View allAll Photos Tagged algae
This species of Green Algae usually appears black to me, like a mass of tar, but some places it must look more green.
At minus tide, North Point, Morro Strand State Beach,
Morro Bay, California
Ahora en Biodiversidad virtual y hace poco en El País -en pdf- gracias a Elisabet Sans. También en la web de la Fundación Biodiversidad
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Closterium toxon es como todas las algas de este género un alga de sonrisa, cada una lleva su gesto, la de hoy no tan abierta como la de Closterium lunula ni tan fina como la Closterium acutum, pero a fin de cuentas también sonrisa.
Closterium toxon es de figura esbelta y tiene contorno de arco como su hermana Closterium dianae, pero es de trazos más rectos y angulosos que ella. Se trata de un désmido que, aunque muy frecuente en las aguas de la Laguna de Peñalara no parece estar presente en otras localidades de montaña del interior de la Península.
A lo largo de su interior, perfectamente orientados en línea se disponen de 12 a 14 pirenoides, que como en todos los désmidos, almacenan sustancias de reserva y rematan sus extremos dos pequeñas vacuolas cargadas de cristalitos con sales de calcio hacen de balancín, para que el alga se mantenga flotando en equilibrio y la sonrisa no se tuerza.
En esta ocasión Closterium ha venido acompañando a otras algas hermanas, estrellas acuáticas como Euastrum y Micrasterias con las muestras recogidas en unas praderas inundadas de las inmediaciones de la Laguna de Peñalara y como todos los seres encontrados en ellas va dedicada a todos estos amigos con quienes tuve la suerte de compartir este maravilloso proyecto de Biodiversidad virtual. La fotografía se ha tomado a 400 aumentos empleando la técnica de contraste de interferencia.
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☁ la nube negra de una justicia pervertida en nuestro país, movida por la envidia y la venganza, permanecerá aquí, hasta que soplen los vientos limpios que todos necesitamos. La Justicia es uno de los cimientos necesarios para la Paz. Desde aquí todo nuestro apoyo al Juez Baltasar Garzón -el buen Juez de Saramago- y a las personas de buena voluntad como él que trabajan por la Justicia.
Primordial (adj.) - Latin, "first of all, original". A large planter filled with water became covered with a sheet of algae. When I poured the water out, the algae draped over the bedraggled remains of the planter's shrub, trapping bubbles. The late afternoon light, filtered through these agglutinous films, presented a most peculiar aspect. I imagine it as the dawn of life, with primitive unicellular creatures emerging from the primordial ooze and creeping towards the sun...
A slow-moving waterfall of green moss, algae, and ferns inside an abandoned building in County Mayo, Ireland.
For my best shots of 2023, go here: www.flickr.com/photos/191087541@N02/albums/72177720308859...
Captured these Black Swans cruising around this algae coated lake during a birding session at Hunter Wetlands Center (Shortland, NSW, Australia) a couple of days ago.
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Have a great day and weekend folks!!
It is amazing what you can see in pond scum. The algae can be seen growing in strands inside these bubbles. best viewed large.
At low tide, and after several sunny days, the colorful images you can find at the rock formations close to the sea are quite amazing!
Ryburn Reservoir
Blue-green algae is a term used to describe a group of bacteria called cyanobacteria. They are not actually algae, the organisms got this name because they often give the appearance of algae when they clump together in bodies of water. They cannot be seen with the naked eye until they do clump together, giving them the appearance of pea soup. Blooms of the organisms often build up around the edges of ponds, lakes and reservoirs, usually when it’s very warm and with no wind.
There are warning notices by the reservoir wall of its presence in this body of water, we’ve seen it before on occasions but never like this, it was almost covering the entire surface. It’s not often we have a day with no wind at all, the only movement on the water today were the ripples created by a few ducks swimming around.
The bacteria is harmful to pets and humans, but despite the very high profile notices telling people to keep out of the water, we’ve seen people swimming in here all through the summer.
Thank you for your visit and your comments, they are greatly appreciated.
A first for me to see Red Algae on a waterhole in South Africa. It didn't bother several Impala who we watched drinking.
On Sunday, Larry and I finally dropped down to Cape May to walk around the nature trails near the lighthouse. The temperatures had dropped about 10 degrees, and it was ONLY a balmy 88 degrees in the shade.
By the time we got done our walk and got back in the car I was just a puddle of sweat.
Not much doin' down there......just saw the regulars....mallards, white herons, snowy egrets, and of course the ever present Mute Swans.
I'm sure there were other species hidden away out in the marshes, but it was just too hot for anything much to be moving around.....just the crazy people on the trail (Larry and I only passed one other group of people on the trail as crazy as we were to be out there!)......probably would have been much better 1st thing in the a.m.
There is a TON of algae in the ponds this year.
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