Search found 193 matches
- Sat Apr 20, 2024 5:23 pm
- Forum: Pictures and Videos
- Topic: Pleuronema ciliate
- Replies: 4
- Views: 136
Re: Pleuronema ciliate
P. coronatum ?
- Tue Apr 16, 2024 6:06 pm
- Forum: Pictures and Videos
- Topic: Green diatom in the DIC technique.
- Replies: 4
- Views: 269
Re: Green diatom in the DIC technique.
Hello,
I don't believe this is a diatom.
It is a desmid, namely Closterium spec.
A symmetrical algae.
Grtz,
WWWW
I don't believe this is a diatom.
It is a desmid, namely Closterium spec.
A symmetrical algae.
Grtz,
WWWW
- Sun Mar 17, 2024 5:29 am
- Forum: Pictures and Videos
- Topic: Draparnaldia
- Replies: 2
- Views: 244
Re: Draparnaldia
very interesting, good detective work !
- Mon Mar 11, 2024 9:06 pm
- Forum: Pictures and Videos
- Topic: Two unique looking alage specimens
- Replies: 1
- Views: 174
Re: Two unique looking alage specimens
Hi,
Pediastrum duplex: ok
THe other one is a Cosmarium spec., but which one ?
greetz,
Wim
Pediastrum duplex: ok
THe other one is a Cosmarium spec., but which one ?
greetz,
Wim
- Thu Mar 07, 2024 7:26 am
- Forum: Identification help
- Topic: which sigmoid diatom is this?
- Replies: 3
- Views: 816
Re: which sigmoid diatom is this?
Hi,
Maybe lookup Nitzschia sigmoidea ?
Greetz,
WWWW
Maybe lookup Nitzschia sigmoidea ?
Greetz,
WWWW
- Thu Feb 15, 2024 7:12 pm
- Forum: Pictures and Videos
- Topic: New for me: Dendrosoma_radians a Suctoria
- Replies: 6
- Views: 512
Re: New for me: Dendrosoma_radians a Suctoria
Suctoria are ciliates that became sessile and waiting on a prey swimming by.
When a prey (mostly other ciliates) touches the tentacles they are sucked empty.
see: https://en.wikipedia.org/wiki/Suctoria
When a prey (mostly other ciliates) touches the tentacles they are sucked empty.
see: https://en.wikipedia.org/wiki/Suctoria
- Wed Feb 14, 2024 4:22 pm
- Forum: Pictures and Videos
- Topic: New for me: Dendrosoma_radians a Suctoria
- Replies: 6
- Views: 512
Re: New for me: Dendrosoma_radians a Suctoria
Hello Don,
I removed the other info
I removed the other info
- Wed Feb 14, 2024 12:27 pm
- Forum: Pictures and Videos
- Topic: New for me: Dendrosoma_radians a Suctoria
- Replies: 6
- Views: 512
New for me: Dendrosoma_radians a Suctoria
Today I found a strange tree-like organism.
Determination was not difficult, there is only one I could find.
Here a short video of this organism
Determination was not difficult, there is only one I could find.
Here a short video of this organism
- Wed Jan 17, 2024 8:17 pm
- Forum: Identification help
- Topic: Flagellate (Urceolus sabulosus ?) with opposite flagella
- Replies: 1
- Views: 1047
Flagellate (Urceolus sabulosus ?) with opposite flagella
A flagellate unknown to me. It looks a bit like Uceolus sabulosus, but it has two flagella and also lives in a house covered with pebbles. However, this species has two oppostie flagella and they are not working together. If the flagella is used at the front, the flagellate moves forward. The flagel...
- Sat Jan 13, 2024 10:16 am
- Forum: Pictures and Videos
- Topic: Amoeba Arcella
- Replies: 13
- Views: 1843
Re: Amoeba Arcella
The rectangular structures are possibly the cells of the desmid: Bambusina borreri (= Bambusina brebissonii)
See: https://www.desmids.nl/maand/nederlands ... sonii.html
And of course: https://youtu.be/QxyQN2KNWb0
See: https://www.desmids.nl/maand/nederlands ... sonii.html
And of course: https://youtu.be/QxyQN2KNWb0
- Sun Dec 24, 2023 2:31 pm
- Forum: Identification help
- Topic: Looks like Litonotus Fasciola but I have doubts
- Replies: 2
- Views: 1255
Re: Looks like Litonotus Fasciola but I have doubts
It's a Spathidium, but which one ???
- Wed Dec 20, 2023 9:57 pm
- Forum: Pictures and Videos
- Topic: Trichodina, an ectoparasitic ciliate on a snail
- Replies: 3
- Views: 778
Re: Trichodina, an ectoparasitic ciliate on a snail
Beautiful videos, very sharp en colourful.
I found this one on Hydra.
I found this one on Hydra.
- Wed Dec 20, 2023 7:18 am
- Forum: Beginner's corner
- Topic: Best size objective for Pond life?
- Replies: 36
- Views: 58163
Re: Best size objective for Pond life?
Hi,
I like looking to pond life too and use:
- 4x (overview, scanning)
- 10x 20x 40x
- 60x (difficult if the specimen is too tick)
WWWW
I like looking to pond life too and use:
- 4x (overview, scanning)
- 10x 20x 40x
- 60x (difficult if the specimen is too tick)
WWWW
- Sun Dec 17, 2023 7:19 pm
- Forum: Pictures and Videos
- Topic: Loxophyllum ciliate
- Replies: 8
- Views: 2504
Re: Loxophyllum ciliate
Wow, good footage
- Fri Oct 27, 2023 8:34 am
- Forum: Pictures and Videos
- Topic: A ciliate from a lake
- Replies: 7
- Views: 938
Re: A ciliate from a lake
Hello,
I think it's a water flea
I think it's a water flea
- Wed Oct 18, 2023 12:33 pm
- Forum: Pictures and Videos
- Topic: The desmid Euastrum verrucosum
- Replies: 3
- Views: 1094
Re: The desmid Euastrum verrucosum
Wow, very beautiful pictures !
- Tue Sep 19, 2023 6:49 am
- Forum: Pictures and Videos
- Topic: A charming large ciliate new to me! Encountered in my mesocosm.
- Replies: 4
- Views: 577
Re: A charming large ciliate new to me! Encountered in my mesocosm.
Charlie G,
excellent images !
I think it is Loxophyllum meleagris, with the typical bundeld trichocysts.
WWW
excellent images !
I think it is Loxophyllum meleagris, with the typical bundeld trichocysts.
WWW
- Sat Aug 12, 2023 9:18 am
- Forum: Pictures and Videos
- Topic: Stentor muelleri
- Replies: 2
- Views: 444
Stentor muelleri
Seen another species of Stentor that is new to me.
It is Stentor muelleri, a colorless species with a rosary nucleus.
It is Stentor muelleri, a colorless species with a rosary nucleus.
- Fri Aug 11, 2023 3:12 pm
- Forum: Identification help
- Topic: What are these small cells ?
- Replies: 2
- Views: 1471
Re: What are these small cells ?
Hi jmp,
you could well be right. The sphere is about 100 μm in diameter and the individual cells about 5-8 μm long.
I didn't know about fungus zoospores, but an internet search led me to similar structures.
Thank you for your comment.
WWWW
you could well be right. The sphere is about 100 μm in diameter and the individual cells about 5-8 μm long.
I didn't know about fungus zoospores, but an internet search led me to similar structures.
Thank you for your comment.
WWWW
- Thu Aug 10, 2023 8:42 pm
- Forum: Identification help
- Topic: What are these small cells ?
- Replies: 2
- Views: 1471
What are these small cells ?
Recently seen these strange cells in a sample of fresh water. At first they swam through each other at high speed surrounded by a spherical shell. After a few minutes they began to escape and swam around at the same high speed. Unfortunately I was not able to take a good picture of them. Anyone have...
- Thu Aug 10, 2023 3:27 am
- Forum: Identification help
- Topic: Unknown Euglena
- Replies: 4
- Views: 1326
Re: Unknown Euglena
Thanx again.
- Tue Aug 01, 2023 3:32 pm
- Forum: Identification help
- Topic: Unknown Euglena
- Replies: 4
- Views: 1326
Re: Unknown Euglena
Thank you Bruce,
First I thought you are joking
I continue to find these Euglena species very difficult to identify. They have no fixed shape and the shape keeps changing. No special characteristics either.
Do you perhaps have a book or a web site where I can find them ?
Greetings,
WWWW
First I thought you are joking
I continue to find these Euglena species very difficult to identify. They have no fixed shape and the shape keeps changing. No special characteristics either.
Do you perhaps have a book or a web site where I can find them ?
Greetings,
WWWW
- Thu Jul 27, 2023 6:34 pm
- Forum: Identification help
- Topic: Unknown Euglena
- Replies: 4
- Views: 1326
Unknown Euglena
I know it's an Euglena species, a highly metabolic specimen.
The fact that it has no fixed shape always makes identification difficult.
Maybe someone here has an idea what the name is ?
The fact that it has no fixed shape always makes identification difficult.
Maybe someone here has an idea what the name is ?
- Tue Jul 25, 2023 3:52 am
- Forum: Microscopes and optics
- Topic: Field Microscope Collection
- Replies: 10
- Views: 2053
Re: Field Microscope Collection
It is a very nice collection !
- Sat Jul 15, 2023 5:42 pm
- Forum: Pictures and Videos
- Topic: I accidentally found anintermediate amoeba
- Replies: 2
- Views: 536
Re: I accidentally found anintermediate amoeba
Nice video and good information.
It's indeed a wonderful book for indentifing organisms, with beautiful photos.
On the website www.arcella.nl you will find more information !
It's indeed a wonderful book for indentifing organisms, with beautiful photos.
On the website www.arcella.nl you will find more information !
- Fri Jun 30, 2023 9:26 am
- Forum: Pictures and Videos
- Topic: My first Hydra
- Replies: 5
- Views: 799
Re: My first Hydra
Well done !
- Tue Jun 27, 2023 2:47 pm
- Forum: Pictures and Videos
- Topic: Stentor amethystinus
- Replies: 5
- Views: 773
Re: Stentor amethystinus
@josmann, I know that more is possible than normal BF. But I think it is important that people who are just starting with microscopy and who do not yet own such an expensive microscope or special filters also have an idea of what they are seeing. That's why I mainly use BF. Of course DF gives very i...
- Sat Jun 24, 2023 6:12 am
- Forum: Pictures and Videos
- Topic: Stentor amethystinus
- Replies: 5
- Views: 773
Stentor amethystinus
A few days ago I took a water sample from a pond. In the tube, there seemed to be only black stuff in it. Under the microscope, however, this appeared to be a species new to me ! It was Stentor amethystinus, another new trumpet animal found ! They were present in huge numbers that caused the black c...
- Sat Jun 24, 2023 6:00 am
- Forum: Pictures and Videos
- Topic: Pond snails - embryonic development through hatching
- Replies: 1
- Views: 373
Re: Pond snails - embryonic development through hatching
Macnmotion,
very nice footage !
very nice footage !
- Sat Jun 24, 2023 5:58 am
- Forum: Pictures and Videos
- Topic: Petalomonas
- Replies: 0
- Views: 336
Petalomonas
Sometimes in a water sample I come across this inconspicuous fellow.
Usually they lie still, but sometimes they swim a short distance and then you see the one flagellum move.
Usually they lie still, but sometimes they swim a short distance and then you see the one flagellum move.