Identificaciones de bdstaylor

Magnification of all photos: 600×
Habitat: muddy water from a partially dried-up ditch. Associated plants: Phragmites sp.
Photo taken with a Celestron PentaView Digital Microscope. According to their website, the FOV (i.e. the diagonal width) at 600× is 100 µm.
In this series of photos, this amoeba was moving up and to the right.

Video (x2 speed): https://youtu.be/ggSjMClzY5c

Cell size: approx. 16 µm in diameter (see scale bar, photo no. 5)

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 6.6-6.8

Date of observation: July 10th 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 was confirmed by using a stage micrometer glass slide (1 div. = 10 µm; Wraymer, Osaka, Japan) at each magnification.