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Thalassia testudinum, commonly known as turtlegrass, [4] is a species of marine seagrass. It forms meadows in shallow sandy or muddy locations in the Caribbean Sea and the Gulf of Mexico. [5] Turtle grass and other seagrasses form meadows which are important habitats and feeding grounds.
Few species were originally considered to feed directly on seagrass leaves (partly because of their low nutritional content), but scientific reviews and improved working methods have shown that seagrass herbivory is an important link in the food chain, feeding hundreds of species, including green turtles, dugongs, manatees, fish, geese, swans ...
Earlier species were likely general grazers that foraged for seagrass and seaweed along the sandy coastline, indicated by scratch marks on the teeth caused by chewing sand, probably foraging in areas with a depth of less than 1 meter (3.3 ft). T. antiquus probably did not enter the water to feed, instead eating plants that washed ashore.
Zostera is a small genus of widely distributed seagrasses, commonly called marine eelgrass, or simply seagrass or eelgrass, and also known as seaweed by some fishers and recreational boaters including yacht captains.
Zostera marina is a flowering vascular plant species as one of many kinds of seagrass, with this species known primarily by the English name of eelgrass with seawrack much less used, and refers to the plant after breaking loose from the submerged wetland soil, and drifting free with ocean current and waves to a coast seashore.
Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. It is a small herbaceous plant that naturally occurs in sea beds and other saltwater environments in the Indo-Pacific. It was introduced as isolated populations in Florida, Cuba and Antigua. [2]
Each leaf has a sturdy sheath up to 3.5 centimeters long. The tip of the leaf blade has three teeth. [6] Plants of this family are dioecious. The male flower is borne on a short peduncle and is enclosed in a leaf. [5] The tiny anthers are red. [6] The fruit is about 2 millimeters long. [5] Leaf morphology changes according to habitat type. The ...
This seagrass is sensitive to light deprivation and a lowering of salinity in its environment. In a major flooding event in Queensland, half the seagrasses were lost in a shallow study area in Moreton Bay, the Syringodium isoetifolium disappearing almost completely while Zostera muelleri and other seagrass species survived, relatively unaffected. [4]