northernphytoid's Identifications
Photos / Sounds
Observer
amayakanDescription
Cell size: 10-14 µm in diameter
Site of collection: Katsurashima Ryokuchi (a freshwater habitat), Sendai, Japan
Date of collection: June 5th 2021
Weather: Sunny
Water temp.: 22.0°C
pH 6.7
Date of observation: June 19th 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).
Photos / Sounds
Observer
amayakanDescription
Video: https://youtu.be/BRameY00HtQ
Cell size: 6-16 µm in length
Site of collection: Katsurashima Ryokuchi (a freshwater habitat), Sendai, Japan
Date of collection: June 5th 2021
Weather: Sunny
Water temp.: 22.0°C
pH 6.7
Date of observation: June 19th 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).
Photos / Sounds
What
Genus CoelastrumObserver
amayakanDescription
Cell size, 6 µm in diameter; Colony size, 20 µm in diameter
Site of collection: Pavilion, Takamori Ryokuchi (a freshwater habitat), Sendai, Japan
Date of collection: March 12th 2022
Weather: Sunny
Water temp.: 7.8°C
pH 6.3
Date of observation: March 21st 2022 (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 was confirmed by using a stage micrometer glass slide (1 div. = 10 µm; Wraymer, Osaka, Japan) at each magnification.
Photos / Sounds
What
Genus EudorinaObserver
amayakanDescription
Cell size: 9 µm in diameter
Site of collection: Pavilion, Takamori Ryokuchi (a freshwater habitat), Sendai, Japan
Date of collection: March 12th 2022
Weather: Sunny
Water temp.: 7.8°C
pH 6.3
Date of observation: March 21st 2022 (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 was confirmed by using a stage micrometer glass slide (1 div. = 10 µm; Wraymer, Osaka, Japan) at each magnification.
Photos / Sounds
What
Family PhormidiaceaeObserver
sally3142Description
moving across stationary strand of ?Anabaena? -- (40x objective) in culture from barky damp soil/puddle sample collected 3 April, 2024
Photos / Sounds
Observer
will_heltDescription
Sample taken by plankton tow as part of the Providence Stormwater Innovation Center's participation with Cyanoscope
Photos / Sounds
What
Genus OedogoniumObserver
strangwayDescription
Balkam Creek. This specimen was attached to a rock, hair-like, and visible to the naked eye (approximately >30 cm long and <5cm wide).
Oedogonium. An unbranched, filamentous green with a net-like chloroplast lying against the edge of the cell; and is pretty easy to identify because some cells will have one or more ring-like growths at their distal end (see picture). This genus is commonly found in a variety of freshwater habitats (e.g. lakes, ponds, streams, marshes) where it is usually attached to rocks or aquatic plants.
Photos / Sounds
Observer
strangwayDescription
Balkam Creek. Periphyton collected by scraping a rock that had a green biofilm.
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