This class consists of araphid diatoms. Specimens are organized into orders following Wehr et al. (2015).
Fragilariales
Fragilaria
1. Fragilaria crotonensis
500x
Keweenaw Waterway at MTU
oblique plankton tow
8/12/10
pH 8.6, 26°C, 132 uS
2. Fragilaria crotonensis
800x
Torch Lake at Hubbell boat launch
surface plankton tow
5/20/10
17°C
3. Fragilaria crotonensis
800x
Torch Lake at Lake Linden boat launch
surface plankton tow
9/27/05
18.5°C
4. Fragilaria
800x
Jacobsville old quarry pond
aquatic plant sample
8/7/10
pH 7.6, 17°C, 121 uS
5. Fragilaria capucina
800x
Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
6. Fragilaria capucina
250x
800x
Dollar Bay from shore
surface plankton tow
6/19/07
19°C
Synedra
1. Synedra capitata
320x
1000x
Dollar Bay from boat
aquatic plant sample
9/26/01
2. Synedra ulna var. contracta
800x
creek south of Calumet
filamentous algae sample
10/3/01
3. Synedra ulna var. contracta
800x
Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
4. Synedra
800x
same as above
5. Synedra
800x
old Laurium dump creek
filamentous algae sample
7/1/10
pH 7.4, 13°C, 802 uS
6. Synedra
640x
Dollar Bay at marina
aquatic plant sample
5/20/10
20°C
7. Synedra
800x
Jacobsville old quarry pond
aquatic plant sample
8/7/10
pH 7.6, 17°C, 121 uS
8. Synedra
400x
Keweenaw Waterway at MTU
surface plankton tow
11/22/05
6.0°C
Tabellariales
Asterionella
1. Asterionella formosa
400x
800x
MTU settling pond
surface plankton tow
10/16/05
11°C
2. Asterionella formosa
500x
Keweenaw Waterway at MTU
oblique plankton tow
10/16/05
13.5°C
3. Asterionella
800x
Traverse River at Mohawk-Gay Rd
plant detritus sample
5/20/10
18°C
4. Asterionella
800x
same as above
Diatoma
1. Diatoma
800x
Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
2. Diatoma
800x
same as above
3. Diatoma
800x
same as above
4. Diatoma
500x
800x
same as above
5. Diatoma
800x
same as above
6. Diatoma
800x
same as above
Meridion
1. Meridion circulare
800x
Pilgrim River upstream of US-41
rock scraping
5/10/03
6.5°C
2. Meridion circulare
800x
same as above
3. Meridion circulare
800x
same as above
4. Meridion circulare
800x
Tech Trails creek
plant detritus sample
5/14/03
9.5°C
5. Meridion circulare
400x
same as above
Tabellaria
1. Tabellaria fenestrata
640x
800x
Traverse River at Mohawk-Gay Rd
plant detritus sample
5/20/10
18°C
2. Tabellaria fenestrata
250x
500x
Dollar Bay at marina
plankton tow
8/12/10
pH 8.4, 26°C, 130 uS
3. Tabellaria fenestrata
250x
500x
Jacobsville old quarry pond
aquatic plant sample
8/7/10
pH 7.6, 17°C, 121 uS
4. Tabellaria flocculosa
800x
Dollar Bay at boat launch
plankton tow
5/20/10
20°C
5. Tabellaria flocculosa
800x
Dover Creek pool at US-41
plankton tow
7/15/10
pH 6.8, 25°C, 130 uS
6. Tabellaria flocculosa
640x
Keweenaw Waterway at Lily Pond
oblique plankton tow
8/29/05
15°C