science

List of brown seaweeds of South Africa

List of brown seaweeds of South Africa is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of brown seaweeds of South Africa rather than just read about it. In short: This is a list of brown seaweeds recorded from the oceans bordering South Africa. This list comprises locally used common names, scientific names with author citation and recorded ranges.

Key takeaways

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Reference excerpt

This is a list of brown seaweeds recorded from the oceans bordering South Africa. This list comprises locally used common names, scientific names with author citation and recorded ranges. Ranges specified may not be the entire known range for the species, but should include the known range within the waters surrounding the Republic of South Africa. List ordering and taxonomy complies where possible with the current usage in Algaebase, and may differ from the cited source, as listed citations are primarily for range or existence of records for the region. Sub-taxa within any given taxon are arranged alphabetically as a general rule. Details of each species may be available through the relevant internal links. Synonyms may be listed where useful. Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types of Rhodophyta (red), Phaeophyta (brown) and Chlorophyta (green) macroalgae. Seaweed species such as kelps provide essential nursery habitat for fisheries and other marine species and thus protect food sources; other species, such as planktonic algae, play a vital role in capturing carbon and producing at least 50% of Earth's oxygen. Natural seaweed ecosystems are sometimes under threat from human activity. For example, mechanical dredging of kelp destroys the resource and dependent fisheries. Other forces also threaten some seaweed ecosystems; for example, a wasting disease in predators of purple urchins has led to an urchin population surge which has destroyed large kelp forest regions off the coast of California. Humans have a long history of cultivating seaweeds for their uses. In recent years, seaweed farming has become a global agricultural practice, providing food, source material for various chemical uses (such as carrageenan), cattle feeds and fertilizers. Due to their importance in marine ecologies and for absorbing carbon dioxide, recent attention has been on cultivating seaweeds as a potential climate change mitigation strategy for biosequestration of carbon dioxide, alongside other benefits like nutrient pollution reduction, increased habitat for coastal aquatic species, and reducing local ocean acidification. The IPCC Special Report on the Ocean and Cryosphere in a Changing Climate recommends "further research attention" for the purpose of mitigation. (Full article...)

Division: Heterokonta — Class: Phaeophyceae — Brown seaweeds

Order: Cutleriales

Family Cutleriaceae Aglaozonia sp. (Muizenberg, False Bay. Brandfontein. Bird Island, eastern Cape)

Order: Desmarestiales

Family Desmarestiaceae Acid weed Desmarestia firma (C.Agardh) Skottsberg in Nordenskjöld 1907, syn. Sporochnus herbaceus var. firma C.Agardh 1824, (Möwe Bay, Namibia to Betty's Bay. Doubtful record for Cape Agulhas)

Order: Dictyotales

Family Dictyotaceae Canistrocarpus cervicornis (Kützing) De Paula & De Clerck in De Clerck et al. 2006, syn. Dictyota cervicornis Kützing 1859, (Mission Rocks northwards into Mozambique) Dictyopteris delicatula J.V.Lamouroux 1809, syn. Neurocarpus delicatulus (J.V.Lamouroux) Kuntze, Haliseris delicatula (J.V.Lamouroux) C.Agardh 1820. (Isipingo northwards) Smooth-tongued dictyopteris Dictyopteris ligulata (Suhr) O.C.Schmidt 1938, syn. Haliseris ligulata Suhr 1834, (Black Rock (Umpangazi?), Natal to Koppie Allen, De Hoop Nature Reserve. Rare on west coast, only collected from Brandfontein) Dictyopteris macrocarpa (Areschoug) O.C.Schmidt 1938, syn. Haliseris macrocarpa Areschoug 1847, Neurocarpus macrocarpus (Areschoug) Kuntze 1891, (Port Alfred northwards to Mozambique) Dictyota ciliolata Sonder ex Kützing 1859, (Mabibi northwards into Mozambique) Dictyota dichotoma (Hudson) J.V.Lamouroux 1809, syn. Ulva dichotoma Hudson 1762, Zonaria dichotoma (Hudson) C.Agardh 1817, Fucus dichotomus (Hudson) Bertolini 1819, Haliseris dichotoma (Hudson) Sprengel 1827, Dichophyllium dichotomum (Hudson) Kützing 1843, (Langebaan and False Bay to Natal. D. dichotoma var. intricata (C.Agardh) Greville 1830, common at Kalk Bay and Dalebrook, and occurring more or less throughout the range of the species) Dictyota friabilis Setchell 1926, (Northern KwaZulu-Natal) Dictyota humifusa Hörnig, Schnetter & Coppejans in Hörnig et al. 1992, (Isipingo northwards into Mozambique) Dictyota liturata J.Agardh 1848, (Kommetjie on Cape Peninsula to Umhlali in KwaZulu-Natal) Spotted dictyota Dictyota naevosa (Suhr) Montagne 1840, syn. Zonaria naevosa Suhr 1834, Cutleria naevosa (Suhr) Hering ex Krauss 1846, (Die Walle to Umhlali, KwaZulu-Natal)(Cape Peninsula eatward into KwaZulu-Natal as far as Mission Rocks) Distromium skottsbergii Levring 1940, (Protea banks in southern KwaZulu-Natal) Multi-fanned zonaria Exallosorus harveyanus (Pappe ex Kützing) J.A.Phillips, 1997. Syn. Zonaria harveyana (Pappe ex Kützing) Areschoug 1851, (Platbank, False Bay to KwaZulu-Natal as far north as Park Rynie. Endemic) Lobophora variegata (J.V.Lamouroux) Womersley ex E.C.Oliveira 1977, syn. Dictyota variegata J.V.Lamouroux 1809, Zonaria variegata (J.V.Lamouroux) C.Agardh 1817, Gymnosorus variegatus (J.V.Lamouroux) J.Agardh 1894, Pocockiella variegata (J.V.Lamouroux) Papenfuss 1943, (East London eastward into Mozambique) Padina boryana Thivy in W.R. Taylor 1966, (The Haven about 150km west of Port St. Johns eastward into Mozambique) Rugulopteryx suhrii (Kützing) De Clerck & Coppejans in De Clerck et al. 2006, syn. Dictyota marginata Areschoug 1851, Dictyota suhrii G.Murray 1888, Stoechospermum suhrii Kützing 1859, (Algoa Bay eatwards into KwaZulu-Natal as far north as Isipingo) Spatoglossum asperum J.Agardh 1894, (Isipingo northward) Stoechospermum polypodioides (J.V.Lamouroux) J.Agardh 1848, syn. Dictyota polypodioides J.V.Lamouroux 1809, (Mapelane near St. Lucia northward into Mozambique) Stypopodium multipartitum (Suhr) P.C.Silva in P.C.Silva, Basson & Moe 1996, syn. Zonaria multipartita Suhr 1834, Cutleria multipartita (Suhr) Hering 1846, Orthosorus multipartitus (Suhr) Trevisan 1849, Spatoglossum multipartitum (Suhr) Kützing 1849, (Arniston eastward into Mozambique) Articulated zonaria Zonaria subarticulata (J.V.Lamouroux) Papenfuss 1944, Dictyota subarticulata J.V.Lamouroux 1809, Padina interrupta (Lamouroux) Bory de Saint-Vincent 1827, Phycopteris interrupta (Lamouroux) Kützing 1849, Orthosorus interruptus (Lamouroux) Trevisan 1849, (False Bay eastward to Mozambique)

Order: Ectocarpales

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with List of brown seaweeds of South Africa

Start with the simplest possible case. Write down what List of brown seaweeds of South Africa claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of brown seaweeds of South Africa before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of brown seaweeds of South Africa ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of brown seaweeds of South Africa

In research: List of brown seaweeds of South Africa appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of brown seaweeds of South Africa in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of brown seaweeds of South Africa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lists of algae, Marine biota of South Africa, Seaweeds, so understanding it makes those chapters shorter.
In everyday life: Look for List of brown seaweeds of South Africa outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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Frequently asked questions

What is List of brown seaweeds of South Africa in simple terms?

This is a list of brown seaweeds recorded from the oceans bordering South Africa. This list comprises locally used common names, scientific names with author citation and recorded ranges.

Why does List of brown seaweeds of South Africa matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of brown seaweeds of South Africa?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of brown seaweeds of South Africa.