Marine

  • Scallop Stock Assessment

    6th July 2018 by

    Survey: 1018A Duration: 4-23 July 2018 Fishing Gear: Scallop dredges Objectives To carry out a survey of scallop stocks on the East Coast. To age, measure and assess shell damage on all scallops caught. To collect information on by-catch of other commercial fish and shellfish species. To identify and quantify numbers of starfish species in…

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  • What’s at our Disposal? The latest from the research vessel Alba na mara

    20th June 2018 by

    Survey: 0918A Duration: 18 June – 1 July 2018 Sampling Gear: TV drop frame, TV winch and cable, 2 x day grabs and RoxAnn. Objectives To undertake grab, underwater television (UTV) and RoxAnn surveys of sea disposal sites and assess the condition of the seabed, identify the predominant benthic epifauna species, and the distribution of…

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  • Benthic Biotopes in Barra

    11th June 2018 by

    Survey: 0818A Duration: 8 – 14 June 2018 Gear: Seatronics drop frame (to be loaded 05.06.18) – SNH hire Seatronics lights (to be loaded 05.06.18) – SNH hire HD TV system + lights (5 plastic cages) Armoured cable + spare + axle stands & bar Day grab + table + 2 x sieve drawers Background…

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  • Predicting Suitable Habitat

    10th May 2018 by

    Survey: 0618A – MRV Alba n Mara Duration: 5-14 May 2018 Gear: Hybrid drop/lander frame and calibration mesh; HD TV system and lights (five plastic cages); Armoured cable, spare, axle stands and bar; Stereo TV system; and Day grab, table and two sieve drawers. Background and Objectives: This survey will conduct a benthic survey of southern,…

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  • Twinkle twinkle little starfish

    12th April 2018 by

    Survey: 0518A Duration: 14 April – 2 May 2018 Gear: Scallop dredges Objectives To carry out a survey of scallop stocks on the West Coast. To age, measure and assess shell damage on all scallops caught. To Identify and sample additional areas of commercial interest to the scallop fishery. To collect information on by-catch of…

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  • Monitoring the Effect of Noise on Marine Environments

    26th March 2018 by

    Survey: 0418A Duration: 25 March – 11 April 2018 Gear: Subsurface passive acoustic moorings (incl. cetacean detectors and sound recorders); Subsurface VEMCO VR2 salmon tag detector moorings; and Subsurface Acoustic Doppler Current Profiler (ADCP) mooring. Objectives: To deploy 95 moorings with VR2 salmon detectors between Ythan Estuary and Findon Ness (‘outer array’ shown on Figure…

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  • Bright lights; Big fish trials

    2nd March 2018 by

    Survey: 0318A Duration: 8-22 March 2018 Equipment: BT 201 Prawn net – rigged with separator grid and two 80mm codends; Trawl doors, sweeps, bridles, backstrops and pennants; Spare netting and twine; Safety-Net Technologies light unit; PSL5000 light unit x 2; Lindgren Pitman Electralume light x10; 4 x 10m side emitting light cables; Battery pods; Video…

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  • Counting scallops

    24th January 2018 by

    Duration: 25 January – 7 February 2018 Fishing Gear: Scallop dredges Objectives To carry out a survey of scallop stocks around the Shetland Islands.  To age, measure and assess shell damage on all scallops caught.  To collect information on by-catch of other commercial fish and shellfish species.  To identify, quantify numbers, and damage assess of…

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  • Having eel-y good fun on the Alba na mara

    6th December 2017 by

    Duration: 6-19 December 2017 Equipment Sandeel dredge × 2 (modified 4′ scallop dredge with 6″ teeth and spare toothbars) with towing bar and camera attachment. TV camera. Minilogger (or equivalent). Objectives To determine the abundance, length and age of sandeels in the sediment from regions east of the Firth of Forth and around Turbot bank….

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  • Hearing things with COMPASS

    29th November 2017 by

    On November 6th the Alba na Mara set sail once more to deploy acoustic listening devices in the west coast of Scotland. A total of six moorings containing broadband sound recording devices and cetacean echolocation “click detectors” were to be deployed during the trip. The map below gives the planned locations for deployment. These deployments…

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