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Many different species of zooxanthellae are present in host organisms, each species with its own adaptive capabilities and degree of tolerance of varying environmental factors. [2] A juvenile organism or newly established colony can acquire its zooxanthellae via sexual reproduction or directly from the environment. The egg from which the ...
Symbiotic Symbiodiniaceae are sometimes colloquially referred to as Zooxanthellae, though the latter term can be interpreted to include other families of symbiotic algae as well. [7] While many Symbiodiniaceae species are endosymbionts, others are free living in the water column or sediment.
Symbiodinium reach high cell densities through prolific mitotic division in the endodermal tissues of many shallow tropical and sub-tropical cnidarians.This is a SEM of a freeze-fractured internal mesentery from a reef coral polyp (Porites porites) that shows the distribution and density of symbiont cells.
The aggregating anemone (Anthopleura elegantissima), or clonal anemone, is the most abundant species of sea anemone found on rocky, tide swept shores along the Pacific coast of North America. [1] This cnidarian hosts endosymbiotic algae called zooxanthellae that contribute substantially to primary productivity in the intertidal zone. [2]
Most fire coral species have brittle skeletons that can easily be broken, for example, during storms, or by divers when diving for leisure, or when collecting fish for the aquarium trade. For instance, the yellowtail damselfish ( Chrysiptera parasema ) tends to dwell close to the branching fire coral colonies, and retreats into its branches ...
These are species of Symbiodinium and are commonly known as zooxanthellae. They are photosynthetic organisms and provide the sea anemone with nutrients and energy, the products of photosynthesis. This type of arrangement is common in corals and sea anemones in nutrient-deficient tropical seas but is rare in temperate waters, which tend to be ...
The zooxanthellae are photosynthetic, and as the water temperature rises, they begin to produce reactive oxygen species. [2] This is toxic to the coral, so the coral expels the zooxanthellae. [ 2 ] Since the zooxanthellae produce the majority of coral colouration, the coral tissue becomes transparent, revealing the coral skeleton made of ...
Species See text. Oculina is a genus of colonial stony coral in the family Oculinidae. ... Some species contain symbiotic microalgae called zooxanthellae. [2] Species