Information
Ecological parameter: phytoplankton guild (PhytoLoss)
Parameter group: life related parameters
Explanation:
Phytoguilds describe the feeding ability of phytoplankton species and follow the classifications of the PhytoLoss evaluation tool (www.phytoloss.de). According to Deneke et al. (2015), phytoplankton taxa are divided into 12 guilds and represent a reduction of the classification of phytoplankton into "morpho-functional groups" by Salmaso & Padisák (2007).
Deneke, R., Maier, G., Mischke, U. (2015): Das PhytoLoss-Verfahren. Berücksichtigung des Zooplanktons in der Seenbewertung nach EU-WRRL durch die Ermittlung der Grazing-Effektstärke und anderer Indizes. Ausführliche Verfahrensvorschrift. Stand: März 2015, Version 2.0. Im Auftrag der Länderarbeitsgemeinschaft Wasser, Expertenkreis Seen, Projekt O8.12. Projektmodul PhytoLoss, Berlin. 130 S.
Salmaso, N., Padisak, J. (2007): Morpho-Functional Groups and phytoplankton development in two deep lakes (Lake Garda, Italy and Lake Stechlin, Germany). Hydrobiologia 578: 97–112.
Abbreviations:
| Category name: | Abbreviations: | Explanation: |
|---|---|---|
| small Bacillariophytes | B1 | < 30 µm GALD |
| large Bacillariophytes | B2 | > 30 µm GALD, without chain-forming colonies |
| small colonies | C1 | colonial Chlorophyta < 30 µm GALD |
| medium-sized colonies | C2 | 30 - 100µm, Chlorococcales, Phytomonadina, Chroococcales and others |
| gelatinous large colonies | C3 | > 100 µm GALD, Phytomonadina, Chroococcales, Chlorococcales |
| small Dinophytes - <30µm diameter | D1 | < 30 µm diameter |
| large Dinophytes | D2 | > 30 µm diameter |
| thin filaments | F1 | Oscillatoriales |
| medium-thick filaments | F2 | Chlorophytes, Conjugatophytes, Xanthophytes, Cyanobacteria, single Nostocales |
| thick filamentous aggregates | F3 | chain-forming Bacillariophytes, flocs-forming Nostocales |
| small Chrysophytes/Haptophytes, Euglenophytes, Cryptophytes, Chlorococcales, unicell Phytomonad | U1 | small Chrysophytes/Haptophytes, Euglenophytes, Cryptophytes, Chlorococcales, unicell Phytomonad |
| large Chrysophytes/Haptophytes, Euglenophytes, Conjugatophytes, Chlorophytes, Chroococcales | U2 | large Chrysophytes/Haptophytes, Euglenophytes, Conjugatophytes, Chlorophytes, Chroococcales |
| Taxagroup | Number of assigned taxa / total number of taxa - percentage |
|---|---|
| Bacillariophyceae | 247 / 662 - 37.3% |
| Chlorophyceae | 332 / 621 - 53.4% |
| Choanoflagellata | 8 / 14 - 57.1% |
| Chrysophyceae | 60 / 165 - 36.3% |
| Coccolithophyceae | 1 / 5 - 20% |
| Conjugatophyceae | 62 / 299 - 20.7% |
| Coscinodiscophyceae | 70 / 117 - 59.8% |
| Cryptophyceae | 19 / 31 - 61.2% |
| Cyanophyceae | 134 / 246 - 54.4% |
| Dictyochophyceae | 3 / 7 - 42.8% |
| Dinophyceae | 33 / 71 - 46.4% |
| Euglenophyceae | 21 / 69 - 30.4% |
| Fragilariophyceae | 36 / 87 - 41.3% |
| Klebsormidiophyceae | 8 / 11 - 72.7% |
| Mediophyceae | 3 / 3 - 100% |
| Prasinophyceae | 4 / 13 - 30.7% |
| Protozoa | 1 / 8 - 12.5% |
| Trebouxiophyceae | 9 / 16 - 56.2% |
| Ulvophyceae | 3 / 9 - 33.3% |
| Xanthophyceae | 15 / 45 - 33.3% |