| Observationsplats: |
År: from - to |
Kön: | Fiskeutrustning: | Frequency type: |
| Eider, Schleswig-Holstein (North Sea , German Bight ), Germany | 1988 - 1988 | unsexed/mixed | trawls | absolute number measured |
| Northern Helgoland (North Sea , German Bight ), Germany | 1988 - 1988 | unsexed/mixed | trawls | absolute number measured |
| Northern Ostfriesland (North Sea , German Bight ), Germany | 1988 - 1988 | unsexed/mixed | trawls | absolute number measured |
| Western Baltic, Eckernförder Bay, Stoller Grund, Germany | 2002 - 2002 | unsexed/mixed | Trawl, 20 mm co | absolute number measured |