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  • 1
    Type of Medium: Book
    Series Statement: ICES council meeting papers 1983(2)
    Language: Undetermined
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  • 2
    Publication Date: 2023-07-09
    Keywords: Abra alba; Abra prismatica; Ameira longipes; Ameira tenella; Ampelisca brevicornis; Ampelisca tenuicornis; Amphiascus minutus; Amphictene auricoma; Amphiura filiformis; Anaitides; Anaitides groenlandica; Anaitides maculata; Anobothrus gracilis; Anthozoa; Aonides oxycephala; Aonides paucibranchiata; Aphrodita aculeata; Apodopsyllus littoralis; Apodopsyllus sp.; Apodopsyllus spinipes; Arctica islandica; Arenocaris bifida; Arenopontia sp.; Arenosetella germanica; Arenosetella sp.; Atylus falcatus; Atylus swammerdamei; Bathyporeia elegans; Bathyporeia guilliamsoniana; Bathyporeia tenuipes; Bowerbankia; Bradya sp.; Branchiostoma lanceolatum; Callianassa subterranea; Canuella perplexa; Capitella capitata; Capitellidae; Caprella linearis; Cellaria fistulosa; Cerastoderma edule; Chaetoderma nitidulum; Chaetozone setosa; Chamelea gallina; Cnidaria; Cochlodesma praetenue; Copepoda; Corbula gibba; Corophium affine; Corystes cassivelaunus; Counting; Crisia eburnea; Cumopsis goodsiri; Cyclopina sp.; Cyclopinidae sp.; Cylichna cylindracea; Cylindropsyllus laevis; Cylindropsyllus remanei; Dactylopusia tisboides; Date/Time of event; DEPTH, sediment/rock; Diarthrodella secunda; Diastylis bradyi; Diastylis laevis; Diastylis lucifera; Diastylis rathkei; Diastylis rugosa; Diplocirrus glaucus; Dosinia exoleta; Dosinia lupinus; Echinocardium cordatum; Echinocyamus pusillus; Ectinosoma dentatum; Ectinosoma sp.; Ensis; Esola bulligera; Eteone flava; Eteone longa; Eteone spetsbergensis; Eudorella truncatula; Eudorellopsis deformis; Eulalia mustela; Eulalia viridis; Eumida sanguinea; Evansula pygmaea; Evansula sp.; Event label; Exogone hebes; Fabulina fabula; FHE_19870069; FHE238_073; FHE238_082; FHE238_091; FHE238_092; FHE238_101; FHE238_111; FHE238_112; FHE238_121; FHE238_122; FHE238_132; FHE238_133; FHE238_143; FHE238_144; FHE238_153; FHE238_154; FHE238_155; FHE238_164; FHE238_165; FHE238_174; FHE238_175; FHE238_176; FHE238, MarGIS_DANS_Label: ICES8586BSe_7; Friedrich Heincke; Gari fervensis; Gastrosaccus spinifer; Gastrotricha; Glycera alba; Glycera rouxi; Glycinde nordmanni; Goniada maculata; Goniadella bobrezkii; Goodallia triangularis; Halacarida; Halectinosoma herdmani; Halectinosoma propinquum; Halectinosoma sp.; Harmothoe; Harmothoe ljungmani; Harpinia pectinata; Hastigerella sp.; Hippomedon denticulatus; ICES 101; ICES 111; ICES 112; ICES 121; ICES 122; ICES 132; ICES 133; ICES 143; ICES 144; ICES 153; ICES 154; ICES 155; ICES 164; ICES 165; ICES 174; ICES 175; ICES 176; ICES 73; ICES 82; ICES 91; ICES 92; Interleptomesochra eulittoralis; Interleptomesochra sp.; Interleptomesochra tenuicornis; Intermedopsyllus intermedius; Iphinoe trispinosa; Isopoda; Kliopsyllus coelebs; Kliopsyllus constrictus; Kliopsyllus holsaticus; Kliopsyllus paraholsaticus; Kliopsyllus sp.; Lagis koreni; Lamprops fasciatus; Lanice conchilega; Laophonte cornuta; Laophonte elongata; Latitude of event; Leptastacus laticaudatus; Leptastacus sp.; Leptomesochra sp.; Leptopontia curvicauda; Leptopsyllus sp.; Liocarcinus holsatus; Longipedia coronata; Longipedia scotti; Longitude of event; Lunatia poliana; Macoma balthica; Mactra stultorum; Magelona; Megaluropus agilis; Metacyclopina brevisetosa; Minervella sp.; Moerella donacina; Monoculodes subnudus; Mya truncata; Myriochele; Mysella bidentata; Mysta barbata; Mytilus edulis; Nematoda; Nemertea; Neoamphitrite affinis; Nephtys caeca; Nephtys cirrosa; Nephtys hombergii; North Sea; Notomastus latericeus; Nucula nitidosa; Nuculoma tenuis; Oligochaeta; Ophelia borealis; Ophiothrix fragilis; Ophiura albida; Ophiura ophiura; Orbinia sertulata; Orchomene nana; Ostracoda; Owenia fusiformis; Paralaophonte brevirostris; Paraleptastacus espinulatus; Paraleptastacus holsaticus; Paraleptastacus sp.; Paraleptastacus spinicauda; Paramesochra helgolandica; Paramesochra mielkei; Paramesochridae sp.; Paramphiascopsis longirostris; Parevansula sp.; Philine scabra; Pholoe; Phoronis; Phoxocephalus holbolli; Pisione remota; Polychaeta; Polycirrus medusa; Polyphysia crassa; Pontocrates; Pontocrates altamarinus; Pontocrates longimanus; Proameira echinipes; Proameira sp.; Protodorvillea kefersteini; Protopsammotopa norvegica; Psammechinus miliaris; Psammotopa phyllosetosa; Pseudamphiascopsis herdmani; Pseudobradya beduina; Pseudobradya minor; Pseudobradya pulchella; Pseudoeulalia exigua; Pseudolaophonte spinosa; Pseudonychocamptus proximus; Pseudopolydora pulchra; Rhizothrix sp.; Sabellidae; Sample code/label; Scalibregma inflatum; Scolelepis bonnieri; Scoloplos armiger; Scopelocheirus hopei; Scottopsyllus minor; Sicameira leptoderma; Sicameira sp.; Sigalion mathildae; Sipunculida indeterminata; Sphaerosyllis tetralix; Spio filicornis; Spiophanes bombyx; Spisula elliptica; Spisula subtruncata; Stenhelia gibba; Stenocaris kliei; Stenocaris minuta; Stenocaris sp.; Sthenelais limicola; Tanaidacea; Tardigrada; Tellimya ferruginosa; Timoclea ovata; Tisbe sp.; Travisia forbesii; Turbellaria; Typhlamphiascus confusus; Typhlamphiascus sp.; Upogebia deltaura; Urothoe poseidonis; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 7161 data points
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  • 3
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Aldridge, John N; Bergman, Magda J N; Bolam, T; Craeymeersch, Johan A; Degraer, Steven; Duineveld, Gerard C A; Eggleton, J D; Goethals, P; Hillewaert, H; Irion, G; Kershaw, P J; Kröncke, Ingrid; Lavaleye, Marc; Mason, Claire; Rachor, Eike; Rees, H L; Reiss, Henning; Rumohr, Heye; Schratzberger, M; Smith, R; Vanden Berghe, E; van Hoey, G; Vincx, Magda; Willems, W (2007): Structure and dynamics of the North Sea benthos. Ices Cooperative Research Report-Rapport des Recherches Collectives, 288, 265 pp, hdl:10013/epic.34479.d001
    Publication Date: 2023-08-05
    Description: In 1986 participants of the Benthos Ecology Working Group of ICES conducted a synoptic mapping of the infauna of the southern and central North Sea. Together with a mapping of the infauna of the northern North Sea by Eleftheriou and Basford (1989, doi:10.1017/S0025315400049158) this provides the database for the description of the benthic infauna of the whole North Sea in this paper. Division of the infauna into assemblages by TWINSPAN analysis separated northern assemblages from southern assemblages along the 70 m depth contour. Assemblages were further separated by the 30, 50 m and 100 m depth contour as well as by the sediment type. In addition to widely distributed species, cold water species do not occur further south than the northern edge of the Dogger Bank, which corresponds to the 50 m depth contour. Warm water species were not found north of the 100 m depth contour. Some species occur on all types of sediment but most are restricted to a special sediment and therefore these species are limited in their distribution. The factors structuring species distributions and assemblages seem to be temperature, the influence of different water masses, e.g. Atlantic water, the type of sediment and the food supply to the benthos.
    Keywords: ICES 100; ICES 110; ICES 118; ICES 125; ICES 126; ICES 127; ICES 128; ICES 129; ICES 130; ICES 131; ICES 137; ICES 138; ICES 139; ICES 140; ICES 141; ICES 147; ICES 148; ICES 149; ICES 150; ICES 151; ICES 152; ICES 158; ICES 159; ICES 160; ICES 161; ICES 162; ICES 163; ICES 168; ICES 169; ICES 170; ICES 171; ICES 172; ICES 173; ICES 55; ICES 63; ICES 72; ICES 81; ICES 90; MarGIS_DANS_Label: ICES8586BSe_8; North Sea; van Veen Grab; VGRAB; VH1486; VH1486_055; VH1486_063; VH1486_072; VH1486_081; VH1486_090; VH1486_100; VH1486_110; VH1486_118; VH1486_125; VH1486_126; VH1486_127; VH1486_128; VH1486_129; VH1486_130; VH1486_131; VH1486_137; VH1486_138; VH1486_139; VH1486_140; VH1486_141; VH1486_147; VH1486_148; VH1486_149; VH1486_150; VH1486_151; VH1486_152; VH1486_158; VH1486_159; VH1486_160; VH1486_161; VH1486_162; VH1486_163; VH1486_168; VH1486_169; VH1486_170; VH1486_171; VH1486_172; VH1486_173; Victor Hensen; xxxVH1486_091; xxxVH1486_101; xxxVH1486_111; xxxVH1486_124; xxxVH1486_165; xxxVH1486_175; xxxVH1486_177; xxxVH1486_179; xxxVH1486_181; xxxVH1486_184; xxxVH1486_186; xxxVH1486_189; xxxVH1486_192; xxxVH1486_194; xxxVH1486_196; xxxVH1486_199; xxxVH1486_201; xxxVH1486_202; xxxVH1486_205; xxxVH1486_208; xxxVH1486_209; xxxVH1486_210; xxxVH1486_212; xxxVH1486_215; xxxVH1486_217; xxxVH1486_220; xxxVH1486_221; xxxVH1486_222; xxxVH1486_223; xxxVH1486_226; xxxVH1486_227; xxxVH1486_230; xxxVH1486_233; xxxVH1486_234; xxxVH1486_235
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 4
    Publication Date: 2023-08-05
    Keywords: Abra alba; Abra nitida; Abra prismatica; Acanthocardia echinata; Acidostoma obesum; Acidostoma sarsi; Acrenhydrosoma perplexum; Acrocnida brachiata; Acteon tornatilis; Ameira brevipes; Ameira parvula; Ameira pusilla; Ameira sp.; Ameiropsis brevicornis; Ameiropsis mixta; Ampelisca brevicornis; Ampelisca diadema; Ampelisca macrocephala; Ampelisca spinipes; Ampelisca tenuicornis; Ampelisca typica; Ampharete; Ampharete baltica; Ampharete falcata; Ampharete finmarchica; Amphicteis gunneri; Amphictene auricoma; Amphitrite cirrata; Amphiura chiajei; Amphiura filiformis; Anaitides; Anaitides groenlandica; Anaitides longipes; Anaitides mucosa; Anaitides rosea; Anobothrus gracilis; Antalis entalis; Anthozoa; Antinoella sarsi; Aonides paucibranchiata; Aoridae; Apherusa ovalipes; Aphrodita aculeata; Arctica islandica; Arenocaris bifida; Arenosetella germanica; Arenosetella sp.; Aricidea catherinae; Aricidea cerrutii; Aricidea simonae; Armina loveni; Ascidiacea; Asellopsis intermedia; Astarte sulcata; Bathyporeia elegans; Bathyporeia tenuipes; Brachyura; Brada villosa; Bradya scotti; Bradya typica; Brissopsis lyrifera; Bulbamphiascus imus; Bulbamphiascus sp.; Byblis gaimardi; Callianassa subterranea; Campylaspis glabra; Campylaspis rubicunda; Canuella perplexa; Capitellidae; Chaetoderma nitidulum; Chaetoparia nilssoni; Chaetopterus variopedatus; Chaetozone setosa; Chamelea gallina; Cheirocratus intermedius; Cirratulus cirratus; Cletodes limicola; Cletodes longicaudatus; Cletodes pusillus; Cletodes sp.; Cletodes tenuipes; Cletodidae sp.; Cnidaria; Cochlodesma praetenue; Colus gracilis; Copepoda; Corbula gibba; Corophium crassicorne; Corystes cassivelaunus; Counting; Curveulima macrophthalmica; Cylichna cylindracea; Dactylopusia tisboides; Danielssenia typica; Date/Time of event; DEPTH, sediment/rock; Diastylis boecki; Diastylis bradyi; Diastylis laevis; Diastylis lucifera; Diastylis rathkei; Diplocirrus glaucus; Ditrupa arietina; Dosinia exoleta; Dyopedos monacanthus; Echinocardium cordatum; Echinocardium flavescens; Echinocyamus pusillus; Echiurus echiurus; Eclysippe vanelli; Ectinosoma melaniceps; Ectinosoma normani; Ectinosoma sp.; Ectinosoma tenuipes; Enhydrosoma buchholtzi; Enhydrosoma sp.; Enipo kinbergi; Enteropneusta; Epitonium trevelyanum; Ericthonius difformis; Eriopisa elongata; Eteone flava; Eteone foliosa; Eteone longa; Euclymene; Euclymene droebachiensis; Eudorella emarginata; Eudorella truncatula; Eudorellopsis deformis; Eulima bilineata; Eumida sanguinea; Eusyllis blomstrandi; Euterpina acutifrons; Evansula pygmaea; Event label; Exogone hebes; Exogone verugera; Fabulina fabula; Facelina bostoniensis; Gammaropsis nitida; Gari fervensis; Gastrotricha; Gattyana cirrosa; Glycera; Glycera alba; Glycera celtica; Glycera lapidum; Glycera rouxi; Glycera tridactyla; Glycinde nordmanni; Goniada maculata; Goniada norvegica; Halectinosoma gothiceps; Halectinosoma herdmani; Halectinosoma propinquum; Halectinosoma sarsi; Halectinosoma sp.; Haloschizopera bulbifera; Haloschizopera pygmaea; Haploops tubicola; Harmothoe; Harmothoe antilopes; Harmothoe castanea; Harmothoe glabra; Harmothoe impar; Harmothoe lunulata; Harmothoe mcintoshi; Harpinia antennaria; Harpinia crenulata; Hastigerella sp.; Hemilamprops rosea; Heteroclymene robusta; Heterolaophonte sp.; Heterolaophonte stroemi; Hippomedon denticulatus; Holothurioidea; Hyala vitrea; Hyalinoecia tubicola; Hyas coarctatus; Hydroides norvegica; Hydrozoa; ICES 100; ICES 109; ICES 110; ICES 118; ICES 119; ICES 120; ICES 125; ICES 126; ICES 127; ICES 128; ICES 129; ICES 130; ICES 131; ICES 137; ICES 138; ICES 139; ICES 140; ICES 141; ICES 142; ICES 143; ICES 147; ICES 148; ICES 149; ICES 150; ICES 151; ICES 152; ICES 153; ICES 158; ICES 159; ICES 160; ICES 161; ICES 162; ICES 163; ICES 168; ICES 169; ICES 170; ICES 171; ICES 172; ICES 173; ICES 55; ICES 63; ICES 72; ICES 81; ICES 90; ICES 99; Idyanthe pusilla; Idyella exigua; Idyella major; Idyella pallidula; Idyellopsis typica; Interleptomesochra eulittoralis; Interleptomesochra tenuicornis; Iphimedia obesa; Isopoda; Kinorhyncha; Lagis koreni; Langerhansia cornuta; Lanice conchilega; Laonice cirrata; Laophonte cornuta; Laophonte inornata; Laophonte longicaudata; Latitude of event; Leptastacus laticaudatus; Leptastacus sp.; Leucothoe lilljeborgi; Levinsenia gracilis; Liocarcinus holsatus; Longipedia coronata; Longipedia helgolandica; Longipedia scotti; Longitude of event; Lucinoma borealis; Lumbrineris; Lumbrineris fragilis; Lumbrineris hibernica; Lumbrineris latreilli; Lumbrineris tetraura; Lunatia montagui; Lunatia poliana; Lysilla loveni; Mactra stultorum; Magelona; Magelona alleni; Maldane sarsi; Maldanidae; MarGIS_DANS_Label: ICES8586BSe_8; Megamphopus cornutus; Microphthalmus; Minuspio cirrifera; Molgula; Montacuta substriata; Mya truncata; Myriochele; Mysella bidentata; Nebalia bipes; Nematoda; Nemertea; Neomenia carinata; Nephtys; Nephtys caeca; Nephtys hombergii; Nephtys incisa; Nephtys longosetosa; Nereimyra punctata; Nereiphylla; Nereis zonata; Nicomache; Nicomache lumbricalis; North Sea; Nothria conchylega; Notomastus latericeus; Nucula nitidosa; Nuculoma tenuis; Nyctiphanes couchi; Ophelia borealis; Ophelina acuminata; Ophiodromus flexuosus; Ophiura affinis; Ophiura albida; Ophiura ophiura; Orbinia sertulata; Ostracoda; Owenia fusiformis; Paphia rhomboides; Paralaophonte congenera; Paraleptastacus espinulatus; Paraleptastacus holsaticus; Paraleptastacus spinicauda; Paramphiascoides vararensis; Paramphiascopsis longirostris; Paramphinome jeffreysii; Paramphitrite tetrabranchia; Paranannopus sp.; Parapleustes bicuspis; Parvicardium minimum; Phaxas pellucidus; Philine quadrata; Philine scabra; Philomedes globosus; Pholoe; Phoronis; Photis longicaudata; Photis reinhardi; Phoxocephalus holbolli; Phtisica marina; Pisione remota; Poecilochaetus serpens; Polychaeta; Polydora caulleryi; Polydora ciliata; Polynoidae; Polyphysia crassa; Pontocrates; Pontocrates longimanus; Praxillella affinis; Praxillura longissima; Priapulida; Prionospio malmgreni; Proameira hiddensoensis; Proameira sp.; Protomedeia fasciata; Psammotopa phyllosetosa; Pseudameira crassicornis; Pseudameira perplexa; Pseudameira sp.; Pseudamphiascopsis herdmani; Pseudobradya pulchella; Pseudobradya sp.; Pseudocuma simile; Pseudolaophonte spinosa; Pseudomesochra longifurcata; Pseudomesochra sp.; Pseudonychocamptus proximus; Pseudopolydora cf. pauchibranchiata; Pseudopolydora pulchra; Pseudosarsameira exilis; Pseudotachidius coronatus; Rhodine gracilior; Sabellidae; Sample code/label; Samytha sexcirrata; Sarsameira parva; Sarsameira sp.; Saxicavella jeffreysi; Scalibregma inflatum; Scolelepis bonnieri; Scolelepis tridentata; Scoloplos armiger; Scopelocheirus hopei; Sicameira leptoderma; Siphonoecetes striatus; Sipunculida indeterminata; Spatangus purpureus; Sphaerodorum flavum; Spiochaetopterus typicus; Spio filicornis; Spio mecznikowianus; Spiophanes bombyx; Spiophanes kroeyeri; Spisula subtruncata; Stenhelia aemula; Stenhelia gibba; Stenhelia sp.; Stenothoe monoculoides; Sthenelais limicola; Streblosoma bairdi; Stylicletodes longicaudatus; Synelmis klatti; Tachidiella minuta; Tachidiella sp.; Tachidiopsis cyclopoides; Tanaidacea; Tardigrada; Tellimya ferruginosa; Terebellides stroemii; Tharyx; Thelepus cincinnatus; Thracia phaseolina; Thyasira; Thyasira ferruginea; Timoclea ovata; Tiron spiniferum; Tisbe sp.; Tmetonyx cicada; Travisia forbesii; Trichobranchus roseus; Tridonta montagui; Tritonia hombergii; Tryphosites longipes; Turbellaria; Turbonilla crenata; Turritella communis; Typhlamphiascus confusus; Typhlamphiascus gracilis; Unciola planipes; Urothoe elegans; van Veen Grab; VGRAB; VH1486; VH1486_055; VH1486_063; VH1486_072; VH1486_081; VH1486_090; VH1486_099; VH1486_100; VH1486_109; VH1486_110; VH1486_118; VH1486_119; VH1486_120; VH1486_125; VH1486_126; VH1486_127; VH1486_128; VH1486_129; VH1486_130; VH1486_131; VH1486_137; VH1486_138; VH1486_139; VH1486_140; VH1486_141; VH1486_142;
    Type: Dataset
    Format: text/tab-separated-values, 27432 data points
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  • 5
    Publication Date: 2024-04-20
    Keywords: Biomass, ash free dry mass per area; Date/Time of event; DEPTH, sediment/rock; Event label; FHE_19870069; FHE238_073; FHE238_082; FHE238_091; FHE238_092; FHE238_101; FHE238_111; FHE238_112; FHE238_121; FHE238_122; FHE238_132; FHE238_133; FHE238_143; FHE238_144; FHE238_154; FHE238_155; FHE238_164; FHE238_165; FHE238_174; FHE238_175; FHE238_176; FHE238, MarGIS_DANS_Label: ICES8586BSe_7; Friedrich Heincke; ICES 101; ICES 111; ICES 112; ICES 121; ICES 122; ICES 132; ICES 133; ICES 143; ICES 144; ICES 154; ICES 155; ICES 164; ICES 165; ICES 174; ICES 175; ICES 176; ICES 73; ICES 82; ICES 91; ICES 92; Latitude of event; Longitude of event; North Sea; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 93 data points
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  • 6
    Publication Date: 2024-04-20
    Keywords: Biomass, ash free dry mass per area; Date/Time of event; DEPTH, sediment/rock; Event label; ICES 100; ICES 110; ICES 118; ICES 125; ICES 126; ICES 127; ICES 128; ICES 129; ICES 130; ICES 131; ICES 137; ICES 138; ICES 139; ICES 140; ICES 141; ICES 147; ICES 148; ICES 149; ICES 150; ICES 151; ICES 152; ICES 158; ICES 159; ICES 160; ICES 161; ICES 162; ICES 163; ICES 168; ICES 169; ICES 170; ICES 171; ICES 172; ICES 173; ICES 55; ICES 63; ICES 72; ICES 81; ICES 90; Latitude of event; Longitude of event; MarGIS_DANS_Label: ICES8586BSe_8; North Sea; van Veen Grab; VGRAB; VH1486; VH1486_055; VH1486_063; VH1486_072; VH1486_081; VH1486_090; VH1486_100; VH1486_110; VH1486_118; VH1486_125; VH1486_126; VH1486_127; VH1486_128; VH1486_129; VH1486_130; VH1486_131; VH1486_137; VH1486_138; VH1486_139; VH1486_140; VH1486_141; VH1486_147; VH1486_148; VH1486_149; VH1486_150; VH1486_151; VH1486_152; VH1486_158; VH1486_159; VH1486_160; VH1486_161; VH1486_162; VH1486_163; VH1486_168; VH1486_169; VH1486_170; VH1486_171; VH1486_172; VH1486_173; Victor Hensen
    Type: Dataset
    Format: text/tab-separated-values, 158 data points
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Helgoland marine research 40 (1986), S. 343-353 
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Sargassum was collected during the Sargasso Sea Eel Expedition in Spring 1979. On average, the morphological form typeSargassum natans (I) made up 85 % of the total wet weight of the samples. South of the thermal front, larger amounts of weeds were observed. Here, the bladder size ofS. natans (I) was significantly smaller (surface 47±7 mm2) than in the northern part (surface: 64±15 mm2), while phylloids showed no differences. The composition and density of some epibionts were examined.Membranipora tuberculata (Bryozoa),Clytia noliformis (Hydrozoa) and the calcarious algae “Melobesia sp.” (Rhodophyta) were studied quantitatively according to different features at 17 stations.M. tuberculata was the most abundant epibiont followed byC. noliformis. Compared with these species, "Melobesia sp." occurred in considerably lower quantities.M. tuberculata showed a preference for bladders rather than phylloids;C. noliformis was found more frequently on phylloids than on bladders. "Melobesia sp." did not show any preference. Frequency and abundance of these epibionts were higher north of the thermal front than south of this front. North of the frontS. natans (I) was less abundant but bladders were larger.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2018-03-21
    Description: In 1986 participants of the Benthos Ecology Working Group of ICES conducted a synoptic mapping of the infauna of the southern and central North Sea. Together with a mapping of the infauna of the northern North Sea by Eleftheriou and Basford (1989) this provides the database for the description of the benthic infauna of the whole North Sea in this paper. Division of the infauna into assemblages by TWINSPAN analysis separated northern assemblages from southern assemblages along the 70 m depth contour. Assemblages were further separated by the 30, 50 m and 100 m depth contour as well as by the sediment type. In addition to widely distributed species, cold water species do not occur further south than the northern edge of the Dogger Bank, which corresponds to the 50 m depth contour. Warm water species were not found north of the 100 m depth contour. Some species occur on all types of sediment but most are restricted to a special sedimentand therefore these species are limited in their distribution. The factors structuring species distributions and assemblages seem to be temperature, the influence of different water masses, e.g. Atlantic water, the type of sediment and the food supply to the benthos. Eleftheriou, A. and Basford, D. J. Journal of the Marine Biological Association of the UK, 69: 123–143.
    Type: Article , PeerReviewed
    Format: text
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  • 9
    Publication Date: 2018-03-19
    Description: Total biomass and biomass of large taxonomic groups (polychaetes, molluscs, crustaceans, echinoderms) and species diversity of the macrofauna were determined for almost 200 North Sea stations sampled synoptically by seven vessels during Spring 1986 and for 120 additional stations sampled in earlier years by the Marine Laboratory in Aberdeen. There exists a clear and significant decreasing trend in biomass with latitude, both in total biomass and for the different taxonomic groups. Apart from latitude, sediment composition and chlorophyll a content of the sediment also infuence total biomass and biomass of most groups significantly. Biomass increases consistently in finer sediments and sediments with a higher chlorophyll a content. The same trends are found for the results within laboratories. Some interaction exists, indicating weak laboratory and zonal effects. Diversity, as measured by Hill's diversity index N1 = (exp H′) shows a clear and significant trend with latitude. Towards the north of the North Sea diversity increases considerably. The trend is also found for laboratories separately and is everywhere equally strong. Also longitude and depth show an effect on diversity. Sediment variables have no clear influence on diversity. Other diversity measures show the same trend but are more variable than N1,. Total density tends to increase towards the north, but sediment related variables have a larger influence. Mean individual weight becomes considerably smaller towards the northern part of the North Sea.
    Type: Article , PeerReviewed
    Format: text
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  • 10
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    In:  EPIC3Taxonomy of North Sea benthos Proc of a Workshop, org in Helgoland, 1988 Delta Inst , Yerseke, pp. 7-9
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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