A few pond creatures
Posted: Mon Mar 13, 2023 10:14 pm
Just a few creatures that showed up in pond samples last fall. IDs are tentative - any corrections welcome.
Cheers, David
Technical: DIC, Nikon camera controlled with Capture One, high-speed flash
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1. Strobilidium sp. - sometimes very common; often attached to the substrate by an almost invisible strand; generate a huge feeding current .
2. Mallomonas sp. - seem to be different arrangements of the spines on different individuals .
3. Synura sp. surrounded by red Trachelomonas sp. - the Synura form colony balls that roll around; Trachelomonas can occur in HUGE numbers and are a food for many predators. .
4. Looks like something with a big red eye and a long schnoz; in reality, it's a predator (maybe some sort of hypotrich?) that ate a Trachelomonas; I think the mouth is at the hairy end. .
Cheers, David
Technical: DIC, Nikon camera controlled with Capture One, high-speed flash
________________________________________________________________
.
1. Strobilidium sp. - sometimes very common; often attached to the substrate by an almost invisible strand; generate a huge feeding current .
2. Mallomonas sp. - seem to be different arrangements of the spines on different individuals .
3. Synura sp. surrounded by red Trachelomonas sp. - the Synura form colony balls that roll around; Trachelomonas can occur in HUGE numbers and are a food for many predators. .
4. Looks like something with a big red eye and a long schnoz; in reality, it's a predator (maybe some sort of hypotrich?) that ate a Trachelomonas; I think the mouth is at the hairy end. .