Algae from Bemersyde, 2006
 

Bemersyde Moss is a shallow loch and surrounding wetland near Melrose in the Scottish Borders, and an important local bird reserve. Napier biologists have been engaged in a long-term study of nutrient levels and their relationship with the bird community and other aquatic life.

The study in 2005-06 had to contend with ice cover early in the year, then very low water levels which got lower as summer progressed. There was a bloom of Hydrodictyon over most of the shallower areas in the middle of summer.

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Species (Type)
Diatoms
Chlorophyta
Chlorophyta (Desmids)
Xanthophyta
Flagellates
Cyanophyta

 

 

'link' leads to an image of this species from a different location
               

 

 

             
               
 
 
             
?Amphora libyca
+
     
+
   
Asterionella formosa
+
           
?Chaetoceros muelleri
             
   
?Craticula ambigua
 
+
         
     
 Craticula cuspidata
+
+
         
         

Cymatopleura elliptica

+
+
       
 
 
   
Cymatopleura solea
+
+
   
+
 
 

Cymbella aspera

+
           
       

Gyrosigma acuminatum  

+
+
   
+
   
Gyrosigma
 
+
       
 
      
Navicula capitata
+
+
   
+
 
 
  ?
Navicula ?cryptotenella
+
   
p
+
   
Navicula ?rhynchocephala
?+
+
         
Navicula rhynchocephala v. amphiceros
+
           
Navicula subrhynchocephala
 
+
         
 
               
 
Neidium ?affine
 
+
         
Neidium productum
 
+
         

Nitzschia ?homburgiensis
+
+
         
 
               
Nitzschia radicula
       
+
   
 
Nitzschia sigmoidea
 
+
   
+
   
 
Nitzschia ?vermicularis
             
     
?Sellaphora laevissima
       
+
   
?Stauroneis anceps
             
?Staurosirella
 
+
         
Stephanodiscus minutulus
 
++
         
 
               
       
Surirella ?capronii
+
+
       
 
 
Surirella robusta
 
+
         
                 
                 
   
 
           
 
CHLOROPHYA (Green Algae)
             
                 
?Apatococcus
(like Desmococcus, this is usually considered subaerial, found on stones, walls, etc.)
     
+
     
                 
 

 Ankistrodesmus (?fusiformis)

     
p
     
Closteriopsis acicularis  
compare with Monoraphidium - Closteriopsis shows the presence of pyrenoids while Monoraphidium does not
 
+
         
?Coelastrum
(?sphaericum or microporum)
     
+
     
     
?Desmococcus
(like Apatococcus, this is usually considered subaerial, found on stones, walls, etc.)
     
+
     

  Link

Dictyosphaerium 

+
+
       
 
?Eremosphaeria
     
+
+
   
 
Hydrodictyon
     
+
+
   
?Kirchneriella obesa
     
p
     
                 
 
Microspora 20µm.
     
p
     
                 
 

 ?Monoraphidium arcuatum  
compare with Closteriopsis - shows the presence of pyrenoids while Monoraphidium does not

 
+
         
?Monoraphidium contortum  
+
 +
         
 
?Monoraphidium komarkovae  
 
+
         
Mougeotia 28µm.
     
p
     
                 
  (Lugol's)
Nephrocytium limneticum
 
+
         

Pediastrum angulosum (or ? tetras)  

+
         
 

Pediastrum boryanum    

+
         
 
Scenedesmus ?aculeolatus
     
p
     
 
Scenedesmus communis  
 
+
         
                 
Spirogyra 11µm.
     
p
+
   
Spirogyra 25µm.
             
 
?Stigeoclonium sp.
(numerous young short filaments attached at the base)
     
p
     
                 
                 
               
                 
                 
 
Tribonema
     
p
+
   
                 
                 
               
  

Closterium attenuatum

 
+
         
Closterium juncidum
     
+
     
Closterium juncidum ?v. elongatum
+
           
 
Closterium moniliferum
     
+
     
 
Closterium parvulum
+
           
 
Closterium ?sp.
     
+
     
Cosmarium ?blyttii
(larger than type)
     
p
     
       
(4th image shows striations in the middle of the semicell)
Cosmarium ?crenatulum
+
+
   
   
   
Cosmarium ?crenatulum
     
+
+
   
Cosmarium ?meneghinii
     
+
     
Cosmarium ?subcostatum
     
+
     
               
 
  Cryptomonas marssonii
 
+
         
 
?Diplostauron sp.  
       
+
   
 (Lugol's)   
Eudorina 
 
+
         
 (Lugol's)
Euglena acus 
 
+
         
 
 Euglena oxyuris
       
+
   
 (Lugol's)
 Euglena tripteris
 
+
   
+
   
    (Lugol's)

Euglena viridis

+
+
         
 
Mallomonas akrokomos  
 
+
       
 
 
?Massartia
 
+
         
       

 Phacus

+
           
  (Lugol's) 
 Phacus caudatus
 
+
         
 
Phacus nordstedtii
 
+
         
 
Phacus ?pleuronectes
     
p
     
  
Trachelomonas
+
         
 


 
 
           
 
             
 
                 
 
?Anabaena
(filament motile ! )
     
p
     
Eucapsis
       
+
   
Gomphosphaeria
       
+
   
Merismopedia
+
   
+
     

 

 

             
Oscillatoria 4Ám.
+
+
         
Oscillatoria 4Ám.
 
+
         
 
Oscillatoria 8Ám.
+
         
 
Oscillatoria 14Ám.
+
+
         
 
 Phormidium14Ám.
       
+
   
 
Pseudanabaena
+
+
   
+
   
 
 
           
 

 

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John Kinross