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Algae feedstock
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The substance on the trunks and branches of these trees is called "Trentepohlia". It is a genus of filamentous green chlorophyte algae that lives on tree trunks and wet logs. The strong brownish-orange color of the filaments, which mask the green of the chlorophyll, is caused by the presence of large quantities of carotenoid pigments. I found trees covered with this growth on the top of a high bluff overlooking the Pacific Ocean near Half Moon Bay in northern California.
From 2009. Under a moderately-high magnification of 2500X, this digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic “pin cushion” was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11781 for a greater magnification of this organism’s exterior.
Though many organisms found in untreated waters are harmless, there are many that are pathogenic to both humans and animals, including Giardia spp., free-living amebae, and E. coli just to name a few. During power outages, the functionality of treated water systems can be negatively affected, thereby, violating the patency of these closed systems. In these instances, advisories may be posted, encouraging inhabitants of these regions to boil their water tap water in order to kill off any pathogenic organisms that may have entered the system due to an intrasystemic drop in positive pressure.
Not only do water treatment plants remove such pathogenic organisms, but chemical that can be injurious to humans and animals are filtered from the water making it potable. Again, during power outages, or in the case of broken pipes, chemicals can contaminate tap water rendering it unsuitable to drink as well.
Photo Credit: Janice Haney Carr, CDC
Algae; sample from local pond
Leitz Orthoplan / Ploemopak 2.1
Leitz Pl Apo 40 / 0.75 (Epi fluorescence illumination)
13 sec / ISO 100,
H2 cube
Exciting filter: BP390-490nm
Beam-splitting miror: RKP510nm
Suppression filter: LP515nm
“We just need sunlight, salt water, and CO2. These are abundant in many parts of the world.”
— Craig Venter this morning
Algae and water ripples in the harbor of Wellington, New Zealand. (Oct. 22, 2022)
Photo © 2022 Marcie Heacox, all rights reserved. For use by permission only. Contact mheacox87 [at] hotmail.com .
Freshwater diatoms, an algae, surrounded by some lime scale on aquarium glass.
Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons (e.g. Fragillaria), fans (e.g. Meridion), zigzags (e.g. Tabellaria), or stellate colonies (e.g. Asterionella). Diatoms are producers within the food chain. A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica (hydrated silicon dioxide) called a frustule. These frustules show a wide diversity in form, but usually consist of two asymmetrical sides with a split between them, hence the group name. Fossil evidence suggests that they originated during, or before, the early Jurassic Period. Diatom communities are a popular tool for monitoring environmental conditions, past and present, and are commonly used in studies of water quality.
Algae has so many Leaves! I know it does, but this was the first time I noticed in detail.
* I've also uploaded the same from a Mobile phone camera - Sony Xperia Arc S. For image quality comparison. It's down here in the comment Box or in the link below...
The picture here is shot in DSLR - 18MP and the one in Mobile phone is shot in 6MP.
www.flickr.com/photos/nidhin-anilkumar/16097205545/in/pho...
Not normally rehired as attractive but essential and here in a good light with suggestive highlights. Formatted for mobile phone wallpaper
Coralline algae in Rose Atoll, located in National Marine Sanctuary of American Samoa. (Photo: Mark Manuel/NOAA)
Harmful Algal Bloom in Western Basin of Lake Erie: September 20, 2017
(Photo Credit: Aerial Associates Photography, Inc. by Zachary Haslick)
Pilots from Aerodata have been flying over Lake Erie this summer to map out the general scope of Harmful Algal Blooms (HAB) throughout the western basin. In addition to these amazing photos, during the flyovers, additional images are taken by a hyperspectral imager (mounted on the back of the aircraft) to improve our understanding of how to map and detect HABs. The lead PI for this project is Dr. Andrea VanderWoude.
For additional info on our HABs research, including hyperspectral work, visit our website, here: www.glerl.noaa.gov/res/HABs_and_Hypoxia
Many species of algae competing for space at Olympic Coast National Marine Sanctuary.
Photo credit: Jenny Waddell/NOAA