Alicia, David, and Mel take the stream width at the bottom of their first sampling site.
Tag Archives: Streams
Altering flow of Río Java
Confluence of Río Java and Quebrada Cunsingo
Underwater photography
John, an Austrailian visiting Las Cruces, set up his camera on a piece of bamboo to get some underwater shots of fish. There were a few good ones of characids investigating the camera. He intends on pioneering this method in stream ecology circles.
Dam along Río Java
The streams at Las Cruces are fairly impacted. There are a handful of smaller streams (1st-2nd order) that drain only secondary or primary forest, but most of the larger streams run through some abandoned pasture or have some sort of flow management impact like this one. My students are interested in water quality, so these impacts make for good gradients to survey.
Rio Hitoy
An awesome shrimp
In Río Hitoy, there is a peculiar shrimp. It seems to inhabit cobble-dominated, high current velocity, areas of the river. I don’t know what it is or what it does, but it’s chelae are modified into large, hook-like structures.
UPDATE: I found a paper describing shrimp found in Boca Del Toro, Panama, which is pretty close to Hitoy. I had asked a friend, Bernald, which family of tropical shrimp may not have chelae (pinchers), and he suggested Atyidae. The paper describes Atyids, including Atya scabra, which is widely distributed (Aftrica to Panama) and looks similar to this species… so, we’ll call it Atya scabra…
Camping with Éva
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Sweetwater Creek State Park
One of the few opportunities I’ve had recently to leave the city – Sweetwater Creek State Park surrounds a section of the river and upstream reservoir along with 9 miles of fairly rough, beautiful trails. I look forward to seeing this place during the spring and summer, where browns are less abundant…
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Chattahoochee National Forest-Cooper Creek
A trout-stocked stream and adjacent trail near the Cooper Creek campground in Northern Georgia.
