Tridens has started the survey in the afternoon of Monday 30.06. after heading from Aberdeen to the start of the first transect in the northwestern part of our survey area. Below is a map with the transects we are going to cover this week.
On Tuesday we had our first three hauls containing predominantly herring. Find below the echograms of the situation just before the hauls and associated time/location information.
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| haul 1: 01/07/2014 @ 5:30 UTC (58º20'N 0º25'W) |
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| haul 2: 01/07/2014 @ 12:00 UTC (58º20'N 0º46'E) |
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| haul 3: 01/07/2014 @ 19:43 UTC (58º08'N 1º20'E) |
The catches were several tonnes and herring were mostly between 25 and 30cm, with means around 27 & 28cm.
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| first herring samples |
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| fish sorting at the belt after the catch has come in |
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| average sized herring from the first haul |
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| Hendrik Jan taking the catch samples |
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| Daniel Gallagher from Ireland helping out during the survey to get some practical experience. Here he is preparing the otoliths (fish earbones) for age reading back in the institute |
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| trays containing the preserved and fixed otoliths: one pair per sampled fish |
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