Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews...
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Transcript of Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews...
![Page 1: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/1.jpg)
Emily Runnells and Meghan BrownWith Thanks To:
~Field and Lab Help: The Brown and Halfman Lab Crews
~Funding: Senator Nozzolio and the State of NY, and Hobart and William Smith
![Page 2: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/2.jpg)
Owasco Lake• Relative to other
Finger Lakes– Large watershed– Small volume– Poor water quality
• Recently,phytoplankton blooms and macrophyte growth increasingly common
• 2007 ~2 μg/L Chl a
Chlorophyll
Asterionella
www.fingerlakes411.com/listing.asp?
![Page 3: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/3.jpg)
Why Monitor with Zooplankton?
Phytoplankton
Carnivorous Zooplankton
Forage fish
Sport fish
Herbivorous Zooplankton
Nutrients
![Page 4: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/4.jpg)
Measures of
Productivity
LOW HIGH
Secchi Transparency
Several meters, usually into the hypolimnion.
Few meters, in the epilimnion.
Chlorophyll a Less More
ZooplanktonLow density
Selective feeders
High density
Tolerant of lower quality food
![Page 5: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/5.jpg)
The Questions Asked:
• Does zooplankton composition data agree with other data measuring productivity in Owasco Lake?
• Does zooplankton composition analysis indicate increased productivity of Owasco Lake? ?
= =
![Page 6: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/6.jpg)
Sampling
Secchi Zooplankton Chl a
![Page 7: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/7.jpg)
Composition of Major Zooplankton Groups
0%10%20%30%40%50%60%70%80%90%
100%
5/18
/200
7
5/25
/200
7
6/1/
2007
6/8/
2007
6/15
/200
7
6/22
/200
7
6/29
/200
7
7/6/
2007
7/13
/200
7
7/20
/200
7
Calanoid Abundance
Cyclopoid Abundance
CladoceranAbundance
Low
Pro
duct
ivity
Hig
h P
rodu
ctiv
ity
May June July
Gannon Index =Σ Calanoid
Σ (Cyclopoid + Cladocerans)
![Page 8: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/8.jpg)
Station 1: Productivity Measures
0
1
2
3
4
5
6
75
/18
/20
07
5/2
5/2
00
7
6/1
/20
07
6/8
/20
07
6/1
5/2
00
7
6/2
2/2
00
7
6/2
9/2
00
7
7/6
/20
07
7/1
3/2
00
7
7/2
0/2
00
7
-0.001
0
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
Station 1: Productivity Measures
Gan
no
n
Sec
chi
Dep
th (
m)
Ch
l a
(μg
/L)
May June July
Σ Calanoid
Σ (Cyclopoid + Cladocerans)
![Page 9: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/9.jpg)
0
1
2
3
4
5
6
7
5/18
/200
7
5/25
/200
7
6/1/
2007
6/8/
2007
6/15
/200
7
6/22
/200
7
6/29
/200
7
7/6/
2007
7/13
/200
7
7/20
/200
7
-0.001
-0.0005
0
0.0005
0.001
0.0015
0.002
0.0025
Station 2: Productivity MeasuresC
hl
a (μ
g/L
)
Sec
chi
Dep
th (
m)
Gan
no
n
May June JulyΣ Calanoid
Σ (Cyclopoid + Cladocerans)
![Page 10: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/10.jpg)
And so….
• Does zooplankton composition data agree with other data measuring productivity in Owasco Lake?
•Yes and No
•Sometimes agreement
•Not consistently one parameter that is out of line
![Page 11: Emily Runnells and Meghan Brown With Thanks To: ~Field and Lab Help: The Brown and Halfman Lab Crews ~Funding: Senator Nozzolio and the State of NY, and.](https://reader036.fdocuments.us/reader036/viewer/2022062722/56649f295503460f94c43180/html5/thumbnails/11.jpg)
• Does zooplankton composition analysis indicate increased productivity of Owasco Lake?
►Yes: May and July►Overall lake has moderate productivity
•More Bosmina than Daphnia•More cyclopoid than calanoid