Site Details: Rum

Rum Fish Farm
PH43 4RR
Operator: Mowi Scotland Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Production cycle end date: Jun 2020
Total losses: 25.5 %

Production cycle end date: Apr 2022
Total losses: 16.6 %

Production cycle end date: Aug 2023
Total losses: 6.1 %

Source

Fish Health Inspectorate mortality

Date:
03/01/22-09/01/22
Mortality:
4,929
Mortality Rate:
1.84%
Reason given: CMS
CMS
Following week (WB:10/01/2022) mortality reduced to 0.72% bellow the reporting threshold. FHI to monitor.
Date:
10/01/22-16/01/22
Mortality:
2,717
Mortality Rate:
1.03%
Reason given: CMS
CMS
Site mortality below reporting threshold so far for wb 17/01/2022. FHI to monitor.
Date:
17/01/22-23/01/22
Mortality:
3,850
Mortality Rate:
1.48%
Reason given: CMS
CMS
Strategic harvesting on site with pens with the highest mortalities being targeted. The site is on target to be fallow by April 2022. FHI to monitor.
Date:
24/01/22-30/01/22
Mortality:
3,139
Mortality Rate:
1.27%
Reason given: CMS
CMS
Mortalities have reduced from previous week and fell below the reporting threshold in the following week. Harvest is ongoing and site is expected to be fallow by April 2022. FHI to visit w/b 14/03.
Date:
07/02/22-13/02/22
Mortality:
3,033
Mortality Rate:
1.25%
Reason given: Complex gill diseases and SRS.
Complex gill diseases and SRS.
Mortalities continue to reduce from previous weeks and site is undergoing harvesting. Site expected to be fallow in April 22. FHI to visit w/b 14/03.
Date:
14/02/22-20/02/22
Mortality:
2,680
Mortality Rate:
1.12%
Reason given: Complex gill disease and SRS.
Complex gill disease and SRS.
Fish being monitored closely by site, harvest plan in place. FHI to visit site week beginning 14/3.
Date:
21/02/22-27/02/22
Mortality:
2,315
Mortality Rate:
1.38%
Reason given: CMS
CMS
Fish being monitored closely by site, harvest plan in place. FHI to visit site week beginning 14/3.
Date:
01/08/22-07/08/22
Mortality:
1,432
Mortality Rate:
1.17%
Reason given: Treatment mortality -wellboat
Treatment mortality -wellboat
week 8/8/22 Mon to Thurs 0.32%
FHI to monitor. Site due a routine inspection this year. Will be prioratised should problems persist.
Date:
15/08/22-21/08/22
Mortality:
2,419
Mortality Rate:
2.01%
Reason given: Treatment loss (Hydrolicer)
Treatment loss (Hydrolicer)
Mortality rate has increased in following week to 3.39%. Fish moved onto site from Gorsten in July so higher percentage but smaller numbers.
Fish moved onto site from Gorsten in July so higher percentage but smaller numbers. Routine site visit scheduled for week of 17/10. Harvesting due to commence mid Sept but may be brought forward if sea lice issues persist.
Date:
22/08/22-28/08/22
Mortality:
3,986
Mortality Rate:
3.39%
Reason given: Gill infections
Gill infections
Compromised gills from suspected enviromental insult.
Routine site visit scheduled for week beginning 17/10. Harvesting due to commence mid september but may be brought forward if sea lice issues persist.
Date:
29/08/22-04/09/22
Mortality:
5,801
Mortality Rate:
5.10%
Reason given: Gill infections
Gill infections
Stocks planned to be harvested out by 15th September
Planned fallow 15th September.
Date:
05/09/22-11/09/22
Mortality:
22,793
Mortality Rate:
21.13%
Reason given: Gill-Health Related
Gill-Health Related
Site harvested out on 14th Sep
Site fallow
Date:
12/09/22-18/09/22
Mortality:
979
Mortality Rate:
4.18%
Reason given: Gill infections
Gill infections
Site now fallow
Site fallow
Date:
07/08/23-13/08/23
Mortality:
1,722
Mortality Rate:
1.33%
Reason given: Gill infections
Gill infections
Site currently harvesting, due to fallow week 34.
Date:
14/08/23-20/08/23
Mortality:
8,793
Mortality Rate:
6.89%
Reason given: Gill infections
Gill infections
Second report this cycle. Site due to fallow Wk 34.
Date:
21/08/23-27/08/23
Mortality:
2,402
Mortality Rate:
3.23%
Reason given: Gill infections
Gill infections
Site is now fallow.
Date:
20/11/23-26/11/23
Mortality:
6,918
Mortality Rate:
1.05%
Reason given: CMS/Bacterial
CMS/Bacterial
First report this cycle. FHI to monitor.
Date:
27/11/23-03/12/23
Mortality:
8,677
Mortality Rate:
1.42%
Reason given: CMS/Bacterial
CMS/Bacterial
Second report this cycle. FHI to monitor.
Date:
04/12/23-10/12/23
Mortality:
7,863
Mortality Rate:
1.31%
Reason given: CMS/Bacterial
CMS/Bacterial
FHI to monitor.
Date:
11/12/23-17/12/23
Mortality:
6,275
Mortality Rate:
1.18%
Reason given: CMS/Bacterial
CMS/Bacterial
FHI to monitor.
Date:
25/12/23-31/12/23
Mortality:
8,870
Mortality Rate:
1.94%
Reason given: HSMI
HSMI
FHI to monitor.
Date:
01/01/24-07/01/24
Mortality:
5,315
Mortality Rate:
1.19%
Reason given: CMS
CMS
Numbers decreased from previous week. FHI to monitor.
Date:
15/01/24-21/01/24
Mortality:
4,240
Mortality Rate:
1.31%
Reason given: CMS
CMS
FHI to monitor.

Source

Inspection reports

Case Number: 2021-0415


Download Fish have been taken from Hellisay to reduce biomass rather than fallow. Only 2k of Rum fish left - being harvested out tomorrow.
Plan to have 7 pens of Fish from Hellisay stocked at site.
CGD was on-going on site, background AGD, gill checks were seeing anaemic fish, fish bleeding out during lice counts.
Heavy stocked pens were seeing high mortality - Dips in oxygen at night time and late afternoon.
High biomass pens took largest hit at first. Large amounts of jellyfish observed in water at time of mortality event. Mortality attributed to poor gill health and enviromental insult. P. pileus and Aglantha sp identified from water sampling.
Uplifts moved onto site to remove excess mortality - extra boats and bins brought in to deal with mortality.
After test treatment was conducted, it was decided to remove all fish from site, crowds sustaining high mortality.
Round of AMX treatments completed in August prior to event. Very good clearance for caligus, low numbers of leps.
Lice numbers have increased since beginning of mortality event, as treatments could not be conducted due to poor gill health of the fish.
Mortality (last 4 weeks) wb 04/10/2021 - 9.65% - 29119 wb 27/09/2021 - 7.08% - 34444 wb 20/09/2021 - 7.02% - 49282 wb 13/09/2021 - 6.22% - 52598
PSI conducted after repeated notification to FHI of high mortality on site. [Original PDF]

Case Number: 2022-0052


Download Remote inspection done on 08/03/2022 by , observed by .
Recent high mortalities due to CMS. Harvesting targeted for worst affected pens. All events reported to FHI.
Stock from Hellisay. Mowi made the decision to transfer the fish to Rum in order to fallow Hellisay to avoid stocking the site during winter/poor weather conditions. Risk assessment completed prior to transfer.
Lumpfish farmed at Otterferry, input in October.
Some issues with Caligus in summer due to high numbers of wild fish, regular Alphamax treatments to keep it under control.
Site avoids stocking smolts during this period.
The farm is not currently part of a CoGP management area, however they had prepared a satisfactory farm management statement and this was available for inspection.
Site inspection not possible due to weather. [Original PDF]

Case Number: 2023-0138


Download Inspection of records and documents carried out remotely on 12/05/2023.
Site is currently not in a FMA but do have an adequately prepared FMS which was available for inspection.
Site has seen a slight increase in seal activity but no damage to nets but will be changing to Seal Pro nets prior to next cycle.
Only 2 lethargic fish observed from all stocked pens. But no clinical signs of disease. The occasional runt also observed but less than 1 per pen. Fish remained low in the water so hard to see but when spotted were observed shoaling as in normal behaviour. Fish that were removed for vmd sampling looked in good condition. No clinical signs of disease upon internal examination.
Site mainly grows fish to harvest size with a mixture of live and dead haul going to Mallaig. There is the occasional movement off site to other sites but just tends to be a single site per cycle when it occurs. [Original PDF]

Source