Coscinodiscales

Fig 2: Coscinodiscus wailesii Light micrograph of valve face of a live cell

Centric diatom, seen from valve view. This is an empty frustule of a large marine species. The pattern of pores in the frustule is used in identification. Marine. Phase contrast.

This species is easily identified by its hexagonal central area and its division into usually six sectors with alternating raised and depressed areas. It is a cosmopolitan species andcan be abundant in cold to temperate coastal waters

C. radiatus is one of the smaller Coscinodiscus species. It is box shaped in girdle view and the valves are very flat. The areolae form disctinct rows radiating from the valve centre. C. radiatus is a cosmopolitan species.

Actinoptychus heliopelta.

Coscinodiscus radiatus.Valvar view. Scale bar indicates 25 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For more look at www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de..

Grove, O, Galicia, Spain

Grove, O, Galicia, Spain

Coscinodiscus wailesii.Valvar view. Insets showing marginal ring of labiate processes (upper right) and the hyaline central area (lower left). Scale bar indicates 100 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For more look at www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de..

Coscinodiscus radiatus Valvar view. Scale bar indicates 25 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: North Sea around Heligoland Latitude: 54,186311 Longitude: 7,895034 Schalenansicht. Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Probe aus der Nordsee vor Helgoland in der Zeit der Frühjahrsblüte. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Coscinodiscus spec. The specimen was gathered in the Kieler Förde (German Baltic Sea). Scale bar indicates 100 µm. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with MFT camera Olympus OM-D E-M5 II.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Baltic Sea, Kieler Förde, Kiel Fjord (Germany) Latitude: 54,3894126 Longitude: 10,1749055 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 100 µm. Probe aus der Kieler Förde in der Zeit der Frühjahrsblüte. Mikrotechnik: Zeiss Axioplan Kamera: Olympus OM-D E-M5 MKII.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Coscinodiscus concinnus Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Leica dissecting microscope with MFT camera Olympus OM-D E-M5 II.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: North Sea around Heligoland Latitude: 54,186311 Longitude: 7,895034 Probe aus der Nordsee vor Helgoland in der Zeit der Frühjahrsblüte. Mikrotechnik: Leica Stereomikroskop, Kamera: Olympus OM-D E-M5 II.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Fig 4: Coscinodiscus wailesii Light micrograph central hyaline area of a live cell

Coscinodiscus (coss-co-no-disc-us) a centric diatom, seen from valve view. This is an empty frustule of a large marine species. The pattern of pores in the frustule is used in identification. Marine. Phase contrast.

Grove, O, Galicia, Spain

Grove, O, Galicia, Spain

Coscinodiscus wailesii.Closeup of the lateral side of the valve. Scale bar indicates 25 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schffner, Solingen, Germany. For more look at www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de.

Coscinodiscus radiatus Scale bar indicates 10 µm. The specimen was gathered in the Kieler Förde (Baltic Sea). Sampling date 1/2022. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Baltic Sea, Kieler Förde, Kiel Fjord (Germany) Latitude: 54,3894126 Longitude: 10,1749055 Scale bar indicates 10 µm. The specimen was gathered in the Kieler Förde (Baltic Sea). Sampling date 1/2022. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Coscinodiscus spec. This biocoenosis was gathered in the Kieler Förde (German Baltic Sea). It consists of the red alga Polysiphonia spec., where numerous cells of Coscinodiscus spec. are attached by bulky sheets of mucilage.The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with MFT camera Olympus OM-D E-M5 II.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Baltic Sea, Kieler Förde, Kiel Fjord (Germany) Latitude: 54,3894126 Longitude: 10,1749055 Multiebenen-Abbildung, manuell gestapelt. Probe aus der Kieler Förde in der Zeit der Frühjahrsblüte. Mikrotechnik: Zeiss STEMI SV6 Kamera: Olympus OM-D E-M5 MKII.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.