Rivers Ettrick and Yarrow algae, 2006
 

This survey was carried out as a supplement to a study (by J. Gillard, with the Tweed Foundation) of the Ettrick and Yarrow systems, aimed at finding a cause of lower salmon recruitment in the Yarrow.

Species

Image 

Type
Sites
Abundance
(overall - where present)
Ankistrodesmus
 
green
3
+
Asterionella formosa
 
diatom
2, 4
+
 ?Asterococcus
 
green
8
+
Audouinella
rhodophyte
3, 4, 8, 9, 11, 13, 15, 21, 24
++
Batrachospermum
 
rhodophyte
5, 18
+
Bulbochaete
green
14, 9, 15, 16, 17
+
Calothrix sp.
cyanobacterium
15
+

 Ceratium hirundinella

 

dinoflagellate
5
+

 Chaetophora

 

green
16, 17, 18, 19, 21, 22, 24,
++
 Cladophora
 
green
11, 20, 24, 26, 27
++
Closterium ehrenbergii
 
desmid
25, 26
+
 Closterium ?idiosporum
  
desmid
3, 14, 15, 19
+
Closterium lebleinii
desmid
1, 3, 4, 5, 6, 7, 15, 16, 18, 19, 20, 21
++
Closterium moniliferum
desmid
20
+
Closterium ?parvulum
 
desmid
25
+
Cocconeis
diatom
11, 20, 26, 27
++
?Coelastrum
 
green
25, 27
+
?Coelosphaerium
 
cyanobacterium
7, 25
+
Cosmarium botrytis

desmid
14, 19
+
Cosmarium ?punctatulum
 
desmid
8, 18, 19
++
Cosmarium reniforme v. compressum

desmid
5
+
Cosmarium sp.
desmid
2, 6, 21
+
?Crucigenia fenestrata
green
25
+
Cymbella cymbiforme
diatom
4, 15, 16
+
Cymbella lanceolata
diatom
4
+
 Diatoma ehrenbergii
 
diatom
6
++
 Diatoma sp.
 
diatom
6, 7, 19, 20, 24
++
Didymosphenia geminata
 
diatom
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
+++++
Encyonema prostratum
diatom
4, 5, 15
++
Euastrum verrucosum
 
desmid 
4
 +
Fragilaria capucina
diatom
2, 4, 6, 8, 20
++
 Geminella
green
5, 14, 16
+
 Gomphonema acuminatum
diatom
2, 3, 4, 14, 19
+++
 Gomphonema subtile
diatom
4
+
Gomphonema truncatum
 
diatom
4, 15, 16, 19
++
Hyalotheca dissiliens
desmid
1, 19
+
Klebsormidium 8µm.
 
green
2
++
 Lemanea
rhodophyte
3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 21, 22, 23, 24
++++
?Melosira/Aulacoseira
diatom
4, 21, 25, 27
+
Meridion circulare
 
diatom
4, 19
+
Microspora 20µm.

green

3, 5, 6, 13, 14, 21, 24,
++
Mougeotia 8µm.
 
green
1, 2, 3, 4, 15, 17, 19
++
Mougeotia 25µm.
 
green
1, 2, 4, 5, 7, 8, 15, 19, 20, 24,
++
Navicula radiosa
diatom
4
+
Nitzschia sigmoidea
 
diatom
1
+
 Oedogonium 11µm.
 
green
2, 4, 6, 7, 8, 15, 16
+
Oedogonium 17µm.
green
2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 21, 22, 23, 24, 25
++++
Oedogonium 35µm.
 
green
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 17, 20, 21, 22, 23, 24, 25
+++
Oedogonium 45µm.
green
3, 11, 21, 25, 27
+
Oscillatoria 6-8µm.
 
cyanobacterium
4, 15, 27
+
 Pediastrum
 
green
2, 25, 27
+
Pinnularia maior
diatom
4
+
Scenedesmus
 
green
25, 26, 27
+
Scenedesmus obliquus
green
25
+
Scenedesmus obtusus
 
green
25
+
Sphaerocystis
 
green
2
+
 Spirogyra 11µm.
 
  green
1, 4, 5, 8, 19, 20
 +
Spirogyra 22µm.
  green
3, 4, 5, 8
++
 Spirogyra 30µm.
 
  green
2, 3, 6, 7, 8, 9, 20, 24, 25, 26
 ++
 Spirogyra 42µm.
 
  green
3, 6, 15, 20, 23, 25, 27
++ 
 Staurastrum armigerum
  desmid
3
  +
 Staurastrum avicula
 
desmid
19
+
 Staurastrum crenulatum
 
desmid
4
++
Staurastrum ?cyrtocerum
 
desmid
4
+
 Staurastrum
(?avicula)
 
desmid
7, 25
++
Staurastrum ?pingue
desmid
4
+
Staurastrum ?punctatulum
desmid
25
+
Stigeoclonium ?amoenum
     
green
4, 5, 6, 7, 8, 14, 26
++
 Synedra acus
 
diatom
4, 5, 19, 20, 25, 26
+
 Synedra berolinensis
 
diatom
15
+
 Synedra ulna
diatom
1, 2, 3, 4, 5, 6, 7, 9, 8, 13, 14, 15, 18, 21, 24
++
Tabellaria fenestrata
 
diatom
1, 2, 19, 25
++
Tabellaria fenestrata v. asterionelloides
     
diatom
1, 4, 8
++
 Tabellaria flocculosa
diatom
2, 3, 4, 5, 9, 15, 19, 22
++
 Teilingia
 
desmid
7
+
Tolypothrix
 
cyanobacterium
2, 3
+
Ulothrix 14µm.
 
green
2, 16, 19
+
 Ulothrix 30µm.
 
green
1, 2, 4, 5, 9, 11, 16, 19, 21, 22, 25
++++
Ulothrix 60µm.
 
green
4, 5, 6, 7, 20, 24
+
Ulothrix 80µm.
 
green
3, 4, 5, 6, 7, 10, 13, 14, 15, 16, 23
++
Zygnema 22µm.
 
green
1, 8, 15
+

alphabetical index
(with descriptions)
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John Kinross