• A Baltic View description
  • AA Baltic photic benthos View description
    • AA.A Baltic photic rock and boulders View description
      • AA.A1 Baltic photic rock and boulders characterized by macroscopic epibenthic biotic structures View description
        • AA.A1C Baltic photic rock and boulders characterized by perennial algae View description
          • AA.A1C1 Baltic photic rock and boulders dominated by Fucus spp. View description
          • AA.A1C2 Baltic photic rock and boulders dominated by perennial non-filamentous corticated red algae View description
          • AA.A1C3 Baltic photic rock and boulders dominated by perennial foliose red algae View description
          • AA.A1C4 Baltic photic rock and boulders dominated by kelp View description
          • AA.A1C5 Baltic photic rock and boulders dominated by perennial filamentous algae View description
        • AA.A1D Baltic photic rock and boulders characterized by aquatic moss View description
        • AA.A1E Baltic photic rock and boulders characterized by epibenthic bivalves View description
          • AA.A1E1 Baltic photic rock and boulders dominated by Mytilidae View description
          • AA.A1E2 Baltic photic rock and boulders dominated by zebra mussel (Dreissena polymorpha) View description
        • AA.A1F Baltic photic rock and boulders characterized by epibenthic chordates View description
          • AA.A1F1 Baltic photic rock and boulders dominated by sea squirts (Ascidiacea) View description
        • AA.A1G Baltic photic rock and boulders characterized by epibenthic cnidarians View description
          • AA.A1G1 Baltic photic rock and boulders dominated by hydroids (Hydrozoa) View description
        • AA.A1H Baltic photic rock and boulders characterized by epibenthic moss animals (Bryozoa) View description
          • AA.A1H1 Baltic photic rock and boulders dominated by crustose moss animals (Electra crustulenta) View description
          • AA.A1H2 Baltic photic rock and boulders dominated by erect moss animals (Flustra foliacea) View description
        • AA.A1I Baltic photic rock and boulders characterized by epibenthic crustaceans View description
          • AA.A1I1 Baltic photic rock and boulders dominated by barnacles (Balanidae) View description
        • AA.A1J Baltic photic rock and boulders characterized by epibenthic sponges (Porifera) View description
        • AA.A1R Baltic photic rock and boulders characterized by soft crustose algae View description
        • AA.A1S Baltic photic rock and boulders characterized by annual algae View description
        • AA.A1V Baltic photic rock and boulders characterized by mixed epibenthic macrocommunity View description
      • AA.A2 Baltic photic rock and boulders characterized by sparse macroscopic epibenthic structures View description
        • AA.A2W Baltic photic rock and boulders characterized by microphytobenthic organisms and grazing snails View description
        • AA.A2T Baltic photic rock and boulders characterized by sparse epibenthic macrocommunity View description
      • AA.A4 Baltic photic rock and boulders characterized by no macroscopic biotic structures View description
        • AA.A4U Baltic photic rock and boulders characterized by no macrocommunity View description
    • AA.B Baltic photic hard clay View description
      • AA.B1 Baltic photic hard clay characterized by macroscopic epibenthic biotic structures View description
        • AA.B1E Baltic photic hard clay characterized by epibenthic bivalves View description
          • AA.B1E1 Baltic photic hard clay dominated by Mytilidae View description
        • AA.B1V Baltic photic hard clay characterized by mixed epibenthic macrocommunity View description
      • AA.B2 Baltic photic hard clay characterized by sparse macroscopic epibenthic biotic structures View description
        • AA.B2T Baltic photic hard clay characterized by sparse epibenthic macrocommunity View description
      • AA.B4 Baltic photic hard clay characterized by no macroscopic biotic structures View description
        • AA.B4U Baltic photic hard clay characterized by no macrocommunity View description
    • AA.C Baltic photic marl (marlstone rock) View description
    • AA.D Baltic photic maerl beds View description
    • AA.E Baltic photic shell gravel View description
      • AA.E1 Baltic photic shell gravel characterized by macroscopic epibenthic biotic structures View description
        • AA.E1C Baltic photic shell gravel characterized by perennial algae View description
          • AA.E1C4 Baltic photic shell gravel dominated by kelp View description
        • AA.E1E Baltic photic shell gravel characterized by epibenthic bivalves View description
          • AA.E1E1 Baltic photic shell gravel dominated by Mytilidae View description
        • AA.E1F Baltic photic shell gravel characterized by epibenthic chordates View description
          • AA.E1F1 Baltic photic shell gravel dominated by vase tunicate (Ciona intestinalis) View description
        • AA.E1V Baltic photic shell gravel characterized by mixed epibenthic macrocommunity View description
      • AA.E2 Baltic photic shell gravel characterized by sparse macroscopic epibenthic biotic structures View description
        • AA.E2T Baltic photic shell gravel characterized by sparse epibenthic macrocommunity View description
      • AA.E3 Baltic photic shell gravel characterized by macroscopic infaunal biotic structures View description
        • AA.E3X Baltic photic shell gravel characterized by mixed infaunal macrocommunity in coarse and well-sorted shells and shell fragments View description
        • AA.E3Y Baltic photic shell gravel characterized by mixed infaunal macrocommunity in fine sand-like shell fragments View description
      • AA.E4 Baltic photic shell gravel characterized by no macroscopic biotic structures View description
        • AA.E4U Baltic photic shell gravel characterized by no macrocommunity View description
    • AA.F Baltic photic ferromanganese concretion bottoms View description
    • AA.G Baltic photic peat bottoms View description
    • AA.H Baltic photic muddy sediment View description
      • AA.H1 Baltic photic muddy sediment characterized by macroscopic epibenthic biotic structures View description
        • AA.H1A Baltic photic muddy sediment characterized by emergent vegetation View description
          • AA.H1A1 Baltic photic muddy sediment dominated by common reed (Phragmites australis) View description
          • AA.H1A2 Baltic photic muddy sediment dominated by sedges (Cyperaceae) View description
        • AA.H1B Baltic photic muddy sediment characterized by submerged rooted plants View description
          • AA.H1B1 Baltic photic muddy sediment dominated by pondweed (Potamogeton perfoliatus and/or Stuckenia pactinata) View description
          • AA.H1B2 Baltic photic muddy sediment dominated by Zannichellia spp. and/or Ruppia spp. and/or Zostera noltii View description
          • AA.H1B3 Baltic photic muddy sediment dominated by watermillfoil (Myriophyllum spicatum and/or Myriophyllum sibiricum) View description
          • AA.H1B4 Baltic photic muddy sediment dominated by Charales View description
          • AA.H1B5 Baltic photic muddy sediment dominated by spiny naiad (Najas marina) View description
          • AA.H1B6 Baltic photic muddy sediment dominated by Ranunculus spp. View description
          • AA.H1B7 Baltic photic muddy sediment dominated by common eelgrass (Zostera marina) View description
          • AA.H1B8 Baltic photic muddy sediment dominated by spikerush (Eleocharis spp.) View description
        • AA.H1E Baltic photic muddy sediment characterized by epibenthic bivalves View description
          • AA.H1E1 Baltic photic muddy sediment dominated by Mytilidae View description
          • AA.H1E2 Baltic photic muddy sediment dominated by zebra mussel (Dreissena polymorpha) View description
          • AA.H1E3 Baltic photic muddy sediment dominated by valve snails (Valvata spp.) View description
        • AA.H1K Baltic photic muddy sediment characterized by epibenthic polychaetes View description
          • AA.H1K1 Baltic photic muddy sediment dominated by tube building polychaetes View description
        • AA.H1Q Baltic photic muddy sediment characterized by stable aggregations of unattached perennial vegetation View description
          • AA.H1Q1 Baltic photic muddy sediment dominated by stable aggregations of unattached Fucus spp. (typical form) View description
          • AA.H1Q2 Baltic photic muddy sediment dominated by stable aggregations of unattached Fucus spp. (dwarf form) View description
          • AA.H1Q3 Baltic photic muddy sediment dominated by stable aggregations of unattached Furcellaria lumbricalis View description
          • AA.H1Q4 Baltic photic muddy sediment dominated by stable aggregations of unattached rigid hornwort (Ceratuphyllum demersum) View description
          • AA.H1Q5 Baltic photic muddy sediment dominated by stable aggregations of unattached lake ball (Aegagropila linnaei) View description
        • AA.H1S Baltic photic muddy sediment characterized by annual algae View description
          • AA.H1S3 Baltic photic muddy sediment dominated by Vaucheria spp. View description
        • AA.H1V Baltic photic rock and boulders characterized by mixed epibenthic macrocommunity View description
      • AA.H3 Baltic photic muddy sediment characterized by macroscopic infaunal biotic structures View description
        • AA.H3L Baltic photic muddy sediment characterized by infaunal bivalves View description
          • AA.H3L1 Baltic photic muddy sediment dominated by Baltic tellin (Macoma balthica) View description
          • AA.H3L3 Baltic photic muddy sediment dominated by ocean quahog (Arctica islandica) View description
          • AA.H3L6 Baltic photic muddy sediment dominated by Unionidae View description
          • AA.H3L8 Baltic photic muddy sediment dominated by Abra spp. View description
        • AA.H3M Baltic photic muddy sediment characterized by infaunal polychaetes View description
          • AA.H3M3 Baltic photic muddy sediment dominated by Marenzelleria spp. View description
          • AA.H3M5 Baltic photic muddy sediment dominated by various opportunistic polychaetes View description
        • AA.H3N Baltic photic muddy sediment characterized by infaunal crustaceans View description
          • AA.H3N1 Baltic photic muddy sediment dominated by Monoporeia afiinis View description
          • AA.H3N2 Baltic photic muddy sediment dominated by mud shrimps (Corophiidae) View description
        • AA.H3O Baltic photic muddy sediment characterized by infaunal echinoderms View description
        • AA.H3P Baltic photic muddy sediment characterized by infaunal insect larvae View description
          • AA.H3P1 Baltic photic muddy sediment dominated by midge larvae (Chironomidae) View description
      • AA.H4 Baltic photic muddy sediment characterized by no macroscopic biotic structures View description
        • AA.H4U Baltic photic muddy sediment characterized by no macrocommunity View description
          • AA.H4U1 Baltic photic muddy sediment dominated by meiofauna (Oligochaeta, Ostracoda, Nematoda) View description
    • AA.I Baltic photic coarse sediment View description
      • AA.I1 Baltic photic coarse sediment characterized by macroscopic epibenthic biotic structures View description
        • AA.I1A Baltic photic coarse sediment characterized by emergent vegetation View description
          • AA.I1A1 Baltic photic coarse sediment dominated by common reed (Phragmites australis) View description
          • AA.I1A2 Baltic photic coarse sediment dominated by sedges (Cyperaceae) View description
        • AA.I1B Baltic photic coarse sediment characterized by submerged rooted plants View description
          • AA.I1B1 Baltic photic coarse sediment dominated by pondweed (Potamogeton perfoliatus and/or Stuckenia pectinata) View description
          • AA.I1B2 Baltic photic coarse sediment dominated by Zannichellia spp. and/or Ruppia spp. and/or Zostera noltii View description
          • AA.I1B4 Baltic photic coarse sediment dominated by Charales View description
          • AA.I1B6 Baltic photic coarse sediment dominated by Ranunculus spp. View description
          • AA.I1B7 Baltic photic coarse sediment dominated by common eelgrass (Zostera marina) View description
        • AA.I1C Baltic photic coarse sediment characterized by perennial algae View description
          • AA.I1C1 Baltic photic coarse sediment dominated by Fucus spp. View description
          • AA.I1C2 Baltic photic coarse sediment dominated by perennial non-filamentous corticated red algae View description
          • AA.I1C3 Baltic photic coarse sediment dominated by perennial foliose red algae View description
          • AA.I1C4 Baltic photic coarse sediment dominated by kelp View description
          • AA.I1C5 Baltic photic coarse sediment dominated by perennial filamentous algae View description
        • AA.I1D Baltic photic coarse sediment characterized by aquatic moss View description
        • AA.I1E Baltic photic coarse sediment characterized by epibenthic bivalves View description
          • AA.I1E1 Baltic photic coarse sediment dominated by Mytilidae View description
        • AA.I1Q Baltic photic coarse sediment characterized by stable aggregations of unattached perennial vegetation View description
          • AA.I1Q1 Baltic photic coarse sediment dominated by stable aggregations of unattached Fucus spp. (typical form) View description
          • AA.I1Q2 Baltic photic coarse sediment dominated by stable aggregations of unattached Fucus spp. (dwarf form) View description
          • AA.I1Q3 Baltic photic coarse sediment dominated by stable aggregations of unattached Furcellaria lumbricalis View description
        • AA.I1S Baltic photic coarse sediment characterized by annual algae View description
          • AA.I1S2 Baltic photic coarse sediment dominated by Chorda filum and/or Halosiphon tomentosus View description
        • AA.I1V Baltic photic coarse sediment characterized by mixed epibenthic macrocommunity View description
      • AA.I2 Baltic photic coarse sediment characterized by sparse macroscopic epibenthic biotic structures View description
        • AA.I2W Baltic photic coarse sediment characterized by microphytobenthic organisms and grazing snails View description
        • AA.I2T Baltic photic coarse sediment characterized by sparse epibenthic macrocommunity View description
      • AA.I3 Baltic photic coarse sediment characterized by macroscopic infaunal biotic structures View description
        • AA.I3L Baltic photic coarse sediment characterized by infaunal bivalves View description
          • AA.I3L10 Baltic photic coarse sediment dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp. Spisula spp. View description
          • AA.I3L11 Baltic photic coarse sediment dominated by multiple infaunal polychaete species including Ophelia spp. View description
        • AA.I3M Baltic photic coarse sediment characterized by infaunal polychaetes View description
        • AA.I3N Baltic photic coarse sediment characterized by infaunal crustaceans View description
          • AA.I3N3 Baltic photic coarse sediment dominated by sand digger shrimp (Bathyporeia pilosa) View description
        • AA.I3O Baltic photic coarse sediment characterized by infaunal echinoderms View description
        • AA.I3P Baltic photic coarse sediment characterized by infaunal insect larvae View description
      • AA.I4 Baltic photic coarse sediment characterized by no macroscopic biotic structures View description
        • AA.I4U Baltic photic coarse sediment characterized by no macrocommunity View description
    • AA.J Baltic photic sand View description
      • AA.J1 Baltic photic sand characterized by macroscopic epibenthic biotic structures View description
        • AA.J1A Baltic photic sand characterized by emergent vegetation View description
          • AA.J1A1 Baltic photic sand dominated by common reed (Phragmites australis) View description
          • AA.J1A2 Baltic photic sand dominated by sedges (Cyperaceae) View description
        • AA.J1B Baltic photic sand characterized by submerged rooted plants View description
          • AA.J1B1 Baltic photic sand dominated by pondweed (Potamogeton perfoliatus and/or Stuckenia pactinata) View description
          • AA.J1B2 Baltic photic sand dominated by Zannichellia spp. and/or Ruppia spp. and/or Zostera noltii View description
          • AA.J1B3 Baltic photic sand dominated by watermillfoil (Myriophyllum spicatum and/or Myriophyllum sibiricum) View description
          • AA.J1B4 Baltic photic sand dominated by Charales View description
          • AA.J1B5 Baltic photic sand dominated by spiny naiad (Najas marina) View description
          • AA.J1B6 Baltic photic sand dominated by Ranunculus spp. View description
          • AA.J1B7 Baltic photic sand dominated by common eelgrass (Zostera marina) View description
          • AA.J1B8 Baltic photic sand dominated by spikerush (Eleocharis spp.) View description
        • AA.J1E Baltic photic sand characterized by epibenthic bivalves View description
          • AA.J1E1 Baltic photic sand dominated by Mytilidae View description
        • AA.J1Q Baltic photic sand characterized by stable aggregations of unattached perennial vegetation View description
          • AA.J1Q1 Baltic photic sand dominated by stable aggregations of unattached Fucus spp. (typical form) View description
          • AA.J1Q2 Baltic photic sand dominated by stable aggregations of unattached Fucus spp. (dwarf form) View description
          • AA.J1Q3 Baltic photic sand dominated by stable aggregations of unattached Furcellaria lumbricalis View description
        • AA.J1S Baltic photic sand characterized by annual algae View description
          • AA.J1S2 Baltic photic sand dominated by Chorda filum and/or Halosiphon tomentosus View description
          • AA.J1S3 Baltic photic sand dominated by Vaucheria spp. View description
        • AA.J1V Baltic photic sand characterized by mixed epibenthic macrocommunity View description
      • AA.J3 Baltic photic sand characterized by macroscopic infaunal biotic structures View description
        • AA.J3L Baltic photic sand characterized by infaunal bivalves View description
          • AA.J3L1 Baltic photic sand dominated by Baltic tellin (Macoma balthica) View description
          • AA.J3L2 Baltic photic sand dominated by cockles (Cerastoderma spp.) View description
          • AA.J3L3 Baltic photic sand dominated by ocean quahog (Arctica islandica) View description
          • AA.J3L4 Baltic photic sand dominated by sand gaper (Mya arenaria) View description
          • AA.J3L9 Baltic photic sand dominated by multiple infaunal bivalve species: Cerastoderma spp., Mya arenaria, Astarte borealis, Arctica islandica, Macoma balthica View description
          • AA.J1L10 Baltic photic sand dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp., Spisula spp. View description
          • AA.J3L11 Baltic photic sand dominated by multiple infaunal polychaete species including Ophelia spp. and/or Travisia forbesii View description
        • AA.J3M Baltic photic sand characterized by infaunal polychaetes View description
          • AA.J3M2 Baltic photic sand dominated by lugworms (Arenicola marina) View description
          • AA.J3M4 Baltic photic sand dominated by multiple infaunal polychaete species: Pygospio elegans, Marenzelleria spp., Hediste diversicolor View description
        • AA.J3N Baltic photic sand characterized by infaunal crustaceans View description
          • AA.J3N3 Baltic photic sand dominated by sand digger shrimp (Bathyporeia pilosa) View description
        • AA.J3PBaltic photic sand characterized by infaunal insect larvae View description
          • AA.J3P1 Baltic photic sand dominated by midge larvae (Chironomidae) View description
      • AA.J4 Baltic photic sand characterized by no macroscopic biotic structures View description
        • AA.J4U Baltic photic sand characterized by no macrocommunity View description
    • AA.K Baltic photic hard anthropogenically created substrates View description
    • AA.L Baltic photic soft anthropogenically created substrates View description
    • AA.M Baltic photic mixed substrate View description
      • AA.M1 Baltic photic mixed substrate characterized by macroscopic epibenthic biotic structures View description
        • AA.M1A Baltic photic mixed substrate characterized by emergent vegetation View description
          • AA.M1A1 Baltic photic mixed substrate dominated by common reed (Phragmites australis) View description
          • AA.M1A2 Baltic photic mixed substrate dominated by sedges(Cyperaceae) View description
        • AA.M1B Baltic photic mixed substrate characterized by submerged rooted plants View description
          • AA.M1B1 Baltic photic mixed substrate dominated by pondweed (Potamogeton perfoliatus and/or Stuckenia pactinata) View description
          • AA.M1B2 Baltic photic mixed substrate dominated by Zannichellia spp. and/or Ruppia spp. and/or Zostera noltii View description
          • AA.M1B3 Baltic photic mixed substrate dominated by watermillfoil (Myriophyllum spicatum and/or Myriophyllum sibiricum) View description
          • AA.M1B4 Baltic photic mixed substrate dominated by Charales View description
          • AA.M1B7 Baltic photic mixed substrate dominated by common eelgrass (Zostera marina) View description
        • AA.M1C Baltic photic mixed substrate characterized by perennial algae View description
          • AA.M1C1 Baltic photic mixed substrate dominated by Fucus spp. View description
          • AA.M1C2 Baltic photic mixed substrate dominated by perennial non-filamentous corticated red algae View description
          • AA.M1C3 Baltic photic mixed substrate dominated by foliose red algae View description
          • AA.M1C4 Baltic photic mixed substrate dominated by kelp View description
          • AA.M1C5 Baltic photic mixed substrate dominated by perennial filamentous algae View description
        • AA.M1D Baltic photic mixed substrate characterized by aquatic moss View description
        • AA.M1E Baltic photic mixed substrate characterized by epibenthic bivalves View description
          • AA.M1E1 Baltic photic mixed substrate dominated by Mytilidae View description
          • AA.M1E2 Baltic photic mixed substrate dominated by zebra mussel (Dreissena polymorpha) View description
        • AA.M1F Baltic photic mixed substrate characterized by epibenthic chordates View description
          • AA.M1F1 Baltic photic mixed substrate dominated by sea squirts (Ascidiacea) View description
        • AA.M1G Baltic photic mixed substrate characterized by epibenthic cnidarians View description
          • AA.M1G1 Baltic photic mixed substrate dominated by hydroids (Hydrozoa) View description
        • AA.M1H Baltic photic mixed substrate characterized by epibenthic moss animals (Bryozoa) View description
          • AA.M1H1 Baltic photic mixed substrate dominated by crustose moss animals (Electra crustulenta) View description
          • AA.M1H2 Baltic photic mixed substrate dominated by erect moss animals (Flustra foliacea) View description
        • AA.M1I Baltic photic mixed substrate characterized by epibenthic crustaceans View description
          • AA.M1I1 Baltic photic mixed substrate dominated by barnacles (Balanidae) View description
        • AA.M1J Baltic photic mixed substrate characterized by epibenthic sponges (Porifera) View description
        • AA.M1Q Baltic photic mixed substrate characterized by stable aggregations of unattached perennial vegetation View description
          • AA.M1Q1 Baltic photic mixed substrate dominated by stable aggregations of unattached Fucus spp. (typical form) View description
          • AA.M1Q2 Baltic photic mixed substrate dominated by stable aggregations of unattached Fucus spp. (dwarf form) View description
          • AA.M1Q3 Baltic photic mixed substrate dominated by stable aggregations of unattached Furcellaria lumbricalis View description
          • AA.M1Q4 Baltic photic mixed substrate dominated by stable aggregations of unattached rigid hornwort (Ceratophyllum demersun) View description
        • AA.M1R Baltic photic mixed substrate characterized by soft crustose algae View description
        • AA.M1S Baltic photic mixed substrate characterized by annual algae View description
          • AA.M1S1 Baltic photic mixed substrate dominated by filamnetous annual algae View description
          • AA.M1S2 Baltic photic mixed substrate dominated by Chorda filum and/or Halosiphon tomentosus View description
        • AA.M1V Baltic photic mixed substrate characterized by mixed epibenthic macrocommunity View description
      • AA.M2 Baltic photic mixed substrate characterized by sparse macroscopic epibenthic biotic structures View description
        • AA.M2W Baltic photic mixed substrate characterized by microphytobenthic organisms and grazing snails View description
        • AA.M2T Baltic photic mixed substrate characterized by sparse epibenthic macrocommunity View description
      • AA.M4 Baltic photic mixed substrate characterized by no macroscopic biotic structures View description
        • AA.M4U Baltic photic mixed substrate characterized by no macrocommunity View description
  • AB Baltic aphotic benthos View description
    • AB.A Baltic aphotic rock and boulders View description
      • AB.A1 Baltic aphotic rock and boulders characterized by macroscopic epibenthic biotic structures View description
        • AB.A1E Baltic aphotic rock and boulders characterized by epebenthic bivalves View description
          • AB.A1E1 Baltic aphotic rock and boulders dominated by Mytilidae View description
        • AB.A1F Baltic aphotic rock and boulders characterized by epibenthic chordates View description
          • AB.A1F1 Baltic aphotic rock and boulders dominated by sea squirts (Ascidiacea) View description
        • AB.A1G Baltic aphotic rock and boulders characterized by epibenthic cnidarians View description
          • AB.A1G1 Baltic aphotic rock and boulders dominated by hydroids (Hyrdozoa) View description
          • AB.A1G2 Baltic aphotic rock and boulders dominated by sea anemones (Actiniaria) View description
          • AB.A1G3 Baltic aphotic rock and boulders dominated by stone corals (Scleractinida) View description
          • AB.A1G4 Baltic aphotic rock and boulders dominated by soft corals (Alcyonacea) View description
        • AB.A1H Baltic aphotic rock and boulders characterized by epibenthic moss animals (Bryozoa) View description
          • AB.A1H1 Baltic aphotic rock and boulders dominated by corticated moss animals (Electra crustulenta) View description
          • AB.A1H2 Baltic aphotic rock and boulders dominated by erect moss animals (Flustra foliacea) View description
        • AB.A1I Baltic aphotic rock and boulders characterized by epibenthic crustacea View description
          • AB.A1I1 Baltic aphotic rock and boulders dominated by barnacles (Balanidae) View description
        • AB.A1J Baltic aphotic rock and boulders characterized by epibenthic sponges (Porifera) View description
        • AB.A1V Baltic aphotic rock and boulders characterized by mixed epibenthic macrocommunity View description
      • AB.A2 Baltic aphotic rock and boulders characterized by sparse macroscopic epibenthic structures View description
        • AB.A2T Baltic aphotic rock and boulders characterized by sparse epibenthic macrocommunity View description
      • AB.A4 Baltic aphotic rock and boulders characterized by no macroscopic biotic structures View description
        • AB.A4U Baltic aphotic rock and boulders characterized by no macrocommunity View description
    • AB.B Baltic aphotic hard clay View description
      • AB.B1 Baltic aphotic hard clay characterized by macroscopic epibenthic biotic structures View description
        • AB.B1E Baltic aphotic hard clay characterized by epibenthic bivalves View description
          • AB.B1E1 Baltic aphotic hard clay dominated by Mytilidae View description
          • AB.B1E4 Baltic aphotic hard clay dominated by Astarte spp. View description
        • AB.B1V Baltic aphotic hard clay characterized by mixed epibenthic macrocommunity View description
      • AB.B2 Baltic aphotic hard clay characterized by sparse macroscopic epibenthic biotic structures View description
        • AB.B2T Baltic aphotic hard clay characterized by sparse epibenthic macrocommunity View description
      • AB.B4 Baltic aphotic hard clay characterized by no macroscopic biotic structures View description
        • AB.B4U Baltic aphotic hard clay characterized by no macrocommunity View description
    • AB.C Baltic aphotic marl (marlstone rock) View description
    • AB.D Baltic aphotic maerl beds View description
    • AB.E Baltic aphotic shell gravel View description
      • AB.E1 Baltic aphotic shell gravel characterized by macroscopic epibenthic biotic structures View description
        • AB.E1E Baltic aphotic shell gravel characterized by epibenthic bivalves View description
          • AB.E1E1 Baltic aphotic shell gravel dominated by Mytilidae View description
        • AB.E1F Baltic aphotic shell gravel characterized by epibenthic chordates View description
          • AB.E1F1 Baltic aphotic shell gravel dominated by vase tunicate (Ciona intestinalis) View description
        • AB.E1V Baltic aphotic shell gravel characterized by mixed epibenthic macrocommunity View description
      • AB.E2 Baltic aphotic shell gravel characterized by sparse macroscopic epibenthic biotic structures View description
        • AB.E2T Baltic aphotic shell gravel characterized by sparse epibenthic macrocommunity View description
      • AB.E3 Baltic aphotic shell gravel characterized by macroscopic infaunal biotic structures View description
        • AB.E3X Baltic aphotic shell gravel characterized by mixed infaunal macrocommunity in coarse and well-sorted shells and shell fragments View description
        • AB.E3Y Baltic aphotic shell gravel characterized by mixed infaunal macrocommunity in fine sand-like shell fragments View description
      • AB.E4 Baltic aphotic shell gravel characterized by no macroscopic biotic structures View description
        • AB.E4U Baltic aphotic shell gravel characterized by no macrocommunity View description
    • AB.F Baltic aphotic ferromanganese concretion bottoms View description
    • AB.G Baltic aphotic peat bottoms View description
    • AB.H Baltic aphotic muddy sediment View description
      • AB.H1 Baltic aphotic muddy sediment characterized by macroscopic epibenthic biotic structures View description
        • AB.H1E Baltic aphotic muddy sediment characterized by epibenthic bivalves View description
          • AB.H1E1 Baltic aphotic muddy sediment dominated by Mytilidae View description
        • AB.H1G Baltic aphotic muddy sediment characterized by epibenthic cnidarians View description
        • AB.H1I Baltic aphotic muddy sediment characterized by epibenthic crustacea View description
          • AB.H1I2 Baltic aphotic muddy sediment dominated by Haploops spp. View description
        • AB.H1K Baltic aphotic muddy sediment characterized by epibenthic polychaetes View description
          • AB.H1K1 Baltic aphotic muddy sediment dominated by tube-building polychaetes View description/label>
        • AB.H1V Baltic aphotic muddy sediment characterized by mixed epibenthic macrocommunity View description
      • AB.H2 Baltic aphotic muddy sediment characterized by sparse macroscopic epibenthic biotic structures View description
        • AB.H2TBaltic aphotic muddy sediment characterized by sparse epibenthic macrocommunity View description
          • AB.H2T1 Baltic aphotic muddy sediment dominated by seapens View description
      • AB.H3 Baltic aphotic muddy sediment characterized by macroscopic infaunal biotic structures View description
        • AB.H3L Baltic aphotic muddy sediment characterized by infaunal bivalves View description
          • AB.H3L1 Baltic aphotic muddy sediment dominated by Baltic tellin (Macoma balthica) View description
          • AB.H3L3 Baltic aphotic muddy sediment dominated by ocean quahog (Arctica islandica) View description
          • AB.H3L5 Baltic aphotic muddy sediment dominated by Astarte spp. View description
        • AB.H3M Baltic aphotic muddy sediment characterized by infaunal polychaetes View description
          • AB.H3M1 Baltic aphotic muddy sediment dominated by Scoloplos (Scoloplos) armige View description
          • AB.H3M3 Baltic aphotic muddy sediment dominated by Marenzelleria spp. View description
          • AB.H3M5 Baltic aphotic muddy sediment dominated by various opportunistic polychaetes View description
        • AB.H3N Baltic aphotic muddy sediment characterized by infaunal crustaceans View description
          • AB.H3N1 Baltic aphotic muddy sediment dominated by Monoporeia affinis and/or Pontoporeia femorata View description
        • AB.H3O Baltic aphotic muddy sediment characterized by infaunal echinoderms View description
          • AB.H3O1 Baltic aphotic muddy sediment dominated by Amphiura filiformis View description
          • AB.H3O2 Baltic aphotic muddy sediment dominated by Brissopsis lyrifera and Amphiura chiajei View description
        • AB.H3P Baltic aphotic muddy sediment characterized by infaunal insect larvae View description
          • AB.H3P1 Baltic aphotic muddy sediment dominated by midge larvae (Chironomidae) View description
      • AB.H4 Baltic aphotic muddy sediment characterized by no macroscopic biotic structures View description
        • AB.H4U Baltic aphotic muddy sediment characterized by no macrocommunity View description
          • AB.H4U1 Baltic aphotic muddy sediment dominated by meiofauna View description
          • AB.H4U2 Baltic aphotic muddy sediment dominated by anaerobic organisms View description
    • AB.I Baltic aphotic coarse sediment View description
      • AB.I1 Baltic aphotic coarse sediment characterized by macroscopic epibenthic biotic structures View description
        • AB.I1E Baltic aphotic coarse sediment characterized by epibenthic bivalves View description
          • AB.I1E1 Baltic aphotic coarse sediment dominated by Mytilidae View description
        • AB.I1V Baltic aphotic coarse sediment characterized by mixed epibenthic macrocommunity View description
      • AB.I3 Baltic aphotic coarse sediment characterized by macroscopic infaunal biotic structures View description
        • AB.I3L Baltic aphotic coarse sediment characterized by infaunal bivalves View description
          • AB.I3L10 Baltic aphotic coarse sediment dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp., Spisula spp. View description
          • AB.I3L11 Baltic aphotic coarse sediment dominated by multiple infaunal polychaete species including Ophelia spp. View description
        • AB.I3M Baltic aphotic coarse sediment characterized by infaunal polychaetes View description
        • AB.I3N Baltic aphotic coarse sediment characterized by infaunal crustaceans View description
          • AB.I3N3 Baltic aphotic coarse sediment dominated by sand digger shrimp (Bathyporeia pilosa) View description
      • AB.I4 Baltic aphotic coarse sediment characterized by no macroscopic biotic structures View description
        • AB.I4U Baltic aphotic coarse sediment characterized by no macrocommunity View description
          • AB.I4U1 Baltic aphotic coarse sediment dominated by meiofauna View description
    • AB.J Baltic aphotic sand View description
      • AB.J1 Baltic aphotic sand characterized by macroscopic epibenthic biotic structures View description
        • AB.J1E Baltic aphotic sand characterized by epibenthic bivalves View description
          • AB.J1E1 Baltic aphotic sand dominated by Mytilidae View description
        • AB.J1V Baltic aphotic sand characterized by mixed epibenthic macrocommunity View description
      • AB.J3 Baltic aphotic sand characterized by macroscopic infaunal biotic structures View description
        • AB.J3L Baltic aphotic sand characterized by infaunal bivalves View description
          • AB.J3L1 Baltic aphotic sand dominated by Baltic tellin (Macoma balthica) View description
          • AB.J3L3 Baltic aphotic sand dominated by ocean quahog (Arctica islandica) View description
          • AB.J3L4 Baltic aphotic sand dominated by sand gaper (Mya arenaria) View description
          • AB.J3L7 Baltic aphotic sand dominated by striped venus (Chamelea gallina) View description
          • AB.J3L9 Baltic aphotic sand dominated by multiple infaunal bivalve species: Cerastoderma spp., Mya arenaria, Astarte borealis, Arctica islandica, Macoma balthica View description
          • AB.J3L10 Baltic aphotic sand dominated by multiple infaunal bivalve species: Macoma calcarea, Mya truncata, Astarte spp., Spisula spp. View description
          • AB.J3L11 Baltic aphotic sand dominated by multiple infaunal polychaete species including Ophelia spp. and Travisia forbesii View description
        • AB.J3M Baltic aphotic sand characterized by infaunal polychaetes View description
          • AB.J3M4 Baltic aphotic sand dominated by multiple infaunal polychaete species: Pygospio elegans, Marenzelleria spp., Hediste diversicolor View description
        • AB.J3N Baltic aphotic sand characterized by infaunal crustacea View description
          • AB.J3N1 Baltic aphotic sand dominated by Monoporeia affinis and Saduria entomon View description
        • AB.J3P Baltic aphotic sand characterized by infaunal insect larvae View description
          • AB.J3P1 Baltic aphotic sand dominated by midge larvae (Chironomidae) View description
      • AB.J4 Baltic aphotic sand characterized by no macroscopic biotic structures View description
        • AB.J4U Baltic aphotic sand characterized by no macrocommunity View description
          • AB.J4U1 Baltic aphotic sand dominated by meiofauna View description
    • AB.K Baltic aphotic hard anthropogenically created substrates View description
    • AB.L Baltic aphotic soft anthropogenically created substrates View description
    • AB.M Baltic aphotic mixed substrate View description
      • AB.M1 Baltic aphotic mixed substrate characterized by macroscopic epibenthic biotic structures View description
        • AB.M1E Baltic aphotic mixed substrate characterized by epibenthic bivalves View description
          • AB.M1E1 Baltic aphotic mixed substrate dominated by Mytilidae View description
        • AB.M1F Baltic aphotic mixed substrate characterized by epibenthic chordates View description
          • AB.M1F1 Baltic aphotic mixed substrate dominated by sea squirts (Ascidiacea) View description
        • AB.M1G Baltic aphotic mixed substrate characterized by epibenthic cnidarians View description
          • AB.M1G1 Baltic aphotic mixed substrate dominated by hydroids (Hydrozoa) View description
          • AB.M1G2 Baltic aphotic mixed substrate dominated by sea anemones (Actiniaria) View description
          • AB.M1G3 Baltic aphotic mixed substrate dominated by stone corals (Scleractinida) View description
          • AB.M1G4 Baltic aphotic mixed substrate dominated by soft corals (Alcyonacea) View description
        • AB.M1H Baltic aphotic mixed substrate characterized by epibenthic moss animals (Bryozoa) View description
          • AB.M1H1 Baltic aphotic mixed substrate dominated by corticated moss animals (Electra crustulenta) View description
          • AB.M1H2 Baltic aphotic mixed substrate dominated by erect moss animals (Flustra foliacea) View description
        • AB.M1I Baltic aphotic mixed substrate characterized by epibenthic crustacea View description
          • AB.M1I1 Baltic aphotic mixed substrate dominated by barnacles (Balanidae) View description
        • AB.M1J Baltic aphotic mixed substrate characterized by epibenthic sponges (Porifera) View description
        • AB.M1V Baltic aphotic mixed substrate characterized by mixed epibenthic macrocommunity View description
      • AB.M2 Baltic aphotic mixed substrate characterized by sparse macroscopic epibenthic biotic structures View description
        • AB.M2T Baltic aphotic mixed substrate characterized by sparse epibenthic macrocommunity View description
      • AB.M4 Baltic aphotic mixed substrate characterized by no macroscopic biotic structures View description
        • AB.M4U Baltic aphotic mixed substrate characterized by no macrocommunity View description
  • AC Baltic Sea seasonal ice View description
  • AD Baltic Sea photic pelagic View description
    • AD.N Baltic Sea photic pelagic above halocline View description
      • AD.N5 Baltic Sea photic pelagic above halocline oxic View description
  • AE Baltic Sea aphotic pelagic View description
    • AE.N Baltic Sea aphotic pelagic above halocline View description
      • AE.N5 Baltic Sea aphotic pelagic above halocline oxic View description
      • AE.N6 Baltic Sea aphotic pelagic above halocline anoxic View description
    • AE.O Baltic Sea aphotic pelagic below halocline View description
      • AE.O5 Baltic Sea aphotic pelagic below halocline oxic View description
      • AE.O6 Baltic Sea aphotic pelagic below halocline anoxic View description