Site Details: Evanachan Salt Water

Otter Ferry
Argyll
Argyll
PA21 2DH
Operator: Otter Ferry Seafish Ltd
Water type: Seawater

Inspection reports

Case Number: 2020-0436


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No water quality or predator issues on site. Production of juvenile halibut is undertaken for transfer and on-growing on Gigha.
Pigmentation issues are ongoing but this does not affect the fish.
Wrasse and lumpfish are on-grown for use as biological sea lice control on salmon production sites. Have periodic issues with atypical furunculosis in wrasse and have AGD present in lumpfish. Environmental enrichment is used in the tanks along with reducing the light levels. Demand remains high for cleanerfish production. Improvements are being undertaken to production facilities.
Site is never fallow but good biosecurity between production units and cleaning and disinfection between production batches. [Original PDF]

Case Number: 2021-0449


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Remote inspection done on 28/10/21 by , supervised by .
Recent mortalities:
Wrasse
1-28 October - 17,886 (2.86%)
Halibut
1-28 October - no mortality
Lumpfish
1-28 October - 3,800 (1.04%)
Other peaks in mortality
Wrasse
July 2021 (9.65%, 82.3g) - atypical furunculosis, fish treated with antibiotic
Lumpfish
November 2020 (16.27%, 12g) - atypical furunculosis, fish treated with antibiotic
January 2021 (12.33%, 1.6kg) - atypical furunculosis, fish treated with antibiotic
March 2021 (14.6%, 2.2kg) - atypical furunculosis, fish treated with antibiotic
April 2021 (17.1%, 2.6kg) - atypical furunculosis, fish treated with antibiotic, strain now included into injectable vaccine
May 2021 (18.56%, end of cycle) - end of cycle, most fish culled due to lack of demand
Physical inspection done by and observed by on 03/11/2021.
Populations looked healthy with no apparent clinical signs of disease. Background mortalities observed in some of the tanks. [Original PDF]

Case Number: 2022-0189


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There have been new facilities (J building) added within the Salt Water unit, and have been on stream since December 2021.
Site details will change to reflect additions.
The majority of the fish that are transferred onto site are from the Evanachan Marine Hatchery.
In the next couple of months, site is actively trying to increase production of ballan wrasse and broodstock. In process of sourcing wild caught ballan wrasse from a fishery. Upon arrival to site, these will be put into quarantine. Previously fish have been caught from Isle of Skye and Mull.
Regarding disposal of mortalities, morts are recorded daily and removed. Upon removal they are frozen and the incinerated.
Site is looking at possibilities to ensile mortalities for future use, due to the high cost related to incineration.
Fish are transferred on and off site via Solway or Migdale Transport. No processing occurs on site.
In the nursery units, fish are fed with live feed such as artemia, rotifers and cryopreserved barnacle larvae. Then all fish are fed with various dry commercial feeds.
Mortalities:
J building- ballan wrasse 2022: Wk23, 0%,0; Wk22, 0.6%,951; WK21, 0.71%,1177; WK20, 0.86%, 1751
New nursery- ballan wrasse 2022: Wk23, 0%, 0; Wk22, 0.97%, 982; Wk21, 1.50%, 1546; Wk20,1.92%, 2017
SP tanks- ballan wrasse 2022: Wk23, 0%, 0; Wk22, 0.07%, 3858; Wk21, 0.05%, 2721; Wk20, 0.08%, 4466
No mortalities recorded in last 4 weeks in BP2
Sea lice risk assessment available detailing that regular checks at sampling will occur.
Remote inspection conducted by and supervised by on 02/06/2022.
Site inspection conducted on 09/06/2022 by and supervised by [Original PDF]

Case Number: 2023-0107


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Treatment in Wrasse; bayril-( enroflaxacin active ingredients) specific written vet instruction Bute and Cowal vets. No withdrawal applied for wrasse as they are not intended for human consumption.
Atypical furunculosis, wrasse juv 1-12g, fish off feed then increased mort - given infeed Florfenicol. Dip vaccine at 3g-all vaccinated now. Fish with atypical frunc were not vaccines as only IP vaccine available and fish need to be 20g.
Wrasse tested by PCR March 2023. 5 tanks tested- 3 positive for ADG and Atypical furunc
AGD - still an issue whole room treatments 4-5 days in reduced 20-25 ppt salinity
Mortality; Wrasse 38000 fish; growers and juveniles from a stock of 600000 - 6.3% - atypical furunc.
Lump fish cull 23/2/23 ago due to lack of customers, 132000 were culled (10-90g) euthanised with MS222 and disposed of by
Billy Bowie - Barkip- Bakkafrost, Mowi, SSF were due to take the fish but an issue with vaccines led to delay in supply and orders were cancelled also many of the destination sites were having gill issues and multiple wellboat FW treatments.
They have therefore planed to get no more lumpfish imports from Norway. Lumpfish production is to be scaled down. Last imports from Norway on April and May 2022
Salmon on site from Ardtaraig and Furnace for feed trails. Will be grown out for harvest. No sea lice have been observed on site. Intake water is course filtered, sand filtered and then UV treated. Discharge is not treated.
Wrasse feeding cycle, Rotifers, Barnacles larva, artemia, pelleted feed, mussels (cooked and shelled).
Sea lice - Intake water passed through sand filter then UV treated. Lice have never been seen on site in any of the species but are inspected regularly.
Site thermometer used to biosecurity reasons [Original PDF]

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