View allAll Photos Tagged algae
Many species of algae competing for space at Olympic Coast National Marine Sanctuary.
Photo credit: Jenny Waddell/NOAA
Close-up of Microcystis bluegreen algae. Maumee Bay, Lake Erie, September 1998. Photo taken by D. Schloesser, USGS, Great Lakes Science Center, late September 1998.
Rough bubble Algae
Dictyosphaeria cavernosa
(Forsskål) Børgesen, 1932
Description:
The plant forms a large, green, hollow, nearly spherical mass that may be lobed or may collapse or rupture but continues to grow; up to 10 cm in diameter. The wall is crisp, crunchy and show large, angular cells. Differentiated from smooth bubble algae because of the visibility of individual cells (1 mm in size) that make up the algae. They form convoluted, hollow colonies of a continuous layer of green cells.
Habitat:
It grows in most reef environments, attached to rocky substrates and areas of dead coral. On occasion it covers extensive areas, especially under high nutrient levels.
Distribution:
South Florida, Bahamas and Caribbean.
Sources:
-http://species-identification.org/
-http://www.biol.andrews.edu/
A selection of North Sea algae and bryozoa taken by flash.
1 Bryozoa Hornwrack "Flustra foliacea "- a colonial filter feeding animal.
2 Thong Weed
3Sea Lettuce
4 Sea Oak
5 Laurencia pinnatifida.
Whitby North Yorkshire UK 28th August 2012
What makes Rose Atoll in National Marine Sanctuary of American Samoa rosy? Coralline algae! Pink coralline algae dominates the atoll's fringing reef, giving the reef a rosy hue.
Photo Credit: Wendy Cover/NOAA
Leodia sexiesperforata (Leske, 1778) - six-keyhole sand dollar from the Virgin Islands.
Compared with sea urchins, sand dollars (irregular echinoids) have flattened skeletons (tests), which are made of interlocking calcareous plates. During life, sand dollar tests are covered in short, fur-like spines. They live below the substrate, buried in sediments (infaunal). They are omnivores, feeding on tiny invertebrates and algae, and detritivores.
Classification: Animalia, Echinodermata, Echinoidea, Clypeasteroida, Mellitidae
Locality: Brewers Bay, St. Thomas, western Virgin Islands
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Info. at:
This beach had no sand, but only large clumps of algae strewn on jagged rocks. A different kind of tranquility.
San Diego, Mission Beach
Red algae
Plocamium cartilagineum
Plocamiaceae Family
Order:Plocamiales
Division: Rhodophyta
I am told it tastes like carrots!
Diatoms[1] are a major group of algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons (e.g. Fragilaria), 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. Some diatoms are capable of movement via flagellation.
The Canada Geese family's little island is going to be surrounded by algae pretty soon. . Beaver Lake, Elk/Beaver Lake Regional Park, Saanich, Greater Victoria, Vancouver Island, BC
Test of the 1.3mp video camera from microscopenet.com . Claims 1280x1024 but I see interlacing lines...
The frame rate is only 8fps at this resolution, increases to 15fps at 640x480. This is not what the manual says (15fps and 30fps respectively).
Oh well, at least the image quality is good?
An algae field with pinkish rope sponge (Aplysina sp.).
Gulf of Mexico, McGrail Bank.
Credit: NURC/UNCW and NOAA/FGBNMS.
Algae in bottle on bottom, the crude oil above that and right at the top the pure liquid fuel derived from the algae.
This is a small stream fed by a spring about 100 ft. away. The There are two predominant life forms here: Cylindrospermum (green stuff); Sphaerotilus (brown stuff). These are blue green algae or cyanobacteria and a filamentous sheathed bacteria, respectively. I posted a photomicrograph of the Cylindrospermum: www.flickr.com/photos/14643312@N02/16819180235/ and earlier a photomicrograph of the Sphaerotilus: www.flickr.com/photos/14643312@N02/13861877713/in/set-721....
Losensky Park has several springs, likely fed by the impoudment of the Pucker Street Dam. My spirogyra studies have focused on the spring nearest the dam. It shows no macro signs of iron content. Those springs at the lower elevation nearer the Dowagiac River show significant iron content, i.e., stained rock/soil. These spring sources are dominated by Sphaerotilus, a filamentous sheathed bacteria.
Photographed using a Sony A7R with a Nikkor PC 85mm f/3.5 lens.