Keywords: AC_2017-20; EXP; Experiment; invasion ecology; Magallana gigas; Mytilus edulis; oyster reefs; Treatment; Wadden Sea, North Sea, Germany

Keywords: Abra alba; Aeolidia papillosa; Alcyonidium polyoum; Ampharete acutifrons; Amphiporus lactifloreus; Amphiporus sp.; Amphitrite johnstoni; Angulus tenuis; Anthithamnion corymbosum; Apherusa bispinosa; Arenicola marina; Asterias rubens; Balanus crenatus; Bathyporeia sarsi; Bledius arenarius; Bledius spectabilis; Bryopsis hypnoides; Buccinum undatum; Cancer pagurus; Capitella capitata; Carcinus maenas; Cephalotrix linearis; Ceramium rubrum; Cerastoderma edule; Chaetomorpha sp.; Chaetozone setosa; Cheirocratus sundevallii; Chondrus crispus; Chorda filum; Ciliata mustela; Cillenus lateralis; Cladophora sp.; Corophium arenarium; Counting; Crangon crangon; Crassostrea gigas; Crepidula fornicata; DATE/TIME; DEPTH, sediment/rock; Diptera, larvae; Elachista fucicola; Electra pilosa; Elminius modestus; Ensis directus; Enteromorpha sp.; Eteone longa; Eumida punctifera; Event label; Fucus vesuculosus; Gammarus locusta; Gammarus marinus; Gammarus salinus; Gattyana cirrosa; German Bight Wadden Sea; Gracilaria vermicullophylla; Halichiondria; HAND; Harmothoe imbricata; Harmothoe impar; Harmothoe sarsi; Haustorius arenarius; Hemigrapsus; Hemigrapsus takanoi; Heteromastus filiformis; Hydractinia echinata; Hydrobia ulvae; Idothea baltica; Lanice conchilega; Latitude of event; Lepidochiton cinereus; Lepidonotus sqamatus; Lineus ruber; Lineus sanguineus; Lineus viridis; Littorina littorea; Littorina mariae; Littorina saxatilis; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macoma balthica; Macrobenthic long-term series in the German Bight; Magelona papillicornis; Malacoceros sp.; Metridium senile; Molgula manhattensis; Mya arenaria; Mytilus edulis; Nephtys caeca; Nephtys hombergii; Nereimyra punctata; Nereis diversicolor; Nereis longissima; Nereis succinea; Nereis virens; Ophelia limacina; Ophelia rathkei; Pagurus bernhardus; Petalonia fascia; Petricola pholadiformis; Pholoe minuta; Phyllodoce musosa; Phymatolithon, polymorphic; Polydora ligni; Polydora sp.; Polysiphonia sp.; Pomatoceros triqueter; Pomatoschistus microps; Porphyra sp.; Praunus flexuosus; Puccinellia maritima; Pygospio elegans; Ralfsia verrucosa; Retusa obtusa; Sagartia troglodytes; Sagartiogeton undatus; Salicornia sp.; Sampling by hand; Sargassum muticum; Scolelepis foliosa; Scolelepis squamata; Scoloplos armiger; Scrobicularia plana; Semibalanus balanoides; Spartina anglica; Spio filicornis; Spiophanes bombyx; Styela clava; Sueda maritima; Sylt-091; Sylt-125; Sylt-133; Sylt-144; Talitrus saltator; Talorchestia deshayesii; Tetrastemma candidum; Ulva lactuca; Valencinia sp.; Vaucheria sp.; Venerupis pullastra; Zoarces viviparus; Zostera marina; Zostera noltii

Keywords: Abra alba; Aeolidia papillosa; Alcyonidium polyoum; Ampharete acutifrons; Amphiporus lactifloreus; Amphiporus sp.; Amphitrite johnstoni; Angulus tenuis; Anthithamnion corymbosum; Apherusa bispinosa; Arenicola marina; Asterias rubens; Balanus crenatus; Bathyporeia sarsi; Bledius arenarius; Bledius spectabilis; Bryopsis hypnoides; Buccinum undatum; Cancer pagurus; Capitella capitata; Carcinus maenas; Cephalotrix linearis; Ceramium rubrum; Cerastoderma edule; Chaetomorpha sp.; Chaetozone setosa; Cheirocratus sundevallii; Chondrus crispus; Chorda filum; Ciliata mustela; Cillenus lateralis; Cladophora sp.; Corophium arenarium; Counting; Crangon crangon; Crassostrea gigas; Crepidula fornicata; DATE/TIME; DEPTH, sediment/rock; Diptera, larvae; Elachista fucicola; Electra pilosa; Elminius modestus; Ensis directus; Enteromorpha sp.; Eteone longa; Eumida punctifera; Event label; Fucus vesuculosus; Gammarus locusta; Gammarus marinus; Gammarus salinus; Gattyana cirrosa; German Bight Wadden Sea; Gracilaria vermicullophylla; Halichiondria; HAND; Harmothoe imbricata; Harmothoe impar; Harmothoe sarsi; Haustorius arenarius; Hemigrapsus; Hemigrapsus takanoi; Heteromastus filiformis; Hydractinia echinata; Hydrobia ulvae; Idothea baltica; Lanice conchilega; Latitude of event; Lepidochiton cinereus; Lepidonotus sqamatus; Lineus ruber; Lineus sanguineus; Lineus viridis; Littorina littorea; Littorina mariae; Littorina saxatilis; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macoma balthica; Macrobenthic long-term series in the German Bight; Magelona papillicornis; Malacoceros sp.; Metridium senile; Molgula manhattensis; Mya arenaria; Mytilus edulis; Nephtys caeca; Nephtys hombergii; Nereimyra punctata; Nereis diversicolor; Nereis longissima; Nereis succinea; Nereis virens; Ophelia limacina; Ophelia rathkei; Pagurus bernhardus; Petalonia fascia; Petricola pholadiformis; Pholoe minuta; Phyllodoce musosa; Phymatolithon, polymorphic; Polydora ligni; Polydora sp.; Polysiphonia sp.; Pomatoceros triqueter; Pomatoschistus microps; Porphyra sp.; Praunus flexuosus; Puccinellia maritima; Pygospio elegans; Ralfsia verrucosa; Retusa obtusa; Sagartia troglodytes; Sagartiogeton undatus; Salicornia sp.; Sampling by hand; Sargassum muticum; Scolelepis foliosa; Scolelepis squamata; Scoloplos armiger; Scrobicularia plana; Semibalanus balanoides; Spartina anglica; Spio filicornis; Spiophanes bombyx; Styela clava; Sueda maritima; Sylt-091; Sylt-125; Sylt-133; Sylt-144; Talitrus saltator; Talorchestia deshayesii; Tetrastemma candidum; Ulva lactuca; Valencinia sp.; Vaucheria sp.; Venerupis pullastra; Zoarces viviparus; Zostera marina; Zostera noltii

Keywords: Abra alba; Aeolidia papillosa; Alcyonidium polyoum; Ampharete acutifrons; Amphiporus lactifloreus; Amphiporus sp.; Amphitrite johnstoni; Angulus tenuis; Anthithamnion corymbosum; Apherusa bispinosa; Arenicola marina; Asterias rubens; Balanus crenatus; Bathyporeia sarsi; Bledius arenarius; Bledius spectabilis; Bryopsis hypnoides; Buccinum undatum; Cancer pagurus; Capitella capitata; Carcinus maenas; Cephalotrix linearis; Ceramium rubrum; Cerastoderma edule; Chaetomorpha sp.; Chaetozone setosa; Cheirocratus sundevallii; Chondrus crispus; Chorda filum; Ciliata mustela; Cillenus lateralis; Cladophora sp.; Corophium arenarium; Counting; Crangon crangon; Crassostrea gigas; Crepidula fornicata; DATE/TIME; DEPTH, sediment/rock; Diptera, larvae; Elachista fucicola; Electra pilosa; Elminius modestus; Ensis directus; Enteromorpha sp.; Eteone longa; Eumida punctifera; Event label; Fucus vesuculosus; Gammarus locusta; Gammarus marinus; Gammarus salinus; Gattyana cirrosa; German Bight Wadden Sea; Gracilaria vermicullophylla; Halichiondria; HAND; Harmothoe imbricata; Harmothoe impar; Harmothoe sarsi; Haustorius arenarius; Hemigrapsus; Hemigrapsus takanoi; Heteromastus filiformis; Hydractinia echinata; Hydrobia ulvae; Idothea baltica; Lanice conchilega; Latitude of event; Lepidochiton cinereus; Lepidonotus sqamatus; Lineus ruber; Lineus sanguineus; Lineus viridis; Littorina littorea; Littorina mariae; Littorina saxatilis; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macoma balthica; Macrobenthic long-term series in the German Bight; Magelona papillicornis; Malacoceros sp.; Metridium senile; Molgula manhattensis; Mya arenaria; Mytilus edulis; Nephtys caeca; Nephtys hombergii; Nereimyra punctata; Nereis diversicolor; Nereis longissima; Nereis succinea; Nereis virens; Ophelia limacina; Ophelia rathkei; Pagurus bernhardus; Petalonia fascia; Petricola pholadiformis; Pholoe minuta; Phyllodoce musosa; Phymatolithon, polymorphic; Polydora ligni; Polydora sp.; Polysiphonia sp.; Pomatoceros triqueter; Pomatoschistus microps; Porphyra sp.; Praunus flexuosus; Puccinellia maritima; Pygospio elegans; Ralfsia verrucosa; Retusa obtusa; Sagartia troglodytes; Sagartiogeton undatus; Salicornia sp.; Sampling by hand; Sargassum muticum; Scolelepis foliosa; Scolelepis squamata; Scoloplos armiger; Scrobicularia plana; Semibalanus balanoides; Spartina anglica; Spio filicornis; Spiophanes bombyx; Styela clava; Sueda maritima; Sylt-091; Sylt-125; Sylt-133; Sylt-144; Talitrus saltator; Talorchestia deshayesii; Tetrastemma candidum; Ulva lactuca; Valencinia sp.; Vaucheria sp.; Venerupis pullastra; Zoarces viviparus; Zostera marina; Zostera noltii

Keywords: Abra alba; Aeolidia papillosa; Alcyonidium polyoum; Ampharete acutifrons; Amphiporus lactifloreus; Amphiporus sp.; Amphitrite johnstoni; Angulus tenuis; Anthithamnion corymbosum; Apherusa bispinosa; Arenicola marina; Asterias rubens; Balanus crenatus; Bathyporeia sarsi; Bledius arenarius; Bledius spectabilis; Bryopsis hypnoides; Buccinum undatum; Cancer pagurus; Capitella capitata; Carcinus maenas; Cephalotrix linearis; Ceramium rubrum; Cerastoderma edule; Chaetomorpha sp.; Chaetozone setosa; Cheirocratus sundevallii; Chondrus crispus; Chorda filum; Ciliata mustela; Cillenus lateralis; Cladophora sp.; Corophium arenarium; Counting; Crangon crangon; Crassostrea gigas; Crepidula fornicata; DATE/TIME; DEPTH, sediment/rock; Diptera, larvae; Elachista fucicola; Electra pilosa; Elminius modestus; Ensis directus; Enteromorpha sp.; Eteone longa; Eumida punctifera; Event label; Fucus vesuculosus; Gammarus locusta; Gammarus marinus; Gammarus salinus; Gattyana cirrosa; German Bight Wadden Sea; Gracilaria vermicullophylla; Halichiondria; HAND; Harmothoe imbricata; Harmothoe impar; Harmothoe sarsi; Haustorius arenarius; Hemigrapsus; Hemigrapsus takanoi; Heteromastus filiformis; Hydractinia echinata; Hydrobia ulvae; Idothea baltica; Lanice conchilega; Latitude of event; Lepidochiton cinereus; Lepidonotus sqamatus; Lineus ruber; Lineus sanguineus; Lineus viridis; Littorina littorea; Littorina mariae; Littorina saxatilis; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macoma balthica; Macrobenthic long-term series in the German Bight; Magelona papillicornis; Malacoceros sp.; Metridium senile; Molgula manhattensis; Mya arenaria; Mytilus edulis; Nephtys caeca; Nephtys hombergii; Nereimyra punctata; Nereis diversicolor; Nereis longissima; Nereis succinea; Nereis virens; Ophelia limacina; Ophelia rathkei; Pagurus bernhardus; Petalonia fascia; Petricola pholadiformis; Pholoe minuta; Phyllodoce musosa; Phymatolithon, polymorphic; Polydora ligni; Polydora sp.; Polysiphonia sp.; Pomatoceros triqueter; Pomatoschistus microps; Porphyra sp.; Praunus flexuosus; Puccinellia maritima; Pygospio elegans; Ralfsia verrucosa; Retusa obtusa; Sagartia troglodytes; Sagartiogeton undatus; Salicornia sp.; Sampling by hand; Sargassum muticum; Scolelepis foliosa; Scolelepis squamata; Scoloplos armiger; Scrobicularia plana; Semibalanus balanoides; Spartina anglica; Spio filicornis; Spiophanes bombyx; Styela clava; Sueda maritima; Sylt-091; Sylt-125; Sylt-133; Sylt-144; Talitrus saltator; Talorchestia deshayesii; Tetrastemma candidum; Ulva lactuca; Valencinia sp.; Vaucheria sp.; Venerupis pullastra; Zoarces viviparus; Zostera marina; Zostera noltii