Snapshot Day 10/18/11 Data
(Salt Front RM 35.7
RIVER MILE 25W
Piermont Pier
Margie Turrin & 5 Lamonters, Lamont-Doherty Earth Observatory
Sonia Cairo, Keep Rockland Beautiful
Kathy Galione, Rockland County Americorps
Latitude N 41 degrees 02’590 Longitude W 73 degrees 53’789
Tom Mullane, Jo Mosella, Eileen
McCaffrey– Pearl River HS APES – 24
students
Ellen Pollina, Pat Kilkelly, Tappan Zee
HS – AP Bio – 25 students
Jen Mazza,– Clarkstown South High School –
15 IB Env. Sci.
Location: Piermont Pier, Piermont NY
Area: Man made fishing/shipping pier at the east end, long pier with paved roadway and
vegetation along both sides
Surrounding Land Use: Urban/residential 80% , Forested 20%
Sampling Site: Pier, roadway in center of whole pier, parking area at end, Plants and
trees along side. Shoreline Rip Rap, collected wood in area and piping entering river on
the South of sampling site
Plants in area: some plants in the water but lots of plants along pier & lots of water
celery washed up on shore
Water depth: Varied by location on the pier and by tide
River Bottom – sandy/rocky bottom with marsh grass growing in or near the water
Plants in area: sumac 30%; marsh plants 70%; reeds & cattails
ITEM
Time
Reading 1
Physical
Air
Temperature
9:15AM
14C
9:50 AM
17C
10:10 AM
17.5C
10:30 AM
20C
10:56 AM
21C
11:30 AM
24 C
12:20 PM
21.5 C
1:05 PM
26 C
1:29 PM
23.5 C
Wind Speed
Time
Anenometer
Description
Very windy
9:15 AM
Beaufort # &
Direction
1 - Sw
Weather
recently
Water
Temperature
Comments
1.1 knots
Mostly Cloudy,
light drizzle
9:50 AM
1 - SW
1.1 knots
30% Cloud
cover, no rain
10:10AM
1 – SW
1.0 knots
70% cloud
cover, no rain
10:30 AM
1 - SW
2.5 knots
Partly Cloudy,
no rain
10:56 AM
1 - SW
2.9 knots
Partly Cloudy,
no rain
11:30 AM
1 - SW
2.2 knots
25% Cloudy,
no rain
12:20 PM
1-S
2 knots
Clear, no rain
1:05 PM
1-S
1.2 knots
Clear, few
scattered
clouds, no rain
1:29 PM
1-S
2.4 kts.
Clear, no rain
Some small amount of rain last few days, mainly nice weather
Average
9:45 AM
10:20AM
11:00AM
16C
16C
17C
17C
18.4 C
19C
16.5C
17.2C
18.5C
Turbidity –
Chlorophyll
Chemical
DO
Drop count
DO
12:20PM
1:15 PM
Time
9:14 AM
9:45 AM
10:09 AM
10:34 AM
11:03 AM
11:20 AM
12:30 PM
12:50 PM
1:15 PM
1:33 PM
9:22AM
17C
17C
3 reading
10.4, 11.2, 11.8
8.9, 13.9, 12
16.6, 16, 14.1
16.0, 19, 20
23.2, 25, 20.5
26, 26.9, 21
21.7, 32.5, 30.2
27.4, 25.1, 25.4
30.6, 31.2, 28.6
26.0, 24.0, 25.0
1.0
18C
18.2C
Average
11.13 cm
11.6 cm
15.6 cm
18.3 cm
22.8 cm
24.2 cm
28.1 cm
25.9 cm
30.1 cm
25 cm
17.5C
17.6C
Long site tube
North side of
pier by
blockhouse
9:56 AM
1.5
10:15 AM 1.0
10:35 AM 1.0
11:10AM
0.5
11:35 PM
0.5
12:35 PM
1.5
1:02 PM
0.4
1:35 PM
1.5
*Water sampled at surface and at depth with niskin bottle reported in
two separate sets of readings below. Depth for bottom samples ranged
from 3.4 meters to 4.3 meters
SURFACE SAMPLES
TIME
DO Reading
Water Temp % Saturation
9:15AM
error
16C
10:10AM
error
16.5C
11:00AM
error
16.5C
12:00PM
8 mg/L
85%
17C
12:25 PM
10 mg/L
100%
17C
1:05 PM
8 mg/L
85%
18C
BOTTOM SAMPLES
TIME
DO Reading
Water Temp % Saturation
9:15AM
9.0 mg/L
87%
14C
10:10AM
error
15C
11:00AM
7 mg/L
70%
16C
12:25 PM
9 mg/L
90%
17 C
1:05 PM
9 mg/L
95%
18C
pH
TIME
SURFACE SAMPLES
colorimeter
9:15AM
10:10AM
11:00AM
12:25 PM
1:05 PM
7.3
6.9
7.2
7.3
7.2
Phosphates
TIME
SURFACE SAMPLES
colorimeter
9:15AM
10:10AM
0.2 mg/L
0.24 mg/L
11:00AM
12:25 PM
1:05 PM
TIME
0.22 mg/L
0.17 mg/L
0.06 mg/L
SURFACE SAMPLES
9:15AM
10:10AM
11:00AM
12:25 PM
1:05 PM
TIME
0.2 mg/L
<0.1
<0.1
0.2
0.1
SURFACE SAMPLE
9:15AM
10:10AM
11:00AM
12:25 PM
1:05 PM
TIME
120 ppm
160 ppm
170 ppm
85 ppm
80 ppm
SURFACE SAMPLE
Nitrates
Drop count
Alkalinity
Drop count
Salinity -
* seem too high 9:15AM
*seem too high
TidesTime
9:10 AM
9:42 AM
Glass Cylinder
Hydrometer
1.004 density – 5.1 ppt
10:10AM
11:00AM
12:25 PM
1:05 PM
Tide Stick
1.008 density – 10.6 ppt
1.002 density – 2.9 ppt
1.001 – 1.5 ppt
1.002 – 2.9 ppt
Tide
20 cm
30 cm
Rising
Rising – 10 cm/32 mins
DEPTH
SAMPLES
7.2
7
7
7.4
7
DEPTH
SAMPLES
0.2 mg/L
0.2 mg/L
0.2 mg/L
0.1 mg/L
0.16 mg/L
DEPTH
SAMPLES
<0.1 mg/L
<0.1 mg/L
<0.1 mg/L
<0.1 mg/L
<0.2 mg/L
DEPTH
SAMPLES
85 ppm
88 ppm
120 ppm
80 ppm
90 ppm
DEPTH
SAMPLES
Quantabs
ClUsed low tabs
exceeded
chart
1001 ppm Cl1204 ppm
1250 ppm
Not read
Rate of
Change
0.313 cm/min
Converted to
Total Salinity
1.8 ppt
2.175 ppt
2.258 ppt
Water Depth
end of pier-cm
340 cm
335 cm
10:09AM
10:32 AM
11:03 AM
11:39AM
12:25 PM
1:20 PM
1:40 PM
40 cm
50 cm
60 cm
80 cm
100 cm
110 cm
Lost stick
Rising – 10 cm/27 min
Rising – 10 cm/23 min
Rising- 10 cm/31 min
Rising – 20 cm/36 min
Rising – 20 cm/46 min
Rising- 10 cm/45 min
Rising
0.37 cm/min
0.43 cm/min
0.32 cm/min
0.56 cm/min
0.43 cm/min
0.22 cm/min
Currents
Time
CM/#SEC
Cm per sec
9:15 AM
9:42 AM
346/45
882/26
7.7 cm/sec
33.92
359 cm
385 cm
380 cm
410 cm
401 cm
430 cm
404 cm*
different spot
North/South
Ebb/Flood/Still
North/Flood
North/Flood
10:05 AM
1030/51
20.4
North/Flood
10:32 AM
10:58 AM
11:30 AM
12:25 PM
1:20 PM
1:40 PM
1220/26
1170/41
870/19
820/20
1050/25
210/9
47.1
28.5
46
41
42
23
North/Flood
North/Flood
North/Flood
North/Flood
North/Flood
North/Flood
Number
Caught
Species
Measure of
largest
TIME &
CATCH
3
Atlantic Silverside
9 cm
9:25 AM
2
2
1
51
Striped Bass
Herring
Banded Killifish
Atlantic Silverside
7 cm
13 cm
11 cm
9 cm
Diversity 4
8 total catch
4
1
3
*2
2
41
10
1
Striped Bass
Menhaden
White Perch
Naked Gobies
Crabs
Atlantic Silverside
Herring
Striped Bass
7 cm
59
65
2
1
Herring
Atlantic Silverside
Menhaden
Striped Bass
Toss close to
pier ~ 40 m
Toss ~60-80 m
out
~30-40 m out
Toss ~35 m out
Fish Catch
Northside of
pier
Rotation #1
4 seines
Rotation #2
6 seines
*fish trap
Rotation #3
Rotation #4
15 cm
3 cm
9 cm
10 cm
12 cm
10 cm
10:35 AM
Diversity 6
63 total catch
11:00 AM
Diversity3
52 total
12:45 PM
Diversity 5
*Fish trap
Rotation #5
*1
30
9
Naked Goby
Atlantic Silverside
Herring
10 cm
Grand Total
Macroinvertebrates
Rock
barnacles
Comb
jellies
Plankton
Zooplankton
Isopoda, Amphipoda,
Cumacea,
Branchiopoda,
Copepoda, Cirripeda
Sediment
Cores
9:18 AM – 2.5
ft. water depth
Length
Rare
Common
Abundant
14 cm
H2S
Smell
No
Wood
mud
9:37 AM - 2.5
ft. water depth
14 cm
No
Mussel shell
9:58 AM - 2.5
ft. water depth
14 cm –
top pebbles
and gravel,
bottom
clay
17 cm –
gravel top
layer, mud
below
Yes
Oyster shells
Clay, gravel,
pebbles,
living
vegetation
Pebbles,
wood, oyster
shell,
macroinvert
Sand, gravel,
leaves, wood
Clay, sand,
gravel, wood,
macroinvert,
living
vegetation
Clay, sand,
wood
Mud, pebbles
Clay, mud,
Sand, gravel,
pebbles, leaves,
living
vegetation –
more gravel
10:30 AM – 4
ft. deep
11:00 AM – 3
ft. deep
11:11 AM
Amphipods Amphiropora
128 total catch
1:20 PM
Diversity 2
39 total
Diversity 8
Count 290
Amphipods –
Melita Nitida
Smith
No
10 cm – 1
Yes
cm top of
gravel,
lower layer
mud
14 cm with Yes
4 cm gravel
top
Gravel – top
only
*NOTE
worm in core
Fresh water
mussel
Amphipods Leptocheirus
plumulosus
shoemaker
Phytoplankton Several types
Clay, mud,
gravel
Clay, mud,
pebbles, living
vegetation
Mud, leaves,
living
vegetation
than sand, large
pebbles
11:30 AM – 5
ft. deep
12:25 PM
12:45 PM
1:15 PM
18 cm – 8
cm gravel
on top and
10 cm mud
below
17 cm – 11
cm gravel
on top and
6 cm mud
Yes
12 cm – 9
cm gravel
on top and
3 cm mud
below
8.5 cm – no Yes
top
Leaves,
wood, shells,
macroinvt,
brick, coal,
slag
Leaves
Clay, mud,
gravel, living
vegetation
Clay, mud,
Sand, gravel,
pebbles, living
vegetation
Coal,
Gravel,
pebbles
Wood, shells,
macros
Leaves
Clay, mud,
leaves, living
vegetation
Clay, mud,
sand, gravel,
pebbles, living
vegetation
1:28 PM
14 cm – 8
cm sand on
top, 6 cm
mud below
Yes
OTHER
1:05 PM
1:40 PM
9:50 AM
1:04 PM
1:35 PM
Cormorants & seagulls visible
Monarch Butterfly migrating
Yacht white color
Southbound
Barge
Northbound
Barge - blue
Northbound
SHIPPING
Full