EU request to ICES on the effect of increased quota flexibility in 2015–2016 on pelagic stocks
ICES response
The proposed flexibility for the pelagic stocks would, if utilized, result in reduced F in 2015. If fully utilized the transfer of fishing possibilities to 2016 would result in an increase in F in 2016 of a similar magnitude to the flexibility (approximately +20% or +30%). Thus it is expected that if ICES MSY advice is followed for 2015 and 2016, F would have a greater than 50% probability of being below FMSY in 2015 and a greater than 50% probability of being above FMSY in 2016. ICES considers that the mean F over the two years would be similar to the F resulting from 100% of each annual TAC being taken in its respective year. This is likely to have a slightly positive, but effectively negligible impact on precautionary biomass considerations defined by the probability of SSB < Blim in 2015 and 2016.
For Northeast Atlantic mackerel and blue whiting stocks, there are concerns that F is already too high and needs to be reduced. Although not taking quota in 2015 would reduce F in 2015, banking this excess quota and not accounting for it in setting fishing opportunities for 2016 may result in very high Fs in 2016, well above what is advised.
While a continued flexibility of 10% is unlikely to be of major concern, flexibilities of 20—30% carried forward over several years and not accounted for in the advice may be a problem if biomass is close to or below MSY Btrigger.
ICES has not provided MSY advice for Northeast Atlantic mackerel, blue whiting, North Sea horse mackerel, and herring west of Scotland and west of Ireland. For these stocks there are additional considerations given below
History
Published under the auspices of the following ICES Steering Group or Committee
- ACOM