Smolt trap update

Saturday was a strangely quiet day in the smolt trap with only 150 salmon trapped. However, it rained a fair bit on Friday night and the river rose during Saturday, peaking at 35cm on the SEPA gauge. Consequently Sunday was a lot busier with our best catch to date recorded – 1070 salmon plus a few trout.

A nice silver sea trout smolt from the trap on Sunday.

A nice silver sea trout smolt from the trap on Sunday.

Today the river had dropped to 22cm but we still had a good catch consisting of 730 salmon and about 44 trout. As part of our mark and recapture trials 200 salmon were marked and released back upstream today. This afternoon was, by a couple of degrees, our warmest day of the year and there may be a rising river tomorrow due to snow melt.

Over 6200 salmon caught in the trap so far.

Authored by: Brian Shaw

There are 3 comments for this article
  1. Niall Cook at 11:49 am

    that’s a good catch for this stage in the season and nice that you have good recapture efficiences which should give you some fairly tight CIs on your run estimates. What kind of river temps have you got at the moment and any indication that the sea trout run is earlier than the salmon one? Niall. (former RST operator on the Tyne!)

    • Brian Shaw Author at 12:25 pm

      Hi Niall, it has been an early spring but no sign of the run diminishing yet, we had about 800 this morning (processing still underway). The temp today was 9.6oC – the highest it has been, although it has was 7+ over the last week. Our experience is that the sea trout smolt run is later than the salmon and certainly we are seeing more sea trout this week but time will tell. Cheers Brian

      • Niall Cook at 11:18 am

        OK thanks Brian. It was slightly different for us here on the Tyne as we were operating the trap at the bottom of the river (c. 7 miles form the tidal limit) and didn’t catch much until river temperatures had risen above 10 degrees. No indication that the main run of sea trout smolts was any earlier or later than that of salmon either, although catches of the former species invariably tailed off sooner. Niall.

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