Bycatch

ByCatch > Advice 2025





2025 ICES Advice on bycatch of endangered, threatened and protected (ETP) species of marine mammals, seabirds, marine turtles and selected fish species of bycatch relevance.

For details, see ICES, 2025. Bycatch of endangered, threatened and protected (ETP) species of marine mammals, seabirds, marine turtles and selected fish species of bycatch relevance. In Report of the ICES Advisory Committee, 2025. ICES Advice 2025, byc.eu. https://doi.org/10.17895/ices.advice.30734714

For explanations of columns, see Annex 7 in the above document.



ICES ecoregion
Metier 4
Species
     
Common Name
Taxon
Priority
     




ICES ecoregion Metier L4 Taxon Species Common Name Reported Bycatch 2024 Fishing effort (DaS) 2024 monitoring effort (DaS) 2017-2024 BPUE BPUE lower CI BPUE upper CI Bycatch 2024 Bycatch lower CI Bycatch upper CI Priority
greater north sea lls seabirds morus bassanus northern gannet 10 4137.04 267.783 0.0465 0.0177 0.1217 192 74 504 No
greater north sea lls seabirds phalacrocorax aristotelis european shag 1 4137.04 267.783 0.0062 0.0003 0.1146 uncertain uncertain uncertain No
greater north sea lls seabirds rissa tridactyla black-legged kittiwake 1 4137.04 267.783 0.0037 0.0005 0.0265 uncertain uncertain uncertain No
greater north sea lls seabirds stercorarius skua great skua 1 4137.04 267.783 0.0037 0.0005 0.0265 uncertain uncertain uncertain No
greater north sea lls seabirds uria aalge common guillemot 1 4137.04 267.783 0.0062 0.0003 0.1146 uncertain uncertain uncertain No
greater north sea otb mammals delphinus delphis short-beaked common dolphin 8 111989 5311.87 0 0 0.01 NA NA NA Yes
greater north sea otb elasmobranchs dipturus intermedius common skate 211 111989 5992.53 0 0 0.1153 NA NA NA Yes
greater north sea otb mammals halichoerus grypus gray seal 3 111989 5311.87 0.0006 0.0002 0.0018 NA NA NA No
greater north sea otb seabirds morus bassanus northern gannet 8 111989 5311.87 0.0009 0.0003 0.0032 106 31 364 No
greater north sea otb seabirds phalacrocorax carbo great cormorant 3 111989 5311.87 0.0005 0.0001 0.0023 59 14 261 No
greater north sea otb mammals phoca vitulina harbor seal 1 111989 5311.87 0.0005 0 0.009 uncertain uncertain uncertain No
greater north sea otb mammals phocoena phocoena harbor porpoise 1 111989 5311.87 0.0001 0 0.0086 NA NA NA Yes
greater north sea otm mammals halichoerus grypus gray seal 26 8961.6 1106.77 0.0001 0 72536.9253 NA NA NA No
greater north sea otm seabirds larus argentatus herring gull 1 8961.6 1106.77 0.0013 0.0001 0.0196 uncertain uncertain uncertain No
greater north sea otm seabirds morus bassanus northern gannet 1 8961.6 1106.77 0.0009 0.0001 0.0071 uncertain uncertain uncertain No
greater north sea otm mammals phoca vitulina harbor seal 1 8961.6 1106.77 0.0013 0.0001 0.0198 uncertain uncertain uncertain No
greater north sea ott elasmobranchs dipturus intermedius common skate 25 13275.8 1885.79 0 0 0.0006 uncertain uncertain uncertain Yes
greater north sea ps mammals delphinus delphis short-beaked common dolphin 14 2137.41 97.6833 0.1227 0.0392 0.3841 262 84 821 Yes
greater north sea ps seabirds larus argentatus herring gull 8 2137.41 97.6833 0.0574 0.0129 0.2544 123 28 544 No
greater north sea ps seabirds larus marinus great black-backed gull 1 2137.41 97.6833 0.0102 0.0014 0.0727 22 4 156 No
greater north sea ptb elasmobranchs dipturus intermedius common skate 7 5222.58 722.822 0.023 0.0023 0.2282 120 13 1192 Yes
greater north sea ptb seabirds morus bassanus northern gannet 11 5222.58 721.822 0.0192 0.0022 0.1641 100 12 857 No
greater north sea sdn mammals phocoena phocoena harbor porpoise 1 2982.8 139.916 0.0072 0.0006 0.0924 uncertain uncertain uncertain Yes
greater north sea ssc elasmobranchs dipturus intermedius common skate 31 8307.14 311.853 0.0893 0.0076 1.0554 uncertain uncertain uncertain Yes
greater north sea tbb mammals halichoerus grypus gray seal 2 61067 1346.27 0.0015 0.0004 0.0059 91 23 363 No
greater north sea tbb seabirds morus bassanus northern gannet 11 61067 1346.27 0.0065 0.0009 0.0471 394 54 2874 No
greater north sea tbb mammals phoca vitulina harbor seal 1 61067 1346.27 0.001 0.0001 0.0157 uncertain uncertain uncertain No
greater north sea tbb mammals phocoena phocoena harbor porpoise 1 61067 1346.27 0.001 0.0001 0.0157 uncertain uncertain uncertain Yes
greater north sea tbb elasmobranchs squatina squatina angelshark 1 61067 2301.27 0 0 184.8366 uncertain uncertain uncertain Yes
celtic seas gnd elasmobranchs dipturus intermedius common skate 11 96.3618 85 0.0782 0.0034 1.7993 uncertain uncertain uncertain Yes
celtic seas gns mammals delphinus delphis short-beaked common dolphin 19 16231.6 1707.84 0.0084 0.001 0.069 NA NA NA Yes
celtic seas gns elasmobranchs dipturus intermedius common skate 15 16231.6 1951.84 0.0058 0.002 0.0164 94 33 266 Yes
celtic seas gns seabirds fulmarus glacialis northern fulmar 38 16231.6 1707.84 0 0 0.0008 NA NA NA No
celtic seas gns mammals halichoerus grypus gray seal 225 16231.6 1707.84 0.0175 0.0008 0.3922 NA NA NA No
celtic seas gns seabirds phalacrocorax carbo great cormorant 3 16231.6 1707.84 0.0021 0.0004 0.0107 34 7 174 No
celtic seas gns mammals phoca vitulina harbor seal 45 16231.6 1707.84 0 0 0.007 NA NA NA No
celtic seas gns mammals phocoena phocoena harbor porpoise 13 16231.6 1707.84 0.0012 0 0.6694 NA NA NA Yes
celtic seas gns elasmobranchs squatina squatina angelshark 3 16231.6 1951.84 0.0007 0.0001 0.0053 uncertain uncertain uncertain Yes
celtic seas gns seabirds uria aalge common guillemot 58 16231.6 1707.84 0.042 0.0159 0.1111 682 258 1804 No
celtic seas gtr mammals delphinus delphis short-beaked common dolphin 4 2931.1 512.738 0.017 0.0026 0.1101 50 8 323 Yes
celtic seas gtr elasmobranchs dipturus intermedius common skate 127 2931.1 527.738 0 0 0.0454 NA NA NA Yes
celtic seas gtr mammals grampus griseus risso's dolphin 1 2931.1 512.738 0.0019 0.0003 0.0138 uncertain uncertain uncertain No
celtic seas gtr mammals halichoerus grypus gray seal 180 2931.1 512.738 0.1688 0.0543 0.5251 NA NA NA No
celtic seas gtr mammals phocoena phocoena harbor porpoise 3 2931.1 512.738 0.0206 0.0031 0.1383 60 9 406 Yes
celtic seas gtr elasmobranchs squatina squatina angelshark 16 2931.1 527.738 0.0192 0.0068 0.0544 uncertain uncertain uncertain Yes
celtic seas lld turtles dermochelys coriacea leatherback turtle 3 2149 21 0.2706 0.0349 2.1 uncertain uncertain uncertain Yes
celtic seas lls seabirds fulmarus glacialis northern fulmar 160 9593.74 435.75 0.3854 0.0648 2.2942 uncertain uncertain uncertain No
celtic seas lls seabirds larus marinus great black-backed gull 2 9593.74 435.75 0.0052 0.0005 0.0505 uncertain uncertain uncertain No
celtic seas lls seabirds morus bassanus northern gannet 15 9593.74 435.75 0.0439 0.0135 0.1422 421 130 1364 No
celtic seas lls seabirds puffinus gravis greater shearwater 2 9593.74 435.75 0.0073 0.0005 0.1023 uncertain uncertain uncertain No
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