After the wide-open water of the estuary, the mangrove forest feels eerie and magical.
"If we lose our grasses, that area will shortly become open water, " Bourgeois said.
Beyond these patches are acres of open water that used to be storm-absorbing marshland.
This wastewater is either discharged directly into open water bodies or leaches into the subsoil.
The marathon, road cycling, triathlon, open water swimming and race walking are the events most at risk.
"The journey across 500 miles of open water strains their endurance to its limits, " the Initiative said.
The first relay runner to take the flame was Greece's Liverpool-born open water swimming champion Spyros Gianniotis.
Yet it will eventually make it much easier to operate off Alaska, with ever longer periods of open water.
Swans are protected birds and the Crown retains the right to ownership of all unmarked mute swans in open water.
The two large and nine smaller killer whales are at least 6 miles (10 kilometers) from open water, the mayor said.
Schoeffler owns a Cadillac dealership, but is worried about pollution, and about dredging and erosion that's turned native marsh into open water.
The birds need open water for drinking and to preen their feathers.
BBC: Welney welcomes wildfowl that fled harsh Arctic weather
Gold in the men's open water 10-kilometer swimming marathon in the Serpentine, the lake in London's Hyde Park, went to Tunisian Oussama Mellouli.
It offers a four-hour cruise across 60 miles of open water, an alternative to driving between Michigan and Wisconsin by way of crowded Chicago.
She began swimming in the lake three or four years ago and said competing in open water is "way quieter" than in a pool.
Once the seals are fitted with their sensors, they are taken out to open water on their own personal speed boat, the Steller Shuttle.
Communities that depend chiefly on open water sources like ponds in rural and isolated areas are especially affected, according to the World Health Organization.
The area is now more likely to become open water each summer, bringing forward the potential date when the summer sea ice will be completely gone.
The Spirit of Breydon, designed for the open water and tidal conditions of Breydon Water near Great Yarmouth, can also be used 60 miles (97km) off shore.
BBC: Breydon Water: Broads Authority launches new patrol boat
Habitats in the biosphere reserve comprise barrier islands, beach and sand dunes, salt marshes, maritime forests, tidal creeks, fresh and brackish water impoundments and open water areas.
But much of the open water where they gather has iced up and the discarded sugar beet tops they graze on in surrounding fields are frozen over.
BBC: Welney welcomes wildfowl that fled harsh Arctic weather
But one thing for sure, says Delaine, is that the open water and the weakened marsh will not be able to buffer the sting of this season's storms.
Patten, 21, is no stranger to long distance swimming, having come third in the 10km open water swim and making the final of the 800m freestyle in Beijing.
In open water races there are normally a lot of people around me and if the whole field swims slowly, in a tactical race, then I can still win.
But a report last year that an expedition had found open water at the North Pole was dismissed as largely meaningless by critics who said it happened every year.
There's little delineation between the indoor and outdoor spaces: The paved entrance path leads visitors directly through a double-height living room and out past the pool toward the open water.
As you know, yesterday BP began a controlled burn designed to remove large quantities of oil from the open water in an effort to protect shoreline and marine and other wildlife.
"Fortunately, the largest patch of open water is in front of the observation window where visitors can see the swans and ducks at feeding time, " a spokesperson for the centre said.
BBC: Welney welcomes wildfowl that fled harsh Arctic weather
Monad Shoal is classified as an intermediate dive, and most shops require divers to have advanced open water or deep dive certifications since the depth surpasses the normal 18m limit for open water divers.
Even in 2007, when the previous record for melting was set, and satellite pictures showed the passage to be entirely clear of ice, there was only a short period of open water.
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