Fotos / Sonidos

Autor

berneska

Fecha

Mayo 1, 2023 a las 04:57 PM CEST

Fotos / Sonidos

Autor

molegalake

Fecha

Mayo 24, 2017 a las 06:20 AM ADT

Fotos / Sonidos

Autor

mnold1

Fecha

Mayo 8, 2023 a las 04:35 PM EDT

Descripción

Mag. 400x
Filled with Zoochlorellae, like Acanthocystis turfacea and A. pernardi, both found locally. However. this specimen is very different in that it is covered with loose, elliptical scales (5-10µ in length). I do not see any spine-scales. The long axipodea are very granular and are, occasionally, piled high from the base with elliptical scales (40-50µ high!). The elliptical scales form a disorganizes, 10µ thick layer enveloping the entire protoplasm. The best candidate (by my eye) for an ID, at Siemensma's Microworld, is Raphidocystis ambigua https://arcella.nl/raphidocystis-ambigua/. A 2nd possibility is R. symmetrica https://arcella.nl/raphidocystis-symmetrica/, but the current specimen is much larger than those recorded by Siemensma. No reference to Zoochrorella is made in describing either taxon. I could not find a match among the Acanthocystis.

  • A water sample was taken on 5/8/2023, from the shore of Lantern Hill Pond, using a 10µ dip net to enrich for microbes. Air temp. 73°F.

Fotos / Sonidos

Autor

bert_raccoon

Fecha

Agosto 9, 2020 a las 11:04 PM EDT

Fotos / Sonidos

Autor

jwwalker

Fecha

Agosto 19, 2022 a las 07:35 PM CDT

Fotos / Sonidos

Autor

izi_izi

Fecha

Septiembre 19, 2021 a las 09:57 PM EDT

Fotos / Sonidos

Fecha

Febrero 24, 2021 a las 01:31 PM CET

Descripción

Posible Pterocystis

Fotos / Sonidos

Autor

mnold1

Fecha

Octubre 21, 2022 a las 07:51 PM EDT

Descripción

Mag. 400x
I think this is Raphidocystis pallida, because of the similarity of these 4 specimens to images here https://arcella.nl/raphidocystis-pallida/. The stacking of scales against the base of some of the axopods gives them the look of tall pine trees (https://en.wikipedia.org/wiki/Centrohelid). For an interesting video that records the movement of the central ectoplasm, see https://youtu.be/VfGL6os0Icw.

  • A water sample was taken on 10/21/2022, from the shore of one of the impoundments, using a 10µ dip net to enrich for microbes. Air temp. 65°F.
Chromista

Fotos / Sonidos

Qué

Algas Pardas Y Parientes (Reino Chromista)

Autor

dloarie

Fecha

Diciembre 14, 2020 a las 08:28 AM PST

Descripción

I say no, no, no . . .