Site Details: Tervine
Argyll
Argyll
PA35 1HE
Water type: Freshwater
Inspection reports
Case Number: 2020-0479
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All stock on site from Kinnaird Mill. Did have fish from Rocks Lodge, last input 1/10/19. No plans to import from Rocks Lodge to Tervine again.
Site manager reported a great survival rate at the site with morts being exceptionally low. No treatments had been administered in 2020. No feed mixing had taken place at the site since May 2017.
Predators not an issue on site. Dynema nets and top nets keep the bird issue under control and Grahams for vermin control.
Dead fish thought to be a 2kg RTR, observed floating outside pen B10. Badly degraded. Site is checked by ROV's. Informed it takes 2 weeks to check whole site. Staff told to check pen B10 and the ones in the vicinity ASAP. No incidences of mortalities being spilt into the loch. Site manager considered it to be an escapee from either Braevallich or Loch Etive some time ago.
Paperwork completed remotely 17/11/20 [Original PDF]
Case Number: 2022-0065
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Site visited to acquire some more information regarding the site and the potential escape of RTR in Loch Awe.
The average weight of fish on site ranges from 350g to 3.5kg.
Site manager explained the harvest procedures on site. Fish are pumped onto a raft which features the stunner machinery.
Fish are stunned and then collected in harvest bins. Any bloodwater is contained by a deep tray below the harvest machinery.
Next harvest is scheduled for May/June 2022.
ROV has been on site looking at pens with fish of similar size to farmed fish caught in the loch. No holes were observed. Still un
The procedure usually takes approximately 45 minutes per pen. The ROV is placed into the pen and dives down into the centre, hovering above the mort sock. The integrity of the mort sock is checked and it is ensured that the weight inside the mort sock is also attached. Subsequently, the ROV operator picks a point on one of the net panels and begins to move the
ROV to the surface of the panel. In this manner the whole panel is covered multiple times as the ROV is required to scan the whole panel. The image quality of the ROV is good and holes in the net would easily be seen. In addition, the operator has highlighted that any previously sewn seams are checked to ensure no ruptures have occurred.
It has been highlighted that routine checking of the nets occurs prior to any grade or harvest, and the ROV is used every time these checks occur.
Grading is conducted when fish are 1kg. The pipes used during the grading process are cling filmed to increase stability of pipes, as well as reduce any change of escape. In addition, a net is attached to the hopper to ensure no fish are able to escape. Once the fish have been graded from one pen, the fish are transferred into their permanent holding pen via the swim- through method. The swim-through is conducted by sewing a net into panels of the two pens. The panels are then release and the fish are able to swim from one pen to the other. This reduces handling and stress. No crowding occurs.
Mortality on site has been very low.
PKD was identified in fish last summer in 2021.
Site inspection conducted by on 30/03/2022 and shadowed by . Low number of moribund fish observed on site, approximatly 5 over whole site.
The nets that are used on site are Dyneema, where the oldest nets are approximately 5 years old. Recently, there has been a large amount of nets that have been replaced within the last year. Net strength was reported as 108kg/square. [Original PDF]
Case Number: 2022-0191
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CNA following Escape Investigation 2022-0065, with regards to the potential escape of RTR in Loch Awe.
Paperwork completed 01/06/2022 by , shadowed by .
Water peaty and dark, difficult to observe the net below the waterline. 2 lifted empty nets examined and no repairs and holes observed. This is reflected in the records with a lot of zero return net checks. Site manager observed that from experience from the site the nets don't get as much wear on them as in seawater lochs. Majority of nets have been upgraded to 152kg breaking strength. This is significantly over what is required. All older nets that are currently on site are planned to replace when the cage are harvested out. 2 Dead fish observed in in 2 pens. Overall populations looking very healthy. Fish get harvested at 3-3.5kg mark and they aim to have all larger fish harvested over the next weeks to avoid holding large fish in the hot months over the summer, as these are more susceptible to the warmer temperatures. Water temperature can get very warm in the loch over the summer. Pipes in place for regular harvests taking place are covered in extra netting as a precautionary measure in case pipes burst. All new nets on site have a double layer of mesh at the top 1 m above the water line, extending to 1 m below the waterline. This is mostly in place to deter otters and avoid any damage they might cause near the waterline.
Net strength testing record and procedure received and checked 30/09/2022. [Original PDF]
Case Number: 2023-0157
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Harvest permissions; dead harvest to Loch Duart, Blar Mhor and South Shian - only use Loch Duart. Automatic stunners.
Harvest at 3.5kg.
Mort disposal permissions sealed skips by Billy Bowie to Barkip Anaerobic digester. Collected about every 3-4 months last collection 17 March 2023.
No reported mort events
On inspection of site very few moribund fish were observed. One fish observed with exophalmia but were unable to catch it.
Three other moribund were removed for diag examination peak- mort wk 48 2022 - 0.5% attributed to lightning strike. Large end of fish size. last treatment 13/7/22 formalin cage G3 - costia and cardonella.
Input planned for today from Kinnaird Mill @300g.
Morts wk12 0.09% background 275 fish, wk13 0.07% background 224 fish. Wk14 0.09% background 275 fish, wk15 0.11%
(0.03% transport, 0.06% background) 310 fish
2022 hatch fish range from 850g to 3.2kg.
Health surveillance results from 7/3/23 PCR BKD +ve 2/7,RTFS +ve 4/7- no allocated mortality for either. Negative for SAV,
IPN, ERM PRV and furunculosis.
Predator control; double panelling at surface, dynema nest and top nets.
Week 48 2022 peak in morts due to lightning strike 5 pens mainly effected; B13 482 morts (9769 fish in pen), A2 189 morts
(22096 fish in pen), B12 188 morts (14874 fish in pen), B3 150 morts (7647 fish in pen), B9 135 morts (13286 fish in pen). - site not above reporting threshold. Red marks observed on the flank of dead fish. Strike also observed 20/6/17 when 12% morts were observed. Lightning rods were installed in 2019.
Accompanied by . Paperwork and diag sampling by , VMD sampling by [Original PDF]
Case Number: 2024-0419
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Site changing from RTR to SAL after current production cycle.
PKD last summer.
Dyneema nets on site(150kg) - no known escapes.
Harvest movements held on Mercatus system - all required information recorded.
Morts removed as whole fish by Billy Bowie for Biogas at Barkip.
Morts April 2023 - June 2024 - Maximum 0.57% in one week - week 36 2023 - PKD. Most weeks below 0.3%.
Morts July 2024 - November 2024. Maximum 0.38% week 31 (29 July). Most weeks below 0.25%.
Morts removed twice a week, moribunds daily. Morts today 100 for whole site. Last few weeks have been very low.
Two moribund and two dead fish seen across site. One moribund fish sampled for diagnostic investigation following observation of kidney pathology during sample demonstration for audit.
Surveillance frequency currently scores as low, but visited annually due to BKD movement restriction on site.
No treatments carried out so no treatment records. Showed previous example which held all required information.
Inspection, paperwork and sampling carried out by observed by . audited . [Original PDF]