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

Vidakovic, Danijela; Jakovljević, Olga; Lazović, Vladimir; Šovran, Sanja; Krizmanić, Jelena

doi:10.1515/ohs-2020-0006

Figures & Tables

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

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. 1–17 N. splendicula. Scale bar = 10 μm

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Checklist of the recorded Navicula taxa in Serbia (from the unpublished database of Serbian diatom flora compiled by Dr Jelena Krizmanić, University of Belgrade, Faculty of Biology)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

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

Figures & Tables

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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)

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

List of Navicula species new to the diatom flora of Serbia

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