Gallery

Filamentous bloom-forming cyanobacterium Dolichospermum smithii, Lipno Reservoir, August 2023 ID: 648

Filamentous bloom-forming cyanobacterium Dolichospermum smithii, Lipno Reservoir, August 2023 ID: 646

Filamentous bloom-forming cyanobacterium Dolichospermum smithii, Lipno Reservoir, August 2023 ID: 647

Filamentous bloom-forming cyanobacterium Dolichospermum smithii, Lipno Reservoir, August 2023 ID: 645

Filamentous bloom-forming cyanobacterium Dolichospermum smithii, Lipno Reservoir, August 2023 ID: 644

Phytoplankton dominated by green algae Nephrocytium, Planktosphaeria, desmids Staurastrum and cyanobacteria Woronichinia and Chroococcus, Vrchlice Reservoir, September 2021 ID: 564

Phytoplankton dominated by a green alga Nephrocytium, Vrchlice Reservoir, September 2021 ID: 562

Phytoplankton dominated by a green alga Nephrocytium, Vrchlice Reservoir, September 2021 ID: 563

Planctonic desmid Staurastrum, Vrchlice Reservoir, September 2021 ID: 561

Periphytic filamentous red alga from the genus Batrachospermum, lake Laka, November 2020 ID: 499

Periphytic filamentous red alga from the genus Batrachospermum, lake Laka, November 2020 ID: 498

Periphytic filamentous red alga from the genus Batrachospermum, lake Laka, November 2020 ID: 497

Cells of colonial planktonic protist Ophridium versatile ID: 343

Microscopic view on a gelly colony of the rare planktonic protist Ophridium versatile ID: 342

Microscopic view on a gelly colony of the rare planktonic protist Ophridium versatile ID: 341

Microscopic view on a gelly colony of the rare planktonic protist Ophridium versatile ID: 340

Cells of colonial planktonic protist Ophridium versatile ID: 339

Desaturated image of the Lugol solution preserved sample of triangle-shaped green alga from genus Tetraedron ID: 338

Desaturated image of the Lugol solution preserved sample of green algae from genera Tetraedron, Scenedesmus and Cosmarium ID: 337

Desaturated image of the Lugol solution preserved sample of green algae from genera Tetraedron and Cosmarium ID: 336

Unicellular haptophyte Diacronema noctivaga ID: 250

Colonial green algae from genera Coelastrum and Eudorina ID: 206

Colonial green algae from genera Planktosphaeria and Eudorina ID: 205

Empty shells of the diatom from the genus Navicula ID: 204

Colonial green alga from the genus Quadrigulla ID: 203

Daphnia galeata, one of the most common examples of freshwater crustacean zooplankton ID: 202

Predatory rotifer from the genus Asplanchna ID: 201

Small colonies of the cyanobacterium Woronichinia naegeliana ID: 200

Planktivorous cilliate with ingested algae (Staurastrum) ID: 199

Gelatinous colony of the green alga from the genus Kirchneriella ID: 198

Cells of the cultivated cyanobacterium from the genus Chroococcus ID: 197

Cells of the cultivated cyanobacterium from the genus Trichormus ID: 196

Cells of the cultivated cyanobacterium from the genus Trichormus ID: 195

Big cells of an unspecified soil green alga ID: 194

Cells of the cultivated cyanobacterium from the genus Chroococcus ID: 193

Unspecified thin cyanobacterial filaments ID: 192

Red filament of the cyanobacterium Planktotrix rubescence ID: 191

Red filament of the cyanobacterium Planktotrix rubescence ID: 190

Red filament of the cyanobacterium Planktotrix rubescence ID: 189

Net phytoplankton dominated by chrysophytes Mallomonas and green algae Quadrigulla ID: 188

Big colony of the flagellated green alga Volvox aureus ID: 187

Big cells of the planktonic chrysophyte from the genus Mallomonas ID: 186

Colonial cyanobacterium Microcystis wesenbergii ID: 185

Green alga from the genus Chlorella used as a dietary supplement ID: 184

Colonial chrysophyte from the genus Dinobryon ID: 183

Planktonic desmids (Cosmarium, Staurastrum) dominate summer phytoplankton in a meso-eutrophic reservoir ID: 182

Periphytic filamentous red alga from the genus Batrachospermum ID: 181

Cells of the cyanobacterium from the genus Aphanothece ID: 180

Low-magnified view on cyanobacterial bloom dominated by the genus Aphanizomenon ID: 179

Low-magnified view on cyanobacterial bloom dominated by the genus Aphanizomenon ID: 178

Filamentous cyanobacterium Dolichospermum circinalis ID: 177

Planktonic copepod from the genus Thermocyclops ID: 176

Predatory rotifer from the genus Asplanchna ID: 141

Colonial planktonic cyanobacterium Woronicinia naegeliana (brown colonies) and green algae from genera Dictyosphaerium and Planktosphaeria ID: 128

Mixture of cyanobacteria (brown colony), desmids (green triangles), green algae (green and red colonies) ID: 127

Air bubbles on the microscopic glass ID: 126

Red coloured zygotes of the green flagelate Volvox aureus ID: 125

Detail view on a colony of the green alga Botryococcus braunii in false colours ID: 124

Periphytic green alga from the genus Tetraspora inhabiting lotic environments ID: 123

Mixture of colonial green algae Oocystis marssonnii, Willea vilhelmii ID: 122

Coiled filaments of the planktonic cyanobacterium Dolichospermum curvatum ID: 121

Colony of a cyanobacterium Microcystis wesenbergii surrounded by distinct mucilaginous sheath ID: 120

Coiled filaments of planktonic diatom from the genus Aulacoseira ID: 119

Polyphemus pediculus, a typically littoral predatory cladoceran ID: 118

Flagellated colonies of a tropical scum-forming green alga Pleodorina indica ID: 117

Gelatinous colonies of the green alga Planktosphaeria gelatinosa with chytrid infection ID: 116

Small colony of one of the most common bloom-forming cyanobacterium Microcystis aeruginosa ID: 115

Planktonic euglenoid Phacus orbicularis ID: 114

Fluorescence staining of Si uptake in diatoms (green colour) ID: 113

Common water ciliate from the genus Paramecium ID: 112

Planktonic copepod from the genus Thermocyclops ID: 111

Common colonial bloom-forming cyanobacterium Dolichospermum lemmermannii ID: 110

Erythrocytes ID: 109

Parallel arrangement of cyanobacterial filaments of Dolichospermum planktonicum ID: 108

Planktonic diatoms Asterionella formosa (star-like shape) and Aulacoseira (filamentous) ID: 107

Mixture of various chlorococcal green algae ID: 106

Colonial bloom-forming cyanobacterium Woronichinia naegeliana ID: 105

Dinoflagelate from the genus Peridinium along the filamentous diatom from the genus Melosira ID: 104

Three dimensional spiral filaments of planktonic cyanobacterium Dolichospermum ID: 103

Mixture of planktonic cyanbacteria from the genus Dolichospermum (filaments) and Microcystis viridis (colonies) ID: 102

Filamentous planktonic cyanbacterium from the genus Dolichospermum ID: 101

Mixture of planktonic rotifers (Keratella cochlearis, Filinia longiseta, Brachionus angularis a Trichocerca sp.) ID: 100

Small colonies of a common bloom-forming cyanobacterium Microcystis wesenbergii ID: 99

Colonial planktonic green algae Dyctiosphaerium and Dimorphococcus ID: 98

Detail view on filtration aparatus of freshwater cladoceran ID: 97

Invasive tropical bloom-forming cyanobacterium Cylindrospermopsis raciborskii ID: 96

Due to its hexagonal structure, a green alga Hydrodictyon is called a water net. Its colonies can extend several decimeters ID: 95

Planctonic green flagelate from the order Volvocales with distinct mucilaginous sheats ID: 94

Planctonic green alga with distinct mucilaginous sheats ID: 93

Small colonies of a planktonic cyanobacterium from the genus Gomphosphaeria ID: 92

Small colonies of a planktonic cyanobacterium from the genus Gomphosphaeria ID: 91

Fluorescence staining of Si uptake in diatoms (green colour) ID: 90

Filter-feeding cladoceran Daphnia ambigua ID: 89

Siliceous frustules of Cymbella diatom are commonly attached to various submerged surfaces by polysacharide stalks ID: 88

Colonial rotifer from the genus Conochilus ID: 87

Filter-feeding planktonic cladoceran Ceriodaphnia ID: 86

Air bubbles on the microscopic glass ID: 85

Detail view on the invasive freshwater bryozoan Pectinatella magnifica ID: 84

Filamentous planktonic diatom Aulacoseira ID: 83

Colonial planktonic cyanobacterium Aphanizomenon klebahnii ID: 82

Colonial planktonic cyanobacterium Aphanizomenon klebahnii ID: 81

Detail view on a colony of planktonic cyanobacterium Aphanizomenon klebahnii ID: 80

Coiled filaments of planktonic cyanobacterium Anabaenopsis ID: 79

One of the best known green flagellates, Volvox aureus ID: 54

Planktonic rotifers Conochilus with digested algae inside their bodies ID: 53

Oil drops escaping from ruptured cells of a colonial green alga Botryococcus braunii ID: 52

Planktonic desmids of the genus Staurastrum ID: 51

Oval cells of the green alga Oocystis marssonnii with mucilaginous sheats ID: 50

Filamentous green alga Spirogyra with a spiral coiled plastid inside the cell ID: 49

Flagellated colonies of a tropical scum-forming green alga Pleodorina indica ID: 48

A star-like shaped colony of the green alga Pediastrum simplex ID: 47

Common planktonic diatom Fragilaria crotonensis dominate the phytoplankton of meso-eutrophic freshwater lakes and reservoirs in temperate zone ID: 46

Zygospores of filamentous alga Spirogyra ID: 45

Mozaic of colonial green algae and cyanobacteria ID: 44

Colonies of the green alga Oocystis lacustris with typical mucilaginous sheats ID: 43

Parallel arrangement of cyanobacterial filaments of Dolichospermum planktonicum ID: 42

Cells of a colonial green alga Dictyosphaerium are attached to the ends of branching thin stalks ID: 41

A common representative of filter-feeding cladoceran - Daphnia galeata ID: 40

Planktonic desmids (Cosmarium, Staurastrum) dominate summer phytoplankton in a meso-eutrophic reservoir ID: 39

Big cells of the dinoflagellate Ceratium hirundinella ID: 38

Big cells of the dinoflagellate Ceratium hirundinella with smaller cells of Staurastrum ID: 37

A colonial green alga Botryococcus braunnii containing orange carotenoids ID: 36

Colonies of a green alga Oocystis lacustris with distinct mucilaginous sheaths ID: 35

Coiled filaments of the cyanobacterium Dolichospermum ID: 34

Straight filaments of a cyanobacterium Dolichospermum danicum with distinct mucilage ID: 33

Filaments of planktonic cyanobacterium Anabaena aphanizomenoides with akinets (spores) formed on both sides of a heterocyst serving for nitrogen fixation ID: 32

Straight filaments of a cyanobacterium Dolichospermum danicum with distinct mucilage ID: 31

Flagellated colonies of a tropical scum-forming green alga Pleodorina indica ID: 30

A colony of the cyanobacterium Gloeotrichia echinulata. Although the species is common in Canada or Scandinavia, there are only a few reports of it from the Czech Republic ID: 29

A planktonic desmid Closterium with small colonies of green algae ID: 28

Colonial green algae of genus Asterococcus with distinct mucilaginous sheaths ID: 27

Siliceous frustules of Cymbella diatom are commonly attached to various submerged surfaces by polysacharide stalks ID: 26

Mixture of green algae of various shapes — Coelastrum, Pediastrum and Desmodesmus ID: 25

Regular cell arrangement of a common planktonic desmid Staurastrum planktonicum ID: 24

Non-typical coiled shape of otherwise flat colonies of a common planktonic diatom Fragilaria crotonensis ID: 23

Big spectacular-looking cells of a desmid Micrasterias americana (>200 µm) ID: 22

Coiled filaments of a bloom-forming cyanobacterium Dolichospermum flos-aquae ID: 21

Common colonial bloom-forming cyanobacterium Dolichospermum lemmermannii ID: 20