Cruise inventory

FRV Alba Na Mara 0910A

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Alba Na Mara (74NM)
Cruise identifier0910A
Cruise period2010-07-17 — 2010-07-26
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
PurposeFisheries
ObjectivesObjectives

1. To conduct plankton and hydrographic surveys in Shetland (focusing on SW area at first) to locate any areas where Alexandrium dinoflagellates are present.
2. To deploy autosampler mooring and nutrient analyser either where Alexandrium are found to be present by initial survey or in Busta Voe
3. To deploy and recover multiple (maximum 20) SPATT moorings adjacent to shellfish farms throughout the surveyed area.
4. Conduct repeated plankton and hydrographic sampling along a transect in St Magnus Bay and in voes to provide data on the progression of Alexandrium events (if present) and provide background data for models of Alexandrium occurrence in relation to hydrographic conditions and the effects of aquaculture on voe water quality.
5. To collect sediment samples for phytoplankton cyst identification throughout the survey area.
6. To collect sediment samples from Sullom Voe for analysis of TBT concentrations.
7. To continuously monitor T&S and chlorophyll a in surface waters and surface irradiance during the cruise.
8. To collect samples of dogwhelks from shoreline sites in the Scalloway area and receive samples from Bressay being collected by SEPA staff.

Narrative

After loading on 14 July, scientists boarded the vessel on 16 July and departed for Shetland at 0800 on 17 July, due to forecasted high wave heights to the south and west of Shetland on the evening of 16 July. Sea conditions to the SW of Shetland were expected to still be poor on 18 July, so sampling commenced in the NE of Shetland at Basta Voe with CTD profiles and plankton hauls at three stations and a single Day grab. Two SPATT moorings were also deployed in the vicinity of mussel farms in the Voe. This sampling regime was repeated in Mid Yell Voe (with only a single mooring deployment) before steaming to Collafirth in Yell Sound to anchor overnight. On 19 July a series of 11 Day grab samples of sediment for TBT analysis was completed in Sullom Voe and a single CTD cast was completed in the upper basin to calibrate the oxygen sensor (low DO values are anticipated in this basin). Alba then steamed for Ronas Voe where three hydrographic stations were sampled, including plankton tows and a SPATT mooring deployed by a mussel farm, mid-Voe. Notably low DO levels were recorded in the upper basin of the Voe.

After steaming to St Magnus Bay a transect of six hydro stations was commenced, with full depth phytoplankton samples being taken from the rosette bottles at discrete depths and phytoplankton and zooplankton tows conducted at all stations. Only four stations were completed of this transect before the end of the working day and Alba steamed into Busta Voe to anchor overnight. On 20 July the auto-sampler and nutrient analyser were deployed on a mooring in the middle of Busta Voe and hydro-stations/plankton sampling conducted in Busta Voe, Olna Firth and Aith Voe. Two SPATT moorings were deployed in Olna Firth and a single mooring deployed in Aith Voe. Alba departed the Swarbacks Minn area to make for Scalloway, arriving by 2000.

Daniel Stone (NAFC) boarded the vessel (with dogwhelk samples from Scalloway area) on the morning of 21 July and surveys of the Scalloway area Voes were conducted. Sandsound Voe, Vaila Sound and Gruting Voe. In each area a minimum of three hydro-stations were sampled by CTD and plankton net, a single grab sample was taken for cyst analysis and SPATT moorings deployed. In Gruting Voe, the Proteus workboat was launched to sample Browland Voe at the head of Gruting (shallow sill prevents access by Alba) since monitoring data suggested that Alexandrium were recently present in the area. Hydrographic data were collected by reversing bottle and plankton hauls completed. A SPATT mooring was deployed in the upper Voe.
Chief scientistMatt Gubbins (Marine Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Alba Na Mara 0910A cruise report 0910a.pdf — access key 'C' (0.34 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificShetland
Track chartsFRV Alba Na Mara 0910A cruise track — 0910atrk.pdf (00 MB) 
Data held at BODC 
Series/Profiles 
88  CTD/STD cast
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
11452512010-07-18 07:30 60° 37' 54" N  1° 1' 12" W  View metadata report for BODC series reference number 1145251
11452632010-07-18 08:15 60° 38' 25" N  1° 2' 22" W  View metadata report for BODC series reference number 1145263
11452752010-07-18 08:38 60° 39' 19" N  1° 2' 58" W  View metadata report for BODC series reference number 1145275
11452872010-07-18 11:05 60° 36' 18" N  1° 3' 46" W  View metadata report for BODC series reference number 1145287
11452992010-07-18 11:18 60° 36' 6" N  1° 3' 25" W  View metadata report for BODC series reference number 1145299
11453062010-07-18 11:30 60° 35' 55" N  1° 2' 7" W  View metadata report for BODC series reference number 1145306
11453182010-07-19 09:46 60° 24' 6" N  1° 21' 52" W  View metadata report for BODC series reference number 1145318
11453312010-07-19 12:48 60° 32' 43" N  1° 30' 16" W  View metadata report for BODC series reference number 1145331
11453432010-07-19 13:14 60° 31' 22" N  1° 28' 58" W  View metadata report for BODC series reference number 1145343
11453552010-07-19 13:34 60° 30' 26" N  1° 26' 24" W  View metadata report for BODC series reference number 1145355
11453672010-07-19 16:11 60° 29' 0" N  1° 53' 48" W  View metadata report for BODC series reference number 1145367
11453792010-07-19 17:06 60° 26' 1" N  1° 45' 27" W  View metadata report for BODC series reference number 1145379
11453802010-07-19 17:54 60° 23' 49" N  1° 37' 50" W  View metadata report for BODC series reference number 1145380
11453922010-07-19 18:29 60° 22' 31" N  1° 33' 13" W  View metadata report for BODC series reference number 1145392
11454112010-07-20 09:32 60° 23' 19" N  1° 21' 44" W  View metadata report for BODC series reference number 1145411
11454232010-07-20 09:47 60° 22' 48" N  1° 21' 58" W  View metadata report for BODC series reference number 1145423
11454352010-07-20 10:02 60° 22' 31" N  1° 22' 5" W  View metadata report for BODC series reference number 1145435
11454472010-07-20 11:09 60° 21' 53" N  1° 18' 8" W  View metadata report for BODC series reference number 1145447
11454592010-07-20 11:35 60° 21' 49" N  1° 19' 2" W  View metadata report for BODC series reference number 1145459
11454602010-07-20 11:52 60° 21' 46" N  1° 20' 10" W  View metadata report for BODC series reference number 1145460
11454722010-07-20 13:29 60° 18' 17" N  1° 22' 28" W  View metadata report for BODC series reference number 1145472
11454842010-07-20 14:00 60° 20' 13" N  1° 25' 58" W  View metadata report for BODC series reference number 1145484
11454962010-07-20 14:27 60° 20' 57" N  1° 28' 28" W  View metadata report for BODC series reference number 1145496
11455032010-07-21 08:27 60° 11' 41" N  1° 21' 6" W  View metadata report for BODC series reference number 1145503
11455152010-07-21 08:53 60° 12' 52" N  1° 21' 17" W  View metadata report for BODC series reference number 1145515
11455272010-07-21 09:18 60° 13' 44" N  1° 22' 18" W  View metadata report for BODC series reference number 1145527
11455392010-07-21 09:35 60° 14' 36" N  1° 22' 28" W  View metadata report for BODC series reference number 1145539
11455402010-07-21 12:04 60° 11' 7" N  1° 34' 7" W  View metadata report for BODC series reference number 1145540
11455522010-07-21 12:33 60° 12' 29" N  1° 34' 13" W  View metadata report for BODC series reference number 1145552
11455642010-07-21 12:49 60° 12' 52" N  1° 34' 55" W  View metadata report for BODC series reference number 1145564
11455762010-07-21 13:11 60° 13' 10" N  1° 33' 48" W  View metadata report for BODC series reference number 1145576
11455882010-07-21 14:31 60° 12' 35" N  1° 32' 4" W  View metadata report for BODC series reference number 1145588
11456072010-07-21 14:52 60° 13' 11" N  1° 30' 36" W  View metadata report for BODC series reference number 1145607
11456192010-07-22 09:40 60° 6' 46" N  1° 16' 43" W  View metadata report for BODC series reference number 1145619
11456202010-07-22 10:04 60° 5' 26" N  1° 17' 20" W  View metadata report for BODC series reference number 1145620
11456322010-07-22 10:27 60° 3' 45" N  1° 18' 34" W  View metadata report for BODC series reference number 1145632
11456442010-07-22 12:46 60° 13' 17" N  1° 18' 30" W  View metadata report for BODC series reference number 1145644
11456562010-07-22 13:01 60° 12' 54" N  1° 19' 12" W  View metadata report for BODC series reference number 1145656
11456682010-07-22 13:18 60° 12' 18" N  1° 20' 2" W  View metadata report for BODC series reference number 1145668
11456812010-07-22 14:16 60° 8' 53" N  1° 24' 29" W  View metadata report for BODC series reference number 1145681
11456932010-07-22 15:16 60° 11' 14" N  1° 33' 48" W  View metadata report for BODC series reference number 1145693
11457002010-07-22 16:19 60° 12' 45" N  1° 31' 34" W  View metadata report for BODC series reference number 1145700
11457122010-07-22 16:47 60° 12' 28" N  1° 34' 15" W  View metadata report for BODC series reference number 1145712
11457242010-07-23 09:41 60° 22' 2" N  1° 22' 8" W  View metadata report for BODC series reference number 1145724
11457362010-07-23 11:29 60° 17' 55" N  1° 22' 19" W  View metadata report for BODC series reference number 1145736
11457482010-07-23 11:47 60° 19' 5" N  1° 22' 52" W  View metadata report for BODC series reference number 1145748
11457612010-07-23 12:21 60° 22' 0" N  1° 22' 19" W  View metadata report for BODC series reference number 1145761
11457732010-07-23 12:36 60° 22' 18" N  1° 22' 16" W  View metadata report for BODC series reference number 1145773
11457852010-07-23 12:49 60° 22' 30" N  1° 22' 16" W  View metadata report for BODC series reference number 1145785
11457972010-07-23 13:03 60° 22' 38" N  1° 22' 5" W  View metadata report for BODC series reference number 1145797
11458042010-07-23 13:16 60° 22' 52" N  1° 21' 46" W  View metadata report for BODC series reference number 1145804
11458162010-07-23 13:29 60° 23' 7" N  1° 21' 38" W  View metadata report for BODC series reference number 1145816
11458282010-07-23 13:41 60° 23' 18" N  1° 21' 38" W  View metadata report for BODC series reference number 1145828
11458412010-07-23 14:23 60° 21' 55" N  1° 18' 8" W  View metadata report for BODC series reference number 1145841
11458532010-07-23 14:37 60° 21' 53" N  1° 18' 58" W  View metadata report for BODC series reference number 1145853
11458652010-07-23 14:53 60° 21' 46" N  1° 19' 52" W  View metadata report for BODC series reference number 1145865
11458772010-07-23 15:19 60° 22' 1" N  1° 22' 19" W  View metadata report for BODC series reference number 1145877
11458892010-07-23 15:34 60° 22' 49" N  1° 21' 52" W  View metadata report for BODC series reference number 1145889
11458902010-07-23 16:24 60° 21' 33" N  1° 30' 16" W  View metadata report for BODC series reference number 1145890
11459082010-07-24 07:28 60° 30' 26" N  1° 26' 34" W  View metadata report for BODC series reference number 1145908
11459212010-07-24 07:49 60° 31' 23" N  1° 28' 55" W  View metadata report for BODC series reference number 1145921
11459332010-07-24 08:21 60° 32' 39" N  1° 30' 25" W  View metadata report for BODC series reference number 1145933
11459452010-07-24 11:43 60° 38' 14" N  1° 1' 52" W  View metadata report for BODC series reference number 1145945
11459572010-07-24 11:57 60° 38' 50" N  1° 2' 46" W  View metadata report for BODC series reference number 1145957
11459692010-07-24 12:10 60° 39' 19" N  1° 2' 58" W  View metadata report for BODC series reference number 1145969
11459702010-07-24 12:58 60° 35' 59" N  1° 2' 10" W  View metadata report for BODC series reference number 1145970
11459822010-07-24 13:11 60° 36' 4" N  1° 3' 19" W  View metadata report for BODC series reference number 1145982
11459942010-07-24 13:21 60° 36' 19" N  1° 3' 43" W  View metadata report for BODC series reference number 1145994
11460082010-07-24 18:00 60° 29' 5" N  1° 54' 45" W  View metadata report for BODC series reference number 1146008
11460212010-07-24 18:59 60° 26' 22" N  1° 45' 46" W  View metadata report for BODC series reference number 1146021
11460332010-07-25 07:12 60° 23' 50" N  1° 37' 18" W  View metadata report for BODC series reference number 1146033
11460452010-07-25 07:47 60° 22' 31" N  1° 32' 59" W  View metadata report for BODC series reference number 1146045
11460572010-07-25 08:32 60° 21' 1" N  1° 28' 28" W  View metadata report for BODC series reference number 1146057
11460692010-07-25 09:01 60° 20' 17" N  1° 25' 41" W  View metadata report for BODC series reference number 1146069
11460702010-07-25 09:39 60° 22' 0" N  1° 22' 18" W  View metadata report for BODC series reference number 1146070
11460822010-07-25 09:51 60° 22' 15" N  1° 22' 19" W  View metadata report for BODC series reference number 1146082
11460942010-07-25 10:02 60° 22' 23" N  1° 22' 14" W  View metadata report for BODC series reference number 1146094
11461012010-07-25 10:16 60° 22' 38" N  1° 22' 0" W  View metadata report for BODC series reference number 1146101
11461132010-07-25 10:27 60° 22' 50" N  1° 21' 51" W  View metadata report for BODC series reference number 1146113
11461252010-07-25 11:12 60° 23' 5" N  1° 21' 37" W  View metadata report for BODC series reference number 1146125
11461372010-07-25 11:24 60° 23' 19" N  1° 21' 38" W  View metadata report for BODC series reference number 1146137
11461492010-07-25 12:48 60° 21' 54" N  1° 18' 10" W  View metadata report for BODC series reference number 1146149
11461502010-07-25 13:00 60° 21' 51" N  1° 18' 59" W  View metadata report for BODC series reference number 1146150
11461622010-07-25 13:12 60° 21' 46" N  1° 19' 55" W  View metadata report for BODC series reference number 1146162
11461742010-07-25 13:42 60° 19' 8" N  1° 22' 55" W  View metadata report for BODC series reference number 1146174
11461862010-07-25 13:59 60° 18' 13" N  1° 22' 21" W  View metadata report for BODC series reference number 1146186
11461982010-07-25 14:15 60° 17' 30" N  1° 22' 23" W  View metadata report for BODC series reference number 1146198
11462052010-07-25 18:26 60° 12' 42" N  1° 31' 55" W  View metadata report for BODC series reference number 1146205