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It has an eel-like, elongated, and compressed body with a pointed head and small, terminal mouth. Its dorsal fin is continuous along the entire top length of the body, ending at the caudal peduncle. It consists of a small section of vertically longer spiny rays close to the head and a soft ray portion connected to the spiny rays.
Laminaria hyperborea is a species of large brown alga, a kelp in the family Laminariaceae, also known by the common names of tangle and cuvie. It is found in the sublittoral zone of the northern Atlantic Ocean. A variety, Laminaria hyperborea f. cucullata (P.Svensden & J.M.Kain, 1971) is known from more wave sheltered areas in Scandinavia. [2]
Laminaria is a genus of brown seaweed in the order Laminariales (kelp), comprising 31 species native to the north Atlantic and northern Pacific Oceans. This economically important genus is characterized by long, leathery laminae and relatively large size.
Despite its appearance, kelp is not a plant but a stramenopile (a group containing many protists). [4] Kelp grow from stalks close together in very dense areas like forests under shallow temperate and Arctic oceans. [3] They were previously thought to have appeared in the Miocene, 5 to 23 million years ago based on fossils from California. [5]
Macrocystis is a monospecific genus [3] of kelp (large brown algae) with all species now synonymous with Macrocystis pyrifera. It is commonly known as giant kelp or bladder kelp. This genus contains the largest of all the Phaeophyceae or brown algae. Macrocystis has pneumatocysts at the base of its blades.
For instance, Chen Cangqi (681–757) noted: "kūnbù is produced in the South China Sea; its leaf is like a hand and the size is the same as a silver grass and a reed, is of red purple; the thin part of leaf is seaweed", [10] which is similar to wakame, arame, kurome, or kajime (Ecklonia cava). The difficulty is that, at least in that time ...
Laminaria agardhii is a species of brown kelp, noted by a strong holdfast and finger-like blades. ... This kelp exists in the sublittoral zone, adapted to grow among ...
Sea urchins graze on the lower stems of kelp, causing the kelp to drift away and die. Loss of the habitat and nutrients provided by kelp forests leads to profound cascade effects on the marine ecosystem. North Pacific areas that do not have sea otters often turn into urchin barrens, with abundant sea urchins and no kelp forest. [76]