scholarly journals Benthic marine algae on Japanese tsunami marine debris – a morphological documentation of the species. Part 3. The green algae and cyanobacteria

Author(s):  
Gayle Hansen ◽  
Hiroshi Kawai ◽  
Takeaki Hanyuda
2018 ◽  
Vol 69 (5) ◽  
pp. 1089-1098
Author(s):  
Elena Suzana Biris Dorhoi ◽  
Maria Tofana ◽  
Simona Maria Chis ◽  
Carmen Elena Lupu ◽  
Ticuta Negreanu Pirjol

The valorification of the marine biomass is an important resource for many industries like pharmaceutical, supplying raw material for the extraction of bioactive substances (vitamins, sterols and collagen), cosmetics, biofertilizers and wastewater treatment. In the last years a special attention has been given to the use of macroalgae. The aim of this study was to emphasize the capacity of two representative green algae species frequent presents on the Romanian shore, Ulva lactuca (L.) and Cladophora vagabunda (L.) Hoek, to remove two usual detergents from wastewater. The green algae washed, dried at room temperature, macerated to powder were introduced into different filter paper for comparison, then immersed in waste water treated with different concentrations of detergents. Tap water was used for the experiment. The results show that Ulva lactuca (L.) species is suitable than Cladophora vagabunda (L.) Hoek species, for wastewater treatment.


Phycologia ◽  
2018 ◽  
Vol 57 (6) ◽  
pp. 641-658 ◽  
Author(s):  
Gayle I. Hansen ◽  
Takeaki Hanyuda ◽  
Hiroshi Kawai
Keyword(s):  

1970 ◽  
Vol 40 (1) ◽  
pp. 41-45
Author(s):  
Abdul Aziz ◽  
Md Towhidur Rahman

Ceramium tenerrimum (G. Martens) Okamura fa, Caulerpa sertularioides fa corymbosa Taylor and Cladophora vagabunda (L.) Hoek from St. Martin’s Island, Bangladesh have been recorded, and described and illustrated for the first time with descriptions and illustrations. Key words: Ceramium; Caulerpa; Cladophora; Red alga; Green algae; Bangladesh DOI: http://dx.doi.org/10.3329/bjb.v40i1.7996 Bangladesh J. Bot. 40(1): 41-45, 2011 (June)


1950 ◽  
Vol 33 (4) ◽  
pp. 389-422 ◽  
Author(s):  
F. T. Haxo ◽  
L. R. Blinks

A polarographic oxygen determination, with tissue in direct contact with a stationary platinum electrode, has been used to measure the photosynthetic response of marine algae. These were exposed to monochromatic light, of equal energy, at some 35 points through the visible spectrum (derived from a monochromator). Ulva and Monostroma (green algae) show action spectra which correspond very closely to their absorption spectra. Coilodesme (a brown alga) shows almost as good correspondence, including the spectral region absorbed by the carotenoid, fucoxanthin. In green and brown algae, light absorbed by both chlorophyll and carotenoids seems photosynthetically effective, although some inactive absorption by carotenoids is indicated. Action spectra for a wide variety of red algae, however, show marked deviations from their corresponding absorption spectra. The photosynthetic rates are high in the spectral regions absorbed by the water-soluble "phycobilin" pigments (phycoerythrin and phycocyanin), while the light absorbed by chlorophyll and carotenoids is poorly utilized for oxygen production. In red algae containing chiefly phycoerythrin, the action spectrum closely resembles that of the water-extracted pigment, with peaks corresponding to its absorption maxima (495, 540, and 565 mµ). Such algae include Delesseria, Schizymenia, and Porphyrella. In the genus Porphyra, there is a series P. nereocystis, P. naiadum, and P. perforata, with increasingly more phycocyanin and less phycoerythrin: the action spectra reflect this, with increasing activity in the orange-red region (600 to 640 mµ) where phycocyanin absorbs. In all these red algae, photosynthesis is almost minimal at 435 mµ and 675 mµ, where chlorophyll shows maximum absorption. Although the chlorophylls (and carotenoids) are present in quantities comparable to the green algae, their function is apparently not that of a primary light absorber; this role is taken over by the phycobilins. In this respect the red algae (Rhodophyta) appear unique among photosynthetic plants.


2020 ◽  
Vol 3 (1) ◽  
pp. 74
Author(s):  
Emin Cadar ◽  
Aneta Tomescu

Modern research from the last years show that some vitamins have changed in their role of maintaining a healthy life. The paper presents information about the concept of vitamins and possible sources of vitamins from marine algae found in the Black Sea. The existence of vitamins in green algae from Enteromorpha and Cladophora species were identified through spectral analyzes in IR.


1986 ◽  
Vol 64 (4) ◽  
pp. 808-814 ◽  
Author(s):  
R. Nielsen ◽  
J. McLachlan

Collections were made from various sites in Nova Scotia and Prince Edward Island for small green benthic marine algae, filamentous species associated with other plants, animals, wood, shells, or stones. Identifications were based on observations in situ and material isolated into culture. Twenty species, distributed in 14 genera, were identified; six are new records for eastern Canada and a seventh species is a new record for the Maritime provinces.


2010 ◽  
Vol 17 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Abdul Aziz ◽  
Shahima Islam ◽  
Abdullah Harun Chowdhury

Cladophora crispula Vickers, Cladophora prolifera (Roth) Kütz. and Phyllodictyon anastomosans (Harv.) Kraft et Wynne are recorded and described for the first time from the St. Martin’s Island, Cox's Bazar, Bangladesh.Keywords: Cladophora crispula; Cladophora prolifera; Phyllodictyon anastomosans; St. Martin’s Island.DOI: 10.3329/bjpt.v17i2.6699Bangladesh J. Plant Taxon. 17(2): 193-198, 2010 (December)


2018 ◽  
Vol 61 (5) ◽  
pp. 481-498
Author(s):  
Michael J. Wynne

Abstract An updated checklist of the benthic marine algae (seaweeds) of the Northern Arabian Sea coast of the Sultanate of Oman is presented, with a total of 402 taxa, consisting of 75 taxa of brown algae (Phaeophyceae), 238 taxa of red algae (Rhodophyta), and 89 taxa of green algae (Chlorophyta). Obsolete names and taxonomic synonyms as well as information on mis-identified names are provided. The classification in many instances reflects new ideas derived from the results of molecular-based phylogenetics. A total of 18 taxa of benthic marine algae are newly reported for Oman.


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