View allAll Photos Tagged algae
The thallus in these algae is coenocytic - i.e it is not divided into separate cells by cross-walls as in most other plants. The whole of the structure seen here is therefore techically a single cell! In spite of this, these algae have a remarkably complex morphology, with the thallus divided into the equivalent of roots, horizontal stems and leaves, although it is assumed that there is no homology between the structures seen in these plants and those of terrestrial groups.
Oh, I just had to!
1. Holosaccion glandiforme detail, 2. codium, 3. Wish Wash Wonder again, 4. Hedophyllum abstract 7
Algae from pond water. Photo taken with Zeiss PMII scope 32x plan objective and Canon EOS 60D camera equipped with Zeiss 47 60 10 intermediate tube and Leitz 4x projection lens. Modified brighfield. Three images stacked using Zerene Stacker. May be Closterium moniliferum
Foliose red algae
Date: 14/08/2005
SE Lunga, Firth of Lorn
Photographer: Ben James
© SNH. All rights reserved. Please email for details - marinephotos@nature.scot
Image ref: DSC05099/NM-05-1230
Kate, at the sorting table in Palmer Station's aquarium facility, inspects Gymnogongrus turquetti for endophytes. Back to UAB in Antarctica website.
A bit of a digifiddle made a most interesting result.
It used to take a couple of days to make screen or lino print like this, and now 10 minutes will do!
There is another different version here www.renderosity.com/mod/gallery/index.php?image_id=2435012
Red algae on silty bedrock
Date: 13/08/2005
NE Garbh Eileach, Garvellachs, Firth of Lorn
Photographer: Ben James
© SNH. All rights reserved. Please email for details - marinephotos@nature.scot
Image ref: DSC05043/NM-05-1180
8x10 pinhole very close to water (algae) level, making the algae look much more expansive than it was. That log in the water was only about 25 feet away while the opposite shore was easily several hundred feet away. The foreground is very stretched out.
Efke IR820 with 25a medium red filter and about a 2.5 minute exposure. Developed in Rodinal 1+50 for 10 minutes (drum).
San Diego has the largest algae R&D cluster in the world. As part of the 2010 Algae Tour, I was able to get the inside scoop on the progress many of the companies are making in bringing algae fuel and products to market.
Rings of bloom and bust for communities of simple life.
The environment is either sodden with water, drying out or dry and I guess that this reflects upon the growth of this lichen or blue-green algae. There is a brown leaf in a top crack which gives an idea of scale. Static rippling of echoes of water. This image was hiding under a lip of petrified dry waterfall.
This is not a happy picture: It is an algae bloom at the edge of Waiakauhi, the largest natural anchialine pond at Hualalai. A healthy pond should not have this. Still, I could not resist taking a picture of it for its fascinating texture.
It was directly below this photo: Green Leaves, White Flowers
Will have to ask David Chai about those “trails” when I next see him.
Learn more about David and Waiakauhi here:
On Golden Ponds, a story for Hana Hou Magazine by Rose Kahele
The Phaeophyceae or brown algae (singular: alga), is a large group of mostly marine multicellular algae, including many seaweeds of colder Northern Hemisphere waters. They play an important role in marine environments, both as food and for the habitats they form. For instance Macrocystis, a kelp of the order Laminariales, may reach 60 m in length, and forms prominent underwater forests. Another example is Sargassum, which creates unique habitats in the tropical waters of the Sargasso Sea. Many brown algae, such as members of the order Fucales, commonly grow along rocky seashores. Some members of the class are used as food for humans.
Worldwide there are about 1500-2000 species of brown algae. Some species are of sufficient commercial importance, such as Ascophyllum nodosum, that they have become subjects of extensive research in their own right.
Brown algae belong to a very large group, the Heterokontophyta, a eukaryotic group of organisms distinguished most prominently by having chloroplasts surrounded by four membranes, suggesting an origin from a symbiotic relationship between a basal eukaryote and another eukaryotic organism. Most brown algae contain the pigment fucoxanthin, which is responsible for the distinctive greenish-brown color that gives them their name. Brown algae are unique among heterokonts in developing into multicellular forms with differentiated tissues, but they reproduce by means of flagellated spores and gametes that closely resemble cells of other heterokonts. Genetic studies show their closest relatives to be the yellow-green algae.
Long Beach Smithtown, Long Island NY