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New records of Navicula sensu stricto from Serbia with taxonomic notes and autecological characterization of Navicula splendicula and N. moskalii

Danijela Vidakovic
Danijela Vidakovic
, 
Olga Jakovljević
Olga Jakovljević
, 
Vladimir Lazović
Vladimir Lazović
, 
Sanja Šovran
Sanja Šovran
 y 
Jelena Krizmanić
Jelena Krizmanić
   | 06 mar 2020
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Article Category: Research Article
Publicado en línea: 06 mar 2020
Páginas: 56 - 67
Recibido: 18 mar 2019
Aceptado: 24 jun 2019
DOI: https://doi.org/10.1515/ohs-2020-0006
© 2020 Faculty of Oceanography and Geography, University of Gdańsk, Poland
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Map of Serbia with an indication of the surveyed rivers. RČ – Rača; ST– Studenica; RŠ – Raška; RA – Rasina; ML – Mlava; RD – Radovanska Reka; VR – Vrla
Map of Serbia with an indication of the surveyed rivers. RČ – Rača; ST– Studenica; RŠ – Raška; RA – Rasina; ML – Mlava; RD – Radovanska Reka; VR – Vrla

Figure 2

Light microscopy (LM) micrographs. 1–10 N. moskalii; 11 N. cariocincta; 12, 13 N. oppugnata; 14–17 N. praeterita; 18 N. aquaedurae; 19 N. wiesneri; 20 N. germainii; 21 N. stankovicii; 22, 23 N. cataracta-rheni; 24 N. vandamii; 25 N. libonensis; 26, 27 N. associata; 28 N. subalpina; 29–35 N. cryptotenelloides. Scale bar = 10 μm
Light microscopy (LM) micrographs. 1–10 N. moskalii; 11 N. cariocincta; 12, 13 N. oppugnata; 14–17 N. praeterita; 18 N. aquaedurae; 19 N. wiesneri; 20 N. germainii; 21 N. stankovicii; 22, 23 N. cataracta-rheni; 24 N. vandamii; 25 N. libonensis; 26, 27 N. associata; 28 N. subalpina; 29–35 N. cryptotenelloides. Scale bar = 10 μm

Figure 3

Light microscopy (LM) micrographs. 1–17 N. splendicula. Scale bar = 10 μm
Light microscopy (LM) micrographs. 1–17 N. splendicula. Scale bar = 10 μm

Figure 4

Scanning electron microscopy (SEM) micrographs of N. splendicula (1–6). 1–6 External valve view of the frustule; 6 Terminal raphe fissures; 2, 4 Center of raphe ends with the silicate tongue. Scale bar = 5 μm for 1, 3; 2 μm for 2, 4, 6; 10 μm for 5
Scanning electron microscopy (SEM) micrographs of N. splendicula (1–6). 1–6 External valve view of the frustule; 6 Terminal raphe fissures; 2, 4 Center of raphe ends with the silicate tongue. Scale bar = 5 μm for 1, 3; 2 μm for 2, 4, 6; 10 μm for 5

Figure 5

Scanning electron microscopy (SEM) micrographs of N. moskalii (1–5). Scale bar = 5 μm for 1, 3, 5; 2 μm for 2; 1 μm for 4
Scanning electron microscopy (SEM) micrographs of N. moskalii (1–5). Scale bar = 5 μm for 1, 3, 5; 2 μm for 2; 1 μm for 4

Checklist of the recorded Navicula taxa in Serbia (from the unpublished database of Serbian diatom flora compiled by Dr Jelena Krizmanić, University of Belgrade, Faculty of Biology)

No. Taxon
1. Navicula amphiceropsis Lange-Bertalot & U.Rumrich
2. Navicula angusta Grunow
3. Navicula antonii Lange-Bertalot
4. Navicula aquaedurae Lange-Bertalot
5. Navicula bourrellyivera Lange-Bertalot, Witkowski & Stachura
6. Navicula broetzii Lange-Bertalot & E.Reichardt
7. Navicula capitatoradiata H.Germain ex Gasse
8 Navicula cari Ehrenberg
9. Navicula catalanogermanica Lange-Bertalot & G.Hofmann
10. Navicula cincta (Ehrenberg) Ralfs
11. Navicula cryptocephala Kützing
12. Navicula cryptofallax Lange-Bertalot & G.Hofmann
13. Navicula cryptotenella Lange-Bertalot
14. Navicula dealpina Lange-Bertalot
15. Navicula digitoradiata (W.Gregory) Ralfs
16. Navicula erifuga Lange-Bertalot
17. Navicula exilis Kützing
18. Navicula exilissima Grunow
19. Navicula gregaria Donkin
20. Navicula jakovljevicii Hustedt
21. Navicula lanceolate Ehrenberg
22. Navicula lundii E.Reichardt
23. Navicula hasta Pantocsek
24. Navicula hintzii Lange-Bertalot
25. Navicula margalithii Lange-Bertalot
26. Navicula menisculus Schumann
27. Navicula microdigitoradiata Lange-Bertalot
28. Navicula novaesiberica Lange-Bertalot
29. Navicula oblonga (Kützing) Kützing
30. Navicula oligotraphenta Lange-Bertalot & G.Hofmann
31. Navicula peregrine (Ehrenberg) Kützing
32. Navicula perminuta Grunow
33. Navicula phyllepta Kützing
34. Navicula pseudolanceolata Lange-Bertalot
35. Navicula pseudosilicula Hustedt
36. Navicula pseudotenelloides Krasske
37. Navicula radiosa Kützing
38. Navicula recens (Lange-Bertalot) Lange-Bertalot
39. Navicula reinhardtii (Grunow) Grunow
40. Navicula reichardtiana Lange-Bertalot
41. Navicula rhynchotella Lange-Bertalot
42. Navicula rostellata Kützing
43. Navicula salinarum Grunow
44. Navicula salinarum var. rostrate (Hustedt) Lange-Bertalot
45. Navicula semen Ehrenberg
46. Navicula slesvicensis Grunow
47. Navicula subrhynchocephala Hustedt
48. Navicula symmetrica R.M.Patrick
49. Navicula staffordiae L.L.Bahls
50. Navicula streckerae Lange-Bertalot & Witkowski
51. Navicula rhynchocephala Kützing
52. Navicula tenelloides Hustedt
53. Navicula tripunctata (O.F.Müller) Bory
54. Navicula trivialis Lange-Bertalot
55. Navicula trophicatrix Lange-Bertalot
56. Navicula veneta Kützing
57. Navicula viridula (Kützing) Ehrenberg
58. Navicula viridulacalcis Lange-Bertalot
59. Navicula vulpine Kützing
60. Navicula upsaliensis (Grunow) M.Peragallo
61. Navicula wildii Lange-Bertalot

Mean values of physical and chemical parameters of water from seven rivers in Serbia

Parameters Unit Rivers
Rasina Rača Studenica Raška Mlava Vrla Radovanska
T °C 2.5–18.7 5.7–17.3 1.4–19.1 9.9–13.5 6.4–16.8 2–15 6.4–15.4
pH 7.32–8.41 7.9–8.68 7.6–8.72 7.02–8.23 7.14–8.12 7.5–8.43 7.18–8.34
DO mg l−1 9.2–14.4 9.5–12.5 9.2–16.4 7–12.6 7.5–12.2 8.8–15.1 7.5–12.8
BOD 1.3–8.8 2.2–7.5 2.45–9 2.05–8.3 1.4–7.8 <0.2–6.7 1.25–7.2
N-NH4+ 0.02–0.33 0.04–0.41 0.02–0.30 0.01–0.52 0.04–0.56 0.005–0.26 0.02–1.1
N-NO3− 1.41–6.7 1.39–7.3 0.93–2.21 6.3–7.9 3.62–7.6 0.60–3.4 4.23–9
Con. μS cm−1 120–345 247–384 146–257 305–423 340–506 58–115.6 278–540
TP μg P l−1 11–61.6 6.7–86.5 11.5–73 13.5–97.6 8.7–115.1 22.1–91 16–66.5

List of Navicula species new to the diatom flora of Serbia

Taxon River Figure
N. aquaedurae Lange-Bertalot ML Fig. 2. 18
N. associata Lange-Bertalot ML, RD Fig. 2. 26, 27
N. cariocincta Lange-Bertalot ML Fig. 3. 11
N. cataracta-rheni Lange-Bertalot VR Fig. 2. 22, 23
N. cryptotenelloides Lange-Bertalot RA, RČ, ST, ML, RD, VR Fig. 2. 29–35
N. germainii J.H.Wallace VR Fig. 2. 20
N. libonensis Schoeman RA, RŠ Fig. 2. 25
N. moskalii Metzeltin, Witkowski & Lange-Bertalot RA, RŠ, RČ, ST, ML, RD, Fig. 2. 1–10, Fig. 5. 1–5
N. oppugnata Hustedt RA, RŠ, ML, RD Fig. 2. 12, 13
N. praeterita Hustedt ST, ML Fig. 2. 14–17
N. splendicula VanLandingham RA, RČ, ST, VR Fig. 3. 1–17, Fig. 4. 1–6
N. stankovicii Hustedt RA Fig. 2. 21
N. subalpina Reichardt RŠ, ML Fig. 2. 28
N. vandamii Schoeman & Archibald ML Fig. 2. 24
N. wiesneri Lange-Bertalot RA, RŠ, VR Fig. 2. 19
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