Diatom alga, SEM

Diatom, SEM

Diatom alga, SEM

Diatom, SEM

Diatom, SEM

Diatom, SEM

Rhabdonema marine diatom, SEM

Diatom, SEM

Diatoms. Coloured scanning electron micrograph (SEM) of fresh water centric diatom frustules (skeleton), Diatoms are a type of algae (Chromophyta, Bacillariophyceae). They consist of two valves, made of silica (hydrated silicon dioxide), which fit...

Diatom, SEM

Diatoms. Coloured scanning electron micrograph (SEM) of fresh water centric diatom frustules (skeleton), Diatoms are a type of algae (Chromophyta, Bacillariophyceae). They consist of two valves, made of silica (hydrated silicon dioxide), which fit...

Diatoms and radiolaria, SEM

Diatom, coloured scanning electron micrograph (SEM). The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x3250 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x800 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Eupodiscus sculptus diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x800 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Rutilaria epsilon diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x1000 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Bacteriastrum sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x950 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of part of the cell wall, or frustule, of a Amphora sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x5000 when printed at 10 ce

Scanning electron micrograph showing a diatom found in an untreated water specimen extracted from a wild stream. Magnification 6500x

Coloured scanning electron micrograph (SEM) of marine pennate diatom frustule (Cymbella sp. ). The genus Cymbella is an asymmetrical biraphid, pennate diatom. This genus occurs in both fresh water and salt water and is a periphytic diatom. The body or...

Coloured scanning electron micrograph (SEM) of centric fossil diatom frustule. This fresh water diatom frustule came from deposits found at Kalamath Falls, Oregon. This freshwater centric diatom is found in fresh water streams, ponds and lakes....

Coloured scanning electron micrograph (SEM) of salt water pennate diatom frustule (Navicula sp. ). The genus Navicula is a genus of boat-shaped, single cell, photosynthetic alga. It is a pennate diatom that has a silica skeleton (frustule). These...

Coloured scanning electron micrograph (SEM) of marine pennate diatom frustule (Cymbella sp. ). The genus Cymbella is an asymmetrical biraphid, pennate diatom. This genus occurs in both fresh water and salt water and is a periphytic diatom. The body or...

Coloured scanning electron micrograph (SEM) of marine pennate diatom frustule (Cymbella sp. ). The genus Cymbella is an asymmetrical biraphid, pennate diatom. This genus occurs in both fresh water and salt water and is a periphytic diatom. The body or...

Diatom, SEM