There's a small vernal pool on the pathway at the top of the mesa. It was teaming with fairy shrimp. I've never seen shrimp in that pool since. In fact, I don't even see the pool in most years. Tentatively IDed as the San Diego Fairy Shrimp, based on geography and consultation with one D.C. Rogers.
I suppose there are more pools on the mesa, beyond the fence line.
Crazy cool! Strangely, this ephemeral pool was filled with them, and we couldn't find them anywhere else in the area, including other ephemeral pools.
found a small granite cave at the tide pools--maybe 10x10 with 15' ceilings.
The rough slope of the wall made some small pools--this one perhaps 8"x6".
These small white organisms were floating/skimming on top of the water and would jump like fleas...
so, I'm assuming it's a type of water flea?
One of the Cladocera? Something else? I thought water fleas weren't typically in salt water...
Picture of small pool, many individuals in small pool on granite outcrop. Keyed to genus using Thorp and Covich.
From pond survey
Daphnia, Cyclops, Ostracods
The dark dots in the upper right of the picture were all Daphnia sp. - very active, darting jerkliy.
Aquatic invertebrate survey - El Polin
Tadpole shrimp (genus Triops, probably longicaudatus). Stock pond at El Malpais National Monument, Cibola Co., New Mexico, USA.
Triops longicaudatus is apparently the common widespread Triops in most of NM (B. Lang, pers. comm.).
First time I've seen Clam Shrimp in a pothole, though I've looked for years!
The "Lago di Pilato" is a lake in a deep u-shaped valley below Monte Vettore, a mountain in the Italian Central Apennines.
There are two basins that sometimes are connected. When I took the picture, in June 2007, the two basins were not connected.
The two basins were connected in June 2009 (?), see this picture http://www.flickr.com/photos/33434902@N04/3624776024/ by Fabrizio Di Meo.
A plate I created for David Paton's tome on the Coorong and Lower Lakes "At the End of the River". The reality is that what happens upstream has a direct impact upon these critters at the end of the Murray Darling river basin. As most of us go about our daily routine consuming food and waters form the river system spare a though for the impact downstream… most of us don’t even know these critters exists or what they do… in fact scientists are still trying to answer these questions… interested? Find a copy of “At the End of the River” and add a slice of reality to your world. Enjoy the images! http://atfpress.com/atf-press/at-the-end-of-the-river.html The images were taken with a modified Logitech Webcam Pro 9000 coupled with an Olympus dissecting microscope. Multiple depths of field were combined using Helicon Focus and post production was completed in Photoshop CS2.