Global Biodiversity Information Facility. The researchers used a 19-year record of satellite data to study the Sargassum, which has bloomed every year from 2011 to 2018, with the exception of 2013. Vectors for its introduction include ballast water or hull-fouling on commercial ships or recreational boats. It is very common in … Specifically, Sargassum horneri, a non-native alga, was discovered in the Sanctuary in fall 2009, and there are multiple information needs to guide appropriate management responses. Thalli annual or perennial, attached by irregular, solid holdfast or by rhizoidal outgrowths from main axis. Sargassum horneri is an invasive species which grows mainly subtidally, although many new intertidal populations have been reported recently. It is very common in … Excerpt from Abbott, I. Species: Sargassum horneri Common Name/Nickname: Devil Weed Other names: Sargassum filicinum NATIVE DISTRIBUTION: Warm waters of Japan and Korea DESCRIPTION: Large brown algae can grow up to 3–5 m (10-16.4 ft) long, potentially forming Sargassum is a genus of brown macroalgae in the order Fucales. Scientific name: Sargassum polycystum However, their existence is jeopardized by a number of invasive species, namely Sargassum horneri (hereafter referred to as S. horneri). 1a). . Sargassum horneri is a common species of brown macroalgae that grows on the coastal sea of Korea and Japan. Main axis sometimes slightly differentiated into basal portion with flattened, elongate "leaves" and upper portion bearing shorter appendages, these sometimes radially arranged. NHPID Name: Sargassum horneri. Sargassum serves as a primary nursery area for a variety of commercially important fishes such as mahi mahi, jacks, and amberjacks. When Sargassum loses its buoyancy, it sinks to the seafloor, providing energy in the form of carbon to fishes and invertebrates in the deep sea, thus serving as a potentially important addition to deep-sea food web. Author(s): Marks, Lindsay | Advisor(s): Holbrook, Sally J | Abstract: Sargassum horneri is a seaweed native to eastern Asia that has recently become established in the coastal waters of southern California and Baja California, Mexico. The researchers used a 19-year record of satellite data to study the Sargassum, which has bloomed every year from 2011 to 2018, with the exception of 2013. Marine algae of California. The seaweed beds also provide a habitat for fish, sea urchins, abalones and turban shells. It looked like a carpet of little yellow grapes so they called it sargazo (a generic name in Spanish for seaweeds with a brown colour and with an obvious stalk and root; the Sargasso Sea is "El mar de los Sargazos"). National Exotic Marine and Estuarine Species Information System. Sargassum horneri is a species of brown macroalgae that is common along the coast of Japan and Korea. It has also spread rapidly south to Isla Navidad, Baja California, Mexico. Sargassum horneri is a nutrient rich edible brown seaweed with numerous biological properties found in shallow coastal areas of Korean peninsula. Literature contains little in- Both monoecious and dioecious species in Calif. flora. It is generally most abundant between depths of 3 – 15 meters (~10 – 50 feet), but has been found growing at 30 meters (~100 feet). Oogonia and antheridia as in family. Eventually, sc ientists derived the common name for the genus of brown . document.write("-") Sargassum C. Agardh 1820. It grows attached to hard substrates in the shallow subtidal, but can also occur in large floating mats. "Leaves" with midrib and cryptostomata. Sargassum muticum is an invasive brown seaweed that has recently found its way to the shores of Ireland. Sargassum horneri has been nicknamed \”devil weed\” as it has the ability to take over ecosystems and supplant lush kelp forests with bushy fields. Vertical Distribution: Low intertidal - subtidal, Clusters of symmetrical, fern-like blades from spiny cylindrical stipes, Many elliptical floats, some with bladelets at the tip, Subtidal plants large (>1m), eroding back to holdfasts in winter, Reproductive receptacles large, shaped like chili peppers, Red markers: endpoints of range from literature. Large-scale Sargassum blooms, known as golden tides, have been occurring along the coast of the Yellow Sea in recent years, resulting in an enormous loss of Pyropia yezoensis production. It is native to Japan, Korea and China, … document.write(d.getFullYear()), Image courtesy of jnotar and www.inaturalist.org through the, California Non-native Estuarine and Marine Organisms (Cal-NEMO). The seaweed beds also provide a habitat for fish, sea urchins, abalones and turban shells. S. horneri traditionally used as a medicinal ingredient to treat several disease conditions such as hyperlipidemia, hypertension, heart disease, and inflammatory diseases (furuncle). However, characteristics vary and identification of … It has no English common name, but the Japanese call it akamoku. We asked whether the invasion (i.e., the process by which an exotic species exhibits rapid population growth and spread in the novel environment) of S. horneri is influenced by three mechanisms known to affect S. horneri traditionally used as a medicinal ingredient to treat several disease conditions such as hyperlipidemia, hypertension, heart disease, and inflammatory diseases (furuncle). The most recent arrival in our waters, Sargassum horneri, was first collected from Long Beach Harbor in 2003.This alga is a native of Korea, Japan, and China as far south as Hong Kong. Occurrence of Sargassum: The genus Sargassum (Spanish sargazo, sea­weed) is represented by about 150 species, out of which 1 6 species are found in India. Main axis sometimes slightly differentiated into basal portion with flattened, elongate "leaves" and upper portion bearing shorter appendages, these sometimes radially arranged. Although up to 17 local Sargassum species are distributed along the coast of the Yellow Sea and East China Sea, which are fixed to substrate (Lu and Tseng, 2004; Huang et al., 2017), S. horneri was identified as the only dominant species of drifting Sargassum in the Yellow Sea (Su L. et al., 2018). NHPID Name: Sargassum horneri. Origin of name Etymology: Sargassum, a brown algae (seaweed) was a term coined by Portuguese sailors—which has even been attributed to Christopher Columbus (1492 expedition: first time someone reported crossing the Sargasso Sea). var d = new Date() It has a broad native range in the Western Pacific spanning from Northern Japan to the Philippines. * Content for this species is based on the literature and peer review is pending - if you have comments or feedback please contact Paul Fofonoff at fofonoffp@si.edu. It is generally most abundant between depths of 3 – 15 meters (~10 – 50 feet), but has been found growing at 30 meters (~100 feet). Organism - Sargassum horneri. document.write(monthname[d.getMonth()] + " ") Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. The method knocked down the Sargassum enough that when divers returned this year they found fewer plants growing in the test plots than in untreated control plots, said Adam Obaza of the West Coast Region’s Protected Resources … Stanford University Press, Stanford, California. Sargassum natans Common Gulfweed photo by Phillipe Rouja : Sargassum fluitans Broad-toothed Gulfweed photo by GCRL : The characteristics described below are useful in differentiating between the two species. To locate the source of the blooms, we performed large-scale spatio-temporal sampling in the South Yellow Sea, East China Sea, and Jeju Island, South Korea. Sargassum is a large seaweed genus which prefers the open waters of the tropics, although some species can be found clinging to rocks closer to shore. Sargassum horneri (S. horneri) is a large alga native to the shallow reefs of eastern Asia.As a key species in the Northwest Pacific ecosystem, S. horneri is a primary producer, a biofilter of nutrient runoff, and a traditional food source for the people who live in Japan, Korea, and China. Among these marine algae, Sargassum horneri (S. horneri)was found to have a unique anabolic effect on bone. Organism - Sargassum horneri. This is some default tab content, embedded directly inside this space and not via Ajax. The origin of the specific epithet “polycystum” could not be traced back. Genus: Sargassum Species: horneri! var d = new Date() Young individuals have flat, symmetrical, fern-like blades with notched tips (fig. algae now known as . Numerous species are distributed throughout the temperate and tropical oceans of the world, where they generally inhabit shallow water and coral reefs, and the genus is widely known for its planktonic species. 2007). It has subsequently spread (Marks et al. It has no English common name, but the Japanese call it akamoku. document.write(d.getDate()) Pneumatocysts common. Most species within the class Phaeophyceae are predominantly cold-water organisms that benefit from nutrients upwelling, but the genus Sargassum appears to be an exception. In Wakasa Bay it began to grow in early autumn through winter, becoming matured in Spring, when the sea water temperature was 11.6–15.2 °C (53–59 °F) in average. Thalli annual or perennial, attached by irregular, solid holdfast or by rhizoidal outgrowths from main axis. However, characteristics vary and identification of … As the alga grows, it becomes loosely branched in a zig-zag Sargassum horneri (aka Devil Weed) is a large, annual brown seaweed, native from Japan to the Philippines. Overview: Sargassum horneri is a large and conspicuous brown seaweed. Free and Open Access to Biodiversity Data. 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