Real Time Closures in the North Sea

Last checked on:
11 July 2025
Published on:
17 April 2024

If too many juvenile fish of a species have been caught, we can implement a Real Time Closure (RTC) of an area of the North Sea. This means the area is closed for 21 days for certain fishing activities. We do this to protect fish stocks.

When do we implement an RTC?

A European control agency determines if too many juvenile fish have been caught. This agency does this by checking the catch of the last haul on board a fishing vessel. If they find too many juvenile fish, they report this to us. We then close the area where the inspection took place for 21 days. 

Fish species

We implement an RTC if too many juvenile cod, haddock, saithe and whiting have been caught in one haul. This applies to all fishing gear, except for:

  • pelagic trawls, purse seines, driftnets and jiggers targeting herring, mackerel, and horse mackerel
  • pots
  • scallop dredges
  • gillnets

Closed areas

From 12 July 2025 at 0:00 hours UTC the area RTC_NL_2_2025 will be closed. From 1 August 2025 at 23:59 hours UTC this area will be open again.

Real Time Closures in fisheries zone ICES- 27.4.b

In the table and letter below you will find more information on which RTC's are currently in place. We have also sent the letter to the fishing industry.

RTC_NL_2_2025
Closed from 12 July 2025 from 00:00 UTC
until 1 August 2025 at 23:59 UTC
1. 53°40’4 N 3°39’59 E
2. 53°40’4 N 3°51’53 E
3. 53°32’59 N 3°51’53 E
4. 53°32’59 N 3°39’59 E
And back to position 1

When are there too many juvenile fish in a haul?

  • if more than 10% of the total of the 4 species is juvenile (in weight);
  • if more than 7,5% of the fish (in weight) is juvenile, when more than 75% of the 4 species consists of cod.

Fish are juvenile when they are smaller than the sizes below:

Species Size
Cod Smaller than 35 cm
Haddock Smaller than 30 cm
Saithe Smaller than 35 cm
Whiting Smaller than 27 cm

Rules RTC areas

When we implement an RTC, the area is closed. This means you cannot fish there for 21 days. Except for when you use the following fishing gear:

  • pelagic trawls, purse seines, driftnets and jiggers targeting herring, mackerel, and horse mackerel
  • pots
  • scallop dredges
  • gillnets

Do you fish with other fishing gear within the RTC? Then, you are in violation for fishing in a closed area. The Netherlands Food and Consumer Product Safety Authority (Nederlandse Voedsel- en Warenautoriteit, NVWA) supervises and enforces this. 

Laws and regulations

Read about RTC in the Commission Regulation (EU) No 724/2010.

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