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300519 SE Trophic Biomarkers in Aquatic Ecology and Ecotoxicology (2021W)

current research status and future challenges

2.00 ECTS (1.00 SWS), SPL 30 - Biologie
Prüfungsimmanente Lehrveranstaltung
VOR-ORT

An/Abmeldung

Hinweis: Ihr Anmeldezeitpunkt innerhalb der Frist hat keine Auswirkungen auf die Platzvergabe (kein "first come, first served").

Details

max. 10 Teilnehmer*innen
Sprache: Englisch

Lehrende

Termine (iCal) - nächster Termin ist mit N markiert

Montag 04.10. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 11.10. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 18.10. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 25.10. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 08.11. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 15.11. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 22.11. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 06.12. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 13.12. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 10.01. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 17.01. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 24.01. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1
Montag 31.01. 15:00 - 16:30 Seminarraum 1.2, Biologie Djerassiplatz 1, 1.004, Ebene 1

Information

Ziele, Inhalte und Methode der Lehrveranstaltung

The provision of dietary energy, in particular during times of climate change, is important for survival strategies of all organisms. The aim of this course is to learn about mechanisms that drive sources, trophic transfer, and function of dietary organic matter through aquatic food webs. This course targets students with a strong background in ecology and/or with sufficient background in biochemistry as both groups will greatly benefit from learning how to address conceptual food web questions using modern biochemical methods, including stable isotopes, fatty acids, compound-specific stable isotopes, etc. First, students will learn about concepts of trophic ecology and energy pathways (units 1-5), then we will learn about the complexity of dietary pathways to organism at various trophic levels, including transfer, metabolism, and accumulation of physiologically essential (e.g., trace elements and essential fatty acids), and potentially toxic (e.g., persistent organic pollutants and heavy metals) diet. In particular, students will be introduced to new and upcoming dietary biomarkers (unit 6-8): A) stable isotopes and lipids/fatty acids (unit 6-7) in terrestrial and autochthonous (aquatic) organic matter are used to indicate dietary sources of carbon (d15C), nitrogen (d15N), and hydrogen (d2H) as markers of trophic relationships among organism within aquatic food webs. Moreover, stable isotopes (d13C and d2H) in fatty acids (unit 7) are one of the most upcoming methods to assess the flow and action of dietary energy in consumers and their organs. Depending on the biochemical stability of contaminants, the concurrent investigation of diet biomarkers and bioaccumulation patterns of contaminants in aquatic organism provides additional information of diet uptake success and its nutritional qualtiy (unit 8). In unit 9, students will be introduced to future challenges of pathways and mechanisms of aquatic energy flow, predator-prey interactions, community structure, and contaminant dynamics. This course provides integrative knowledge of how diet flow, if properly characterized, represents a metric of ecosystem health. This course will also include guest lectures from scientists of the United Nations and other prominent food web researchers.

Course topics:
1. Introduction to trophic biomarkers;
2. Carbon and energy budgets in terrestrial and aquatic ecosystems; 3. Energy provision to aquatic consumers;
4. Energy utilization by aquatic consumers;
5. Contaminants in aquatic food webs;
6. Trophic tracers in aquatic food webs - stable isotopes;
7. Trophic tracers in aquatic food webs - lipids, fatty acids, and compound-specific stable isotopes;
8. Trophic tracers in aquatic food webs - trace metals and emerging xenobiotics;
9. Future challenges - how will nutritional composition in aquatic food webs change with climate change ?

Art der Leistungskontrolle und erlaubte Hilfsmittel

Students are required to read, present and discuss research papers on trophic ecology, biomarkers, and ecotoxicology (40%) and to write a final report (60% of final grade).

Mindestanforderungen und Beurteilungsmaßstab

Students pursuing MSc or PhD will benefit from this course by reading and discussing new papers every class.
Student participation and scientific discussions (paper discussions) will be in English and evaluated in each class (40%) and by a final report (60%).

Prüfungsstoff

Kurzeinführung in den jeweiligen Themenkreis der aquatischen Nahrungsnetzforschung mit anschliessender Fachdiskussion der Pflichtliteratur.

Literatur

Selected papers on aquatic food web research will be provided for discussion during class.

Zuordnung im Vorlesungsverzeichnis

MEC-9

Letzte Änderung: So 03.10.2021 19:10