המועדפים של maciej_wolf123
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מתצפת.ת
amayakanתיאור
Video: https://youtu.be/5h5q_rqZ2iQ
Single cell (in lorica) measures 21 µm x 6 µm
Site of collection: Katsurashima Ryokuchi south pond (a freshwater habitat), Sendai, Japan
Date of collection: September 18th 2021
Weather: Rainy
Water temp.: 21.3°C
pH 6.3
Bright field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan).
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amayakanתיאור
Video: https://youtu.be/DODeILO8WyI
Single cell (in lorica) measures 34 µm x 6 µm
Site of collection: Takamori Higashi Park (a freshwater habitat), Sendai, Japan
Date of collection: January 15th 2022
Weather: Snow/cloudy
Water temp.: 4.0°C
pH 6.0-6.2
Bright field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan).
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מתצפת.ת
amayakanתיאור
Video: https://youtu.be/SfOreliFziw
Single cell (in lorica) measures 21 µm x 6 µm
Site of collection: Katsurashima Ryokuchi south pond (a freshwater habitat), Sendai, Japan
Date of collection: September 18th 2021
Weather: Rainy
Water temp.: 21.3°C
pH 6.3
Bright field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan).
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liamraganתיאור
Truly no clue whatsoever.
Depth < 1 meter
Water Temp: 2.6 C
Seen with @stephbrulot
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מה
ביצנית אמריקאית (Pseudosuccinea columella)מתצפת.ת
liamraganתיאור
Depth < 1 meter
Water Temp: 2.6 C
Seen with @stephbrulot
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מה
סוג Hydraמתצפת.ת
liamraganתיאור
Collected as part of community science effort led by @chyland Seen with @stephbrulot
Depth < 1 meter
Water Temp: 2.6 C
4 individuals found on a Potamogeton plant
Description per Hydra collecting for citizen scientists V.3 https://www.protocols.io/view/hydra-collecting-for-citizen-scientists-14egnzonpg5d/v3?step=4
Name of the location: Spectacle Lake Provincial Park
GPS coordinates: 48.577477, -123.569649
Date and time: December 28, 2023 at 1:33 PM
Brief description of the location: Loose mud bottom lake stocked with Smallmouth Bass and 2 species of trout.
Any wildlife observed: Numerous water mites freeswimming and freshwater sponges. Area where hydras collected dense with Potamogeton amplifolius, on which the Hydras were found
Human activity observed: Myself and Steph snorkelling and a couple dogwalkers.
Description of the weather including air and water temperature: Water temp 2.6 C, air temp I think 6-8C
Number of Individuals: 4 collected, no others seen (didn't look too hard after finding these as it was freezing cold and we didn't have much left in us)
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מה
סוג Stentorמתצפת.ת
liamraganתיאור
Samples taken (not of this group)
Depth < 1 meter
Water Temp: 2.6 C
Seen with @stephbrulot
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mnold1תיאור
Mag. 400x (1-3), 200x (4)
- A pond-side water sample (retentate) was taken on 10/14/2023 using a 10µ dip net to enrich for microorganisms. Air temp 58F.
Stalked heliozoan (eukaryotic amoeboid). All 3 shells each contain 1 or 2 cysts (a survival response resulting from my refrigerating the water sample?); a living cell would have an irregular margin. The first image features the shells while the second features the connecting stalks. Perhaps the arrangement of the shells reflects a familial relationship, with the central shell representing the mother the other 2 shells, the daughters.
essential references:
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מתצפת.ת
amayakanתיאור
Video:
https://youtu.be/cMdAfHQxiCY
Cell size: 17 µm in diameter
Site of collection: Pavilion, Takamori Ryokuchi (a freshwater habitat), Sendai, Japan
Date of collection: July 4th 2021
Weather: Cloudy
Water temp.: 21.6°C
pH 6.4-6.6
Bright field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan).
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מתצפת.ת
mnold1תיאור
Mag. 400x
- A pond-side water sample (retentate) was taken on 10/14/2023 using a 10µ dip net to enrich for microorganisms. Air temp 58F.
Green amoeboid (filled with endosymbiotic Zoochlorella). I think this taxon has a single nucleus (labeled in images), and this particular nucleus candidate seems to crave recognition, popping into view like a rising sun! Another specimen of this taxon was observed from this same water sample https://www.inaturalist.org/observations/188436229. I could not identify the nucleus in this latter specimen.
Video of current specimen, https://youtu.be/F_HXMW2Nhx8.
Ref: https://arcella.nl/mayorella-viridis/
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alainmyxosתיאור
Spores 7.1 (8.7) µm
silvery membrane around stalk
TH= 2.85mm, sporocyst= 1.75mm, Ø= 0.45mm
Det., Leg. TF
AM 725
