scholarly journals Marine benthic algal flora of Ascension Island, South Atlantic

2014 ◽  
Vol 97 (4) ◽  
pp. 681-688 ◽  
Author(s):  
Konstantinos Tsiamis ◽  
Akira F. Peters ◽  
Dawn M. Shewring ◽  
Aldo O. Asensi ◽  
Pieter Van West ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Red Algae ◽  
Brown Algae ◽  
South Atlantic ◽  
Marine Macroalgae ◽  
Algal Flora ◽  
Red Macroalgae ◽  
Ascension Island ◽  
Infraspecific Taxa ◽  
First Time

This paper provides a comprehensive checklist of the marine benthic macroalgal flora of Ascension Island (tropical South Atlantic Ocean), based on both new collections and previous literature. 82 marine macroalgae were identified from our work, including 18 green algae (Ulvophyceae), 15 brown algae (Phaeophyceae) and 49 red algae (Rhodophyta). Among our collections, 38 species and infraspecific taxa are reported for the first time from Ascension Island, including seven green, three brown and 28 red macroalgae, raising the total number of seaweeds recorded in Ascension so far to 112 taxa in species and infraspecific level. No seagrasses have been recorded at Ascension Island.

scholarly journals Macroalgae

Encyclopedia ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 177-188
Author(s):  
Leonel Pereira
Keyword(s):  
Carbon Dioxide ◽  
Chlorophyll A ◽  
Red Algae ◽  
Great Variability ◽  
Marine Macroalgae ◽  
Brown Macroalgae ◽  
Green Macroalgae ◽  
Red Macroalgae ◽  
Photosynthetic Organisms ◽  
Green Pigments

What are algae? Algae are organisms that perform photosynthesis; that is, they absorb carbon dioxide and release oxygen (therefore they have chlorophyll, a group of green pigments used by photosynthetic organisms that convert sunlight into energy via photosynthesis) and live in water or in humid places. Algae have great variability and are divided into microalgae, small in size and only visible through a microscope, and macroalgae, which are larger in size, up to more than 50 m (the maximum recorded was 65 m), and have a greater diversity in the oceans. Thus, the term “algae” is commonly used to refer to “marine macroalgae or seaweeds”. It is estimated that 1800 different brown macroalgae, 6200 red macroalgae, and 1800 green macroalgae are found in the marine environment. Although the red algae are more diverse, the brown ones are the largest.

scholarly journals New records of benthic marine algae from Morocco (eastern Atlantic Ocean): morphology, taxonomy and distribution

2018 ◽  
Vol 43 ◽  
pp. 111-116
Author(s):  
Mustapha Hassoun ◽  
Hanaa Moussa ◽  
Ghizlane Salhi ◽  
Hanaa Zbakh ◽  
Hassane Riadi ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
New Record ◽  
Pacific Islands ◽  
New Records ◽  
Atlantic Coast ◽  
Marine Macroalgae ◽  
Eastern Coast ◽  
Western Coast ◽  
Eastern Atlantic Ocean ◽  
First Time

AbstractWe report new records and corological data for three Moroccan marine macroalgae that complete their distribution information. Radicilingua thysanorhizans is new record for Morocco; Champia compressa is recorded for the first time from the eastern coast of the Atlantic Ocean. Diplothamnion jolyi is widely distributed in the western coast of the Atlantic coast and Pacific Islands, and recently reported from the Mediterranean Sea; this new record from Moroccan Atlantic coast extends their distribution range.Key words: Algae, Atlantic Ocean, Champia compressa, Diplothamnion jolyi, Radicilingua thysanorhizans.ResumenSe aportan nuevos registros y datos corológicos para tres macroalgas marinas de Marruecos, que completan la información sobre su distribución. Radicilingua thysanorhizans es cita nueva para Marruecos. Champia compressa se registra por la primera vez en la costa oriental del Océano Atlántico. Diplothamnion jolyi se distribuye ampliamente en la costa occidental de la costa atlántica y las islas del Pacífico y ha sido recientemente citada en el mar Mediterráneo; esta nueva cita para costa Atlántica Marroquí amplia su rango de distribución.Palabras clave: Algae, Océano Atlántico, Champia compressa, Diplothamnion jolyi, Radicilingua thysanorhizans.

Two new diatom species (Bacillariophyta) from Ascension Island (South Atlantic Ocean)

2018 ◽  
Vol 147 ◽  
pp. 229-235
Author(s):  
Bart Van de Vijver ◽  
Sandra Wilfert ◽  
David M. John ◽  
Horst Lange-Bertalot
Keyword(s):  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Diatom Species ◽  
Ascension Island

scholarly journals Natural Products of Marine Macroalgae from South Eastern Australia, with Emphasis on the Port Phillip Bay and Heads Regions of Victoria

Marine Drugs ◽  
2020 ◽  
Vol 18 (3) ◽  
pp. 142 ◽  
Author(s):  
James Lever ◽  
Robert Brkljača ◽  
Gerald Kraft ◽  
Sylvia Urban
Keyword(s):  
Natural Products ◽  
Secondary Metabolites ◽  
Phenolic Acids ◽  
Red Algae ◽  
Brown Algae ◽  
Marine Macroalgae ◽  
Eastern Region ◽  
South Eastern ◽  
Eastern Australia ◽  
Different Types

Marine macroalgae occurring in the south eastern region of Victoria, Australia, consisting of Port Phillip Bay and the heads entering the bay, is the focus of this review. This area is home to approximately 200 different species of macroalgae, representing the three major phyla of the green algae (Chlorophyta), brown algae (Ochrophyta) and the red algae (Rhodophyta), respectively. Over almost 50 years, the species of macroalgae associated and occurring within this area have resulted in the identification of a number of different types of secondary metabolites including terpenoids, sterols/steroids, phenolic acids, phenols, lipids/polyenes, pheromones, xanthophylls and phloroglucinols. Many of these compounds have subsequently displayed a variety of bioactivities. A systematic description of the compound classes and their associated bioactivities from marine macroalgae found within this region is presented.

scholarly journals The genus Melobesia (Corallinales, Rhodophyta) from the subtropical South Atlantic, with the addition of M. rosanoffii (Foslie) Lemoine

Phytotaxa ◽  
2014 ◽  
Vol 190 (1) ◽  
pp. 268 ◽  
Author(s):  
Vanessa Poletto Borges ◽  
Eduardo Bastos ◽  
Manuela Bernardes Batista ◽  
Zenilda Bouzon ◽  
Cintia Lhullier ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Measurement Data ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Coralline Algae ◽  
Taxonomic Identification ◽  
Southern Brazil ◽  
Spore Dispersal ◽  
Epiphytic Algae ◽  
First Time

The calcareous crusted epiphytic algae are a group of extremely delicate, fragile and poorly studied algae. The subfamily Melobesioideae (Corallinophycidae, Rhodophyta) includes the genus Melobesia, which has no record of molecular analysis.However, thanks to measurement data, it was possible to find enough similarity for taxonomic identification of two species: Melobesia rosanoffii (Foslie) Lemoine, described for the first time in South Atlantic Ocean, and Melobesia membranacea (Esper) Lamouroux, first described in southern Brazil. The group has undergone several changes of classification from animals to plants. Today crusty coralline algae have great importance due to the possibility of easy spore dispersal between oceans.

Geology of ascension Island, South Atlantic Ocean

Geothermics ◽  
1996 ◽  
Vol 25 (4-5) ◽  
pp. 427-448 ◽  
Author(s):  
Dennis L. Nielson ◽  
Bruce S. Sibbett
Keyword(s):  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Ascension Island

scholarly journals ADICIONES A LAS MACROALGAS DE LOS ARRECIFES CORALINOS DE LAS ISLAS DEL ROSARIO, CON NUEVOS REGISTROS PARA EL CARIBE COLOMBIANO Y EL ATLANTICO

2016 ◽  
Vol 22 ◽  
Author(s):  
Germán Bula Meyer ◽  
Guillermo Díaz Pulido ◽  
Argemiro Celis Rincón
Keyword(s):  
Coral Reefs ◽  
Atlantic Ocean ◽  
Green Algae ◽  
Red Algae ◽  
Caribbean Sea ◽  
Macroalgal Species ◽  
Taxonomic Changes ◽  
Place Of Origin ◽  
First Time ◽  
Made In

Twenty macroalgal species are added to the flora of coral reefs of the Rosario Islands, Colombian Caribbean Sea. Four species of Chlorophyta, three species of Phaeophyta and thirteen of Rhodophyta. Among the mentioned species, the green algae Udotea caribaea Littler et Littler and Batophora oerstedii J. Agardh and the red algae Rhodogorgon ramosissima J. Norris et Bucher, Rhodogorgon carriebowensis J. Norris et Bucher, Hydrolithon borgesenii (Foslie) Foslie and Champia vieillardii Kützing, are reported for the first time for the Colombian Caribbean; and Lithophyllum brachiatum (Heydrich) Lemoine and Antithamnion percurrens Dawson for the Atlantic Ocean. Taxonomic changes are made in some species previously reported for the islands, and the probable place of origin and temporal presence of Sargassum fluitans Borgesen and Turbinaria turbinata (Linné) Kuntze are explained.

Nikoides schmitti Manning & Chace, 1971 (Caridea: Processidae) in the South Atlantic Ocean, with an updated list and key for processid shrimps of Brazil

Zootaxa ◽  
2011 ◽  
Vol 2864 (1) ◽  
pp. 34 ◽  
Author(s):  
ALEXANDRE OLIVEIRA ALMEIDA ◽  
LUIS ERNESTO ARRUDA BEZERRA
Keyword(s):  
Atlantic Ocean ◽  
Continental Shelf ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Depth Range ◽  
The South ◽  
Soft Bottoms ◽  
First Time

The shrimp Nikoides schmitti Manning & Chace, 1971 (Decapoda: Caridea: Processidae) is reported for the first time from the South Atlantic Ocean, based on four specimens dredged on soft bottoms of the continental shelf of the Camamu Basin, Bahia, Brazil (13°28’–13°30’S; 38°47’–38°49’W), at a depth range of 38–49 m depth. The Brazilian material is illustrated and an updated list of the Brazilian processid shrimps and a key for their identification are provided.

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