djpmapfer's Identifications
Photos / Sounds
Observer
amayakanDescription
Video: https://youtu.be/ON9Mpyp0foc
Photos are snapshots of the same individual in the video
Cell size: 6 µm in length
Site of collection: Pavilion, Takamori Higashi Park (a freshwater habitat), Sendai, Japan
Date of collection: March 28th 2021
Weather: Cloudy
Water temp.: 11.5°C
pH 6.4
Date of observation: April 24th 2021 (the collected sample in a plastic container was left near a window out of direct sunlight at room temperature until observation)
Bright field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan). The accuracy of the scale bar, which was set according to the guidance of the manual of the software (Spectman) provided for the camera, was confirmed by using a stage micrometer glass slide (1 div. = 10 µm; Wraymer, Osaka, Japan) at each magnification.
Photos / Sounds
What
Family PeranemidaeObserver
closterium_mysteriumDescription
Video: https://youtu.be/sbhyYP1B7h0
Sampling location: A water sample was collected from the bank of the Ufa River within the boundaries of Nyazepetrovsk town.
Date and time of collection: 18 Jun 2023 at 6 PM
Date and time of observation: 20 Jun 2023 at 8 PM
The sample was stored at room temperature in a plastic container.
Photos / Sounds
What
Family PeranemidaeObserver
mnold1Description
Mag. 200x
- A pond-side water sample (retentate) was taken on 01/06/2024 using a 10µ dip net to enrich for microorganisms. (The shoreline had a layer of ice about 1/4" thick that needed to be breached in order to accommodate the dipnet. The retentate contained a lot of sediment due to the shallow depth and disturbance caused by the net.) Air temp 35F.
Large (≥250µ long when near completely extended), colorless euglenoid. Long anterior flagellum. An amazing contortionist (metabolic motion), see 1-6 sequence image 2 (be sure to enlarge).
Photos / Sounds
What
Genus JenningsiaObserver
crseaquistDescription
A Lake water sample (freshwater) was taken on 11/06/2021 using a 10 micron dip net to enrich for microorganisms.
Photos / Sounds
What
Clam Shrimps and Water Fleas (Superorder Diplostraca)Observer
juanloredoDescription
Water sample collected from the river San Pedro, at Las Puentes, Meoqui, Chihuahua, at the indicated location.
The samples was collected on January 7th at 15:41. Images were acquired on January 8th.
Photos / Sounds
What
Genus JenningsiaObserver
crseaquistDescription
A Lake water sample (freshwater) was taken on 11/06/2021 using a 10 micron dip net to enrich for microorganisms.
Photos / Sounds
What
Order PeranemidaObserver
vicentefranchDescription
Probably Peranema, but no clear as some images show a red spot than could be stigma.
Photos / Sounds
What
Order PeranemidaObserver
damontigheDescription
all are from a 200ul flush from the roots of this water fern https://www.inaturalist.org/observations/35935190
Photos / Sounds
What
Salmon-Eggs (Hemitrichia decipiens)Observer
brianbaileyDescription
On a rotting log.
Photos / Sounds
What
Life (Life)Observer
juanloredoDescription
Water sample collected at river Conchos, Julimes, Chihuahua, on December 5th at the indicated location and time.
The images were acquired on December 8th.
Photos / Sounds
What
Genus JenningsiaObserver
crseaquistDescription
A Lake water sample (freshwater) was taken on 11/06/2021 using a 10 micron dip net to enrich for microorganisms.
Photos / Sounds
What
Life (Life)Observer
mnold1Place
Barn Island Wildlife Management Area - 249 Palmer Neck Rd, Pawcatuck, CT 06379, USA (Google, OSM)Description
Mag. 400x
Very small heliozoan (~10µ diamter). Actinophrys does have marine members, but I don't know how small they are. Another possibility is Ciliophrys, a small marine actinophrid heliozoan, https://www.arcella.nl/ciliophrys-infusionum/ and https://www.researchgate.net/publication/296882090_Taxonomy_and_Phylogeny_of_Heliozoa_III_Actinophryids.
From one of the main tidal channels of the salt marsh, a water sample was taken on 11/10/2021 using a 10 micron dip net to enrich for microorganisms.
Stats
- 360
