aquatic ecology/adv. aquatic ecology eees 47/57/7730 – 3 credits (fall 2011) introduction syllabus...
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Aquatic Ecology/Adv. Aquatic Ecology
EEES 47/57/7730 – 3 credits (Fall 2011)
• Introduction
• Syllabus
• Why study aquatic ecology?
• Chapter 1 – Dodson
Aquatic Ecology:
A discipline that uses the principles/methods of ecology to study aquatic environments.
Fig. 1.2 & 1.3. Location of lakes and streams mentioned in the text book
Pre
sen
ce
of
we
tlan
ds
Northern Canada/Alaska
Continental U.S. EquatorialNeotropics
Nu
mb
er
of
we
tla
nd
sc
ien
tis
ts
Latitude distribution of wetlands based on Matthews and Fung (1987), global lakes and wetlands database (GLWD), and gross wetland map (redrawn from Lehner and Doll 2004)
Why study Aquatic Ecology?Some recent headlines
• Record amounts of dissolved phosphorus hit Lake Erie
Why study Aquatic Ecology?Some recent headlines
• Record amounts of dissolved phosphorus
hit Lake Erie
• Algae blooms could threaten Lake Erie
ecosystem (http://www.youtube.com/watch?v=5TlXQazNx00)
Why study Aquatic Ecology?Some recent headlines
• Record amounts of dissolved phosphorus
hit Lake Erie
• Algae blooms could threaten Lake Erie
ecosystem (http://www.youtube.com/watch?v=5TlXQazNx00)
Why are you taking Aquatic Ecology
A. I love lakes, rivers, and oceans and the organisms found in them
B. Aquatic ecosystems provide a unique model system for the study of complex ecological processes
C. I like to fish
D. This was the only elective I could schedule
Describe your level of exposure to aquatic ecosystem. Have you done some research? Do you fish, snorkel, SCUBA, hike near rivers etc……..
epilittoral
supralittoraleulittoral
spray zone
spray & wavesbetween high & low water
upper littoral; emergent veg
middle littoral; floating veg
lower littoral; submerged veg
littoriprofundal; photosynthetic bacteria & algae
profundal; no vegetation or algae
litto
ral
pelagia
Within-Lake Zones
epilimnion
metalimnionthermocline
hypolimnion
Introduction to some aquatic organisms & habitats
pelagic zone: water column in lake, ocean, or estuary (not often applied to rivers).
plankton: pelagic organisms that can’t swim well in the horizontal plane ex. algae (phytoplankton), invertebrates (zooplankton), and larval fish
necton: pelagic organisms that can swim well in the horizontal plane ex. adult fish
benthic zone: the bottom of a lake, river, estuary or ocean. Includes algae, plants, invertebrates, and fish.
planktonnekton
benthos
River habitats pool: deep, slow velocity, fine substrates run: between pool & riffle riffle: shallow, high velocity, gravel cobble substrate
RR
R R
PP
PP
flow
P R
P R
P
gravel bars
Kalff 2002
Experimental duration vs. experimental area in limnology
Crater Lake, Oregon
Add image crater lake and Great Lakes watershed
Crater Lake, Oregon: 600 m deep and 53 km2 large caldera lake (NPS)
Fig. 1.12. Charles Elton's “box and arrow” nitrogen cycle model (1927)
Fig. 1.13. Generalized food web model of a lake (boxes labeled with names of aquatic taxa, as opposed to a trophic model dealing with energy and nutrient flow)
Fig. 1.14. Trophic model (Lindeman 1941)
Empirical predictive model
"A lecture is a process in which information passes from the notes of the professor into the notes of the student
without passing through the minds of either."
(Gilstrap and Martin, 1975)