Undulate ray
Raja undulata
What to check for
Location
English Channel
Technical location
Atlantic, Northeast, English Channel (East), English Channel (West)
Caught by
Net (gill or fixed)
Rating summary
For more information about this rating please visit: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/undulate-ray.php
Technical consultation summary
Improved stocks - not a species that is common in Cornish waters but trawlers catch them off shore and when fishing further up the english channel. Populations have recovered from low point between 2007 and 2015. MMO have made the decision to keep catch limits the same, despite this good stock assessment.
How we worked out this Rating
Undulate ray in the English channel has recovered to a healthy state and is currently being harvested sustainably.This stock was considered depleted since 1990 until a landing ban was implemented in 2009, which lasted until 2014. It has since recovered to a healthy state. Following a stock benchmark in 2022, relative biomass (B) is 1.77. This is above MSY Btrigger and Blim.Fishing pressure (F) on the stock in 2021 was 0.32. This is below FMSY.ICES advises that when the MSY approach is applied, landings in 2023 and 2024 should be no more than 4836 and 4675 tonnes respectively. This advice is substantially larger than the previous advice (2552 tonnes in 2021 and 2022), and it is not known how this will impact discard rates for undulate ray.Small fish (less than 50cm) were not included in the ICES assessment. Any catch of small undulate ray would continue to be discarded with a high survival rate.The stock of undulate ray in the English Channel is managed under a specific total allowable catch (TAC). This precautionary TAC has been increasing since 2016 as the biomass index has increased, however, it is constraining and results in high discard rates (e.g. 93% discarded in 2021). From 2019-2022, the TAC has been 234 tonnes for 7.d and 7.e combined. In 2023, the TAC increased substantially to 3,192 tonnes (with a 33% allocation to the UK).
For more information about this rating please visit: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/undulate-ray.php
For more information about this rating please visit: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/undulate-ray.php
References
For more information about this rating please visit: https://www.cornwallgoodseafoodguide.org.uk/fish-guide/undulate-ray.php
Sustainable swaps
Learn more about how we calculate our sustainability ratings.
How our ratings work