Diatom Gallery #2

Araphid and Monoraphid Forms


Araphid Forms

Asterionella

1. Asterionella formosa
 
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  MTU settling pond
surface plankton tow
10/16/05
11°C
 
2. Asterionella formosa
 
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    Keweenaw Waterway at MTU
oblique plankton tow
10/16/05
13.5°C
 
3. Asterionella
 
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    Traverse River at Mohawk-Gay Rd
plant detritus sample
5/20/10
18°C
 
4. Asterionella
 
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    same as above
 

Diatoma

1. Diatoma
 
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    Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
 
2. Diatoma
 
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    same as above
 
3. Diatoma
 
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    same as above
 
4. Diatoma
 
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  same as above
 
5. Diatoma
 
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    same as above
 
6. Diatoma
 

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    same as above
 

Fragilaria

1. Fragilaria crotonensis
 

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    Keweenaw Waterway at MTU
oblique plankton tow
8/12/10
pH 8.6, 26°C, 132 uS
 
2. Fragilaria crotonensis
 
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    Torch Lake at Hubbell boat launch
surface plankton tow
5/20/10
17°C
 
3. Fragilaria crotonensis
 
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    Torch Lake at Lake Linden boat launch
surface plankton tow
9/27/05
18.5°C
 
4. Fragilaria
 

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    Jacobsville old quarry pond
aquatic plant sample
8/7/10
pH 7.6, 17°C, 121 uS
 
5. Fragilaria capucina
 
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    Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
 
6. Fragilaria capucina
 
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  Dollar Bay from shore
surface plankton tow
6/19/07
19°C
 

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
 

Synedra

1. Synedra capitata
 

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  Dollar Bay from boat
aquatic plant sample
9/26/01
 
2. Synedra ulna var. contracta
 

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    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
 

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    Dollar Bay at marina
aquatic plant sample
5/20/10
20°C
 
7. Synedra
 

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    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
 

Tabellaria

1. Tabellaria fenestrata
 
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  Traverse River at Mohawk-Gay Rd
plant detritus sample
5/20/10
18°C
 
2. Tabellaria fenestrata
 

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  Dollar Bay at marina
plankton tow
8/12/10
pH 8.4, 26°C, 130 uS
 
3. Tabellaria fenestrata
 

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  Jacobsville old quarry pond
aquatic plant sample
8/7/10
pH 7.6, 17°C, 121 uS
4. Tabellaria flocculosa
 
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    Dollar Bay at boat launch
plankton tow
5/20/10
20°C
 
5. Tabellaria flocculosa
 
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    Dover Creek pool at US-41
plankton tow
7/15/10
pH 6.8, 25°C, 130 uS
 
6. Tabellaria flocculosa
 
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    Keweenaw Waterway at Lily Pond
oblique plankton tow
8/29/05
15°C
 

Monoraphid Forms

Achnanthes

1. Achnanthes
 

800x
    Pilgrim River downstream of US-41
log scraping
11/1/01
 
2. Achnanthes
 

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    Rice Lake marsh #1
plankton tow through vegetation
8/12/10
pH 7.2, 26°C, 69 uS
 
3. Achnanthes
 

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800x
  same as above
 

Cocconeis

1. Cocconeis
 
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    Pilgrim River upstream of US-41
rock scraping
5/24/10
18°C
 
2. Cocconeis
 
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    same as above
 
3. Cocconeis
 
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same as above
 
4. Cocconeis
(auxospore)
 
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    same as above
 
5. Cocconeis
(auxospore)
 
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    same as above