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All issues Volume 55 (2019) Ann. Limnol. - Int. J. Lim., 55 (2019) 22 Full HTML
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Table 1

Characteristics of the sampling sites in Plitvice Lakes National Park. Abbreviations: SBR: Spring of the Bijela rijeka, URBR: Upper reach of the Bijela rijeka, SCR: Spring of the Crna rijeka, MRCR: Middle reach of the Crna rijeka, LRCR: Lower reach of the Crna rijeka, TBLB: Tufa barrier Labudovac, TBKM: Tufa barrier Kozjak-Milanovac, TBNB: Tufa barrier Novakovića Brod, PS: Plitvica stream, RK: river Korana in the village of Korana; A: angiosperms, B: bryophytes, p: pebbles, s: stones, tc: tufa chunks.

Site SBR URBR SCR MRCR LRCR TBLB TBKM TBNB PS RK
Latitude N 44°50′05″ N 44°50′04″ N 44°50′14″ N 44°50′10″ N 44°50′22″ N 44°52′17″ N 44°53′39″ N 44°54′07″ N 44°54′08″ N 44°55′33″
Longitude E 15°33′43″ E 15°33′33″ E 15°36′28″ E 15°36′30″ E 15°35′59″ E 15°35′59″ E 15°36′32″ E 15°36′38″ E 15°36′27″ E 15°37′09″
Altitude (m) 720 716 677 670 667 630 546 504 556 390
Water temperature (°C)                    
Min 7.3 7.2 7.7 7.1 6.9 2.4 3.1 3.3 3.2 1.7
Max 7.8 10.3 8.2 9.7 9.6 21.4 22.9 22.9 15.4 19.8
O2 (mgL−1)                    
Min 7.6 8.2 8.3 7.9 8.8 6.7 8.7 8.4 8.7 9
Max 11.8 11.8 11.7 12.5 13.1 12.3 12 12.4 13 14.1
O2 (%)                    
Min 65.2 71.2 87 68.8 96.7 59.7 72 77.3 75.7 79.6
Max 101.8 106.6 105.7 115.9 111.1 139.2 113.6 117.1 122.5 121
pH                    
Min 6.9 7.5 7.4 7.7 7.9 6.8 6.9 8.2 6.8 6.8
Max 7.8 8.4 8.2 8.6 8.4 8.7 8.4 8.7 8.9 8.7
Alkalinity (mg CaCO3 L−1)                    
Min 235 230 210 210 215 210 200 185 225 180
Max 295 295 260 290 280 260 220 230 280 215
Conductivity (μScm−1)                    
Min 463 472 405 403 406 366 354 334 409 321
Max 505 498 424 426 481 426 443 387 444 385
NO3 (mg N L−1)                    
Min 0.5 0.66 0.64 0.58 0.64 0.36 0.36 0.37 0.62 0.48
Max 1.22 1.42 1.1 0.91 0.82 0.79 1.13 0.77 1.16 1.05
NO2 (mg N L−1) <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
PO4-P (mg L−1) 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
NH4+ (mg L−1)                    
Min <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Max 0.07 0.07 0.08 0.065 0.028 0.059 0.03 0.028 0.072 0.055
Site SBR UBR SCR MRCR LRCR TBLB TBKM TBNB PS RK
Microhabitat S2 S3 S2 S3 S3 S3 S2 S3 S3 S3 S3 S3
Substrate type A on p, s B on p, s A on p, s B on p, s B on s B on p, s A on s B on tc, p B on tc, p B on tc, p B on tc B on tc, p
Water depth (cm)                        
Min 3 2 4 2.5 5 6.5 10 4 1 4.5 2.5 4
Max 18 14 14 16 16 24 75 12 15 18 14 30
Current velocity (cms−1)                        
Min 1 0 0 2 3 14 0 2 11 9 8 1
Max 38 93 53 54 67 84 22 71 109 104 86 87
Aquatic vegetation                        
Bryophytes                        
Hygroamblystegium tenax var. tenax (Hedw.) Jenn.           *   *       *
Hygroamblystegium fluviatile (Hedw.) Loeske   *       *       *   *
Cinclidotus aquaticus (Hedw.) Bruch & Schimp.       * * *     *      
Platyhypnidium riparioides (Hedw.) Dix.         *              
Fissidens asplenioides Hedw.                 * *    
Palustriella commutata (Brid.) Ochyra                 *   *  
Didymodon tophaceous (Bridel) Lisa, Elenc. Musch.                 *      
Angiosperms                        
Apium repens (Jacq.) Lag. *   *                  
Berula erecta (Huds.) Coville             *          

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