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Mischke, U. (2018) Endbericht zum LAWA-Projekt (LFP O2.17) Aktualisierung und Angleichung der bewertungsrelevanten Taxaliste Phytoplankton an die bundesweite Taxaliste der Gewässerorganismen Leitung und Bericht: Dr. Ute Mischke Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB) im Forschungsverbund Berlin e.V. Erstellt: 30.04.2018 Unter Mitarbeit der Fachgruppe „Taxaliste Phytoplankton“ In wissenschaftlicher Kooperation mit: Wolf-Henning Kusber Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin Mittels Unteraufträge an: Dr. Juliane Kasten Lüttig & Friends, Buckautal Dr. Claus-Dieter Dürselen AquaEcology, Oldenburg Dr. Lothar Täuscher Phykologie, Hydrobotanik, Gewässerökologie Berlin Eberhard Hoehn Limnologie Büro Hoehn (LBH), Freiburg Ursula Riedmüller LBH / BNÖ, Titisee Annette Tworeck LBH, Freiburg Lydia Oschwald LBH, Freiburg Projektlaufzeit: 01.02.2017 – 31.03.2018 gefördert im Länderfinanzierungprogramm „Wasser, Boden, Abfall“ im Jahr 2017. LFPO2.17 – Endbericht „Angleichung Taxaliste Phytoplankton“, 30.04.2018, Mischke et al. Seite 1 LFPO2.17 – Endbericht „Angleichung Taxaliste Phytoplankton“, 30.04.2018, Mischke et al. Seite 2 Inhalt Zusammenfassung ................................................................................................................................... 5 1 Aufgabenaufteilung im Taxalisten-Projekt ...................................................................................... 7 2 Projekt-externe Abstimmungen ...................................................................................................... 7 2.1 Abstimmung mit der Revision der Bundestaxaliste ...................................................................... 8 2.2 Durchführung eines öffentlichen Workshops ............................................................................... 8 3 Plan zur Veröffentlichung der Projektprodukte und der Weiternutzung ....................................... 9 4 Einarbeitung der neuen Nomenklatur in die Taxaliste Phytoplankton ......................................... 10 4.1 Einführung in die Revision der operativen Taxaliste ................................................................... 10 4.2 Revision der Klassifikation ........................................................................................................... 10 4.3 Organisatorisches zur Revision der Art- und Gattungsnamen .................................................... 11 4.4 Einführung in die Revision der Algen-Listen ................................................................................ 11 4.5 Revision der Blaualgen-Liste ........................................................................................................ 12 4.6 Revision der Kieselalgen-Liste ..................................................................................................... 12 4.7 Revision der Euglenophyta-Liste ................................................................................................. 15 4.8 Revision der Desmidiales ............................................................................................................. 15 4.9 Revision der Chlorophyceae-Liste ............................................................................................... 16 4.10 Revision der limnischen Dino-, Chryso- und Cryptophyceae sowie der restlichen Gruppen .... 17 4.11 Aufnahme neu nachgewiesener Taxa in die HTL aus Seen und Flüssen ................................... 18 4.11 Angleichung an die Bundestaxaliste und Erstellung der HTL_2018 .......................................... 19 Aufrechterhaltung der ökologischen Zustandsbewertung von Seen und großen Fließgewässern mittels Phytoplankton ....................................................................................................................... 20 5 Aufnahme von Geokörperinformationen zur Umsetzung der DIN EN 16695 ............................... 22 6 Steckbriefe von Indikatorarten des Phytoplanktons in Seen und Fließgewässern ....................... 26 7 Literatur: ........................................................................................................................................ 28 Literatur zu allgemeinen Projektinhalte ............................................................................................ 28 Bestimmungswerke und zu vergleichende Fachliteratur .................................................................. 29 Anhänge................................................................................................................................................. 36 Anhang I: Übersicht der Klassifizierung der Grünalgen ..................................................................... 36 Anhang II: Liste der in Steckbriefen dargestellten Indikatorarten der 1. Lieferung (Kasten et al. 2018) .................................................................................................................................................. 38 Anhang III: Kopie eines 3-seitigen Steckbriefes für eine Indikatorart ............................................... 39 LFPO2.17 – Endbericht „Angleichung Taxaliste Phytoplankton“, 30.04.2018, Mischke et al. Seite 3 LFPO2.17 – Endbericht „Angleichung Taxaliste Phytoplankton“, 30.04.2018, Mischke et al. Seite 4 Zusammenfassung Das Projekt befasste sich mit der Angleichung und Aktualisierung der operativen Taxaliste des Phytoplanktons (HTL) an das Kodierungssystem der Bundestaxaliste (BTL mit DV-Nr) für biologische Gewässeruntersuchungen. Im Rahmen der Angleichung beider Listen wird die HTL Teilmenge der BTL, und ist über die gemeinsame Kodierung mittels DV-Nr. verknüpfbar. Beide Listen mit Stand vom März 2009 bzw. Juni 2011 waren nicht mehr aktuell. Es waren zahlreiche Namensänderungen nötig, die auf neuen Erkenntnissen zur Systematik beruhen. Weiterhin benötigten einige bisher übersehene Arten eine angepasste Kodierung, die durch die intensiven Untersuchungen im Rahmen der Monitoringprogramme zur Wasserrahmenrichtlinie (WRRL) nachgewiesen wurden. Der vorliegende Bericht beschreibt die Vorgehensweise der Aktualisierung der HTL. Zusammen- fassende Beschreibungen der Aufgaben und Vorgehensweise finden sich auch in den Beiträgen von Mischke et al. (2018) und Hoehn et al. (2018). Zum Bericht gehören benutzerorientierte Projektprodukte, deren Inhalte und Pläne zur Veröffent- lichung im Folgenden näher erläutert werden. Für Berichtszwecke stehen sie unter folgendem Link bis zum 31. Mai 2018 zum Download für die LAWA-interne Nutzung zur Verfügung: https://nimbus.igb-berlin.de/index.php/s/8alwlosuIIvIDTs a) HTL_2018_vorab_o_BTL_Revi.xlsx b) HTL_2009_ergGeokörperInfo.xlsx c) Begleittext_Taxon_Steckbriefe_Phytoplankton_Vorab.pdf d) 50 Steckbriefe von Indikatortaxa des Phytoplanktons im Vorabdruck der 1. Lieferung (PDF-Files) Die Revision der HTL erfolgte nach einem Konzept, welches in einem vorangegangenen Projekt (LFP O2.16; Mischke et al. 2016) abgestimmt wurde, und hat als Produkt eine aktualisierte und erweiterte operative Taxaliste in Tabellenformat (Produkt a). Neben der nomenklatorischen Revision wurden folgende zusätzliche, qualitätssichernde Informationen im Projekt zusammengestellt: Einarbeitung von Geokörperinformationen zur Biovolumenberechnung (enthalten in Produkt a und Erläuterungen in Produkt b) und Erarbeitung einer Formatvorlage für Taxa-Steckbriefe (Produkt d) und Steckbriefe für ausgewählte Indikatorarten (Produkt c). Die nomenklatorische Aktualisierung aller 1.553 Phytoplanktontaxa in der HTL stellte die Haupt- aufgabe des Projektes dar. Sie basierte auf der Auswertung umfangreicher taxonomischer Fachlitera- tur. Die Liste an neuen Bestimmungswerken und relevanten Publikationen wurde gegenüber dem vorangegangenen Projekt nochmals erweitert. Im ersten Schritt wurde in der HTL der Revisionsbedarf pro Taxon markiert und in einem zweiten Schritt alle erforderlichen Informationen in Form einer Revisionstabelle zusammengestellt, um a) die Einarbeitung in die HTL und b) in die BTL vorzubereiten. Dafür wurden 213 Synonyme mit einem Verweis auf den neu akzeptierten Taxonnamen versehen. Die neuen Taxonnamen und die dazu gehörenden neuen Gattungen wurden mit einem separaten Code an die Liste angefügt, wie es dem Vorgehen in der BTL entspricht. Meldungen von bisher nicht gelisteten Arten des Phytoplanktons wurden nach den vereinbarten Aufnahmeregeln bearbeitet (s. Kap. 4.11). Insgesamt umfasst die neue HTL 358 neue Taxanamen. Mit dem Bericht wird die aktualisierte HTL in einer Vorabversion vorgelegt (Produkt a). Nach abschließender Prüfung und Vergabe der DV-Kodierung durch die relevante Fachabteilung am LFPO2.17 – Endbericht „Angleichung Taxaliste Phytoplankton“, 30.04.2018, Mischke et al. Seite 5 Umweltbundesamt ist geplant, die HTL auf dem Internetprotal gewaesser-bewertung.de zu veröffentlichen. Die Angleichung an die BTL wurde durch die Übergabe der benötigten Feldinfor- mationen aller revidierten HTL-Taxa in Form einer vereinbarten Revisionstabelle an die relevante Fachabteilung am Umweltbundesamt durch das Projekt vorbereitet. Steht die Bundestaxaliste mit den revidierten Phytoplanktontaxa vollständig zur Verfügung, können die neu erforderlichen DV-Kodierungen an die HTL (HTL_2018_DV) und in die Tools eingefügt werden. Die Bewertungstools PhytoSee 7.1 und PhytoFluss 4.1 sollen in weiteren Projekten so vorbereitet, dass sie DV-kodierte Befundlisten verarbeiten können. Für die Index-Berechnung mit den o.g. Bewertungstools nach WRRL besteht übergangsweise die Alternative, die Befunde des Phytoplanktons, wie in
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