WINNERS GALLERY

"When searching for whales in the open ocean we always inspect islands of flotsam as they can be interesting wildlife aggregators," says photographer Simon Lorenz. "This large ghostnet island was a death trap for an Olive Ridley sea turtle which we found entangled and struggling. She still looked healthy and strong so, when approaching her we had to be careful not to aggravate her. Getting her disentangled took a machete and more than 30 minutes of hard work. When all the netting was removed we checked the turtle over and sent her on her way."