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The olm (German: ⓘ) or proteus (Proteus anguinus) is an aquatic salamander which is the only species in the genus Proteus of the family Proteidae [2] and the only exclusively cave-dwelling chordate species found in Europe; the family's other extant genus is Necturus.
A. taxiformis has yet to be commercially farmed at scale, but several companies are working towards it as they make the seaweed available to the livestock industry. A research/development initiative called Greener Grazing is seeking to close the life cycle of A. taxiformis and demonstrate ocean-based grow-out. [17]
"Seaweed" lacks a formal definition, but seaweed generally lives in the ocean and is visible to the naked eye. The term refers to both flowering plants submerged in the ocean, like eelgrass, as well as larger marine algae. Generally, it is one of several groups of multicellular algae; red, green and brown. [7]
[15] [16] The common mudpuppy never leaves its aquatic environment and therefore does not undergo morphogenesis; however, many salamanders do and develop differentiated teeth. [17] Aquatic salamander teeth are used to hinder escape of the prey from the salamander; they do not have a crushing function. [17] This aids the salamander when feeding.
The seaweed is prepared by cleaning and soaking it overnight in fresh water to remove the bitter iodine taste. [ 14 ] Like all macroalgae , Asparagopsis contains bromoform , a halogen compound which is known to inhibit methane production in ruminants .
Axolotls may be confused with the larval stage of the closely related tiger salamander (A. tigrinum), which are widespread in much of North America and occasionally become paedomorphic, or with mudpuppies (Necturus spp.), fully aquatic salamanders from a different family that are not closely related to the axolotl but bear a superficial ...
Seaweeds usually grow in shallow coastal waters where they are anchored to the seafloor by a holdfast. Seaweed that becomes adrift can wash up on beaches. Kelp is a large brown seaweed that forms large underwater forests covering about 25% of the world coastlines. [65] They are among the most productive and dynamic ecosystems on Earth. [66]
Seaweed were generally considered homologues of terrestrial plants, [11] but are only very distantly related to plants, and have evolved plant-like structures through convergent evolution. [12] Where plants have leaves, stems, and reproductive organs, kelp have independently evolved blades, stipes, and sporangia .