Scampi or langoustine

Nephrops norvegicus

4: OK - Needs improvement How we work out the ratings

What to check for

Location

Botney Cut to Silver Pit (FU 5)

Technical location

Atlantic, Northeast, North Sea (Central), North Sea (South)

Caught by

Bottom trawl (otter)

Certification

Fishery Improvement Project (FIP)

Rating summary

In Botney Cut to Silver Pit, scampi, often referred to as Nephrops or Norway lobster, is data limited. There is concern for the biomass, as the most recent stock information is no longer considered to be representative of the current abundance. There does not appear to be concern for fishing pressure. Catch limits don't match the stock area, meaning that there is a risk of overfishing. Catches and discards have historically have been too high, although they have declined in recent years. Management is not following scientific advice and is insufficient to prevent overexploitation. Almost all Norway lobster in this area are caught by otter trawling. Trawling for Norway lobster can have an impact on seabed habitats, particularly on mud which is subjected to high disturbance by fishing. Bycatch may also be of concern.Rating last updated: December 2023.

Technical consultation summary

In Botney Cut to Silver Pit, scampi, often referred to as Nephrops or Norway lobster, is data limited. The latest underwater TV (UWTV) survey to estimate abundance was undertaken in 2012 which showed that Nephrops density was relatively high, However, the large interannual variability in density that's seen in neighbouring functional units, such as FU 6, indicates that a single survey is insufficient to provide a reliable abundance estimate. As a result, ICES have downgraded this stock assessment to use landings data only. Therefore, there is concern for biomass as there is no biomass data available. Based on catch scenarios, ICES has calculated that the harvest rate is currently below the FMSY proxy. Catch has also been in line with the advice set by ICES and therefore, there is no concern for fishing pressure. Some management measures are in place. Catch limits don't match the stock area, meaning that there is a risk of overfishing. Catches and discards have historically have been too high, although they have declined in recent years. Management is not following scientific advice and is insufficient to prevent overexploitation. Trawling for Norway lobster can have an impact on seabed habitats, particularly on mud which is subjected to high disturbance by fishing. A 2023 OSPAR report showed that 87% of offshore circalittoral mud has been subjected to high disturbance, suggesting that this habitat has not been suitably protected in this fishery. Disturbance from trawl gear on the seabed, especially over long periods of time, is likely to affect the structure, species composition, and biodiversity of the burrowed mud community. Bycatch in trawls may also be of concern.

How we worked out this Rating

References

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Scampi or langoustine
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