Heartwarming moment scuba divers rescue a shark with a hook stuck in its mouth and pinned to the seabed by broken fishing line

• Scuba divers discover a shark stuck to a fishing line in Mornington Peninsula VIC
• Footage shows the divers struggling to release the Port Jackson shark
• Eventually the shark was freed from the tangled line and slowly swam offHeartbreaking video shows the moment scuba divers rescue a shark that was trapped by a fishing line. 

  In footage recorded by scuba diver Jules Casey, the Port Jackson shark is lying limp on a seabed with a hook in its mouth at Flinders Pier in the Mornington Peninsula, Victoria.

  When the diver picked up the shark to inspect the damage, it flailed around to try and escape the line which was pinning it to the ocean floor.

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  Scuba divers discovered a Port Jackson shark stuck to a loose fishing line in Port Phillip Bay

  As the rescuer struggled to hold the shark still, fellow diver PT Hirschfield swam over and unsuccessfully tried to cut the line.Ms Casey later wrote on Instagram that she took the shark to a pier and asked a fisherman to break the line. Eventually the video shows the divers remove the thick hook from the shark's mouth and watch as it slowly swam away. 

  Ms Casey told the Daily Mail while she doesn't know why the line broke, 'the small amount of trailing line was enough to tangle in the weeds pinning the shark to the seabed and ensuring a slow death of starvation if we hadn't helped her.'

  'You could see rust marks under her mouth so she may have been there for a while,' said the photographer.  

  

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  The divers struggled to release the shark (pictured), asking a fisherman for help at a pier

  'This little girl went through an extremely stressful time but she was strong and hopefully will fully recover from her near-death experience,' Ms Casey wrote on her instagram post.  

  Lost and discarded fishing gear contributes to a lot of marine life death, according to the World Wildlife Fund (WWF). 

  'Ghost fishing gear is the deadliest form of marine plastic,' the WWF says on its website. 

  Fishing lines and other discarded gear kills sea animals slowly and painfully through suffocation and starvation. 

  

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  The Port Jackson shark was let free and swum away slowly after being rescued by the divers