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BODC Cruise Metadata Report for FRV Alba Na Mara (74NM) cruise 0909A

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name FRV Alba Na Mara (74NM) cruise 0909A
Short name 0909A
Objectives and Narrative Objectives

1. To carry out an acoustic survey to determine an abundance estimate for sandeels in the in the water column. Three frequencies, 38, 120, and 200 kH were used to aid species recognition. This acoustic survey also produced herring and sprat abundance estimates. Concentrations of fish were sampled using the pelagic trawl to determine species composition and length frequency distributions. Sub samples of the fish caught were weighed and had otoliths removed to establish length-weight relationships and age composition.

2. To carry out a demersal trawl survey to determine an abundance index for sandeels in the seabed sediment. This demersal trawl survey also produced abundance indices for herring and sprats, the two other main prey species, as well as abundance indices for the major piscivorous fish predators in the area, whiting, haddock and cod. At each trawl station, the length frequency of all fish species caught was determined. Sub-samples of sandeels, herring, sprats, cod, haddock, and whiting were weighed to determine length-weight relationships. Otoliths were removed from sandeels and clupeids to determine age composition. Sub-samples of the gadoid predators were retained and frozen for subsequent dietary and age composition analysis if required.

3. Simultaneously with the demersal trawl survey, to carry out hydrographic survey using a Seabird 19 CTD sampler fitted with a fluorometer to determine spatial variation in water temperature, salinity and fluoroescence across the study area.

4. Simultaneously with the acoustic survey, to survey seabirds at sea within the study area using standard census methods. Protection of local breeding seabirds was one of the principal motives underpinning the sandeel fishery closure.

5. Whilst carrying out seabird at sea survey, to record all sightings of marine mammals (number of animals, species if possible, and their location).

Narrative

Scientific equipment was lo
Ship FRV Alba Na Mara
Departure Port Fraserburgh, United Kingdom
Departure Date 2009-06-04
Arrival Port Fraserburgh, United Kingdom
Arrival Date 2009-06-17
Principal Scientist(s) Simon Greenstreet (Marine Scotland Aberdeen Marine Laboratory)
Responsible Organisation Marine Scotland Aberdeen Marine Laboratory
Associated Project(s) AE11D
IHB Sea Areas Visited North Sea
Marsden Squares Visited 181;3
Work Area Description Firth of Forth
Unable to lookup cruise bounds at this time
Work Area Bounding Polygon
Southern Limit unknown
Northern Limit unknown
Western Limit unknown
Eastern Limit unknown

Cruise Inventory Datasets

No information on datasets is currently available for this cruise

Cruise Inventory Mooring/Buoy Operations

No information on datasets is currently available

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
41 CTD/STD cast Chlorophyll pigment concentrations in water bodies
Concentration of suspended particulate material in the water column
Electrical conductivity of the water column
Reference numbers
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

Full List

BODC Reference Instrument Description Date/Time Location  
1024872 CTD/STD cast 2009-06-05 05:08Z 56° 27' N, 1° 48' W Click for more
1024884 CTD/STD cast 2009-06-05 06:04Z 56° 22' N, 1° 40' W Click for more
1024896 CTD/STD cast 2009-06-05 07:11Z 56° 18' N, 1° 31' W Click for more
1024903 CTD/STD cast 2009-06-05 08:21Z 56° 17' N, 1° 40' W Click for more
1024915 CTD/STD cast 2009-06-05 10:06Z 56° 17' N, 1° 49' W Click for more
1024927 CTD/STD cast 2009-06-06 07:31Z 56° 27' N, 2° 7' W Click for more
1024939 CTD/STD cast 2009-06-06 08:22Z 56° 27' N, 2° 0' W Click for more
1024940 CTD/STD cast 2009-06-06 09:41Z 56° 22' N, 1° 57' W Click for more
1024952 CTD/STD cast 2009-06-06 11:08Z 56° 22' N, 1° 50' W Click for more
1024964 CTD/STD cast 2009-06-06 13:24Z 56° 17' N, 2° 0' W Click for more
1024976 CTD/STD cast 2009-06-06 14:09Z 56° 18' N, 2° 8' W Click for more
1024988 CTD/STD cast 2009-06-07 05:45Z 56° 7' N, 2° 30' W Click for more
1025003 CTD/STD cast 2009-06-07 06:31Z 56° 2' N, 2° 29' W Click for more
1025015 CTD/STD cast 2009-06-07 07:15Z 56° 2' N, 2° 22' W Click for more
1025027 CTD/STD cast 2009-06-07 09:03Z 56° 2' N, 2° 10' W Click for more
1025039 CTD/STD cast 2009-06-07 09:49Z 56° 2' N, 2° 3' W Click for more
1025040 CTD/STD cast 2009-06-07 12:46Z 56° 7' N, 2° 0' W Click for more
1025052 CTD/STD cast 2009-06-07 13:35Z 56° 8' N, 2° 7' W Click for more
1025064 CTD/STD cast 2009-06-07 15:24Z 56° 7' N, 2° 19' W Click for more
1025076 CTD/STD cast 2009-06-08 04:08Z 56° 12' N, 2° 30' W Click for more
1025088 CTD/STD cast 2009-06-08 05:10Z 56° 11' N, 2° 20' W Click for more
1025107 CTD/STD cast 2009-06-08 06:55Z 56° 12' N, 2° 10' W Click for more
1025119 CTD/STD cast 2009-06-08 07:50Z 56° 12' N, 1° 59' W Click for more
1025120 CTD/STD cast 2009-06-08 09:25Z 56° 12' N, 1° 49' W Click for more
1025132 CTD/STD cast 2009-06-08 10:00Z 56° 9' N, 1° 51' W Click for more
1025144 CTD/STD cast 2009-06-08 11:37Z 56° 2' N, 1° 49' W Click for more
1025156 CTD/STD cast 2009-06-08 12:20Z 56° 2' N, 1° 42' W Click for more
1025168 CTD/STD cast 2009-06-08 14:04Z 56° 7' N, 1° 39' W Click for more
1025181 CTD/STD cast 2009-06-08 14:45Z 56° 6' N, 1° 32' W Click for more
1025193 CTD/STD cast 2009-06-09 04:13Z 56° 2' N, 1° 29' W Click for more
1025200 CTD/STD cast 2009-06-09 04:57Z 56° 2' N, 1° 23' W Click for more
1025212 CTD/STD cast 2009-06-09 06:45Z 56° 7' N, 1° 20' W Click for more
1025224 CTD/STD cast 2009-06-09 07:49Z 56° 12' N, 1° 30' W Click for more
1025236 CTD/STD cast 2009-06-09 08:32Z 56° 13' N, 1° 37' W Click for more
1025248 CTD/STD cast 2009-06-09 11:58Z 56° 22' N, 2° 10' W Click for more
1025261 CTD/STD cast 2009-06-09 12:59Z 56° 17' N, 2° 20' W Click for more
1025273 CTD/STD cast 2009-06-09 13:49Z 56° 17' N, 2° 30' W Click for more
1025285 CTD/STD cast 2009-06-10 06:03Z 56° 22' N, 2° 22' W Click for more
1025297 CTD/STD cast 2009-06-10 06:44Z 56° 22' N, 2° 29' W Click for more
1025304 CTD/STD cast 2009-06-10 07:27Z 56° 27' N, 2° 31' W Click for more
1025316 CTD/STD cast 2009-06-10 08:59Z 56° 27' N, 2° 20' W Click for more

Project Database

No data currently held for this cruise in the BODC Project Database

References

Track Charts

Track Chart

Reports

Cruise Report