at the Aquarium since 1990. The veterinary staff is already providing special care, and will institute 24-hour observations in mid-July, with the help of volunteers.

  • Atlantic Bottlenose Dolphins L-R Chesapeake and Maya during a training...

    Lloyd Fox / Baltimore Sun

    Atlantic Bottlenose Dolphins L-R Chesapeake and Maya during a training session at the National Aquarium.

  • Maya (LT) and Spirit (center) show how they have adapted...

    CHIAKI KAWAJIRI / Baltimore Sun

    Maya (LT) and Spirit (center) show how they have adapted to their underwater world with their trainer Crystal Mumaw (RT) during the dolphin show at National Aquarium in Baltimore.

  • Chesapeake, one of six female dolphins at the National Aquarium,...

    Kenneth K. Lam / Baltimore Sun

    Chesapeake, one of six female dolphins at the National Aquarium, plays with a ball during play and feed time at the aquarium.

  • Spirit, who gave birth to a female calf in spring...

    Algerina Perna / Baltimore Sun

    Spirit, who gave birth to a female calf in spring 2011 at the National Aquarium in Baltimore, gets a friendly tap on her nose.

  • Each dolphin eats between 30-35 pounds of fish a day.

    Lloyd Fox / Baltimore Sun

    Each dolphin eats between 30-35 pounds of fish a day.

  • Visitors at the National Aquarium in Baltimore watch a pair...

    Jerry Jackson / Baltimore Sun

    Visitors at the National Aquarium in Baltimore watch a pair of dolphins play with a ball in front of the observation window.

  • Chinook porpoises through the air during the dolphin show at...

    CHIAKI KAWAJIRI / Baltimore Sun

    Chinook porpoises through the air during the dolphin show at National Aquarium in Baltimore.

  • Spirit (named after Sept. 11, in honor of the American...

    CHIAKI KAWAJIRI / Baltimore Sun

    Spirit (named after Sept. 11, in honor of the American spirit) jumps over a physio ball during the dolphin show at National Aquarium in Baltimore.

  • Children watching the dolphins swim at the National Aquarium in...

    Lloyd Fox / Baltimore Sun

    Children watching the dolphins swim at the National Aquarium in Baltimore.

  • Beth Manning, Senior Marine Mammal Trainer, at National Aquarium in...

    CHIAKI KAWAJIRI / Baltimore Sun

    Beth Manning, Senior Marine Mammal Trainer, at National Aquarium in Baltimore, has been working with dolphins for nine years. This one is Nani.

  • Jade is balancing the globe on her rostrum, a crowd...

    CHIAKI KAWAJIRI / Baltimore Sun

    Jade is balancing the globe on her rostrum, a crowd favorite, during the dolphin show at National Aquarium in Baltimore.

  • A dolphin jumps out of the water Monday afternoon during...

    Jerry Jackson / Baltimore Sun

    A dolphin jumps out of the water Monday afternoon during a training session at the National Aquarium in Baltimore.

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One of the National Aquarium’s seven dolphins, named Maya, died Sunday evening after prolonged illness, according to an aquarium news release.

“Maya was a cherished member of our National Aquarium family, and we are heartbroken to lose her,” said National Aquarium Chief Executive Officer John Racanelli in Monday’s release. “We have been deeply moved by the outpouring of support from the community and appreciate everyone’s compassion during this difficult time for our staff, our dolphins and our guests.”

Veterinary staff determined in mid-April that the dolphin was experiencing liver problems and inflammation, which contributed to problems with her digestive system.

At that time, staff conducted a liver biopsy and consulted with marine mammal experts around the country to treat her.

But as of Saturday, the Atlantic bottlenose dolphin, which was born at the aquarium in 2001, was unable to keep food down, and her breathing was elevated.

Maya was euthanized on Sunday. She was the third-oldest dolphin at the aquarium’s colony.

The death comes during an uncertain time for aquarium’s dolphin population. In the summer of 2016, the aquarium announced plans to construct a seaside sanctuary for the dolphins.

“Emerging science and consultation with experts have convinced us that dolphins do indeed thrive when they can form social groups, have opportunities to express natural behaviors and live in a habitat as similar as possible to that for which nature so superbly designed them,” Racanelli wrote in a Baltimore Sun editorial at the time.

But in April officials said climate change had complicated their search for a suitable location for the refuge, delaying the move beyond its original 2020 target.

In the meantime, aquarium staff is focused on keeping their six remaining dolphins healthy for the move, now pegged for the end of 2021.

“As you can imagine, our team is still reeling from her passing and currently all hands are on deck to care for the other dolphins that remain in our care,” wrote an aquarium spokesman in an email.

Staff at the Johns Hopkins School of Medicine will complete a necropsy to determine the underlying cause of her illness, the release stated.