Group 3 Log Book Falmouth Field Course 2011
Michelle Barnett
Christina Rowlins
Gareth Cheele
Ben Barton
Guy Hepden
Amelia Ballisat
Ed Gow
Rob Waters
Estuarine Practical
Bill Conway – 8:30 BST
28/07/2011
Going up the Fal Estuary
Weather
Sunny, warm, heavy breeze (large waves), 4/8 cloud cover, no ppt
Tides
Low water – 10:00 BST
High water – 16:00 BST
Neaps
Wind= SE
Roles
Michelle Barnett – Team leader
Chrissy Rawlins – Filtering and Trawling
Gareth Cheel – Filtering
Ben Barton – Filtering
Guy Hebden – Rosette
Amelia Ballisat – Scribe
Edward Gow – Rosette
Rob Waters – Rosette
The Plan
-Take ADCP across mouth along with CTDP measurements
-Take CTD measurements up estuary to give idea of water column structure
- Take water samples down the estuary and do samples at every other point + take trawls at top, bottom and middle of estuary and keep ADCP running down the estuary
- Taking ADCP at middle + head horizontally also
-1 depth profile at centre channel of estuary at top, middle + bottom
-ADCP across the mouth from time 09:31 BST
Start – 50 008 562N 005 01 068W
End – 50 08 593N 005 02 429W
-Depth: 7.9m
-Distance from shore: 150m
-End time 09:45 BST
Salinity calibration -= already calibrate otherwise taken bottles and measure salinity
CTD Test
Depth = 10.9m Time = 09:14 BST
First = 50 08 584N 005 01 210W
At 0m, 4m, 8m actual N/A
Always take DO first so don’t let air in
1st CTD = Mouth edge
Lat – 50 08 602N
Long – 005 02 405W
CTD down to 6.5m actual = 6.97m
Depth = 8.3m
Sample taken at 1m
Time =09:47 BST
ADCP transect 4 = TEST = NOT NEEDED
ADCP transect 5 started 09:54 BST = not transect (just continuing)
2nd CTD
Middle mouth = Conway_6_28_109_1 (file name)
Lat – 50 08 570N
Long – 00501.586W
Depth = 12.3m
Time= 09:58 BST
Salinity = 34.6
Temperature = 13.7
CTD taken at surface, 5m and 10m (actual = 1.29m, 4.79m, 9.94m)
Zooplankton draw = 210um net
Phytoplankton = 60 um net
Location: 50 08.456N, 005 01.465W
Time = 10:27 – 10:32 BST
Depth = 22.7m
08820 = start reading
(Air in net so was redone)
Secchi disk = 50 08.470N, 005 01.536W
Time = 10.19
Depth 18.9m
Results = 9m
*Blown horizontally due to strong currents so it is possibly largely inaccurate.
Phytoplankton Trawl
In bottle 97
Lat:50 08.518N
Long: 005 01.473W
Time 10:33-10:38 BST
Depth: 18.7m
Start reading 08938 and end = 09059
Zooplankton Trawl
Bottle 1
50 08.519N, 00501.471W
Time 10:47-10:52
Depth: 20.8m
Start reading 09069, end = ?
End: 50 08.625N, 005 01.515W
CTD 3 – Edge of estuary (file: Conway_6_28_111_60)
Time: 10.58
150m from shore
50 08.558N, 005 01.053W
Depth = 6.2m
CTD down to 4m
Surface sample taken at 1.32m
CTD 4 - Mid, central estuary (messack Point) (file:Conway_6_28_1135_0)
Time – 11:30 BST
Depth – 26.8m
50 10.843N, 005 01. 711W
CTD down to : 20m
Salinity: 34.5
Temp 13.9
*No bottles taken. More saline at bottom = gone from well mixed to salt wedge = slightly stratified
ADCP file names
1)March 17003r.000
2)March 17005r.000
CTD 5 (File:Conway_6_28_1222_5)
50 14.407N, 005 00.876W
Time = 12.17 BST
Temp = 16.2
Salinity = 31.6
Depth = 5.7
CTD to 3m
Bottle readings at 1,2,3m (actual = 3.09m, 1.95m, 1.14m)
*2m reading redone = bottle didn’t shut! Actual = 2.30m
Plankton net (same location as CTD 5)
50 14.408N, 005 00.875W
Time = 12:34-12:39 BST
Start number = 09676 End number = ?
Secchi Disk = Same location as CTD 5
3.5m Depth
Plankton net = REDONE
Did not work off back of pontoon so then it was towed behind Conway
Start position = 50 14.403N, 005 00.892W
Time: 12:38-12:43
Start number = 09699 End number 10324
Depth = 5.1m
SOG = 1.8 knots
Bottle number 95
Zooplankton net (bottle 2)
Start 50 14.385N, 005 01.900W
Depth = 5.2m
Time = 12:50 – 12:55
Start number = 10324 End number = 11193
End 50 14.257N, 005 01.041W
SOG =2.3 knots
CTD 6 (File: Conway_6_28_1317_23)
50 13.698N, 005 00.952W
Time: 13:05
Depth – 10.7m
Readings at 1m, 4m, 8m
Actual readings: 8.18m, 3.95m, 1.00m
Temperatue = 15.4
Salinity = 32.6
*CTD depth profile redone = computer did not save the data
ADCP Transect (Transect 6 across where 2 rivers meet ) (File: March17006r.000)
Start 50 13.664N, 005 01.013W
Time = 13:21
Depth = 1.5m SOG = 1.9 knots
End 50 13.682N, 005 00.915W (25m from shores
Time = 13:23
ADCP transect 7 (File: march17007r.000) back across
Start 50 13.676N, 005 00.928W
Time = 13:23
Depth = 6.1m SOG = 3.4 knots
Salinity = 33.3
Temp = 14.8
End 50 13.524N, 005 00.842W (123m)
Time = 13:26
ADCP Continuous (transect 8)*not a transect? (File: March17008r.00)
Time = 13:27
Depth = 4.5
Salinity = 33.7
Temp = 14.5
CTD 7 – (File: Conway_6_28_1352_40)
50 12.569N, 005 01.670W
Time: 13:46
Depth = 5.4m
Salinity = 33.9m
Temperature = 14.7
Readings = 1m, 2m, 3m, 4m, 5m
Actual = 1.16m, 1.92m, 3.1m, 3.96m, 4.94m
Phytoplankton Net (same location as above)
Start number = 11199 End number = 11552
Depth =7-9m
Start 50 12.569N, 005 01.670W
Time 14:09 – 14:13
SOG = 1.6knots
End 50 12.461N, 005 01.670W
CTD 8 (File:Conway_6_28_1438_47)
50 11.272N, 005 02.380W
Time = 14:52
Depth = 23.4m
Salinity = 34.5
Temp = 14.1
Readings = 1, 5, 10, 15, 20 (m)
Actual = 1.17m, 4.6m, 9.88m, 14.95m, 20.45m
*The CTD not directly down = angled = but doesn’t affect results. Third bottle didn’t work, BUT not redone – no results.
ADCP Transect 9 (File: March17010r.000) (Across Messick Point)
Start point = 82m
Start 50 10.943N, 005 01.595W
Time = 14:47
Salinity = 34.6
Temperature = 13.9
End 50 10.562N, 005 01.461 W
Time = 15:01
SOG = 3.3 knots, 120m from shore
CTD 9 (File:Conway_6_28_156_25)
50 10.561W, 005 02.617W
Time= 15:04
Depth = 4m
Salinity = 34.3
Temp = 14.6
3m but actual was 3.15m
sample at 1m
CTD 10 (File:Conway_6_28_1515_4)
50 10.933N, 005 01.600W
Time = 15:13
Depth – 5.5m
Salinity – 34.6
Temp – 13.9
CTD to 4m but actual = 4.06m
Sample at surface = 0.141 (didn’t close = redo)
Time 15:15
50 10.935N, 005 01.596W
CTD 11 (File:Conway_6_28_1527_57
Depth = 29.6
50 10.859N, 005 01.755W
Time = 15.20
Salinity = 34.7
Temp = 13.6
CTD to 25m
Readings: surface, 5, 10, 15, 25. Actual: 1.36m, 4.28m, 9.51m, 15.08m, 25.11m
*Been blown off to 1 side!
Phytoplankton trawl = bottle 96
Start number = 11556
End number = 11604
Start lat: 5010.814N
Start long: 005 01.672W
Time: 1528 = 5 mins = 1533 end time
Salinity = 34.6
Depth = 28.7
Temp = 13.5
End lat = 50 10.926
End long = 005 01.839
Secchi disk = 9m
Time: 1540
Lat = 50 10.894N
Long 005 01.827W
Depth = 20.8
Salinity = 34.7
Temperature = 13.7
Zooplankton = bottle 3
Start number= 11604
End value = 12073
Start lat = 50 10.863N
Start long = 005 01.816W
Time = 1541
Temp = 13.7
Depth = 25.9
Salinity = 34.7
End lat = 50 10.955
End long = 005 1.901W
Time = 1546
CTD 12 Conway_6_28_162_22
Lat= 50 09.928
Long = 005 01.789
Time = 1557
Depth = 5.7
Temperature = 14.0
Salinity = 34.6
CTD down to 4m actual 4.28
ReadingsActual
1m1.04m
3m3.09
CTD (File:Conway 6_28_162826) - note: CTD broke all bottles were closed when they shouldn’t have been
Lat = 50 09.633
Long = 005 02.378
Time = 16
Depth = 14.9m
Salinity = 34.7
Temperature = 13.9
CTD down to 16m but actual = 15.97
ReadingsActual
6/5/10/15m14.7/10.05/4.84
Plankton trawl – bottle 90
Start latitude = 50 09.648
Start longitude = 005 02.337W
Start number = 12075
Time = 1611
Salinity = 34.8
Temperature = 13.9
Depth = 24.8
SOG? = 1.5
Redone as net got twisted
Start = 12102
Time:1612
End latitude = 50 09.582
End longitude = 005 02.546
Time: 1617
End number = 12293
Redo CTD Conway( File:6_28_1651_23)
Latitude = 50 09.608N
Longitude = 005 02.340W
Time = 1643
Depth = 16m
Salinity = 34.6
Temperature = 14
CTD lowered to 15m however actual = 15.2
10m = 9.71m
5m=4.95m
Surface = 1.13m
*CTD still broken – unsure of sample depths*
Phytoplankton trawl = bottle 96
Start number = 11556
End number = 11604
Start lat: 5010.814N
Start long: 005 01.672W
Time: 1528 = 5 mins = 1533 end time
Salinity = 34.6
Depth = 28.7
Temp = 13.5
End lat = 50 10.926
End long = 005 01.839
Secchi disk = 9m
Time: 1540
Lat = 50 10.894N
Long 005 01.827W
Depth = 20.8
Salinity = 34.7
Temperature = 13.7
Zooplankton = bottle 3
Start number= 11604
End value = 12073
Start lat = 50 10.863N
Start long = 005 01.816W
Time = 1541
Temp = 13.7
Depth = 25.9
Salinity = 34.7
End lat = 50 10.955
End long = 005 1.901W
Time = 1546
CTD 12 (File:Conway 6_28_162_22)
Lat= 50 09.928
Long = 005 01.789
Time = 1557
Depth = 5.7
Temperature = 14.0
Salinity = 34.6
CTD down to 4m actual 4.28
ReadingsActual
1m1.04m
3m3.09
CTD 13 (File:Conway 6_28_162826) - note: CTD broke all bottles were closed when they shouldn’t have been
Lat = 50 09.633
Long = 005 02.378
Time = 16
Depth = 14.9m
Salinity = 34.7
Temperature = 13.9
CTD down to 16m but actual = 15.97
ReadingsActual
6/5/10/15m14.7/10.05/4.84
Plankton trawl – bottle 90
Start latitude = 50 09.648
Start longitude = 005 02.337W
Start number = 12075
Time = 1611
Salinity = 34.8
Temperature = 13.9
Depth = 24.8
SOG? = 1.5
Redone as net got twisted
Start = 12102
Time:1612
End latitude = 50 09.582
End longitude = 005 02.546
Time: 1617
End number = 12293
Redo CTD (File:Conway_6_28_1651_23)
Latitude = 50 09.608N
Longitude = 005 02.340W
Time = 1643
Depth = 16m
Salinity = 34.6
Temperature = 14
CTD lowered to 15m however actual = 15.2
10m = 9.71m
5m=4.95m
Surface = 1.13m
*CTD still broken – unsure of sample depths*
Station / Lat / Long / Depth / DO / P / SI / Ch1 / Ch21 / 50 08.602 / 005 02.405 / 1 / 66 / 11 / 194 / 206
2 / 50 08.570 / 005 01.586 / surface / 53 / 65 / 12 / 205 / 193
5 / 1 / 63 / 7 / 196 / 208
10 / 21 / 64 / 22 / 195 / 207
3 / 50 08.558 / 005 01.053 / 67 / 10 / 209 / 210
5 / 50 14.407 / 005 00.876 / 1 / 12 / 54 / 20 / 211 / 199
2 / 31 / 53 / 15 / 212 / 200
3 / 23 / 61 / 13 / 198 / 197
6 / 50 13.698 / 005 00.952 / 1 / 33 / 52 / 6 / 201 / 213
4 / 62 / 21 / 202 / 214
8 / 56 / 16 / 203 / 215
7 / 50 12.569 / 005 01.670 / 1 / 13 / 50 / 19 / 204 / 189
2 / 16 / 28 / 216 / 117
3 / 11 / 49 / 3 / 190 / 191
4 / 57 / 5 / 179 / 178
5 / 32 / 59 / 26 / 192 / 180
8 / 50 11.272 / 005 022.380 / 1 / 51 / 58 / 25 / 175 / 176 (dropped on floor)
5 / 55 / 30 / 152 / 164
10 / did / not / fire
15 / 45 / 27 / 174 / 163
20 / 44 / 14 / 151 / 183
9 / 50 10.561 / 005 02.617 / 1 / 42 / 47 / 18 / 166 / 165
10 / 50 10.933 / 005 01.600 / 1 / didn’t fire
11 / 50 10.859 / 005 01.755 / 1 / 43 / 51 / 29 / 161 / 149
5 / 22 / 41 / 17 / 160 / 147
10 / 41 / 35 / 9 / 159 / 158
15 / 42 / 32 / 157 / 145
25 / 2 / 36 / 23 / 148 / 146
12 / 50 09.928 / 005 01.789 / 1 / no bottles / 38 / 33 / 173 / 155
3 / 37 / 2 / 156 / 185
13 / 50 09.608 / 005 02.340 / 1 / 43 / 4 / 184 / 150
5 / 46 / 1 / 162 / 186
10 / 39 / 24 / 169 / 172
15 / 40 / 8 / 171 / 170
Lab analysis 29/7/2011
Phosphate analysis
-Make standard solutions with three replicates at 8 concentrations including blanks
-Make reagent, make 100ml due to 78 samples
-Add 1ml of reagent to each sample and mix
-Leave for 1 hour
-Put in U1800 spectrometer
-Take 2 readings and average
-Record data on sheet
Zooplankton analysis
-Conventional methodology used to count zooplankton i.e. microscope and Bogarov chamber to analyse 500ml samples
-10ml500ml x50
-Water sample = Rx0.3x0
-Number m^3 = A/B
Chlorophyll analysis
The chlorophyll bottles were transferred asap to s freezer after collection aboard the Bill Conway on the 8th June; thus preserved the samples. The following morning the samples were ready to analyse as the action of freezing allowed the chlorophyll to be released from the filter into the acetone solution instead of having to centrifuge the sample. Conventional methodology was then used to calculate the concentration of the chlorophyll in each of the samples.
To calculate the chlorophyll concentration in the water bottles:
(6/50) x value given by the flurometer where 50 was the volume of the filtered solution in ml and 6 was the volume of acetone in ml.
NB: need to calibrate the fluorometer would normally use a known concentration of pure chlorphyll a, approximately 90% acetone.
Offshore Boat – The Callista:
Date: 01/07/2011
Time: 7:30GMT start, 3:36GMT finish (NB all BST times converted to GMT by subtracting an hour, and all equipment aboard The Callista worked on GMT).
Weather
Sunny, warm, calm, no precipitation and low to medium cloud cover.
Tides
Neaps, with LW at 10:26GMT, and HW at 16:13GMT.
Roles/Jobs:
Chrissy Rawlins – PSO
Michelle Barnett – Scribe and dry lab
Gareth Cheel – Equipment deployment
Ben Barton – Dry lab
Guy Hebden – Wet lab
Amelia Ballisat – Equipment deployment
Edward Gow – Wet lab
Rob Waters – Equipment deployment and shouter.
Plan:
-Using Niskin bottles on a rosette water samples were collected so DO, Silicate, Phosphate, and Phytoplankton (Lugols) could be measured.
-Using a closing zooplankton net zooplankton samples were collected
-Using an ADCP water flow would be measured.
-Using a CTD with fluorometer and transmissometer, temperature, depth, salinity, turbidity, and fluorescence by phytoplankton would be measured.
-Using a Secchi disk turbidity would be measured.
On the basis that a single profile using all of the above techniques to sample the water column, would take ~45mins to complete, that Callista would travel ~10knots, and the first station at Black Rock would take ~1hr 30mins to complete including travel from the Dock, timings were estimated.
NB Time = Distance/Speed, where speed is in knots/nautical miles (nm) per hour, and distance is in nm (1 nm = 1 degree of latitude).
Depart → 7:30 GMT
Arrive at Black Rock (station 1) → 7:45 GMT
Depart from Black Rock → 9:00 GMT
Arrive East Cardinal (station 2) → 9:30 GMT
Leave East Cardinal → 10:15 GMT
Arrive at station 3 (around 49o57N, 004o55W) → 10:45 GMT
Leave station 3 → 11:30 GMT
Arrive at station 4 (around 50o57N, 005o05W) → 12:00 GMT
Leave station 4 → 12:45 GMT
Arrive at station 5 (around 50o55N, 005o12W – off Lizard Point) → 13:15 GMT
Leave station 5 → 14:00 GMT
Back to Falmouth Dock → 15:30 GMT
The Aim of the survey was to find fronts offshore of Falmouth, therefore as a general rule of thumb would have to travel ~4knots, and ultimately to answer the following question:
' How do vertical mixing processes in the waters off Falmouth affect, directly and indirectly, the structure and functional properties of plankton communities?'
Station 1: Black Rock
Time: 7:47 GMT
Depth: 32.8m
Salinity: 35.2 PSU
Temperature: 13.9oC
Latitude: 50o08.677N
Longitude: 005o01.464W
CTD
Time: 8:02 GMT
Depth: 32.8m
Water Bottle Samples
Depth (m) / Niskin Bottle Number Fired / Actual Depth (m) / Salinity (PSU) / Temperature oCSurface / 8 / 1.53 / 35.19 / 13.80
15 / 6 / 14.70 / 35.20 / 13.07
30 / 2 / 32.70 / 35.24 / 13.60
Depth (+ Niskin bottle no.) / Bottle Numbers
Lugols / DO / P / Si / Chl 1 / Chl 2
1.53 (8) / 19 / 113 / 48 / 3 / 100 / 88
14.7 (6) / 8 / 95 / 20 / 2 / 77 / 136
32.8 (2) / 3 / 85 / 63 / 1 / 124 / 112
ADCP 1
Time: 7:47GMT start, 8:39GMT finish
Latitude: 50o08.677N to 50o08.428N
Longitude: 005o01.464W to 005o01.441W
NB: The ADCP was kept running while sampling station 1, but latitude and longitude changed over the sampling time of station 1 due to the boat drifting – this applied to all other stations.
File Name: Data_000r.000
Secchi Disk
Time: 8:30GMT
Depth: 9m
Latitude: 50o08.621N
Longitude: 005o01.478W
Zooplankton – Bottle 1
Time: 8:33GMT
Depth: 20m to the surface
Latitude: 50o08.621N
Longitude: 005o01.478W
NB: Mesh used was 200µm in size, and had an opening diameter of 60cm
NB2: The net was hosed down after brought onboard to displace plankton from the net into the bottle.
ADCP 2 Transect 1
Time: 8:39GMT start, 9:19GMT finish
Latitude: 50o08.428N to 50o01.965N
Longitude: 005o01.441W to 005o00.775W
File Name: Data_001r.000
Station 2
Time: 9:19 GMT
Depth: 66.5 m
Salinity: 35.3 PSU
Temperature: 15.0oC
Latitude: 50o01.965N
Longitude: 005o00.775W
CTD
Time: 9:23 GMT
Depth: 63.0m
Water Bottle Samples
Depth (m) / Niskin Bottle Number Fired / Actual Depth (m) / Salinity (PSU) / Temperature oCSurface / 8 / 1.42 / 35.20 / 14.70
20 / 4 / 19.67 / 35.30 / 13.20
35 / 2 / 34.36 / 35.20 / 12.03
Depth (+ Niskin bottle no.) / Bottle Numbers
Lugols / DO / P / Si / Chl 1 / Chl 2
1.42 (8) / 95 / 76 / 1 / 6 / 89 / 90
19.67 (4) / 11 / 87 / 11 / 5 / 137 / 101
34.36 (2) / 28 / 112 / 40 / 4 / 125 / 130
ADCP 3
Time: 8:39GMT start, 9:56GMT finish
Latitude: 50o01.965N
Longitude: 005o00.775W
File Name: Data_002r.000
Secchi Disk
Time: 9:45GMT
Depth: 11m
Latitude: 50o01.641N
Longitude: 005o00.893W
Zooplankton – Bottle 2
Time: 9:47GMT
Depth: 10m to the surface
Latitude: 50o01.594N
Longitude: 005o00.964W
Zooplankton – Bottle 3
Time: 9:51GMT
Depth: 30m to 10m
Latitude: 50o01.594N
Longitude: 005o00.964W
ADCP 4 Transect 2
Time: 9:59GMT start, 10:16GMT finish
Latitude: 50o01.010N to 49o58.509N
Longitude: 005o01.383W to 005o01.135W
File Name: Data_003r.000
In Between Station 2 and 3 (CTD ONLY)
NB: on CTD data file each of the ‘inbetween’ stations were classed as separate stations i.e. this station was classed as station 3.
Time: 10:16 GMT
Depth: 74.0 m
Salinity: 35.4 PSU
Temperature: 15.3oC
Latitude: 49o58.509N
Longitude: 005o01.135W
CTD
Time: 10:19 GMT
Depth: 70.0m
ADCP 5
Time: 10:16GMT start, 10:32GMT finish
Latitude: 49o58.509N to 49o58.143N
Longitude: 005o01.135W to 005o01.550W
File Name: Data_004r.000
Secchi Disk
Time: 10:28GMT
Depth: 14m
Latitude: 49o58.207N
Longitude: 005o01.540W
ADCP 6, Transect 3
Time: 10:17GMT start, 10:52GMT finish
Latitude: 49o58.509N to 49o55.268N
Longitude: 005o01.135W to 005o01.115W
File Name: Data_005r.000
Station 3
Time: 10:52 GMT
Depth: 79.4 m
Salinity: 35.4 PSU
Temperature: 15.9oC
Latitude: 49o55.268N
Longitude: 005o01.115W
CTD
Time: 11:02 GMT
Depth: 75.0m
Latitude: 49o54.861N
Longitude: 005o01.326W
NB: Latitude and Longitude taken again for deployment of CTD as Callista moved after primary stop for station 3.
Water Bottle Samples
Depth (m) / Niskin Bottle Number Fired / Actual Depth (m) / Salinity (PSU) / Temperature oCSurface / 6 / 1.68 / 35.24 / 14.90
25 / 4 / 24.30 / 35.30 / 12.29
35 / 2 / 34.20 / 35.30 / 11.80
Depth (+ Niskin bottle no.) / Bottle Numbers
Lugols / DO / P / Si / Chl 1 / Chl 2
1.68 (6) / 5 / 48 / 29 / 9 / 78 / 166
24.30 (4) / 1 / 97 / 45 / 8 / 126 / 140
34.20 (2) / 4 / 86 / 31 / 7 / 114 / 102
ADCP 7
Time: 10:53GMT start, 11:35GMT finish
Latitude: 49o55.268N
Longitude: 005o01.115W
File Name: Data_006r.000
Secchi Disk
Time: 11:17GMT
Depth: 12m
Latitude: 49o54.647N
Longitude: 005o01.774W
Zooplankton – Bottle 4 Dude
Time: 11:24GMT
Depth: 20m to the surface
Latitude: 49o54.532N
Longitude: 005o02.015W
Zooplankton – Bottle 5 Dudettte
Time:11:29GMT
Depth: 31m to 20m
Latitude: 49o54.532N
Longitude: 005o02.015W
ADCP transect 4 (8)
Time: 11:35GMT start, 12:01GMT finish
Latitude: 49o54.451N to 49o56.301N
Longitude: 005o02.415W to 005o06.200W
File Name: Data_007r.000
Station 4
Time: 12:02 GMT
Depth: 74.6 m
Salinity: 35.4 PSU
Temperature: 15.6oC
Latitude: 49o56.265N
Longitude: 005o06.284W
CTD
Time: 12:05 GMT
Depth: 70.7m
Water Bottle Samples
Depth (m) / Niskin Bottle Number Fired / Actual Depth (m) / Salinity (PSU) / Temperature oCSurface / 8 / 1.50 / 35.40 / 14.70
10 / 6 / 9.40 / 35.20 / 14.40
22 / 4 / 21.10 / 35.30 / 12.08
40 / 2 / 39.10 / 35.30 / 11.60
Depth (+ Niskin bottle no.) / Bottle Numbers
Lugols / DO / P / Si / Chl 1 / Chl 2
1.50 (8) / 6 / 108 / 6 / 13 / 167 / 128
9.40 (6) / 22 / 98 / 54 / 12 / 162 / 103
21.10 (4) / 23 / 66 / 67 / 11 / 115 / 175
39.10 (2) / 20 / 101 / 56 / 10 / 214 / 178
ADCP (9)
Time: 12:02GMT start, 12:27GMT finish
Latitude: 49o56.301N
Longitude: 005o06.200W
File Name: Data_008r.000
Secchi Disk
Time: 12:18GMT
Depth: 10m
Latitude: 49o56.105N
Longitude: 005o06.776W
Zooplankton – Bottle 6 Bob
Time: 12:25GMT
Depth: 25m to 10m
Latitude: 49o56.062N
Longitude: 005o06.982W
ADCP transect 5 (10)
Time: 12:02GMT start, 12:56GMT finish
Latitude: 49o56.301N to 49o57.149N
Longitude: 005o06.200W to 005o10.396W
File Name: Data_009r.000
In Between Station 4 and 5 (CTD ONLY)
Time: 12:56 GMT
Depth: 41.6 m
Salinity: 35.4 PSU
Temperature: 14.6oC
Latitude: 49o57.145N
Longitude: 005o10.400W
CTD
Time: 12:59 GMT
Depth: 32.0m
ADCP 11
Time: 12:56GMT start, 13:17GMT finish
Latitude: 49o57.149N to 49o57.708N
Longitude: 005o10.396W to 005o10.295W
File Name: Data_010r.000
FRONT: location - 49o57.123N, 005o10.337W?
In Between Station 4 and 5 (CTD ONLY)
Time: 13:14 GMT
Depth: 16.2 m
Salinity: 35.4 PSU
Temperature: 14.3oC
Latitude: 49o57.679N
Longitude: 005o10.325W
CTD 2
Time: 13:15 GMT
Depth: 15.2m
ADCP 12
Time: 11:17GMT start, 14:09GMT finish
Latitude: 49o57.679N to 49o59.845N
Longitude: 005o10.325W to 005o07.421W
File Name: Data_011r.000
Station 5
Time: 13:47 GMT
Depth: 30.2 m
Salinity: 35.4 PSU
Temperature: 14.4oC
Latitude: 49o59.945N
Longitude: 005o07.937W
CTD
Time: 13:50 GMT
Depth: 26.3m
Water Bottle Samples
Depth (m) / Niskin Bottle Number Fired / Actual Depth (m) / Salinity (PSU) / Temperature oCSurface / 8 / 1.30 / 35.20 / 13.80
5 / 4 / 4.50 / 35.20 / 13.16
15 / 2 / 14.60 / 35.30 / 12.97
NB: Niskin bottle 2 failed, but a sample for this depth was NOT repeated, and water bottle 6 was first fired for the surface but the CTD was out of the water at that time so the CTD was lowered and bottle 8 was fired instead.
Depth (+ Niskin bottle no.) / Bottle NumbersLugols / DO / P / Si / Chl 1 / Chl 2
1.30 (8) / 97 / 47 / 10 / 15 / 161 / 151
4.50 (4) / 12 / 120 / 9 / 14 / 199 / 209
14.60 (2) / - / - / - / - / - / -
Secchi Disk
Time: 14:06GMT
Depth: 8.5m
Latitude: 49o59.845N
Longitude: 005o07.421W
Zooplankton – Bottle 7 Roger
Time: 14:07GMT
Depth: 20m to 10m
Latitude: 49o59.845N
Longitude: 005o07.421W
ADCP transect (13)
Time: 14:09GMT start, 15:35GMT finish
Latitude: 49o59.845N to 50o09.503N
Longitude: 005o07.421W to 005o03.977W
File Name: Data_012r.000
FRONT: location - 50o01.394N, 005o02.815W?
Geophysics Boat
Date : 5/7/2011
Time: 06.45 GMT
Weather : light rain, SSW winds, cloudy
Tides: Springs, HW: 0729 GMT, LW:1520 GMT
Tech specs
-FD Marine Ltd – Multipurpose vessel Grey Bear (shallow draft workboat)
-Dimensions: 15mx6.1mx1.1m
-10 passengers and 2 crew
-Load: 20 tonnes cargo and equipment
-Speed: 7.5 knots
-2 cranes (star and stern)
-2 winches (3x5 tonne, stern and deck)
-Bow roller
-Bow ramp
Used for: anchor handling, cargo transportation, civil engineers, diving support, moorings, salvage, cable laying/recovery, pollution control, ROV operations, surveying and sampling
Tow Fish measurements
Rope behind boat – 2.4m
Boat-sensor distance – 4.63m
Transect 1
Start / time(GMT) / easting / northing / lat (N) / long (W)9.44.45 / 183690 / 33310 / 50 09 60 / 005 01 81
9.45.45 / 183720 / 33446 / 50 09 695 / 005 01 769
9.47.00 / 183774 / 33640 / 50 09 781 / 005 01 738
9.48.00 / 183797 / 33711 / 50 09 821 / 005 01 724
9.49.00 / 183818 / 33813 / 50 09 877 / 005 01 707
9.50.00 / 183853 / 33934 / 50 09 942 / 005 01 685
9.51.00 / 183890 / 34040 / 50 10 006 / 005 01 656
9.52.00 / 183922 / 34151 / 50 10 083 / 005 01 625
9.53.00 / 183944 / 34286 / 50 10 137 / 005 01 615
End / 9.54.00 / 183967 / 34358 / 50 10 214 / 005 01 594
Transect 2
time(GMT) / easting / northing / lat (N) / long (W)Start / 9.57.22 / 183934 / 34411 / 50 10 210 / 005 031 6
9.58.00 / 183886 / 34826 / 50 10 159 / 005 01 668
9.59.00 / 183852 / 34205 / 50 10 112 / 005 01 857
10.00.00 / 183833 / 34090 / 50 10 052 / 005 01 696
10.01.00 / 183792 / 33961 / 50 09 787 / 005 01 724
10.02.00 / 183763 / 33860 / 50 09 923 / 005 01 748
10.03.00 / 183744 / 33750 / 50 09 845 / 005 01 767
10.04.00 / 183111 / 33634 / 50 09 781 / 005 01 781
10.05.00 / 183683 / 33514 / 50 09 715 / 005 01 810
End / 10.06.00 / 183634 / 33308 / 50 09 604 / 005 01 842
Transect 3
time(GMT) / easting / northing / lat (N) / long (W)Start / 10.10.15 / 183578 / 33283 / 50 09 603 / 005 01 881
10.11.00 / 183594 / 33357 / 50 09 649 / 005 01 874
10.12.00 / 183625 / 33478 / 50 09 715 / 005 01 848
10.13.00 / 183666 / 33584 / 50 09 772 / 005 01 817
10.14.00 / 183709 / 33704 / 50 09 836 / 005 01 789
10.15.00 / 183730 / 33825 / 50 09 900 / 005 01 777
10.16.00 / 183748 / 33947 / 50 09 967 / 005 01 764
10.17.00 / 183790 / 34066 / 50 09 031 / 005 01 733
10.18.00 / 183824 / 34187 / 50 09 100 / 005 01 710
End / 10.19.00 / 183839 / 34301 / 50 09 160 / 005 01 701
10.19.44 / 183857 / 34422 / 50 09 222 / 005 01 689
Transect 4
time(GMT) / easting / northing / lat (N) / long (W)Start / 10.23.26 / 183833 / 34444 / 50.10.223 / 005.01.717
10.25.00 / 183771 / 34281 / 50.10.130 / 005.01.760
10.26.00 / 183747 / 34160 / 50.10.067 / 005.01.777
10.27.00 / 183714 / 34044 / 50.10.002 / 005.01.801
10.28.00 / 183679 / 33910 / 50.09.922 / 005.01.825
10.29.00 / 183662 / 33800 / 50.09.873 / 005.01.835
10.30.00 / 183633 / 33682 / 50.09.802 / 005.01.855
10.31.00 / 183612 / 33555 / 50.09.738 / 005.01.869
10.32.00 / 183576 / 33445 / 50.09.679 / 005.01.898
End / 10.33.00 / 183535 / 33352 / 50.09.929 / 005.01.929
Transect 5
time(GMT) / easting / northing / lat (N) / long (W)Start / 10.43.25 / 183451 / 33341 / 50.09.19 / 005.01.941
10.45.00 / 183547 / 33502 / 50.09.720 / 005.02.919
10.46.00 / 183565 / 33611 / 50.09.781 / 005.01.902
10.47.00 / 183602 / 33728 / 50.09.496 / 005.01.879
10.48.00 / 183622 / 33847 / 50.09.097 / 005.01.867
10.49.00 / 183659 / 33964 / 50.09.981 / 005.01.371
10.50.00 / 183686 / 34085 / 50.10.042 / 005.01.822
10.51.00 / 183708 / 34206 / 50.10.108 / 005.01.807
10.52.00 / 183745 / 34328 / 50.10.172 / 005.01.780
End / 10.53.00 / 183783 / 34454 / 50.10.244 / 005.01.751
video transect 1
lat (N) / long (W) / start (GMT / end (GMT)
50.09.810 / 005.02.975 / 11.38.14 / 11.53.48
video Transect 2
lat (N) / long (W) / start (GMT / end (GMT)
50.09.839 / 005.01.805 / 12.15.56 / 12.21.23
video transect 3
lat (N) / long (W) / start (GMT / end (GMT)
50.09.831 / 005.01.730 / 12.31.35 / 12.46.17
Grab 1
Cancer pagurus – edible crab x2
Golfingia (vulgaris) x3
Maerl
A brittlestar- Ophiuraophiura
Amphipod (sand hopper)
Carcinusmaenas – common shore crab
Grab 2
Common shore crab - Carcinusmaenas x5
Phaeophyceae (brown algae)
Cancer pagurus – edible crab
Rhodophyceae – red algae
Maerl
Amphipod (sand hopper)
Capitellacapitata
Crangoncrangon – common shrimp
Grab 3
Maerl
Cancer pagurus – edible crab x2
Pilumnushirtellus – hairy crab
InfraorderAnomura – galathea
Galatheadiespersa x3
Carcinusmaenas - Common shore crab
Pisidialongicornis – long clawed porcelain crab x2
Crangoncrangon – common shrimp x2
Hermione hystrix
Poliniciespolianus - Gastropod
Sponges
Hydrobiaulvae