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Coralline algae. Coralline algae are red algae in the order Corallinales. They are characterized by a thallus that is hard because of calcareous deposits contained within the cell walls. The colors of these algae are most typically pink, or some other shade of red, but some species can be purple, yellow, blue, white, or gray-green.
Porolithon is a genus of coralline red algae. [1] although more species have been recently proposed.The Porolithon are the primary reef building algae. When coral reefs reach sea level, many corals break under the high energy impact of the waves, while coralline red algae, primarily Porolithon, continuing building and cementing the reef structure.
Pulley Ridge is a mesophotic coral reef system off the shores of the continental United States. [1] The reef rests on sunken barrier islands [2] and lies 100 miles west of the Tortugas Ecological Reserve and stretches north about 60 miles at depths ranging from 60 to 80 meters. [3] Pulley Ridge was originally discovered in 1950 during a ...
The reef lagoon is an entirely enclosed region, which creates an area less affected by wave action and often contains small reef patches. [57] However, the topography of coral reefs is constantly changing. Each reef is made up of irregular patches of algae, sessile invertebrates, and bare rock and sand. The size, shape and relative abundance of ...
Algae (UK: / ˈælɡiː / AL-ghee, US: / ˈældʒiː / AL-jee; [ 3 ]sg.: alga / ˈælɡə / AL-gə) are any of a large and diverse group of photosynthetic, eukaryotic organisms. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades.
Fringing reefs are the most common type of reef found in the Philippines, Indonesia, Timor-Leste, the western coast of Australia, the Caribbean, East Africa, and Red Sea. [1][2][8][3] The largest fringing coral reef in the world is the Ningaloo Reef, stretching to around 260 km (160 mi) along the coastline of Western Australia.
Coral reef fish are fish which live amongst or in close relation to coral reefs. Coral reefs form complex ecosystems with tremendous biodiversity. Among the myriad inhabitants, the fish stand out as colourful and interesting to watch. Hundreds of species can exist in a small area of a healthy reef, many of them hidden or well camouflaged.
Bryopsis. Bryopsis, often referred to a hair algae, [2] is a genus of marine green algae in the family Bryopsidaceae. [1] Species in the genus are macroscopic, siphonous marine green algae that are made up of units of single tubular filaments. They can form dense tufts up to 40 cm in height. [3][4] Each cell is made of up an erect thallus that ...