characterstics of sea weed and sea grass
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Seagrass can easily be confused with marine macroalgae, or seaweed, but there are many important differences between the two. While seagrasses are considered vascular plants and have roots, stems and leaves, seaweed are multi-cellular algae and have little or no vascular tissues. The two differ in reproduction, structure, and how they transport nutrients and dissolved gases. The table and diagram below illustrate some of these distinctions.
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Seaweeds are actually algae. Rockweed, kelp, sea lettuce and dulse are all well-known seaweeds. More than 25000 species of plants are classified as algae. Sea weeds are consumed in many European societies. Although many of the large, familiar seaweeds are shades of brown, there may be yellow, purple, pink and deep violet.

Seaweeds come in all shapes and sizes. Seaweeds around the world are a diverse and varied group. Most have a root like holdfasts at their bases, which enable them to cling to rocks and other surfaces and so withstand pounding surf and changing tides. The branching fronds of some, like rockweed are subdivided into segments resembling true leaves, and many are equipped with air bladders that keep the fronds afloat.
Irish moss grows in tough, leathery clumps up to 6 inches high. Rockweed grows to 36 inches long and is equipped with air bladders for floatation. Edible seaweeds are algae that can be eaten and used in the preparation of food. They may belong to one of the several groups of multi cellular algae – red algae, green algae and brown algae. Most edible seaweeds are marine algae while freshwater algae are toxic.The deepest living sea weeds are some species of red algae.

Seaweed is a source of iodine. It also helps to improve the digestion activity. Different sea weeds are known to have different health benefits. They are even taken after a brief illness as they are found to be rich in essential minerals and vitamins.
Seagrasses are not true grasses but are flowering plants that carry out their entire lifecycles underwater. Like all plants, seagrasses rely on sunlight to convert carbon dioxide into food/energy (via a process called photosynthesis). Therefore, they only succeed in clear, shallow waters. When the conditions are just right, seagrasses can densely cover the sea floor, creating an ecosystem known as the seagrass bed or seagrass meadow.

Seaweeds come in all shapes and sizes. Seaweeds around the world are a diverse and varied group. Most have a root like holdfasts at their bases, which enable them to cling to rocks and other surfaces and so withstand pounding surf and changing tides. The branching fronds of some, like rockweed are subdivided into segments resembling true leaves, and many are equipped with air bladders that keep the fronds afloat.
Irish moss grows in tough, leathery clumps up to 6 inches high. Rockweed grows to 36 inches long and is equipped with air bladders for floatation. Edible seaweeds are algae that can be eaten and used in the preparation of food. They may belong to one of the several groups of multi cellular algae – red algae, green algae and brown algae. Most edible seaweeds are marine algae while freshwater algae are toxic.The deepest living sea weeds are some species of red algae.

Seaweed is a source of iodine. It also helps to improve the digestion activity. Different sea weeds are known to have different health benefits. They are even taken after a brief illness as they are found to be rich in essential minerals and vitamins.
Seagrasses are not true grasses but are flowering plants that carry out their entire lifecycles underwater. Like all plants, seagrasses rely on sunlight to convert carbon dioxide into food/energy (via a process called photosynthesis). Therefore, they only succeed in clear, shallow waters. When the conditions are just right, seagrasses can densely cover the sea floor, creating an ecosystem known as the seagrass bed or seagrass meadow.
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