Various bacteria flagellum @ NIC | PH | DFAriel Qassis2026-03-22 | 100x (4x crop)Colpodid with symbiotic zoochlorellaAriel Qassis2026-09-16 | From Nakik pond, central Israel. 55-80µm. 60-100x , NICLegendrea loyezae - 2026 season summaryAriel Qassis2026-09-10 | A 2-month monitoring of many Leg. loyezae specimens, sampled from "Nakik Pond" in central Israel. The attached PDF contains my insights: drive.google.com/file/d/1fzfk08K-2MRtr0msthWVDMi9ksZGUDuz/view?usp=sharing
Music by Assaf Talmudi - "Through the terminal of gloom to the gate of beauty".
00:00:00 - Legendrea loyezae - 2026 season summary 00:00:06 - Morphology 00:03:47 - Morphotypes 00:06:29 - Movement 00:13:48 - Tentacle Stretching 00:30:42 - Conjugation 00:35:04 - Fission 00:37:21 - A Probable Resting Cyst 00:39:08 - Digested Prey Remains 00:40:17 - Symbionts 00:49:44 - Regeneration 00:52:28 - Interactions 00:58:09 - Misc. Behaviours 01:01:08 - Prey CandidatesPelomyxa sp. - trailing uroidAriel Qassis2026-09-07 | Inverted, deep sealed slide, 10-40x (1.5x crop), NICMicroaquarium - species from aerobic periodAriel Qassis2026-08-31 | Inverted, deep sealed slide, 10-40x (1.5x crop), NICKentrophyllum sp. (?)Ariel Qassis2026-08-29 | From Nakik pond, central Israel. Inverted, deep sealed slide, 40x (1.5x crop), NIC. Upright, 100x, NIC | PHAphanocapsa incertaAriel Qassis2026-08-26 | Very abundant in Legendrea loyezae samples. Inverted, deep sealed slide, 4-40x (1.5x crop), NICHmmm....Ariel Qassis2026-08-18 | ...Euplotid in fluorescenceAriel Qassis2026-08-17 | Inverted, 40x dry (1.5x crop), AO & UVPelagiopyla sp. - fissionAriel Qassis2026-08-10 | Inverted, deep sealed slide, 40x (1.5x crop), NICMetopids - relaxed in their comfort zoneAriel Qassis2026-08-05 | Including loricated and fission. The dark lorica are deserted Spiretella planticola ones. Inverted, deep semi sealed slide, 20-40x (1.5x crop), NICA stalked suctorian with a metopidAriel Qassis2026-08-05 | Inverted, deep sealed slide, 40x (1.5x crop), NIC-Oxygen gradient slide - metopids scanAriel Qassis2026-08-05 | Relaxed Metopids in their comfort zone. A quick scan at a very high ISO, because of light pollution. Inverted, deep semi-sealed slide, 20x (1.5x crop), NICMetopida to Hypotrichia - oxygen gradient slideAriel Qassis2026-08-05 | This is a tour of my diy oxygen gradient slide. I've built it to allow "comfort zones" for Legendrea lozeyae and metopids. You can observe that from right to left the population changes, from metopids to hypotrichs. A later video will show how relaxed metopids are in their comfort zone. Stereo, DF | Inverted, 10x, NICPlagiopyla (megastoma?)Ariel Qassis2026-08-03 | From Nakik pond, central Israel. Inverted, deep sealed slide, 40x (1.5x crop), NICEuglenid - bacteria entourageAriel Qassis2026-08-03 | I left a timelapse overnight for something else, but it captured this nice scene instead. Inverted, deep sealed slide, 20-40x, BF | NICHeteronema spirale - metabolyAriel Qassis2026-08-02 | From Nakik pond, central Israel. Inverted, deep sealed slide, 40x (3x crop), NICRotifer eggsAriel Qassis2026-08-02 | Inverted, open coverslip, 40x (1.5x crop), upright 100x.Loricated metopidAriel Qassis2026-08-02 | From Nakik opnd, central Israel. Im not sure if its a real lorica, just a thin sheath, or perhaps preparing for encystment. Being highly photophobic, it ran quickly. Inverted, deep sealed slide, 40x (1.5x crop), NICKentrophyllum sp. - long spines and fissionAriel Qassis2026-08-01 | Several specimens, one looks in fission. From nakik pond, central Israel. Inverted, open coverslip, 40x (1.5x crop), NICSpiretella planticola - lorica variabilityAriel Qassis2026-08-01 | Documenting the variability of its lorica. Interestingly, Ive found dozens of specimens, but they always floated, and the lorica wasnt anchored. From Nakik pond, central Israel. Inverted, open coverslip, 20x (1.5x crop), NIC | PH2 litonotids - fascicola & lamellaAriel Qassis2026-07-25 | 60-100x , NICLinostomella vorticella (spp.?)Ariel Qassis2026-07-22 | Several specimens. From Nakik pond, central Israel. Petri dish and slide, 20-100x, NIC.Distigma sp.Ariel Qassis2026-07-22 | From Nakik pond, central Israel. 100x, NIC.Spiretella planticola @100xAriel Qassis2026-07-22 | From Nakik pond, central Israel. For a broader view, look for my previous video: youtu.be/4BKUrMMCuwAMetopus esAriel Qassis2026-07-17 | From Nakik pond, central Israel. 60-100x, NICClimacostomum patulum (?)Ariel Qassis2026-07-17 | Aka the euglenid shredder. Chapter 1: morphology. Notice the unique oral ciliature. Chapter 2: Half-digested Euglenids expose their pelicle strands structure. From Nakik Pond, central Israel. Free and covered.Legendrea loyezae (2026 season)Ariel Qassis2026-07-16 | A small morphotype, scan and simbiotic bacteria. From nakik pond, central Israel. 100x, NIC.Mastigamoeba sp.Ariel Qassis2026-07-16 | Inverted, sealed slide, 40x (1.5x crop), NIC | PHHeteronema spiraleAriel Qassis2026-07-16 | From Nakik pond, central Israel. Inverted, Sealed slide, 40x (1.5x crop), NIC | PHSpiretella planticolaAriel Qassis2026-07-14 | From Nakik pond, central Israel Inverted, open coverslip, 20-40x (1.5x crop), NICSpathidiid - no ID yetAriel Qassis2026-07-13 | From Nakik pond, central Israel. Inverted, Petri dish & open coverslip, 40x (1.5x crop). Upright, 60-100x, NIC.Didinium with a taste for dinoflagellateAriel Qassis2026-07-13 | Inverted, open coverslip, 40x (1.5x crop), NICUrostylid conjugationAriel Qassis2026-07-12 | 60-100x, NICBrachonella sp. - fissionAriel Qassis2026-07-12 | Notice the split MA From Nakik pond, central Israel 60-100x, NIC.Castula fusca - a majestic metopid.Ariel Qassis2026-07-12 | ~300µm, several specimens. From Nakik pond, central Israel. Inverted &upright, Petri dish, open coverslip, slide. 20-100x , NICHypotrichidium sp. - mitotic MA?Ariel Qassis2026-07-10 | The MA looks "weird", here is a reference video from a year ago, same sampling spot: youtu.be/p8bwcZtXmmQ Inverted, open coverslip, 40x (1.5x crop), NICNakik pond elephantsAriel Qassis2026-07-05 | Paradileptus elephantinus From "Nakik pond", central Israel Inverted, Petri dish, 10-40x, NICTeuthoprys sp. - morpho varietyAriel Qassis2026-07-01 | Some freshly sampled specimens, exhibit great morphological variety. Stereo, DF.Platycola sp.Ariel Qassis2026-06-20 | Platycola sp. on Ph. acuta shells. Stereo, DF | Inverted, Petri dish, 20-40x , BFVarious dileptiidsAriel Qassis2026-06-12 | Various dileptiids, from Nakik pond, central Israel. Notice the variety of MA forms. Stereo, DF. Inverted, Petri dish, 20-40x, NICAn adolescent suctorianAriel Qassis2026-06-11 | Free-floating, still bears cilia. Then, develops a stalk on the slide. Things to notice: Contractile vacuole formation and expulsion, particle movement on the tentacles and the tentacle head form. Inverted, open coverslip, 40x (1.5x crop), NIC, Upright, 100x, NIC.Paradileptus elephantinus vs conicusAriel Qassis2026-06-08 | From Nakik pond, central Israel. Inverted, open coverslip, 20-40x (1.5x crop), NICIn situ - Stentor, Euplotes, testate amoeba, OstracodAriel Qassis2026-06-04 | Mini aquarium, macro lens.A tale of patienceAriel Qassis2026-06-04 | Inverted, open coverslip, 40x (1.5x crop), NICEnchelyodon sp.Ariel Qassis2026-05-29 | From Nakik pond, central IsraelIt aint spring without TeuthophrysAriel Qassis2026-05-26 | From Nakik pond, central Israel. Inverted, Petri dish & open coverslip, 20-40x, NICTrachelius - clear view of the fossaAriel Qassis2026-05-19 | Inverted, open coverslip, 20-40x (cropped), NICLacrymaria sapropelics (2nd specimen)Ariel Qassis2026-05-18 | Nakik pond, central Israel. 60-100x, NIC.Helobdella (jawless leech)Ariel Qassis2026-05-16 | 3 specimens: An adult with eggs, an adult with a brood, and a juvenile. From Nakik pond, central Israel.Phialina pupulaAriel Qassis2026-05-15 | Nakik pond, central Israel. 100x, NIC.