Tyler Gibson UNCW Center for Marine Science CHM 576 research presentation
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Transcript of Tyler Gibson UNCW Center for Marine Science CHM 576 research presentation
Nutrient Profiles along the Lower Cape Fear River Estuary from Bald Head Island (M18) up to Horseshoe Bend(HB)
Tyler Gibson
UNCW Center for Marine Science
CHM 576 research presentation
Stations sampled include M18, M23, M35, M42, M54, M61, and HB
Nutrients in the water column Nutrients drive phytoplankton blooms, along with
sunlight In the upper CFRE and lower Cape Fear River, nutrients do
not cause these blooms due to the ‘black’ river water. The closer to the ocean, the more phytoplankton and other
vegetation is able to photosynthesize and grow. This allows nutrient uptake.
This means that we should see decreasing nutrient levels from the upper CFRE (HB) to the more saline areas (M18) based on dilution by the seawater
Nutrient Analysis
Nutrient analysis was conducted by Auto-analyzer at CMS in Dr. Whitehead’s lab Nutrients analyzed include: Nitrate, Ammonium,
and Phosphate Data was then compared to other water quality
parameters in order to look for correlations to see what, if any, exist.
2009 Nutrient ConcentrationsCruise 1
Cruise 2
Nutrient Concentrations at surface in micrograms per Liter
0.002.004.006.008.00
10.0012.0014.0016.0018.00
stations
Phosphate
Nitrate
Ammonium
Nutrient Concentrations at depth in micrograms per Liter
0.002.004.006.008.00
10.0012.0014.0016.0018.00
stations
Phosphate
Nitrate
Ammonium
Nutrient Concentrations at surface in micrograms per Liter
0.002.004.006.008.00
10.0012.0014.0016.0018.00
stations
Phosphate
Nitrate
Ammonium
Nutrient Concentrations at depth in micrograms per Liter
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
stations
Phosphate
Nitrate
Ammonium
Average concentrations 2009
This graph shows the avg. values between Cruise 1 and 2 from 2009
2009 Avg. Nutrient Concentrations
-4.00
-2.00
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
m18 m23 m35 m42 m54 m61 HB
stations
Ammonium
Phosphate
Nitrate
Co
nc
. in
G
/L
Nutrient Concentrations: Cruise 1 vs. Cruise 2
Surface vs. Deep Phosphate for Cruise 1 and 2
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
m18 m23 m35 m42 m54 m61 HB
stations
deep1
deep2
surface1
surface2Con
c. P
in
G/L
Nutrient Concentrations: Cruise 1 vs. Cruise 2
Surface vs. Deep Nitrate for Cruise 1 and 2
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
m18 m23 m35 m42 m54 m61 HB
stations
deep1
deep2
surface1
surface2
Con
c. N
in
G/L
Nutrient Concentrations: Cruise 1 vs. Cruise 2
Surface vs. Deep Ammonium for Cruise 1 and 2
-0.50
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
m18 m23 m35 m42 m54 m61 HB
stations
deep1
deep2
surface1
surface2
Con
c. N
in
G/L
Nutrient concentration vs. Salinity
Average Nutrients vs. Salinity at Surface
-4.00
-2.00
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
29.81 27.29 21.555 17.355 15.41 13.13 6.01
Avg. Salinity from m18 to HB
Avg. Phosphate
Avg. Nitrate
Avg. Ammonium
Average Nutrients vs. Salinity
-5.00
0.00
5.00
10.00
15.00
20.00
30.235 29.17 24.585 21.5 18.998 17.18 10.058
Avg. Salinity from m18 to HB
Avg. Phosphate
Avg. Nitrate
Avg. Ammonium
Co
nc
. N
ut.
in
G
/L
Co
nc.
Nu
t. i
n
G/L
Average Nutrients vs. Salinity at Depth
-4.00
-2.00
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
30.66 31.05 27.615 25.645 22.585 21.23 14.105
Avg. Salinity from m18 to HB
Avg. Phosphate
Avg. Nitrate
Avg. AmmoniumC
on
c. N
ut.
in
G
/L
2009 Phosphate data vs. 2008 LCFRP dataCruise1 2009 vs. LCFRP Sept. 2008
-20.0-10.0
0.010.0
20.030.040.0
50.060.0
70.080.0
m18 m23 m35 m42 m54 m61 HB
stations
cruise1
2008 sept LCFRP
Co
nc.
in
G
/L
Cruise2 2009 vs. LCFRP Oct. 2008
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
m18 m23 m35 m42 m54 m61 HB
stations
cruise2
2008 oct LCFRP
Co
nc.
in
G
/L
2009 Nitrate data vs. 2008 LCFRP NOx- data
Cruise1 2009 vs. LCFRP Sept. 2008
0.0
100.0
200.0
300.0
400.0
500.0
600.0
m18 m23 m35 m42 m54 m61 HB
stations
cruise1
2008 sept LCFRP
Co
nc.
in
G
/L
Cruise2 2009 vs. LCFRP Oct. 2008
0.0
200.0
400.0
600.0
800.0
1000.01200.0
1400.0
1600.0
1800.0
2000.0
m18 m23 m35 m42 m54 m61 HB
stations
cruise2
2008 oct LCFRP
Co
nc.
in
G
/L
2009 Ammonium data vs. 2008 LCFRP data
Cruise 2 2009 vs. LCFRP Oct 2008
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
m18 m23 m35 m42 m54 m61 HB
stations
Ammonium09
Ammonium08
Co
nc.
in
G
/L
Cruise 1 2009 vs. LCFRP sept 2008
-20.0
0.0
20.0
40.0
60.0
80.0
m18 m23 m35 m42 m54 m61 HB
stations
Ammonium09
Ammonium08
Co
nc.
in
G
/L
Phosphates over the past 5 yrs compared to our data
Phosphate levels over the past 5 yrs in the LCFRE from HB to m18
-40.0-20.0
0.0
20.040.060.080.0
100.0
120.0140.0160.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise1 2009
2008 sept LCFRP
2007 sept LCFRP
2006 sept LCFRP
2005 sept LCFRPCo
nc.
in
G
/L
Phosphate levels over the past 5 yrs in the LCFRE from HB to m18
-200.0
-100.0
0.0
100.0
200.0
300.0
400.0
500.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise2 2009
2008 oct LCFRP
2007 oct LCFRP
2006 oct LCFRP
2005 oct LCFRP
Co
nc.
in
G
/L
Nitrate concentrations over the past 5 yrs Nitrate levels over the past 5 yrs in the LCFRE from HB to m18
-200.0
-100.0
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise1
2008 sep LCFRP
2007 sep LCFRP
2006 sep LCFRP
2005 sep LCFRP
Co
nc.
in
G
/L
Nitrate levels over the past 5 yrs in the LCFRE from HB to m18
-1000.0
-500.0
0.0
500.0
1000.0
1500.0
2000.0
2500.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise2
2008 oct LCFRP
2007 oct LCFRP
2006 oct LCFRP
2005 oct LCFRP
Co
nc.
in
G
/L
Ammonium levels over the past 5 yrs.Ammonium levels over the past 5 yrs in the LCFRE from HB to m18
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise1
2008 sep LCFRP
2007 sep LCFRP
2006 sep LCFRP
2005 sep LFCRP
Co
nc.
in
G
/L
Ammonium levels over the past 5 yrs in the LCFRE from HB to m18
-20.00.0
20.040.060.080.0
100.0120.0140.0
160.0180.0
m18 m23 m35 m42 m54 m61 HB
stations
Cruise2
2008 oct LCFRP
2007 oct LCFRP
2006 oct LCFRP
2005 oct LFCRP
Co
nc.
in
G
/L
References
http://chm576.pbworks.com/ http://www.uncwil.edu/CMSR/aquaticecology/
laboratory/LCFRP/index.htm