Site Details: Geocrab Hatchery

Geocrab Mill
Geocrab
South Harris
HS3 3HB
Operator: Bakkafrost Scotland
Water type: Freshwater

Fish Health Inspectorate mortality

Date:
08/08/22-14/08/22
Mortality:
38,955
Mortality Rate:
2.03%
Reason given: Environment (Water quality)
Environment (Water quality)
Transfer stock to lochs (FS0737 & FS0149) temporarily
elevated water temperatures and issues with the oxygenation system, fish were transferred out to fw sites, fish will be moved back when systems are repaired. Only 2023 Q1 transferred, 2022 Q3 were not affected.
Date:
16/01/23-22/01/23
Mortality:
237,012
Mortality Rate:
7.46%
Reason given: Ova mortality following transfer from supplier
Ova mortality following transfer from supplier
Site contacted for further information. Ova mortality has occurred following transfer from supplier (Aquagen eggs). A flood was reported early in the new year which is thought to have compromised the water quality of the supplier. It is thought that is the cause of mortality for this event. The site are now back below report threshold.
Date:
16/10/23-22/10/23
Mortality:
10,498
Mortality Rate:
2.93%
Reason given: Stock Incident
Stock Incident
Aquasen/Cress
Historic event reported retrospectively due to error in company internal report was not split by FS number for location that had multiple FS numbers.
Date:
23/10/23-29/10/23
Mortality:
7,362
Mortality Rate:
1.53%
Reason given: Fungus
Fungus
Aquasen/Cress
Historic event reported retrospectively due to error in company internal report was not split by FS number for location that had multiple FS numbers.
Date:
08/01/24-14/01/24
Mortality:
43,287
Mortality Rate:
4.07%
Reason given: Fungus
Fungus
Business contacted: Formalin bath treatments administered and successful, mortality returned below threshold the following week.
FHI to monitor.

Source

Inspection reports

Case Number: 2022-0445


Download Last mortality event and report was on the 08/08/2022 where fish were 23.6g (Q1). Mortality reported a 2.03%, 38955, transfer stock to lochs. Elevated water temperatures and issues with the oxygenation system, fish were transferred out to fw sites, fish will be moved back when systems are repaired. Only 2023 Q1 transferred, 2022 Q3 were not affected. Transfer stock to lochs
(FS0737 & FS0149) temporarily
The last fish moved off site, Wk37, 17/18 09 2022, Gravir.
Ensiled on site and transporter takes waste tanks away.
Site thermometer used for biosecurity reasons.
During the site inspection, hatching eggs were observed and minimal amount of unviable/failed eggs were seen. [Original PDF]

Case Number: 2022-0445


Download Last mortality event and report was on the 08/08/2022 where fish were 23.6g (Q1). Mortality reported a 2.03%, 38955, transfer stock to lochs. Elevated water temperatures and issues with the oxygenation system, fish were transferred out to fw sites, fish will be moved back when systems are repaired. Only 2023 Q1 transferred, 2022 Q3 were not affected. Transfer stock to lochs
(FS0737 & FS0149) temporarily
The last fish moved off site, Wk37, 17/18 09 2022, Gravir.
Ensiled on site and transporter takes waste tanks away.
Site thermometer used for biosecurity reasons.
During the site inspection, hatching eggs were observed and minimal amount of unviable/failed eggs were seen. [Original PDF]

Case Number: 2023-0447


Download No clinical signs of disease observed during the inspection of the site. Fish were observed shoaling well and responding positively to routine feeding regimes. The site was inspected in fair weather with a good level of visibility.
Fish sampled for VMD appeared healthy both internally and externally. [Original PDF]

Case Number: 2024-0279


Download Upon inspection of the site, fish were observed shoaling well and responding positively to routine feeding regimes. No clinical signs of disease were observed during the inspection of the stocks. A statutory 30 fish test for VHS and IHN was conducted due to the water temperature being over 14 degrees at the time of inspection. Due to the small fish size, the 30 fish tested were pooled into 6 samples. The site is planning to fallow in August 2024, plans for re -stocking are unknown at present.
One mortality event was reported W/b 08/01/24 due to fungus. The site promptly treated with formalin and mortality returned below the reporting threshold the following week. Fish have recoved well and mortality has remained at low levels since.
All fish removed for sampling presented healthy and free of any signs of disease, both internally and externally.
Site thermometer used for biosecurity reasons. [Original PDF]

Source