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Other plants that colonised the sea, such as salt marsh plants, mangroves, and marine algae, have more diverse evolutionary lineages. In spite of their low species diversity, seagrasses have succeeded in colonising the continental shelves of all continents except Antarctica.
One of the largest aquatic plants in the world is the Bolivian waterlily, which holds the Guinness World Record of having the largest undivided leaf at 3.2 m (10 ft 6 in) diameter; the smallest is the rootless duckweed, which is only 1 mm (0.039 in) across.
The so-called "stinging seaweed" Microcoleus lyngbyaceus is a filamentous cyanobacteria which contains toxins including lyngbyatoxin-a and debromoaplysiatoxin. Direct skin contact can cause seaweed dermatitis characterized by painful, burning lesions that last for days.
Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, plants, algae, fungi, protists, single-celled microorganisms and associated viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of coastal wetlands, lagoons ...
More than 90% or about 1,500,000 ha (3,700,000 acres) of the world's natural sea buckthorn habitat is found in China, Mongolia, Russia, and most parts of Northern Europe. [4] Sea buckthorn USDA hardiness zones are about 3 through 7. [4] In some areas it is considered invasive, due to its ability to outcompete smaller native species. [6]
A number of studies from around the world have found that there is a wide range in the concentrations of C, N, and P in seagrasses depending on their species and environmental factors. For instance, plants collected from high-nutrient environments had lower C:N and C:P ratios than plants collected from low-nutrient environments.
Kelp forests are some of the most productive ecosystems in the world - they are home to a great diversity of species. Many groups, like those at the Seattle Aquarium , are studying the health, habitat, and population trends in order to understand why certain kelp (like bull kelp ) thrives in some areas and not others.
In 2010 there were 19.2 × tons of aquatic plants worldwide, 6.8 × tons for brown seaweeds; 9.0 × tons for red seaweeds; 0.2 × tons of green seaweeds; and 3.2 × tons of miscellaneous aquatic plants. Seaweed is largely transported from coastal areas to the open and deep ocean, acting as a permanent storage of carbon biomass within marine ...