Planktonic Collection

Plankton, artwork C016 / 3447
Plankton. Artwork of plankton as viewed under a magnifying glass

Pond life, macrophotograph. At centre is a water flea (Daphnia sp.). A copepod (Cyclops sp.) carrying eggs is at bottom centre. Part of a colony of Volvox sp. algae is at bottom right

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Stephanopyxis sp. diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium morlandii diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of the surface of the mineralised cell wall (frustule) of an unidentified diatom. This is a planktonic unicellular alga

Diatom frustule, SEM
Diatom frustule. Coloured scanning electron micrograph (SEM) of the frustule of a Pinnularia sp. diatom

Foraminifera, light micrograph C016 / 8597
Foraminifera. Interphase contrast light micrograph of a selection of different foraminifera

Globorotalia scitula, foraminifera fossil
Scanning electron microscope (SEM) image showing a fossilised planktonic species of foraminifera

Dinoflagellate plankton, SEM
Dinoflagellate plankton. Coloured scanning electron micrograph (SEM) of the calcareous (calcium-based) test (shell) of a dinoflagellate Calciodinellum sp

Dinoflagellates, SEM
Dinoflagellates. Coloured scanning electron micrograph (SEM) of Prorocentrum dinoflagellates (round) and Ceratium dinoflagellates (branched). Dinoflagellates are unicellular protozoans

Diatom cell wall, SEM
Diatom cell wall. Coloured scanning electron micrograph (SEM) of the pattern of small holes, called striae, in the cell wall of a diatom alga. This is a Coscinodiscus sp. diatom

Foraminifer model
Model of typical nummulitic foraminfer after Zittel

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Biddulphia sp. diatom. This is a marine planktonic unicellular alga. It has a mineralised cell wall (frustule) divided into two halves

Planktonic crustaceans: Limnadia hermani and Branchinecta
Planktonic crustaceans: Limnadia hermani 1 and fairy shrimp, Branchinecta paludosa 2. Limnadia d Hermann, Brachipo dei paduli. Lofiropi. Branchiopodi

Brachionus angularis rotifer
Brachionus angularis species of planktonic rotifer (Aculeated brachionus, Brachionus aculeatus). Illustration drawn and engraved by Richard Polydore Nodder

Marine planktonic Copepod (Sapphirina sp. ) brightly coloured copepods
Marine planktonic Copepod (Sapphirina sp.) brightly coloured copepods. Deep sea species from Atlantic Ocean off Cape Verde. Captive

Marine planktonic Copepod (Sapphirina sp.) brightly coloured copepods. Deep sea species from Atlantic Ocean off Cape Verde. Captive

Flatfish (Bothidae sp) larva, Atlantic Ocean off Cape Verde. Captive

Common fangtooth (Anoplogaster cornuta) deep sea species from Atlantic Ocean close to Cape Verde. Captive

Deep sea fish (Moridae sp. ) from Atlantic Ocean off Cape Verde. Captive
Deep sea fish (Moridae sp.) from Atlantic Ocean off Cape Verde. Captive

Juvenile deep water pelagic octopus (Vitreledonella richardi) semi-translucent species, from Atlantic Ocean off Cape Verde. Captive

Larva of an Atlantic longarm octopus (Octopus defilippi) Atlantic Ocean off Cape Verde. Captive

Emiliania huxleyi coccolithophores collected from a bloom in the SW Approaches to the English Channel in June 2004. Date: 2004

Coastal wildlife, artwork C016 / 7191
Coastal wildlife. Computer artwork showing the varying forms of wildlife found at different depths on a gently sloping Mediterranean coast, with an inset showing sand-dwelling life (lower right)

Radiolaria models
Models of two radiolaria made in papier mache by Vaclav Fric

Coccolith
Scanning electron microscope (SEM) image of a Folkestone chalk surface with Cretaceous coccoliths (x2500 on a standard 9 cm wide print)

Copepods. Copepods are microscopic aquatic crustaceans found in waters around the world. They may either be free living or parasitic on other organisms

Water flea giving birth
Water flea. Macrophotograph of a water flea (Daphnia sp.) giving birth. Daphnia reproduce through parthenogenesis (female asexual reproduction)

Syracosphaera anthos
Coccosphere from the Western Mediterranean. False coloured to show the shell is formed of inner and outer layers of coccoliths with very different structure

Foraminiferan fossil, SEM
Foraminiferan fossil. Coloured scanning electron micrograph (SEM) of the fossilised shell (test) of a foraminiferan

Foraminiferan tests (shells), macrophotograph. Species seen here include Bulimina gibba, Elphidium crispum, E. articulatum, Lagena sulcata, and Miliolinella circularis

Foraminiferan fossil, SEM Z110 / 0239
Foraminiferan fossil. Coloured scanning electron micrograph (SEM) of the fossilised shell (test) of a foraminiferan

Diatom, light micrograph C014 / 4673
Diatom. Differential interference contrast micrograph of a Gyrosigma sp. diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Scenedesmus algae, SEM C014 / 1461
Scenedesmus algae. Coloured scanning electron micrograph (SEM) of Scenedesmus sp. algae. Scenedesmus is a nonmotile colonial green algae that has its cells arranged in a row

Tabellaria diatoms, SEM C016 / 9599
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Fossil diatom, light micrograph C016 / 8603
Fossil diatom. Darkfield illuminated light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Tabellaria diatoms, SEM C016 / 9600
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Tabellaria diatoms, SEM C016 / 9601
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Rotifer, light micrograph C016 / 9550
Rotifer. Light micrograph of a freshwater rotifer (Brachionus calyciflorus). Rotifers are microscopic aquatic animals that are related to roundworms

Rotifer with eggs, light micrograph C016 / 8587
Rotifer with eggs. Differential interference contrast (DIC) light micrograph of a rotifer (phylum Rotifera) carrying eggs (small, round)

Haematococcus alga, light micrograph
Haematococcus alga. Differential interference contrast (DIC) micrograph of a Haematococcus sp. green alga. Magnification: x670, when printed 10 centimetres wide

Microcoleus cyanobacteria, SEM
Microcoleus cyanobacteria. Coloured scanning electron micrograph (SEM) of Microcoleus sp. filamentous cyanobacteria (blue-green algae). Magnification: x 1300, when printed 10 centimetres wide

Microalgae, light micrograph
Microalgae. Differential interference contrast (DIC) micrograph of Botryococcus braunii (round), and other species of green alga. Magnification: x278, when printed 10 centimetres wide

Haematococcus algae, light micrograph
Haematococcus algae. Differential interference contrast (DIC) micrograph of a colony of Haematococcus sp. green alga. Magnification: x220, when printed 10 centimetres wide

Rotifer, light micrograph
Rotifer. Darkfield illuminated light micrograph of a rotifer (phylum Rotifera). Rotifers (phylum Rotifera) are microscopic aquatic animals that are related to roundworms

Fossil foraminifera necklace C016 / 5995
Fossil foraminifera (Alveolina sp.) necklace from Sindh, India. The fossils are from Eocene limestone. Necklace from John Whittakers cabinet. Natural History Museum, London, UK

Foraminiferan shell, SEM C018 / 0312
Foraminiferan shell, SEM

Scenedesmus algae, SEM C014 / 1462
Scenedesmus algae. Coloured scanning electron micrograph (SEM) of Scenedesmus sp. algae. Scenedesmus is a nonmotile colonial green algae that has its cells arranged in a row

Diatoms, light micrograph C014 / 4675
Diatoms. Differential interference contrast micrograph of a group of Meridion circulare diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatom, light micrograph C014 / 4677
Diatom. Differential interference contrast micrograph of a Campylodiscus sp. diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Green algae, light micrograph C014 / 4670
Green algae. Differential interference contrast micrograph of a single green alga, showing the chloroplast (green) inside. Algae use the chloroplasts to produce food through photosynthesis

Diatoms, light micrograph C014 / 4671
Diatoms. Differential interference contrast micrograph of a group of Achnantes longipes diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Anabaena algae, SEM
Anabaena algae. Coloured scanning electron micrograph (SEM) of Anabaena sp. freshwater alga from a pond. Anabaena is a filamentous species of blue-green algae (cyanobacteria)

Radiolarian, SEM C014 / 4862
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Diatom, light micrograph C014 / 4669
Diatom. Differential interference contrast micrograph of an Achnantes longipes diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Radiolarian, SEM C014 / 4863
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Diatoms, light micrograph C014 / 4668
Diatoms. Differential interference contrast micrograph of a group of Achnantes longipes diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatoms, light micrograph C014 / 4674
Diatoms. Differential interference contrast micrograph of a group of Achnantes longipes diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Rotifer, light micrograph C014 / 4666
Rotifer, differential interference contrast micrograph. These animals are related to roundworms. They are usually freshwater organisms though a few marine sp

Bdelloid rotifer, SEM
Bdelloid rotifer. Coloured scanning electron micrograph (SEM) of a rotifer (class Bdelloidea) from a pond. Rotifers (phylum Rotifera) are microscopic aquatic animals that are related to roundworms

Foraminiferan, darkfield light micrograph. Foraminifera are marine single-celled protozoa that construct and inhabit shells composed of several chambers

Diatom, light micrograph C016 / 8606
Diatom. Phase-contrast light micrograph of a diatom from the Mediterranean. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatoms, light micrograph C016 / 8605
Diatoms, Shearing contrast light micrograph. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatoms, light micrograph C016 / 8598
Diatoms. Interphase contrast light micrograph of a selection of differently shaped diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatoms, light micrograph C016 / 8602
Diatoms. Phase-contrast light micrograph of diatoms from the Mediterranean. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Diatoms, light micrograph C016 / 8600
Diatoms. Differential interference contrast (DIC) light micrograph of diatoms from the Mediterranean. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Green algae, light micrograph C016 / 8595
Green algae, Interphase contrast light micrograph. Magnification: x280, when printed 10 centimetres wide

Fossil diatom, light micrograph C016 / 8586
Fossil diatom. Interphase contrast light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Rotifer with eggs, light micrograph C016 / 8588
Rotifer with eggs. Differential interference contrast (DIC) light micrograph of a rotifer (phylum Rotifera) carrying eggs (small, round)

Diatoms, light micrograph C016 / 8585
Diatoms. Interphase contrast light micrograph of two differently shaped diatoms. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Fossil diatom, light micrograph C016 / 8583
Fossil diatom. Interphase contrast light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Copepod larva, polarised light micrograph C016 / 8577
Copepod larva. Polarised light micrograph of a nauplius larva. A nauplius is the first larval stage of a crustacean in which the thorax and abdomen have not developed yet

Microalgae research. Biologist holding a Petri dish containing cultured diatom microalgae

Fossil-bearing rock, polarised LM C017 / 8483
Fossil-bearing rock, polarised light micrograph. This thin slice from a limestone rock shows various Nummulite fossils

Fossilised foraminiferan, SEM C015 / 5772
Fossilised foraminiferan. Scanning electron micrograph (SEM) of a section through the fossilised shell of a foraminiferan in a sample of limestone

Golden algae, light micrograph
Golden algae. Polarised light micrograph of a colony of Dinobryon sp. golden algae (chrysophytes). Magnification: x200 when printed 10 centimetres wide

Didymograptus, graptolite fossil C016 / 4848
Didymograptus, graptolite fossil. Graptolites are an extinct group of marine, colonial animals. Known for their tuning-fork shape, they formed part of ancient plankton

Saharan dust plume, Bay of Biscay C016 / 3874
Saharan dust plume, Bay of Biscay. Satellite image of a dust plume (brown) from the Sahara, stretching across the Bay of Biscay and the Atlantic from Spain (lower right) to Ireland and the UK (top)

Plankton and fish, artwork C016 / 3448
Plankton and fish. Artwork of plankton as viewed under a magnifying glass, with seabream (Diplodus vulgaris) fish

Dinoflagellate protozoan, SEM C013 / 5111
Dinoflagellate protozoan, scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. About 90 percent are found in marine environments as plankton

Diploneis diatom, SEM C013 / 5110
Diploneis diatom, coloured scanning electron micrograph (SEM). Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Coccolithophorid plankton, SEM C013 / 5109
Coccolithophorid plankton. Coloured scanning electron micrograph (SEM) of the external mineralised structure (coccosphere) of a small marine algal organism called a coccolithophore

Model of coccolith Kamptnerius magnificus
Copy of the resin model of the coccolith Kamptnerius magnificus Deflandre, 1930 currently on display in the Earth Lab area of the Earth Galleries at the Natural History Museum, London

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"Exploring the Intricate World Life: Unveiling the Hidden Beauty through SEM Imaging" Diatoms, one of the most fascinating organisms in pond life, reveal their intricate structures under scanning electron microscopy (SEM). The diatom cell wall, composed of silica, showcases a mesmerizing array of patterns and shapes. These microscopic algae play a crucial role in aquatic ecosystems as primary producers. Delving deeper into this captivating realm, we encounter dinoflagellates - another group organisms that exhibit stunning diversity when observed under SEM. Their unique features and complex structures are unveiled through high-resolution imaging techniques. The diatom frustule is an exquisite example of nature's artistry. Its delicate symmetry and intricate designs serve both functional and aesthetic purposes. SEM allows us to appreciate the beauty hidden within these tiny shells. Moving beyond diatoms, we come across foraminifer models - marine protists with elaborate calcium carbonate shells. Examining them using SEM provides insights into their evolutionary adaptations and ecological significance. With each image captured by SEM, we gain a deeper understanding of the complexity and diversity present within planktonic communities. From diatoms to dinoflagellates to foraminifers – these microorganisms shape our planet's ecosystems in ways often unnoticed by human eyes. Through scientific exploration aided by advanced imaging technologies like SEM, we unlock secrets held within these minuscule creatures' world, and is an awe-inspiring journey that reveals not only their structural intricacies but also highlights their vital contributions to Earth's biodiversity and overall environmental health. So next time you gaze upon a tranquil pond or delve into studies on planktonic life, remember the unseen wonders that lie beneath its surface – waiting to be discovered through tools like SEM that bring forth the astonishing beauty found within every diatom shell or algal cell wall.