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Dunaliella is a single-celled, photosynthetic green alga, that is characteristic for its ability to outcompete other organisms and thrive in hypersaline environments. [1] It is mostly a marine organism, though there are a few freshwater species that tend to be more rare. [2]
Few organisms can survive as D. salina does in such highly-saline conditions as salt evaporation ponds.To survive, these organisms have high concentrations of β-carotene to protect against the intense light, and high concentrations of glycerol to provide protection against osmotic pressure.
Essential Fish Habitat (EFH) was defined by the U.S. Congress in the 1996 amendments to the Magnuson-Stevens Fishery Conservation and Management Act, or Magnuson-Stevens Act, as "those waters and substrate necessary to fish for spawning, breeding, feeding or growth to maturity."
Juveniles prefer to settle in undisturbed coastal ecosystems that are semi-enclosed, calm, shallow, free from predators, and rich in aquatic vegetation. In their natural habitats, milkfish are very adaptable to both changes in environmental conditions and diet. [17] Milkfish are good osmoregulators and extremely euryhaline. [18]
A marine habitat is a habitat that supports marine life. Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean). A habitat is an ecological or environmental area inhabited by one or more living species. [1] The marine environment supports many kinds of these habitats.
Stomiidae is a family of deep-sea ray-finned fish, including the barbeled dragonfishes.They are quite small, usually around 15 cm, up to 26 cm. These fish are apex predators and have enormous jaws filled with fang-like teeth. [1]
They are found throughout Africa and the Middle East, and live in freshwater lakes, rivers, and swamps, as well as human-made habitats, such as oxidation ponds or even urban sewage systems.
Barbonymus balleroides is a species of ray-finned fish in the genus Barbonymus from south-east Asia. [1] it is a widely eaten food fish and makes up the majority of the fish biomass in most of its range.