| URI | 
          http://vocab.nerc.ac.uk/collection/M23/current/AB/ | 
        
        
          | Within Vocab | 
          HELCOM 'HUB' Underwater Biotope and Habitat Classification System | 
        
        
        
          | Alternative Labels | 
          
            
              AB
            
           | 
        
        
        
          | Definition | 
          The habitat 'Baltic aphotic benthos' as defined under the HELCOM HUB classification system. For more information visit 'http://helcom.fi/baltic-sea-trends/biodiversity/helcom-hub/hub/ab'. | 
        
        
          | Date | 
          2019-01-21T18:25:15 | 
        
        
        
          
            
              | Identifier | 
              SDN:M23::AB | 
            
          
            
              | Note | 
              accepted | 
            
          
        
        
          
            
              | Has Current Version | 
              1 | 
            
          
        
        
        
        
          
            
              | version | 
              1 | 
            
          
        
        
        
        
            
            | 
              Same As
             | 
			
				
						
							
								HELCOM HUB 
							 | 
							https://maps.helcom.fi/website/HUB/PDF/ab.pdf | Mapping: 337247 | 
						
							
						
				
				
					
				
			
        
            
            | 
              Broader
             | 
			
				
					
					
                M23:A | 
                Baltic | 
            Mapping: 1583723 | 
					
				
				
					
				
			
        
            
            | 
              Narrower
             | 
			
				
					
					
						
							| 
                 | M23:AB-H2T | 
                aphotic muddy sediment characterized by sparse epibenthic macrocommunity | 
            Mapping: 1582195 | 
						
					
						
							| 
                 | M23:AB-I | 
                Baltic aphotic coarse sediment | 
            Mapping: 1582215 | 
						
					
						
							| 
                 | M23:AB-I1E | 
                Baltic aphotic coarse sediment characterized by epibenthic bivalves | 
            Mapping: 1582910 | 
						
					
						
							| 
                 | M23:AB-I3L | 
                Baltic aphotic coarse sediment characterized by infaunal bivalves | 
            Mapping: 1582219 | 
						
					
						
							| 
                 | M23:AB-I3N | 
                Baltic aphotic coarse sediment characterized by infaunal crustaceans | 
            Mapping: 1582222 | 
						
					
						
							| 
                 | M23:AB-I3M | 
                Baltic aphotic coarse sediment characterized by infaunal polychaetes | 
            Mapping: 1582221 | 
						
					
						
							| 
                 | M23:AB-I1 | 
                Baltic aphotic coarse sediment characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582216 | 
						
					
						
							| 
                 | M23:AB-I3 | 
                Baltic aphotic coarse sediment characterized by macroscopic infaunal biotic structures | 
            Mapping: 1582911 | 
						
					
						
							| 
                 | M23:AB-I1V | 
                Baltic aphotic coarse sediment characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582218 | 
						
					
						
							| 
                 | M23:AB-I4U | 
                Baltic aphotic coarse sediment characterized by no macrocommunity | 
            Mapping: 1582224 | 
						
					
						
							| 
                 | M23:AB-I4 | 
                Baltic aphotic coarse sediment characterized by no macroscopic biotic structures | 
            Mapping: 1582223 | 
						
					
						
							| 
                 | M23:AB-I4U1 | 
                Baltic aphotic coarse sediment dominated by meiofauna | 
            Mapping: 1582914 | 
						
					
						
							| 
                 | M23:AB-I3L10 | 
                Baltic aphotic coarse sediment dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp., Spisula spp. | 
            Mapping: 1582220 | 
						
					
						
							| 
                 | M23:AB-I3L11 | 
                Baltic aphotic coarse sediment dominated by multiple infaunal polychaete species including Ophelia spp. | 
            Mapping: 1582912 | 
						
					
						
							| 
                 | M23:AB-I1E1 | 
                Baltic aphotic coarse sediment dominated by Mytilidae | 
            Mapping: 1582217 | 
						
					
						
							| 
                 | M23:AB-I3N3 | 
                Baltic aphotic coarse sediment dominated by sand digger shrimp (Bathyporeia pilosa) | 
            Mapping: 1582913 | 
						
					
						
							| 
                 | M23:AB-F | 
                Baltic aphotic ferromanganese concretion bottoms | 
            Mapping: 1582182 | 
						
					
						
							| 
                 | M23:AB-K | 
                Baltic aphotic hard anthropogenically created substrates | 
            Mapping: 1582922 | 
						
					
						
							| 
                 | M23:AB-B | 
                Baltic aphotic hard clay | 
            Mapping: 1582156 | 
						
					
						
							| 
                 | M23:AB-B1E | 
                Baltic aphotic hard clay characterized by epibenthic bivalves | 
            Mapping: 1582158 | 
						
					
						
							| 
                 | M23:AB-B1 | 
                Baltic aphotic hard clay characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582157 | 
						
					
						
							| 
                 | M23:AB-B1V | 
                Baltic aphotic hard clay characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582161 | 
						
					
						
							| 
                 | M23:AB-B4U | 
                Baltic aphotic hard clay characterized by no macrocommunity | 
            Mapping: 1582165 | 
						
					
						
							| 
                 | M23:AB-B4 | 
                Baltic aphotic hard clay characterized by no macroscopic biotic structures | 
            Mapping: 1582164 | 
						
					
						
							| 
                 | M23:AB-B2T | 
                Baltic aphotic hard clay characterized by sparse epibenthic macrocommunity | 
            Mapping: 1582163 | 
						
					
						
							| 
                 | M23:AB-B2 | 
                Baltic aphotic hard clay characterized by sparse macroscopic epibenthic biotic structures | 
            Mapping: 1582162 | 
						
					
						
							| 
                 | M23:AB-B1E4 | 
                Baltic aphotic hard clay dominated by Astarte spp. | 
            Mapping: 1582160 | 
						
					
						
							| 
                 | M23:AB-B1E1 | 
                Baltic aphotic hard clay dominated by Mytilidae | 
            Mapping: 1582159 | 
						
					
						
							| 
                 | M23:AB-D | 
                Baltic aphotic maerl beds | 
            Mapping: 1582167 | 
						
					
						
							| 
                 | M23:AB-C | 
                Baltic aphotic marl (marlstone rock) | 
            Mapping: 1582166 | 
						
					
						
							| 
                 | M23:AB-M | 
                Baltic aphotic mixed substrate | 
            Mapping: 1582923 | 
						
					
						
							| 
                 | M23:AB-M1E | 
                Baltic aphotic mixed substrate characterized by epibenthic bivalves | 
            Mapping: 1582243 | 
						
					
						
							| 
                 | M23:AB-M1F | 
                Baltic aphotic mixed substrate characterized by epibenthic chordates | 
            Mapping: 1582244 | 
						
					
						
							| 
                 | M23:AB-M1G | 
                Baltic aphotic mixed substrate characterized by epibenthic cnidarians | 
            Mapping: 1582925 | 
						
					
						
							| 
                 | M23:AB-M1I | 
                Baltic aphotic mixed substrate characterized by epibenthic crustacea | 
            Mapping: 1582251 | 
						
					
						
							| 
                 | M23:AB-M1H | 
                Baltic aphotic mixed substrate characterized by epibenthic moss animals (Bryozoa) | 
            Mapping: 1582249 | 
						
					
						
							| 
                 | M23:AB-M1J | 
                Baltic aphotic mixed substrate characterized by epibenthic sponges (Porifera) | 
            Mapping: 1582252 | 
						
					
						
							| 
                 | M23:AB-M1 | 
                Baltic aphotic mixed substrate characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582242 | 
						
					
						
							| 
                 | M23:AB-M1V | 
                Baltic aphotic mixed substrate characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582253 | 
						
					
						
							| 
                 | M23:AB-M4U | 
                Baltic aphotic mixed substrate characterized by no macrocommunity | 
            Mapping: 1582930 | 
						
					
						
							| 
                 | M23:AB-M4 | 
                Baltic aphotic mixed substrate characterized by no macroscopic biotic structures | 
            Mapping: 1582255 | 
						
					
						
							| 
                 | M23:AB-M2T | 
                Baltic aphotic mixed substrate characterized by sparse epibenthic macrocommunity | 
            Mapping: 1582254 | 
						
					
						
							| 
                 | M23:AB-M2 | 
                Baltic aphotic mixed substrate characterized by sparse macroscopic epibenthic biotic structures | 
            Mapping: 1582929 | 
						
					
						
							| 
                 | M23:AB-M1I1 | 
                Baltic aphotic mixed substrate dominated by barnacles (Balanidae) | 
            Mapping: 1582928 | 
						
					
						
							| 
                 | M23:AB-M1H1 | 
                Baltic aphotic mixed substrate dominated by corticated moss animals (Electra crustulenta) | 
            Mapping: 1582927 | 
						
					
						
							| 
                 | M23:AB-M1H2 | 
                Baltic aphotic mixed substrate dominated by erect moss animals (Flustra foliacea) | 
            Mapping: 1582250 | 
						
					
						
							| 
                 | M23:AB-M1G1 | 
                Baltic aphotic mixed substrate dominated by hydroids (Hydrozoa) | 
            Mapping: 1582246 | 
						
					
						
							| 
                 | M23:AB-M1E1 | 
                Baltic aphotic mixed substrate dominated by Mytilidae | 
            Mapping: 1582924 | 
						
					
						
							| 
                 | M23:AB-M1G2 | 
                Baltic aphotic mixed substrate dominated by sea anemones (Actiniaria) | 
            Mapping: 1582247 | 
						
					
						
							| 
                 | M23:AB-M1F1 | 
                Baltic aphotic mixed substrate dominated by sea squirts (Ascidiacea) | 
            Mapping: 1582245 | 
						
					
						
							| 
                 | M23:AB-M1G4 | 
                Baltic aphotic mixed substrate dominated by soft corals (Alcyonacea) | 
            Mapping: 1582248 | 
						
					
						
							| 
                 | M23:AB-M1G3 | 
                Baltic aphotic mixed substrate dominated by stone corals (Scleractinida) | 
            Mapping: 1582926 | 
						
					
						
							| 
                 | M23:AB-H | 
                Baltic aphotic muddy sediment | 
            Mapping: 1582184 | 
						
					
						
							| 
                 | M23:AB-H1E | 
                Baltic aphotic muddy sediment characterized by epibenthic bivalves | 
            Mapping: 1582186 | 
						
					
						
							| 
                 | M23:AB-H1G | 
                Baltic aphotic muddy sediment characterized by epibenthic cnidarians | 
            Mapping: 1582188 | 
						
					
						
							| 
                 | M23:AB-H1I | 
                Baltic aphotic muddy sediment characterized by epibenthic crustacea | 
            Mapping: 1582189 | 
						
					
						
							| 
                 | M23:AB-H1K | 
                Baltic aphotic muddy sediment characterized by epibenthic polychaetes | 
            Mapping: 1582191 | 
						
					
						
							| 
                 | M23:AB-H3L | 
                Baltic aphotic muddy sediment characterized by infaunal bivalves | 
            Mapping: 1582198 | 
						
					
						
							| 
                 | M23:AB-H3N | 
                Baltic aphotic muddy sediment characterized by infaunal crustaceans | 
            Mapping: 1582206 | 
						
					
						
							| 
                 | M23:AB-H3O | 
                Baltic aphotic muddy sediment characterized by infaunal echinoderms | 
            Mapping: 1582208 | 
						
					
						
							| 
                 | M23:AB-H3P | 
                Baltic aphotic muddy sediment characterized by infaunal insect larvae | 
            Mapping: 1582211 | 
						
					
						
							| 
                 | M23:AB-H3M | 
                Baltic aphotic muddy sediment characterized by infaunal polychaetes | 
            Mapping: 1582202 | 
						
					
						
							| 
                 | M23:AB-H1 | 
                Baltic aphotic muddy sediment characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582185 | 
						
					
						
							| 
                 | M23:AB-H3 | 
                Baltic aphotic muddy sediment characterized by macroscopic infaunal biotic structures | 
            Mapping: 1582197 | 
						
					
						
							| 
                 | M23:AB-H1V | 
                Baltic aphotic muddy sediment characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582193 | 
						
					
						
							| 
                 | M23:AB-H4U | 
                Baltic aphotic muddy sediment characterized by no macrocommunity | 
            Mapping: 1582213 | 
						
					
						
							| 
                 | M23:AB-H4 | 
                Baltic aphotic muddy sediment characterized by no macroscopic biotic structures | 
            Mapping: 1582908 | 
						
					
						
							| 
                 | M23:AB-H2 | 
                Baltic aphotic muddy sediment characterized by sparse macroscopic epibenthic biotic structures | 
            Mapping: 1582194 | 
						
					
						
							| 
                 | M23:AB-H3O1 | 
                Baltic aphotic muddy sediment dominated by Amphiura filiformis | 
            Mapping: 1582209 | 
						
					
						
							| 
                 | M23:AB-H4U2 | 
                Baltic aphotic muddy sediment dominated by anaerobic organisms | 
            Mapping: 1582909 | 
						
					
						
							| 
                 | M23:AB-H3L5 | 
                Baltic aphotic muddy sediment dominated by Astarte spp. | 
            Mapping: 1582201 | 
						
					
						
							| 
                 | M23:AB-H3L1 | 
                Baltic aphotic muddy sediment dominated by Baltic tellin (Macoma balthica) | 
            Mapping: 1582199 | 
						
					
						
							| 
                 | M23:AB-H3O2 | 
                Baltic aphotic muddy sediment dominated by Brissopsis lyrifera and Amphiura chiajei | 
            Mapping: 1582210 | 
						
					
						
							| 
                 | M23:AB-H1I2 | 
                Baltic aphotic muddy sediment dominated by Haploops spp. | 
            Mapping: 1582190 | 
						
					
						
							| 
                 | M23:AB-H3M3 | 
                Baltic aphotic muddy sediment dominated by Marenzelleria spp. | 
            Mapping: 1582204 | 
						
					
						
							| 
                 | M23:AB-H4U1 | 
                Baltic aphotic muddy sediment dominated by meiofauna | 
            Mapping: 1582214 | 
						
					
						
							| 
                 | M23:AB-H3P1 | 
                Baltic aphotic muddy sediment dominated by midge larvae (Chironomidae) | 
            Mapping: 1582212 | 
						
					
						
							| 
                 | M23:AB-H3N1 | 
                Baltic aphotic muddy sediment dominated by Monoporeia affinis and/or Pontoporeia femorata | 
            Mapping: 1582207 | 
						
					
						
							| 
                 | M23:AB-H1E1 | 
                Baltic aphotic muddy sediment dominated by Mytilidae | 
            Mapping: 1582187 | 
						
					
						
							| 
                 | M23:AB-H3L3 | 
                Baltic aphotic muddy sediment dominated by ocean quahog (Arctica islandica) | 
            Mapping: 1582200 | 
						
					
						
							| 
                 | M23:AB-H3M1 | 
                Baltic aphotic muddy sediment dominated by Scoloplos (Scoloplos) armige | 
            Mapping: 1582203 | 
						
					
						
							| 
                 | M23:AB-H2T1 | 
                Baltic aphotic muddy sediment dominated by seapens | 
            Mapping: 1582196 | 
						
					
						
							| 
                 | M23:AB-H1K1 | 
                Baltic aphotic muddy sediment dominated by tube-building polychaetes | 
            Mapping: 1582192 | 
						
					
						
							| 
                 | M23:AB-H3M5 | 
                Baltic aphotic muddy sediment dominated by various opportunistic polychaetes | 
            Mapping: 1582205 | 
						
					
						
							| 
                 | M23:AB-G | 
                Baltic aphotic peat bottoms | 
            Mapping: 1582183 | 
						
					
						
							| 
                 | M23:AB-A | 
                Baltic aphotic rock and boulders | 
            Mapping: 1582136 | 
						
					
						
							| 
                 | M23:AB-A1E | 
                Baltic aphotic rock and boulders characterized by epebenthic bivalves | 
            Mapping: 1582907 | 
						
					
						
							| 
                 | M23:AB-A1F | 
                Baltic aphotic rock and boulders characterized by epibenthic chordates | 
            Mapping: 1582138 | 
						
					
						
							| 
                 | M23:AB-A1G | 
                Baltic aphotic rock and boulders characterized by epibenthic cnidarians | 
            Mapping: 1582140 | 
						
					
						
							| 
                 | M23:AB-A1I | 
                Baltic aphotic rock and boulders characterized by epibenthic crustacea | 
            Mapping: 1582148 | 
						
					
						
							| 
                 | M23:AB-A1H | 
                Baltic aphotic rock and boulders characterized by epibenthic moss animals (Bryozoa) | 
            Mapping: 1582145 | 
						
					
						
							| 
                 | M23:AB-A1J | 
                Baltic aphotic rock and boulders characterized by epibenthic sponges (Porifera) | 
            Mapping: 1582150 | 
						
					
						
							| 
                 | M23:AB-A1 | 
                Baltic aphotic rock and boulders characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582906 | 
						
					
						
							| 
                 | M23:AB-A1V | 
                Baltic aphotic rock and boulders characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582151 | 
						
					
						
							| 
                 | M23:AB-A4U | 
                Baltic aphotic rock and boulders characterized by no macrocommunity | 
            Mapping: 1582155 | 
						
					
						
							| 
                 | M23:AB-A4 | 
                Baltic aphotic rock and boulders characterized by no macroscopic biotic structures | 
            Mapping: 1582154 | 
						
					
						
							| 
                 | M23:AB-A2T | 
                Baltic aphotic rock and boulders characterized by sparse epibenthic macrocommunity | 
            Mapping: 1582153 | 
						
					
						
							| 
                 | M23:AB-A2 | 
                Baltic aphotic rock and boulders characterized by sparse macroscopic epibenthic structures | 
            Mapping: 1582152 | 
						
					
						
							| 
                 | M23:AB-A1I1 | 
                Baltic aphotic rock and boulders dominated by barnacles (Balanidae) | 
            Mapping: 1582149 | 
						
					
						
							| 
                 | M23:AB-A1H1 | 
                Baltic aphotic rock and boulders dominated by corticated moss animals (Electra crustulenta) | 
            Mapping: 1582146 | 
						
					
						
							| 
                 | M23:AB-A1H2 | 
                Baltic aphotic rock and boulders dominated by erect moss animals (Flustra foliacea) | 
            Mapping: 1582147 | 
						
					
						
							| 
                 | M23:AB-A1G1 | 
                Baltic aphotic rock and boulders dominated by hydroids (Hyrdozoa) | 
            Mapping: 1582141 | 
						
					
						
							| 
                 | M23:AB-A1E1 | 
                Baltic aphotic rock and boulders dominated by Mytilidae | 
            Mapping: 1582137 | 
						
					
						
							| 
                 | M23:AB-A1G2 | 
                Baltic aphotic rock and boulders dominated by sea anemones (Actiniaria) | 
            Mapping: 1582142 | 
						
					
						
							| 
                 | M23:AB-A1F1 | 
                Baltic aphotic rock and boulders dominated by sea squirts (Ascidiacea) | 
            Mapping: 1582139 | 
						
					
						
							| 
                 | M23:AB-A1G4 | 
                Baltic aphotic rock and boulders dominated by soft corals (Alcyonacea) | 
            Mapping: 1582144 | 
						
					
						
							| 
                 | M23:AB-A1G3 | 
                Baltic aphotic rock and boulders dominated by stone corals (Scleractinida) | 
            Mapping: 1582143 | 
						
					
						
							| 
                 | M23:AB-J | 
                Baltic aphotic sand | 
            Mapping: 1582225 | 
						
					
						
							| 
                 | M23:AB-J1E | 
                Baltic aphotic sand characterized by epibenthic bivalves | 
            Mapping: 1582915 | 
						
					
						
							| 
                 | M23:AB-J3L | 
                Baltic aphotic sand characterized by infaunal bivalves | 
            Mapping: 1582229 | 
						
					
						
							| 
                 | M23:AB-J3N | 
                Baltic aphotic sand characterized by infaunal crustacea | 
            Mapping: 1582236 | 
						
					
						
							| 
                 | M23:AB-J3P | 
                Baltic aphotic sand characterized by infaunal insect larvae | 
            Mapping: 1582237 | 
						
					
						
							| 
                 | M23:AB-J3M | 
                Baltic aphotic sand characterized by infaunal polychaetes | 
            Mapping: 1582919 | 
						
					
						
							| 
                 | M23:AB-J1 | 
                Baltic aphotic sand characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582226 | 
						
					
						
							| 
                 | M23:AB-J3 | 
                Baltic aphotic sand characterized by macroscopic infaunal biotic structures | 
            Mapping: 1582916 | 
						
					
						
							| 
                 | M23:AB-J1V | 
                Baltic aphotic sand characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582228 | 
						
					
						
							| 
                 | M23:AB-J4U | 
                Baltic aphotic sand characterized by no macrocommunity | 
            Mapping: 1582239 | 
						
					
						
							| 
                 | M23:AB-J4 | 
                Baltic aphotic sand characterized by no macroscopic biotic structures | 
            Mapping: 1582921 | 
						
					
						
							| 
                 | M23:AB-J3L1 | 
                Baltic aphotic sand dominated by Baltic tellin (Macoma balthica) | 
            Mapping: 1582230 | 
						
					
						
							| 
                 | M23:AB-J4U1 | 
                Baltic aphotic sand dominated by meiofauna | 
            Mapping: 1582240 | 
						
					
						
							| 
                 | M23:AB-J3P1 | 
                Baltic aphotic sand dominated by midge larvae (Chironomidae) | 
            Mapping: 1582238 | 
						
					
						
							| 
                 | M23:AB-J3N1 | 
                Baltic aphotic sand dominated by Monoporeia affinis and Saduria entomon | 
            Mapping: 1582920 | 
						
					
						
							| 
                 | M23:AB-J3L9 | 
                Baltic aphotic sand dominated by multiple infaunal bivalve species: Cerastoderma spp., Mya arenaria, Astarte borealis, Arctica islandica, Macoma balthica | 
            Mapping: 1582234 | 
						
					
						
							| 
                 | M23:AB-J3L10 | 
                Baltic aphotic sand dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp., Spisula spp. | 
            Mapping: 1582917 | 
						
					
						
							| 
                 | M23:AB-J3L11 | 
                Baltic aphotic sand dominated by multiple infaunal polychaete species including Ophelia spp. and Travisia forbesii | 
            Mapping: 1582231 | 
						
					
						
							| 
                 | M23:AB-J3M4 | 
                Baltic aphotic sand dominated by multiple infaunal polychaete species: Pygospio elegans, Marenzelleria spp., Hediste diversicolor | 
            Mapping: 1582235 | 
						
					
						
							| 
                 | M23:AB-J1E1 | 
                Baltic aphotic sand dominated by Mytilidae | 
            Mapping: 1582227 | 
						
					
						
							| 
                 | M23:AB-J3L3 | 
                Baltic aphotic sand dominated by ocean quahog (Arctica islandica) | 
            Mapping: 1582232 | 
						
					
						
							| 
                 | M23:AB-J3L4 | 
                Baltic aphotic sand dominated by sand gaper (Mya arenaria) | 
            Mapping: 1582918 | 
						
					
						
							| 
                 | M23:AB-J3L7 | 
                Baltic aphotic sand dominated by striped venus (Chamelea gallina) | 
            Mapping: 1582233 | 
						
					
						
							| 
                 | M23:AB-E | 
                Baltic aphotic shell gravel | 
            Mapping: 1582168 | 
						
					
						
							| 
                 | M23:AB-E1E | 
                Baltic aphotic shell gravel characterized by epibenthic bivalves | 
            Mapping: 1582170 | 
						
					
						
							| 
                 | M23:AB-E1F | 
                Baltic aphotic shell gravel characterized by epibenthic chordates | 
            Mapping: 1582172 | 
						
					
						
							| 
                 | M23:AB-E1 | 
                Baltic aphotic shell gravel characterized by macroscopic epibenthic biotic structures | 
            Mapping: 1582169 | 
						
					
						
							| 
                 | M23:AB-E3 | 
                Baltic aphotic shell gravel characterized by macroscopic infaunal biotic structures | 
            Mapping: 1582177 | 
						
					
						
							| 
                 | M23:AB-E1V | 
                Baltic aphotic shell gravel characterized by mixed epibenthic macrocommunity | 
            Mapping: 1582174 | 
						
					
						
							| 
                 | M23:AB-E3X | 
                Baltic aphotic shell gravel characterized by mixed infaunal macrocommunity in coarse and well-sorted shells and shell fragments | 
            Mapping: 1582178 | 
						
					
						
							| 
                 | M23:AB-E3Y | 
                Baltic aphotic shell gravel characterized by mixed infaunal macrocommunity in fine sand-like shell fragments | 
            Mapping: 1582179 | 
						
					
						
							| 
                 | M23:AB-E4U | 
                Baltic aphotic shell gravel characterized by no macrocommunity | 
            Mapping: 1582181 | 
						
					
						
							| 
                 | M23:AB-E4 | 
                Baltic aphotic shell gravel characterized by no macroscopic biotic structures | 
            Mapping: 1582180 | 
						
					
						
							| 
                 | M23:AB-E2T | 
                Baltic aphotic shell gravel characterized by sparse epibenthic macrocommunity | 
            Mapping: 1582176 | 
						
					
						
							| 
                 | M23:AB-E2 | 
                Baltic aphotic shell gravel characterized by sparse macroscopic epibenthic biotic structures | 
            Mapping: 1582175 | 
						
					
						
							| 
                 | M23:AB-E1E1 | 
                Baltic aphotic shell gravel dominated by Mytilidae | 
            Mapping: 1582171 | 
						
					
						
							| 
                 | M23:AB-E1F1 | 
                Baltic aphotic shell gravel dominated by vase tunicate (Ciona intestinalis) | 
            Mapping: 1582173 | 
						
					
						
							| 
                 | M23:AB-L | 
                Baltic aphotic soft anthropogenically created substrates | 
            Mapping: 1582241 |