Scottish Fish Farm Production Survey 2015

4. Other Species

The Scottish aquaculture industry has continued to farm other species of fish during 2015. The production of brown trout ( Salmo trutta) showed a small decrease, with the majority of the production being for the angling restocking market. Production of halibut ( Hippoglossus hippoglossus) also decreased while there was a very small amount of Arctic charr ( Salvelinus alpinus) produced. There was no cod ( Gadus morhua) production during 2015. Lumpsucker ( Cyclopterus lumpus) and several species of wrasse (Labridae) were also produced in 2015. The production of lumpsucker and wrasse are targeted at the marine Atlantic salmon industry where they are used as a biological control for parasites.

Company, Site and Production Data

Table 40: Number of companies and sites producing other species in 2015, annual production of other species (tonnes) during 2012-2015 and estimated production in 2016

* Industry estimates based on stocks currently being on-grown.
† Production occurred but this cannot be shown without revealing the figure for an individual company.
∞ The estimated production for 2016 cannot be shown without revealing the figure for an individual company.

Staffing

Table 41: Number of staff employed in farming other species during 2006-2015

In 2015, the overall number of staff employed in the production of other species increased by one.

Production of Cleaner fish

Table 42: Number of cleaner fish produced during 2015

In recent years lumpsucker and wrasse spp. have been produced for use as a biological control for parasites in the marine Atlantic salmon industry. Data on the number of fish produced has only been collected since 2015. As data for future years is collected it will show trends in cleaner fish production.

Ova Laid Down to Hatch

Table 43: Source of ova from other species laid down to hatch during 2015

Trade in Small Fish

Table 44: Trade in small fish of other species in 2015

There was also a small amount of production of: brook charr ( Salvelinus fontinalis); carp ( Cyprinus carpio); sheepshead minnow ( Cyprinodon variegatus variegatus); tiger trout ( Salmo trutta x Salvelinus fontinalis) and turbot ( Scophthalmus maximus). However, due to the small number of companies in production, it is not possible to summarise these data without revealing the production of individual companies.

Organic Production

Of the 30 sites recorded as producing other species in 2015, no organic production was reported.

Escapes

There were no reported escapes from sites rearing other species during 2015.