Fotos / Sons

Observador

dgborin

Data

Abril 7, 2024 11:54 AM CEST

Descrição

Inside moss fallen from a roof. Sample taken a couple of months ago.

Fotos / Sons

Observador

andreabenocci

Data

Maio 2024

Fotos / Sons

Observador

andreabenocci

Data

Maio 2024

Fotos / Sons

Observador

dgborin

Data

Janeiro 1, 2023 11:00 PM CET

Descrição

My first attempt at diatoms cleaning.

Three specimens observed, from the same sample of my previous observation https://www.inaturalist.org/observations/141202070 taken on 2022-11-05.

Stria density: 7-8 per 10 μm (center), 10-11 (extremities).
Puncta density: 11 per 10 μm.
Length 213-225 µm, width 41-44 µm.

Stigmata visible near the central nodule.

According to Diatoms of Europe vol.3 by Kurt Krammer, 2002, it looks like Cymbella peraspera:
“Valves moderately to distinctly dorsiventral, dorsal margin rather evenly arched, ventral margin with a slightly gibbous central portion. Valve ends not protracted and broadly rounded. Length (130)154-320 µm, breadth 44-52 µm, maximal length/breadth ratio about 6. Axial area moderately wide, linear, widening at mid-valve to form a shallow central area, about ¼ to nearly ⅓ of the valve breadth. Raphe slightly lateral, tape ring near proximal and distal ends, becoming filiform near the proximal and the distal ends. Proximal raphe ends with moderately large roundish central pores which are slightly ventrally deflected; terminal fissures sickle-shaped and dorsally bent. Striae throughout radiate. Puncta distinctly and more or less roundish in focus high and low. A large number of stigmata on the ventral side of the central nodule, in focus low differently shaped from the puncta, commonly distant from the middle ventral striae. Striae 5-8/10 µm, becoming up to 10/10 µm near the extremities. Puncta 7-10(11) in 10 µm.”

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Observador

marcohuang

Data

Julho 2, 2023 05:35 PM CEST

Fotos / Sons

Observador

gaetanjouvenez

Data

Março 2024

Lugar

Italy (Google, OSM)

Fotos / Sons

Observador

luigitorino

Data

Março 9, 2024 05:35 PM CET

Fotos / Sons

Observador

pietromaiorana

Data

Maio 1, 2022

Fotos / Sons

Observador

giuseppe_molinari

Data

Dezembro 27, 2023 07:09 PM CET

Fotos / Sons

Observador

gabrivauda

Data

Dezembro 2023

Fotos / Sons

Data

Novembro 2020

Descrição

Stesso punto, stessa parete.

Le 2 foto sono state scattate a distanza di 7 anni.
La prima è del 2013 la seconda del 2020.
La terza è dell'8 agosto 2023

Il sito si trova a circa 18 metri di profondità

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Observador

tapatino

Data

Maio 23, 2018 08:31 PM CEST

Fotos / Sons

Observador

nicola_zanetti

Data

Abril 16, 2023 09:19 AM CEST

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Observador

alberto_gie

Data

Março 2023

Fotos / Sons

Observador

valentinabuono

Data

Outubro 30, 2022 09:34 PM CET