INTRODUCTION Algae constitute an important group of plants which mostly occur in aquatic habitats. What Is The Importance Of Insects In The Ecosystem? The pathogen thrives in waterlogged skin lesions caused by protothecosis, which is caused by the chloroplast-lacking green alga Prototheca. Their controlled growth can provide positive help in tackling some present day problems such as disposal of sewage and industrial wastes, conservation of water and soil, and improvement of . It also plays a key role in alkaline. The organisms extreme ability to repair levels of nitrogen already present in the soil is the main reason why this type of fertiliser is so popular. . Algae are taking an active role in human beings. [Bangiaceae]. 3 0 obj Water Supplies 6. Kelp forests are examples of large species of algae that provide habitat to numerous organisms. To regain the fertility of the land, algae is eventually grown in these lands, which are often referred to as Usar lands, the pH level must be lowered than before and the ability of the soil to hold onto water must be increased. Algae refers to a wide range of eukaryotic marine organisms, all of which engage in the process of photosynthesis. Get subscription and access unlimited live and recorded courses from Indias best educators. Despite contributing significantly to the oxygen available in the world, algae may cause a reduction in the levels of oxygen levels in ponds and lakes in certain conditions. Menu. In general, algae consist of 4 classes based on their pigment content, namely Rhodophyceae (red algae), Phaeophyceae (brown algae), Chlorophyceae (green algae), Cyanophyceae(blue-green algae). Uses for Algae Food In 2018, its production reached 0.26 million Tons. Algae also plays a key role in the process of alkaline reclaiming which can be used as an agent known for soil binding, and it is also used in a variety of commercial products. Accessed via https://www.algaebase.org/search/species/detail/?species_id=350 on 22 September 2021. Historically, Porphyra cultivation has a long journey. Once in the blood, it can allow humans to naturally produce ATP, an energy-rich molecule, while in the sunlight. 4. The Nuri has function as decoration and flavoring assorted Japanese dishes, side dishes when eating rice, and other functions. Mannitol is the reserve food material in-------. Algae have diverse economic uses. 4R. What Is The Importance Of Oasis In A Desert? What Is The Ecological Importance Of Algae? Even it is known that algae supplies about half the oxygen in the earth's atmosphere. Apart from playing a vital role in the world's ecology, algae perform an important function in the world's economy. The use of Algae as fodder is famous in various countries, such as the northern European nations of Sweden, Denmark, and Norway, as well as in Scotland, China, New Zealand, and throughout North and South America. 2021. The word algae generally refer to a wide array of plants that share the name though not closely related. They perform half of the total carbon dioxide fixation on earth by photosynthesis, acting as the primary producers in aquatic habitats. Japanese Kelp or Laminaria japonica become the worlds most popular Algae in 2018. 4) Algae used as fertilizer The large brown and red algae are used as organic fertilizers, especially on land close to the sea. Sustainability in action. Due to the large amount of algae in the world, it is responsible for the production of more than 30% of the oxygen that land animals rely on for their survival. Algae are economically important in a variety of ways. Economic importance of Algae Since from olden days Algae species are intimately connected with human beings as a source food medicine and other uses. Economic Importance of Algae Algae play a small but important role in the direct economy of many countries. One of the most important roles played by algae in the environment is the production of oxygen as a by-product in the process of photosynthesis. It plays important role in alkaline reclaiming which is used as a soil binding agent. A. Chondrus. Light exposure levels, pollution, turbidity, water velocity, temperature, water chemistry, ecosystem disturbance, availability of nutrients, and other factors all contribute to algae growth in ponds and lakes. The term seaweed (seaweed) is commonly known in the world of trade. <>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 960 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> The Smelting Industry: Global Importance And Risks. The natural substance can be used as a food source, a fodder, in fish farming, and as a fertilizer. The natural substance can be used as a food source a fodder in fish farming and as a fertilizer. These are economically important in many ways. Some etymologists have theorized that the term algae may have its roots in the Latin language from the word algre, which refers to the cold. Wikipedia. Algae Used As Fodder The seaweeds like Ascophyllum, Fucus and Laminaria are used as food for sheep and cattle. Chlorella (rich in cell proteins hence used as food supplement, even by space travelers), Sargassum, Laminaria, Porphyra, etc. They play a vital role in maintaining the ecosystem by fixation of at least half of the total carbon dioxide on earth through photosynthesis. 3.Harmful Algal bloom' is the result of accumulation of species of. 2. Algae is considered a substance of such high nutritional value that these meals also include algae as part of a salad, accompanied by meat in a fried dish, also used as a topping on oatmeal, or even in liquid form as an extract in a nutritious smoothie. Gracilaria Accessed via https://en.wikipedia.org/wiki/Gracilaria on 22 September 2021. Taxonomically, this species Phylum: Ochrophyta; Subphylum: Phaeista; Infraphylum: Limnista; Superclass: Fucistia; Class: Phaeophyceae; Order: Laminariales; Family: Laminariaceae; Genus: Laminaria; Species: Laminaria japonica. Biology, 21.06.2019 23:50, aletadaboss. Several estimates indicate that the amount of oxygen produced by the algae is close to 50% of what terrestrial animals need. They are immensely important because it is a food source to a large number of aquatic animals ranging from tadpoles to fish species such as the catfish and the Siamese algae eater. This alga cannot tolerate with temperatures below 10 C (50 F). Algae, especially known as seaweed, is used as fodder for a variety of cattle animals. Economic Importance of Algae In our ecosystem, algae present a vast range of eukaryotic marine organisms, all of these organisms which come under the eukaryotic marine organisms engage in the process of photosynthesis. Economic Importance Of Algae. Origin of Petroleum and Gas 7. Algae are taken in several ways according to the choice and taste of the people. The edible brown algae are also used as fodder. Answer: Algal toxins can irritate the skin and eyes if they come into direct contact with them. Chlorella and Spirulina are. Laminaria Alaria Macrocystis Sargassum. In Japan, this species is known as Hijiki. NEET 2022 Answer Key Link Here, Download PDF, Kerala Plus One Result 2022: DHSE first year results declared, UPMSP Board (Uttar Pradesh Madhyamik Shiksha Parishad). It also plays a key role in alkaline reclaiming can be used as a soil binding agent and is used in a variety of commercial products. Answer: Zoospores, aplanospores, tetraspores, akinetes, exospores, and endospores are the several kinds of asexual reproduction seen in algae. Algae Constitute the Link of Food Chain. Algae are also used in sewage treatment to remove toxic . It is also used to thicken soups and sauces. Research indicates that algae can by used by the agricultural industry in the production of fertilizers due to the high nutrient content. Algae are also used in sewage treatment to remove toxic particles. It also plays a key role in alkaline reclaiming can be used as a soil binding agent and is used in a variety of commercial products. Statistically, some algae have the highest production because of their major function in human lives. Its production in 2018 reached 2.3 million tons. The algae also make use of the oxygen for respiration. This seaweed can be classified in Division: Rhodophyta; Class: Florideophyceae; Order: Gracilariales; Family: Gracilariaceae. Economic Importance of Algae: Food: Algae have been in use as human food for centuries in various parts of the world, including Scotland, Ireland, Norway, Sweden, France, Germany, North and South America, China, and Japan. Answer: Although uncommon, algae can cause diseases in humans by attacking human tissues directly. Marinespecies. In this article we will discuss about the economic importance of algae. Used As Food for Humans- One of the most crucial economic importance of algae is that some species have been used as food for a long time in some parts of the world. The alages are also determined and differentiated by their pigment. Chlorella and Spirulina are. Algae are economically important in a variety of ways. They carry out more than 50% of food-fat marine animals. Many species of marine algae such as Porphyra Sargassum and Laminaria are edible. Porphyra tenera (a red alga) is known as Amanori in Japan and the Accessed via http://www.marinespecies.org/aphia.php?p=taxdetails&id=494972 on 20 September 2021, Copyright 2022 The Science Agriculture | Powered by Astra WordPress Theme, 10 Most Captured Fish in The World of 2017, 10 Worlds Biggest Countries of Marine Capture Production, 15 Worlds Largest Technology Companies in 2021, 11 Worlds Biggest Consumer Goods Companies in 2021, McDonalds Corporation Financial Performance from Time to Time, https://www.algaebase.org/search/species/detail/?species_id=350, http://www.fao.org/fishery/docs/DOCUMENT/aquaculture/CulturedSpecies/file/es/es_nori.htm on 22 September 2021, https://en.wikipedia.org/wiki/Pyropia_tenera, http://www.marinespecies.org/aphia.php?p=taxdetails&id=494972, 4 Worlds Largest Countries in Seaweed Production of 2015, 10 Worlds Most Important Finfish Species of Aquaculture, 10 Worlds Biggest Goat Meat-Producing Countries, 10 Worlds Biggest Producers of Beer from Barley, Source : Food and Agriculture Organization (FAO, 2020). Algae can also indicate what kinds of pollutants are affecting a water body as different pollutants have a different effect on its growth. According to scientists, a variety of species of fish like to consume a variety of types of algae, the most common type of algae which is the most common source of food for fish being blue-green and green algae, as well as microalgae. They are also used as thickening agents in food, biodiesel fuel, bacterial growth medium, etc. Economic importance of algae Algae have diverse economic uses. After the completion of the process, oxygen is released. Algae are rich in nutrients such as minerals proteins essential vitamins A B C E etc. Most people who eat algae prefer to eat the chlorella variety as it has been proven to have an exceptionally high quantity of chlorophyll in addition to other nutrients important for the body. Gracilaria seaweeds or Gracilaria spp. People living in European countries such as Ireland, Scotland, France, Germany, Norway, and Sweden, all these countries as well as some populations living in North and South America, and Asian nations such as China and Japan use algae as a main ingredient for making some local dishes. Algae can be used as food, fodder and also as a binding agent. Fodder 11. Algae is Used for Recreational Purposes 4. The use of seaweed has multiple functions, gelatine, pickles, vegetables, salads, wakame, kombu, and nori. However, if we read about the nutritional fact about Algae we would know that Algae contains several healthy elements in itself including carbohydrates, fats, proteins, and vitamins A, B, C, and E. Algae is considered to be consumed worldwide in different food forms but it is also known to be a very low-cost source of protein, it also contains a bunch of important minerals such as iron, potassium, magnesium, calcium, manganese, and zinc. Laminaria, Fucus are some of the species producing this compound. Some of the algae are used as food and fodder in agriculture industry medicine purification of water aviation and as a. Algae are the main Oxygen producers in aquatic areas. FAO. Scientists have extensively studied the distribution patterns of algae as they are found in a significant number of areas around the world where they perform several vital functions. @% U*cU{([c9w :@ & iJi.K:pw"m%~i e9@,oNJ7^quFjlg _UPJu5?:LEzE:lkeTBU!F!QhUN]#*s~IkIRv$Uv 2)!vf(#(/=_7^Puob|:[bB[3[? v1!0Mw! become the second worlds most popular Algae in 2018. Egg-yolks of fowl fed on chopped phaeophytes are rich in carotene and . Cell wall consists of . Laver or its scientific name Porphyra tenera is the 8th worlds biggest algae. 4 0 obj release your mouse button when the item . (a) Food source: Many species of marine algae such as Porphyra, Sargassum, and Laminaria are edible. Common Types of Green Algae 3. Functionally, this species can be used as dried seaweed food. They also produce oxygen during photosynthesis in fresh water and marine ecosystem. Answer:Plants have stems, roots, and leaves, while algae do Answer: Zoospores, aplanospores, tetraspores, akinetes, exospores, and endospores are the several k Answer: Light exposure levels, pollution, turbidity, water ve Answer: Algal toxins can irritate the skin and eyes if they c Answer: Although uncommon, algae can cause diseases in humans by attacking human tissues directly. In 2018, its production reached 0.85 million Tons. Floating plankton and zooplankton are mainly the organisms the fish feed on, which provide a source of healthy vitamins. Algae is Useful in Sewage Treatment Plants 5. Space Research and Other Fundamental Studies 9. Economic Importance 1. What is the economic importance of algae. ALGAE Algae are photoautotrophic that can prepare their own food and they produce oxygen during photosynthesis. https://doi.org/10.4060/ca9229en. {85IbK4H]} Taxonomically, its species can be classified in Phylum: chrophyta; Subphylum: Phaeista: Infraphylum: Limnista; Superclass: Fucistia: Class: Phaeophyceae; Subcalss: Fucophycidae; Order: Fucales; Family: Sargassaceae; Genus: Sargassum; Species: Sargassum fusiforme. which is clear. Wakame (Undaria pinnatifida) Wakane or Undaria pinnatifida become one of the most important Algae in The World in 2018. Animals that may be located within kelp forests include nudibranchs, snails, skeleton shrimp, and sea urchins among others. Economic importance of Algae These eukaryotic marine organisms have no roots flowers and stem. One of the similarities between land plants and several algae species is the presence of chlorophyll which allows them to form organic food molecules by utilizing energy from the sun and carbon dioxide. The edible brown algae are also used as fodder. Sewage Treatment Plants 5. Algae included under kingdom planate by Whittaker (1969) are of three types red algae, brown algae and green algae. In the FAO publication of 2020 entitled The State of World Fisheries and Aquaculture 2020, this institution describes the species of algae with the biggest production in 2018. Accessed via https://en.wikipedia.org/wiki/Pyropia_tenera on 20 September 2021. 10. Most of the alages are often found in aquatic bodies such as in marine or freshwater but only a few and limited kinds of algae are found in extreme conditions like snow, ice, or hot spring. In 2018, its production reached 0.89 million Tons. The process is essential to the survival of algae as the food molecules provide them with energy. Answer: Light exposure levels, pollution, turbidity, water velocity, temperature, water chemistry, ecosystem disturbance, availability of nutrients, and other factors all contribute to algae growth in ponds and lakes. Used As Food for Human One of the most crucial economic importance of algae is some species have been used as food for a long time in some parts of the world. It can be used to help connect soil. They are seen to exist as single, microscopic cells; also they can exist as macroscopic and multicellular; they usually live in colonies, or to camouflage themselves they take on a leafy appearance as in the case of seaweeds such as giant kelp. Gastroenteritis can be caused by drinking algae-affected water or eating food containing toxins, such as fish or shellfish, which can cause vomiting, diarrhoea, fevers, and headaches. 1 0 obj Besides, it contains vitamins A, B, C, K and essential amino acids. However, these aquatic plants are characterised and separated by some physical properties like lack of flowers, formal roots, leaves, or even stems. Economic Importance of ALGAE 1. It is the scientific study of all of the species of the animal kingdom as a whole, including humans. Algae are rich in nutrients such as minerals, proteins, essential vitamins A, B, C, E, etc. In various countries, such as India, fields that once produced large agricultural yields become partially useless because they can no longer be used due to high concentrations of alkalinity present in the soil. Statistically, the Philippines, China, Malaysia, and Indonesia are some of the countries that have a huge production of this commodity. In various ways, there is a huge economic importance of algae. In particular, these two types of algae(red and brown) are utilised only in areas located near the ocean. Hijiki is a healthy food because it contains important minerals such as calcium, iron, and magnesium. Another factor is that they reproduce rapidly and the offspring can be analyzed to check whether it is similar to their predecessor or the pollution has altered its genetic make-up. There are mainly four types of algae present and known to us : (Blue-Green Algae known as cyanobacteria, which appear in blue-green due to the presence of chlorophyll a, b, and phycobilins), (Green Algae), (Red Algae, which contains chlorophyll a, d, carotenoids, xanthophylls, and phycobilins in them), (Brown Algae, containing chlorophyll a, c and fucoxanthin pigment). Algae, as processed and unprocessed food, have an annual commercial value of several billion dollars.Algal extracts are commonly used in preparing foods and other products, and the direct consumption of algae has existed for centuries in the diets of East Asian and Pacific Island societies. For instance, in Japan, a food item called 'kombu' is made from laminaria algae. USEFUL ASPECTS OF ALGAE 1)Algae as human food: Chlorella, a unicellular green alga, possesses a high quality of food value. Based on the FAO report, the production of this species reached 11.4 million tons. Eucheuma nei seaweed (Eucheuma spp.) ROLE IN NITROGEN FIXATION Algae plays in important role in nitrogen fixation. It also plays a key role in alkaline Algae like other plants are intimately connected to human beings from times immemorial. Pyropia tenera. Algae have diverse economic uses. The natural substance can be used as a food source a fodder in fish farming and as a fertilizer. Industrial Utilization of Algae. Functionally, Gracilaria is a nutritional food in some countries, namely Philippines, Japan, and Korea. Nori nei or Porphyra spp. 5. It also plays a key role in alkaline land reclaiming soil binding and is used in a variety of commercial products. USE OF ALGAE AS AGAR AGAR It is a jelly like substance obtained from algae. Functionally, this alga can be used as the raw material of carrageenan. Accessed via http://www.fao.org/fishery/docs/DOCUMENT/aquaculture/CulturedSpecies/file/es/es_nori.htm on 22 September 2021. In Japan, there are many species of algae that can be used in daily cooking, and Japanese people like to consume seaweed. % Porphyra spp. Washington State Lake Protection Association. Economic Importance of Algae 1. Algae can be both beneficial and harmful to mankind. Algae are microscopic and macroscopic, which is mostly unicellular as similar to plants. According to the Washington State Lake Protection Association, some factors make algae well suited to showing whether a water body is contaminated. Algae also have a short life cycle which reduces the time it would typically take scientists to study the species for an indication of pollution. Algae release lot of oxygen into water as a by-product of photosynthesis. To stabilise, thicken, and emulsify particular food products we use brown algae, while red algae are used in the preparation of various semi-solid products for example medicines, cosmetics, and in the production of a wide array of foods. Based on its habitat, gracilaria usually live in all oceans except the Arctic Ocean. Algae commonly have multiple benefits to humans. Uses for Algae Food. 6 days ago Algae although are the primitive thallophytic autotrophic and aquatic organisms they count a number of great economic importances in the present worldSome of the economic importances of algae are as followsAlgae are the healthy source of carbohydrates fats proteins vitamins A B C and E as well as the minerals like iron potassium ma. This process is mainly done using blue-green algae. Algae is considered an important source of nourishment in numerous cultures all around the world. Lorem Ipsum has been the industry's. Its total production in 2018 reached 9.2 million tons. Taxonomically, this species can be classified in Division: Rhodophyta; Class: Bangiophyceae; Order: Bangiales; Family: Bangiaceae; Genus: Pyropia; Species:P. tenera. One of the similarities between land plants and several algae species is the presence of chlorophyll which allows them to form organic food molecules by utilizing energy from the sun and carbon dioxide. Algae and Water Supplies 6. Algae are economically important in a variety of ways. Economic importance of Algae These eukaryotic marine organisms have no roots flowers and stem. ECONOMICAL IMPORTANCE OF ALGAE Presented to. A number of brown algae are used as food in some countries, e.g., Laminaria, Macrocystis, Sargassum, Alaria, Durvillea, Pelvettia, etc. Liquid fertiliser is mainly produced using concentrated seaweed extract. <> Chlorella and Spirulina are rich in . {getWidget} $results={3} $label={recent} $type={list2}, Haikyuu Manga Karasuno Vs Nekoma Nationals Chapter. Life in the ocean is heavily dependent on algae as the organisms that feed on algae are eaten by larger species ensuring that life continues in the sea. These algae keep the water habitable for fish by absorbing the carbon dioxide from it and enriching water with oxygen through photosynthetic activity. Majority of algae are abundant in stagnant waters. 4. Kappaphycus alvarezii, the elkhorn sea moss, is a species of red algae. https://doi.org/10.3389/fnut.2018.00023. The alages are also determined and differentiated by their pigment. Taxonomically, this species can be classified in Phylum: Ochrophyta; Class: Phaeophyceae; Order: Laminariales; Family: Alariaceae; Genus: Undaria; Species: U. pinnatifida. These are economically important in many ways. Algae occupy the position of producer within a food chain which means that numerous food chains begin with them. The absence of these cells is an evolutionary adaptation to the regions where the plants thrive. They are also useful in decreasing water pollution by realizing. Algae may range from simple unicellular organisms to more complex multicellular organisms like the giant kelp. useparams react router v6. Algae Useful in Fish Culture 3. This article gives you an insight into the zoological parks, the advantages and disadvantages of zoos and much more. According to research published in the Journal of cell science, feeding on plants with a high concentration of chlorophyll introduces the chemical to the bloodstream. Research indicates that algae can by used by the agricultural industry in the production of fertilizers due to the high nutrient content. What Is The Economic Importance Of Algae Ecology Photosynthesis Physics. Food 10. Algaes can range in numerous sizes, for example, they can vary from unicellular microalgae to giant kelp. Other questions on the subject: Biology. But they are still considered less important economically than fungi and bacteria. So based on the taxonomy, it has close relation with the other algae, namely Laminaria agraphia, Laminaria digitata, Laminaria hyperborean, Laminaria sinclairii. Get answers to the most common queries related to the NEET UG Examination Preparation. Plants have stems, roots, and leaves, while algae do not. This is the source of dissolved oxygen for aquatic organisms. The large red algae and brown algae are the two most common varieties of algae used in the manufacture of fertiliser. Based on its habitat, gracilaria usually live in all oceans except the Arctic Ocean. Some brown algae get attached to hulls of ships eg. (a) Many species of algae are used as food. Sargassum fusiforme (Harvey) Setchell, 1931. What Is The Economic Importance Of Algae? As a result, they lack vascular tissues that help transport water and nutrients from the roots to the leaves. Spiny eucheuma (Eucheuma denticulatum) is the 10th worlds biggest production of algae. Economic importance of Algae Algae are used as food as they are rich in carbohydrates, vitamins and few other inorganic substances. %PDF-1.5 Many species of marine algae such as Porphyra Sargassum and Laminaria. There are several economic Importance of algae such as they are used as a food source a fodder in fish farming as a fertilizer and they also used in medical industries. Algae are primarily producers of food in a very large ways and are used as food, fodder and manures. 2 0 obj Kombu is widely used as a spice and cooked together with vegetables, meat, or cooked into processed foods. 2021. Fucus and Laminaria are rich sources of iodine. Ranging in size from unicellular microalgae to giant kelp, these aquatic plants are characterized by their lack of flowers, formal roots, leaves, or even stems. The Importance Of The Deep Sea: Why It Needs Protection? Laminarin is the reserve food material of. is the 3rd most popular Algae in 2018. The economic importance of algae is very diverse. xMk@9g{! MhCcl7[-%WV3;;3pu5x^_~ The research indicates that by comparing historical data on the growth of algae to recent data on its distribution, conclusions can be drawn on the climate change over the years. Faiza Afzal Roll no. They perform half of the total carbon dioxidefixation on earth by photosynthesis acting as the primary producers in aquatic habitats. In the following, we will write a note on the economic importance of algae and gymnosperms. (b) Alginic acid is produced commercially from Kelps. Therefore, the algae an important form of food for fishes. Ranging in size from unicellular microalgae to giant kelp, these aquatic plants are characterized by their lack of flowers, formal roots, leaves, or even stems. Gracilaria usually grows warm waters throughout the world. Algae bring importance roles which are beneficial in several aspects including: 1. Apart from playing a vital role in the world's ecology, algae perform an important function in the world's economy. Fish farming or Pisciculture also utilises algae as part of its entire production process. It also plays a key role in alkaline reclaiming, can be used as a soil binding agent, and is used in a variety of commercial products. endobj The following points highlight the economic importance of algae. Pisciculture is the industry involved in the breeding and farming of fish which is also known as fish farming. The term algae refers to numerous different organisms which are capable of processing photosynthesis to produce oxygen. Algae also plays a key role in the process of alkaline reclaiming which can be used as an agent known for soil binding, and it is also used in a variety of commercial products. It started since the 17th century in Japan, Korea, and China. Until now, this alga has become one of the most important shallow-water coastal industries in these countries. A large amount of algae within the environment absorbs vast quantities of carbon dioxide reducing the buildup of the gas in the atmosphere. has the favorable one with the production in 2018 reached 2 million tons. Algae are usually differentiated on the basis of their pigments, flagellation and storage products. What are the economic importance of algae. In this chapter we will discuss zygote definition, formation of zygote, development of zygote and much more.At last we will discuss some important questions related to this topic. Apart from playing a vital role in the worlds ecology algae perform an important function in the worlds economy. Answer: A. Clarification: Alginic acid and its salts are obtained from the walls of brown algae, where they may represent as much as 25 percent of the dry weight. In various ways, there is a huge economic importance of algae. The economic importance of algae. Biologically, Eucheuma can grow through the apical meristem network consisting of a group of cells that are active in the development stage. 2018.Effects of the Brown Seaweed Laminaria japonica Supplementation on Serum Concentrations of IgG, Triglycerides, and Cholesterol, and Intestinal Microbiota Composition in Rats. From time to time, historically, seaweed has been used by the Chinese and Japanese as special food and as medicine. People in various communities, particularly Asian societies, also consume algae. 6. Although the exact origin of the word algae is unknown, the singular form, alga, is a Latin word that refers to seaweed. Answers: 1 Show answers. In protecting against natural processes such as erosion the use of algae to help in healthy soil formation is important. It is used in desserts and other cooking. The red alga nori, or laver (Porphyra), is the most important commercial food alga. [35. Food Most societies around the globe think about green growth as a basic wellspring of sustenance. Seaweed Laminaria japonica usually grows in the subtidal zone.