Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund DIATOM PHYTOBENTHOS IN LAKES OF THE RIVER WEL BASIN Joanna Picińska-Fałtynowicz INSTITUTE OF METEOROLOGY AND WATER MANAGEMENT WROCŁAW BRANCH, DEPARTMENT OF ECOLOGY
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund TJ = (L i TJ i wTJ i )/(L i W i ) where: L i – relative abundance of i-taxon in a sample (among diatom valves), TJ i – trophic value (optimum) of i-taxon wTJ i – weight value (tolerance) of i-taxon DIATOM TROPHIC INDEX FOR LAKES TJ
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund MATERIAL Sampling campaign – September 2009 Community – epiphyton, mainly from reed A total of 15 samples were taken
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Site Code Conduc t 25 o C pH TOCDOCPtotRSPN-NO 3 NO 2 +NO 3 N-N) 2 SiO 2 HardnessCa Chloride s Colo ur S/cm pHmg/l mg/l PO 4 mg/l N mg/l mgCaCO 3 / l mg/l HAZ EN LI-J ,137,906,010,0690,0270,040,050,0077, ,626 LI-J ,347,375,730,0780,0130,02 0,0057, DW-J ,196,625,420,0550,0270,01 0,0043, DW-J ,209,227,000,0420,0070,01 0,0055, GJ-J ,278,678,490,1310,0910,01 0,0047, GJ-J ,279,957,980,1160,0430,000,010,0068, ,427 DM-J ,077,505,110,0430,0780,01 0,0035, DM-J ,137,185,600,0470,0190,02 0,0035, ,914 RU-J ,176,854,930,1440,1700,02 0,00310, ,910 RU-J ,155,822,230,2900,2250,02 0,00311, ,112 HA-J ,399,614,800,0980,0300,02 0,0058, ,117 TA-J ,398,086,250,1450,0320,010,020,00613, ,629 ZR-J ,109,066,300,1060,0210,01 0,0059, ,612 ZW-J ,285,984,050,1300,0400,000,010,00814,814148<527 KI-J ,924,183,230,0940,1400,03 0,0034, <56 PHYSICAL AND CHEMICAL VARIABLES OF LAKES WATER
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund PRELIMINARY RESULTS TaxonRelative abundance [%] Achnanthidium minutissimum33.1 Encyonopsis subminuta4.9 Epithemia adnata19.2 Epithemia sorex8.2 Epithemia turgida3.3 Cymbella affinis2.0 Cymbella silesiaca2.8 Cymbella lanceolata0.8 Gomphonema pumilum8.2 Navicula capitatoradiata1.2 Navicula cryptotenella4.9 Navicula radiosa2.8 Navicula tripunctata1.4 Nitzschia spp.3.3 Rhopalodia gibba0.8 Species structure of diatom epiphyton in Lake Dąbrowa Mała, site 02
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Thank you for attention !!!