Mangroves are an important protection against climate change, with one acre (4,000sq m) of mangrove forest absorbing nearly the same amount of carbon dioxide as an acre of Amazon rainforest.
The forests also protect coastlines from eroding, as intense storms grow more frequent.
“Conservation as a story, is a complicated one,” said another of the judges, Morgan Heim.
“Photography has the ability to help us receive and feel close to those stories no matter our language. Every time I look at this kind of photography, I think, there’s still hope.”
Fellow judge Christian Ziegler added: “[In the competition] were many fascinating stories about life in the mangroves, ranging from scientific insights to restoration of the ecosystem and the difficult conditions people face.”
Here are a selection of winning images from seven competition categories, with descriptions by the photographers.
Men, women and children, wearing sarongs and traditional headgear, collect mud from a mangrove forest in Kedonganan village, just outside the town of Denpasar in Bali, Indonesia.
They cover themselves as part of a purification ritual called Mebuug Buugan, where people pray for gratitude and earth’s fertility.
The Sundarbans archipelago spans the borders of India and Bangladesh… [and] is known for its rich forest resources, which locals rely on for income.
But rampant deforestation coupled with worsening storms has intensified food and water scarcity, diminished agriculture productivity and soil quality, and turned local communities into climate refugees.