Site Details: Nevis B

Mallaig Industrial Estate Building 4
PH41 4PX
Operator: Scottish Sea Farms Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Nevis B Production cycle end date: Jul 2021
Total losses: 16.8 %

Nevis B Production cycle end date: Nov 2022
Total losses: 64.3 %

Source

Fish Health Inspectorate mortality

Date:
29/08/22-04/09/22
Mortality:
9,792
Mortality Rate:
2.00%
Reason given: Gill Health Related
Gill Health Related
CGD, diagnostic visit in wk 36; aeration system installed
First report this cycle. Requested details of diag results when they are available.
Date:
05/09/22-11/09/22
Mortality:
11,402
Mortality Rate:
2.40%
Reason given: Gill Health Related
Gill Health Related
Suspected zooplankton insult to gills; CGD
FHI to monitor - suspected zooplanton insult awaiting diagnostic result
Date:
12/09/22-18/09/22
Mortality:
10,611
Mortality Rate:
2.30%
Reason given: Environment; Gill Health Related post jellyfish bloom
Environment; Gill Health Related post jellyfish bloom
CGD; harvetsing to fallow
Awaiting results of investigation, currently harvesting
Date:
19/09/22-25/09/22
Mortality:
40,041
Mortality Rate:
9.30%
Reason given: Environment; Gill Health Related post jellyfish bloom
Environment; Gill Health Related post jellyfish bloom
CGD; harvetsing to fallow
Mortalities have increased x4, seeking further info from business
Date:
26/09/22-02/10/22
Mortality:
33,967
Mortality Rate:
8.90%
Reason given: Environment; Gill Health Related
Environment; Gill Health Related
CGD; harvetsing to fallow
Fallow by end of week 42. FHI to monitor.
Date:
02/10/22-09/10/22
Mortality:
41,870
Mortality Rate:
14.7%
Reason given: Environment; Gill Health Related
Environment; Gill Health Related
CGD; harvesting to fallow
Site to fallow by end of week 42.
Date:
10/10/22-16/10/22
Mortality:
64,980
Mortality Rate:
26.60%
Reason given: Environment; Gill Health Related
Environment; Gill Health Related
CGD; harvesting to fallow
Site due to be fallow 26/10/22. FHI to monitor.
Date:
17/10/22-23/10/22
Mortality:
88,161
Mortality Rate:
49.10%
Reason given: Environment; Gill Health Related
Environment; Gill Health Related
CGD; harvesting to fallow in wk 43
Site due to be fallow 26/10/22. FHI to monitor. Mortality count updated by SSF 02/11/2022
Date:
24/10/22-30/10/22
Mortality:
22,960
Mortality Rate:
59.80%
Reason given: Environment; Gill Health Related
Environment; Gill Health Related
CGD; site to be fallow in wk 44
Harvest schedule is on plan and the site is due to fallow week 44.
Date:
04/11/24-10/11/24
Mortality:
3,236
Mortality Rate:
1.2%
Reason given: Gill Health related; Sea Lice Related
Gill Health related; Sea Lice Related
CGD; Post physical delicing
FHI visit scheduled.

Source

Inspection reports

Case Number: 2020-0497


Download Mortality data
2017 week 39 - 1.12% - 1315
2017 week 41 - 1.11% - 1279
2017 - week 45 - 6.91% - 117
2017 week 46 - 4% - 63
Was end of cycle, very small numbers of fish. Numbers not reported to FHI.
2020 -Plankton event observed at end of october, followed by a localised mortality event. Mortality back to normal levels now.
Treatments have been taking place to treat AGD.
Fish appeared to be in good condition with good feeding response. All fish sampled for VMD appeared healthy and showed no clinical signs of disease. [Original PDF]

Case Number: 2022-0097


Download Remote inspection carried out 21/04/2022 by , supervised by .
Site inspection carried out 28/04/2022 by and .
Fish in good condition with no moribund/lethargic fish observed while on site. Fish caught to carry out a sea lice count appeared in good health with the lice levels matching the counts being submitted in the previous weeks. The one fish selected for vmd sampling also appeared healthy upon internal examination with no gross pathology observed. [Original PDF]

Case Number: 2023-0538


Download Wrasse motality on site low <100 pm across the site.
Lice numbers have been low, however prophylactic treatments (alphamax) was administered just after input.
Site temperature used as inspector's thermometer unavailable.
Inspection and paperwork carried out by , observed by [Original PDF]

Case Number: 2024-0439


Download Stock origin: Barcaldine Smolt Unit and Knock Hatchery but all were transferred from Nevis A (FS0430).
Nevis A to Nevis B - wrasse moved from 27/11/2023 until 29/04/2024 (6 movements). Signs of atypical furunculosis on input however no increased mortalities associated with it at the time.
Recent treatments:
Thermolicer treatment - wk 45- to combat lice
FW treatments - 4 hrs - between 26/08-01/09/2024
Increased Wrasse Mortality (2024):
Wk36, 6.43%, 713 - FW Treatment related
Last SLICE - 21/06/2024: all pens were treated. Last bath treatment for AGD was conducted on 04/06/2024.
ROV net cleaners used onsite.
Health team out once a quarter - last visit 30/07/2024.
During site inspection, very few lethargic fish were observed. Maturation was noted in the stock and with some of the lethargic fish showing signs of maturation. One fish was removed for VMD sampling and was observed to be healthy internally and externally.
Remote inspection conducted on 14/11/2024 and all paperwork except for movement, waste and transport records inspected, by . Remaining paperwork was reviewed on the day of the site inspection (20/11/2024) by and supervised by .
Fish sampled for VMD by on 20/11/2024. [Original PDF]

Source