Ray, Starry

Amblyraja radiata

Method of production — Caught at sea
Capture method — Beam trawl
Capture area — North East Atlantic (FAO 27)
Stock area — Norwegian Sea, Skagerrak, Kattegat and North Sea
Stock detail

2, 3a & 4


Picture of Ray, Starry

Sustainability rating five info

Sustainability overview

The stock status is unknown but the population has been steadily declining since the 1990s. Scientists advice that there should not be a targeted fishery for this stock and measures should be taken to reduce bycatch. The EU had designated this species as a Prohibited Species in areas 2a, 3a and 7d and ICES subarea 4. This means that fishermen are prohibited from targeting, retaining, transhipping or landing the species in these areas. Therefore, this is automatically red-rated.

Biology

Starry rays belong to the Rajidae family which includes skates and rays. Starry rays are a medium sized species attaining a maximum length of about 105cm. Males and females mature at a length of about 40cm (between 4 and 5 years old). The species has a maximum recorded age of 16 years.

Stock information

Criterion score: 1 info

Stock Area

Norwegian Sea, Skagerrak, Kattegat and North Sea

Stock information

The stock status is unknown. There was a strong increase in populations after the 1960s throughout most of UK seas, however, since 2000, Starry Ray populations have decreased substantially. They are a smaller-bodied species which may mean they are faster growing but also subject to relatively high discards. However, Starry ray are considered to be one of the least sensitive skate to fishing pressure.

Scientists advice that there should not be a targeted fishery for this stock and measures should be taken to reduce bycatch. Current landings are 0.5 tonnes. This advice is valid for 2016 to 2019. The species has been designated as a Prohibited species in areas 2.a, 3.a 7.d and subarea 4.

The species is widespread throughout the region, with no evidence of change of distribution. Their distribution has gradually been moving northward and their population declines are likely linked with climate change.

Since starry rays are prohibited species, they are automatically red-rated.

Management

Criterion score: 1 info

The EU had designated this species as a Prohibited Species in areas 2a, 3a and 7d and ICES subarea 4. This means that fishermen are prohibited from targeting, retaining, transhipping or landing the species in these areas.

Capture Information

Criterion score: 1 info

Starry ray are a bycatch species in bottom trawl fisheries and are normally discarded. Starry ray is generally found in cool, deep waters in muddy and sandy substrates. Since scientists advise that this species should not be caught in this region, this rating is automatically red-rated.

Alternatives

Based on method of production, fish type, and consumer rating: only fish rated 2 and below are included as an alternative in the list below. Click on a name to show the sustainable options available.

Dab
Halibut, Atlantic (Farmed)
Halibut, Pacific
Megrim
Plaice
Sole, Dover sole, Common sole
Sole, Lemon
Turbot (Caught at sea)
Turbot (Farmed)

References

ICES 2016. Starry ray (Amblyraja radiata) in Subareas II and IV and Division 3a (Norwegian Sea, North Sea, Skagerrak, and Kattegat). Available at: http://ices.dk/sites/pub/Publication%20Reports/Advice/2015/2015/rjr-234.pdf

http://ices.dk/sites/pub/Publication%20Reports/Expert%20Group%20Report/acom/2017/WGEF/17%20WGEF%20Report%20-%20Section%2015%20Demersal%20elasmobranchs%20in%20the%20North%20Sea,%20Skagerrak,%20Kattegat%20and%20Eastern%20Channel.pdf



Ellis, J. R., Burt, G.J., Grilli, G., McCully Phillips, S.R., Catchpole, T.L., Maxwell, D.L. 2018. At-vessel mortality of skates (Rajidae) taken in coastal fisheries and evidence of longer-term survival. Journal of Fish Biology. 92, 1702-1719. doi:10.1111/jfb.13597

Mangi, S., Kupschus, S., Mackinson, S., Rodmell, D., Lee, A., Bourke, E., Rossiter, T., Masters, J., Hetherington, S., Catchpole, T. and Righton, D. 2018. Progress in designing and delivering effective fishing industry science data collection in the UK. Fish 00:1-21. https://doi.org/10.1111/faf.12279