View allAll Photos Tagged algae
British fresh-water algae, exclusive of Desmidieae and Diatomaceae,
London,Williams and Norgate,1882-1884.
Unidentified red algae (probable new species) at 200 feet, found at French Frigate Shoals. Photo by: Greg McFall/NOAA Office of National Marine Sanctuaries, 2012
For more information, visit www.papahanaumokuakea.gov/research/biogeographic_cruise20...
Follow us on Twitter: twitter.com/hawaiireef
Like us on Facebook: www.facebook.com/Papahanaumokuakea
Contact us by email: hawaiireef@noaa.gov
Kodak Vision2 500T (expired 2010) - Shot at 200 ISO - Sears KS-2 - 28mm f/2.8, 50mm f/1.8, 135mm f/2.8, 80-200mm f/4
Developed in Argentix C-41 kit (Unicolor rebrand)
Roll #1 of batch 2021-02.
Added a 1 minute water stop bath after dev step to wash most of the Remjet off.
Scanned on Epson V600 @ 3200dpi
That's what we're researching in some nucleo communities. #createsustainability #researchexperimentation #algae
from Damanhur Spiritual EcoCommunity, ift.tt/1lkyTJc
I spent a few minutes watching as the wind formed various patterns on the surface of the canal.
Towpath Trail - Cuyahoga Valley
Algae Bloom, 2009
Pigeon skeleton, sea urchin skeleton, bell jar, plexiglas, bronze mirror, lighting element
Amy Glengary Yang
growing, algae, duckweed, bioreaction, clarification, hydroponic fertilizer, organic, fertilizer, deep water culture, raft, zooplankton, bioponica, algosolar, trough, pipes, vertical farming, sustainable, bioreactor, biofilter, clarifier, aquaculture, tilapia, guppies, crawfish, barramundi, red claw, spirulina, ebb and flow, deep water, nft, aquaponics, hydroponics, organic, fodder, fish feed,
Unidentified red algae (probable new species) at 200 feet found at Pearl and Hermes Atoll. Photo by: Greg McFall/NOAA Office of National Marine Sanctuaries, 2012
For more information, visit www.papahanaumokuakea.gov/research/biogeographic_cruise20...
Follow us on Twitter: twitter.com/hawaiireef
Like us on Facebook: www.facebook.com/Papahanaumokuakea
Contact us by email: hawaiireef@noaa.gov
Heybridge Gravel Pits
Algae are a diverse group of aquatic organisms that have the ability to conduct photosynthesis. Certain algae are familiar to most people; for instance, seaweeds (such as kelp or phytoplankton), pond scum or the algal blooms in lakes. However, there exists a vast and varied world of algae that are not only helpful to us, but are critical to our existence.
Aerial view of an algae plume on the water surface south of Quadra Island. Yes, it was that bright. No photoshop here.
A. c. venustissimus Eibl-Eibesfeldt, 1956 – Española Island
Punta Suárez
On his visit to the islands, Charles Darwin was revolted by the animals' appearance, writing:
The black Lava rocks on the beach are frequented by large (2-3 ft), disgusting clumsy Lizards. They are as black as the porous rocks over which they crawl & seek their prey from the Sea. I call them 'imps of darkness'. They assuredly well become the land they inhabit.[3]
In fact, Amblyrhynchus cristatus is not always black; the young have a lighter coloured dorsal stripe, and some adult specimens are grey. The reason for the sombre tones is that the species must rapidly absorb heat to minimize the period of lethargy after emerging from the water. They feed almost exclusively on marine algae, expelling the excess salt from nasal glands while basking in the sun, and the coating of salt can make their faces appear white. In adult males, coloration varies with the season. Breeding-season adult males on the southern islands (Española, Floreana and nearby islets) are the most colorful and will acquire red and teal-green colors, while on Santa Cruz they are brick red and black, and on Fernandina they are brick red and dull greenish.
Another difference between the iguanas is size, which is different depending on the island the individual iguana inhabits. The iguanas living on the islands of Fernandina and Isabela (named for the famous rulers of Spain) are the largest found anywhere in the Galápagos. On the other end of the spectrum, the smallest iguanas are found on the island on Genovesa.
Adult males are up to 1.7 metres (5.6 ft) long, females 0.6–1 metre (2.0–3.3 ft), males weigh up to 1.5 kilograms (3.3 lb).
On land, the marine iguana is rather a clumsy animal, but in the water it is a graceful swimmer. This is due to the traits it has that allow it to swim and make it different from other species of iguana; its laterally flattened tail and spiky dorsal fins allow it to swim further and faster, while its long, sharp claws allow it to hold onto rocks and other materials around it when there are strong currents so that it doesn't drown or get lost/too far away from land.
Its diet consists of seaweed and algae. To make it easier for it to get these, the marine iguana has a flat snout so that it can get closer to rocks that algae is growing on, as well as sharp teeth so that it can scrape off more of the algae. It has a special gland in its snout that filters its blood for excess salt that it may ingest while eating. It sneezes out the excess salt, which often leaves a salty crust around its nostrils, one of the aspects that made it unattractive to Charles Darwin.
en.wikipedia.org/wiki/Marine_Iguana
Galápagos sea lion (Zalophus wollebaeki), Galapagos.
The Galápagos sea lion (Zalophus wollebaeki), a species of sea lion, exclusively breeds on the Galápagos Islands and – in smaller numbers – on Isla de la Plata (to Ecuador). Being fairly social, and one of the most numerous species in the Galápagos archipelago, they are often spotted sun-bathing on sandy shores or rock groups or gliding gracefully through the surf. Their loud bark, playful nature, and graceful agility in water make them the "welcoming party" of the islands.
Slightly smaller than their Californian relatives, Galápagos sea lions range from 150to 250 cm in length and weigh between 50 and 400 kg, with the males averaging larger than females. Adult males also tend to have a thicker, more robust neck, chest, and shoulders in comparison to their slender abdomen. Females are somewhat opposite males, with a longer, more slender neck and thick torso. Once sexually mature, a male’s sagittal crest enlarges, forming a small, characteristic bump-like projection on their forehead. Galápagos sea lions, compared to California sea lions, have a slightly smaller sagittal crest and a shorter muzzle. Adult females and juveniles lack this physical characteristic altogether with a nearly flat head and little or no forehead.
Both male and female sea lions have a pointy, whiskered nose and somewhat long, narrow muzzle. The young pups are almost dog-like in profile. Another characteristic that defines the sea lion are their external ear-like pinnae flaps which distinguish them from their close relative with which they are often confused, the seal. The foreflippers have a short fur extending from the wrist to the middle of the dorsal fin surface, but other than that, the flippers are covered in black, leathery skin. Curving posteriorly, the first digit of the flipper is the largest, giving it a swept-back look. At the end of each digit is a claw, usually reduced to a vestigial nodule that rarely emerges above the skin. Although somewhat clumsy on land with their flippers, sea lions are amazingly agile in water. With their streamlined bodies and flipper-like feet, they easily propel themselves through crashing surf and dangerously sharp coastal rocks. They also have the ability to control their flippers independently and thus change directions with ease, and they have more control over their body on land.
When wet, sea lions are a shade of dark brown, but once dry, their color varies greatly. The females tend to be a lighter shade than the males and the pups a chestnut brown. Born with a longer, brownish-black lanugo, a pup's coat gradually fades to brown within the first five months of life. At this time, they undergo their first molt, resulting in their adult coat
SIFT Boad member Professor Emeritus Arthur Williamson and the inventor of the project, Solray's Chris Bathurst.
Algae (seaweed) comes in three colour forms; red, brown and green. Red algaes are often chemically protected, ie they avoid being eaten by producing toxic and unpalatable chemicals. Some red algaes are also physically protected; they produce calcium carbonate (limestone) in their tissues. Red algae can live in deeper waters than green or brown algae
From their website: "The orange, velvety 'stuff' especially noticeable on trees and rocks of the shadowed north-facing slopes is green algae named Trentepohlia. Its orange color comes from carotene, a pigment which also occurs in carrots. The growth does not harm the trees." Point Lobos State Reserve, Monterey CA.
Desolation Valley Wilderness 1993
These mini-tarns dry up in summer and become flower gardens.
As it warms in June a nice pink algae colonizes the snow in places.
Pyramid Peak at 10k ft. in the background.
Thomas McDowell aged 8
A refuge from refuse.
Honorable Mention: Thomas McDowell, age 8, "A Refuge from the Refuse." According to Thomas's mom, Deanna, "photography is a new hobby for [Thomas]. He is an avid bird watcher and used to sketch birds, but has found photography to suit his bird watching habits better. He photographed a lot of fledglings this spring, while keeping an eye out for roaming neighborhood cats too, and his hobby has really taken off! The creek where he took the shot is through a neighborhood where we ride bikes. When I told him about the photography contest he thought of this waterway immediately and was eager to go stake out a spot. It is about 2 ½ miles from our house. When we approached the area, all of the turtles jumped in. Patiently, he waited on the banks behind a wax myrtle bush and one by one they returned to their sunny spots. We often see heron and osprey feeding around the area. He is very passionate about nature. Our family sponsors an oyster float through CBF on the Elizabeth River where we kayak, and he participates in numerous litter pick ups with cub-scouts. He recently had a letter to the editor published in our local paper urging smokers to not litter their cigarette butts."