Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 Lienkämper Miriam miriam.lienkaemper@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 Brand Markus Markus.Brand@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0003-4768-1889 Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 Mccrea Cameron cameronmccrea28@gmail.com 0009-0001-7106-4867 Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 Hoffmann Henning henning.hoffmann@awi.de Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Schaeper Hans Elgar.schaeper@gmail.com Pogson Katie katie.123.pogson@gmail.com Nader Lola lola.nader@zoologie.uni-kiel.de 2025 Fish counts and species at and around artificially introduced tetrapod fields in the southern North Sea, 2023 dataset https://doi.org/10.1594/PANGAEA.974110 2025-01-07T14:37:18 With increasing global change, coastal protection measures are becoming increasingly important for preserving our coastal features and infrastructure. Coastal protection often comes in the form of artificial structures however, artificial structures can also appear as renewable energy projects, maritime infrastructure and aquaculture installations. The ecological effects of such structures on the natural surroundings remains largely unclear. 36 tetrapod structures (4-footed concrete breakwaters each weighing 2.8 t) in groups of six were added to the MarGate underwater experimental area to the north of Helgoland, in the Southern North Sea, in 2009 at 5 and 10 m water depth. The 5 m fields TN5 (North), TM5 (Middle) and TS5 (South) have been monitored monthly, since their introduction, with respect to the abundance, species composition and size of the associated biota community. By carrying out this monitoring project, we aim to study the long-term effects of artificial structures on the local biotic community in shallow coastal ecosystems. Line transect based visual fish census conducted by trained scientific divers is used to survey the fish communities in the vicinity of each tetrapod field. For this, four 20m long line transects are laid out permanently in the four cardinal directions, each marked at 0, 5, 10, 15 and 20 m distance to the tetrapod field. Data collection is communicated by the diver via voice communication of the surface and noted directly in the standardized protocol together with metadata on algae coverage other environmental parameters. Wehkamp Stephanie stephanie.wehkamp@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/stephanie-wehkamp.html Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 2013 Crustaceans and fish abundances and species at and around artificially introduced tetrapod fields in the southern North Sea, 2009 dataset https://doi.org/10.1594/PANGAEA.821909 Wehkamp Stephanie stephanie.wehkamp@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/stephanie-wehkamp.html Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 2013 Crustaceans and fish abundances and species at and around artificially introduced tetrapod fields in the southern North Sea, 2010-2011 dataset https://doi.org/10.1594/PANGAEA.821915 Wehkamp Stephanie stephanie.wehkamp@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/stephanie-wehkamp.html Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 2013 Crustaceans and fish abundances and species at and around artificially introduced tetrapod fields in the southern North Sea, 2013 dataset Alfred Wegener Institute - Biological Institute Helgoland https://doi.org/10.1594/PANGAEA.821916 Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Lienkämper Miriam miriam.lienkaemper@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html Happel Lea lea.happel@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html Bussmann Ingeborg ingeborg.bussmann@awi.de https://www.awi.de/ueber-uns/organisation/mitarbeiter/detailseite/ingeborg-bussmann.html 0000-0002-1197-7461 Eickelmann Laura laura.eickelmann@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0001-6707-3149 Anselm Norbert norbert.anselm@awi.de https://www.awi.de/ueber-uns/organisation/mitarbeiter/detailseite/norbert-anselm.html 0000-0003-0367-6850 Brand Markus Markus.Brand@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0003-4768-1889 Brix Holger holger.brix@hereon.de https://hereon.de/institutes/carbon_cycles/global_coast/team/098679/index.php.en 0000-0003-4229-6164 2024 Hydrographical time series data of Helgoland, Southern North Sea, 2023 dataset https://doi.org/10.1594/PANGAEA.967855 7.87753 7.879 54.19253 54.1937 7.878284329896938 54.19310030927837 2023-05-10T08:10:00 2023-10-10T15:40:15 5.0 5.0 CSD Centre for Scientific Diving https://www.awi.de/en/science/special-groups/scientific-diving.html Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 AWI_Coast Coastal Ecology @ AWI https://www.awi.de/en/science/biosciences/coastal-ecology.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 MarGate MarGate https://www.awi.de/en/science/special-groups/scientific-diving/margate.html Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 BAH Shelf Seas Systems Ecology @ AWI (former Biologische Anstalt Helgoland) https://www.awi.de/en/science/biosciences/shelf-sea-system-ecology.html Alfred Wegener Institute - Biological Institute Helgoland AWI Helgoland (BAH) https://www.awi.de/en/about-us/sites/helgoland.html https://ror.org/032e6b942 MarGate_TM5 Helgoland_TMI, TM5 54.19297 7.87845 German Bight, North Sea -5.0 Helgoland__Campaign Helgoland__Campaign 1900-01-01T00:00:00 1900-01-01 2050-12-31T00:00:00 2050-12-31 Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Wiltshire, Karen Helen Wiltshire, Karen Helen Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Sampling by diver DIVER MarGate_TN5 Helgoland_TN, TN5 54.1937 7.87753 German Bight, North Sea -5.0 Helgoland__Campaign Helgoland__Campaign 1900-01-01T00:00:00 1900-01-01 2050-12-31T00:00:00 2050-12-31 Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Wiltshire, Karen Helen Wiltshire, Karen Helen Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Sampling by diver DIVER MarGate_TS5 Helgoland_TS, TS5 54.19253 7.879 German Bight, North Sea -5.0 Helgoland__Campaign Helgoland__Campaign 1900-01-01T00:00:00 1900-01-01 2050-12-31T00:00:00 2050-12-31 Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Wiltshire, Karen Helen Wiltshire, Karen Helen Marine Station Helgoland https://www.awi.de/en/about-us/sites/helgoland.html Sampling by diver DIVER 4541 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Event DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Date/Time DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Depth water [m] Name Name Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Diver initials Name LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Longitude Direction Direction direction http://purl.obolibrary.org/obo/PATO_0000039 Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Compass direction Direction Distance Distance m distance http://purl.obolibrary.org/obo/PATO_0000040 Length L http://dbpedia.org/resource/Length Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Distance [m] Kelp, percentage, range Kelp percent kelp percentage Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Kelp percent Red algae, percentage, range Red algae percent red algae percentage Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Red algae percent Species, unique identification Species UID species Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Species UID Species, unique identification (Semantic URI) Species UID (Semantic URI) species Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Species UID (Semantic URI) Species, unique identification (URI) Species UID (URI) species Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Species UID (URI) Length class Length class Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 cm Length class Number of individuals Ind No # number Abundance or Count Fischer Philipp philipp.fischer@awi.de https://www.awi.de/en/science/special-groups/scientific-diving.html 0000-0002-3357-5420 Ind No [#] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Artificial structure Breakwater Coastal protection fish abundance fish diversity Helgoland MarGate underwater experimental area North Sea Scientific diving Tetrapod underwater visual census author108885 author108886 author108887 author108888 author108889 author22013 author26353 author27177 author40585 author49590 author79444 author79445 author79447 author83864 basis554 campaign3388165 campaign34252 curlevel30 event2710298 event2710299 event2710300 geocode1599 geocode1600 geocode1601 geocode1619 geocode8128 inst1842 inst32 license21 method11565 param16087 param510679 param535970 param535971 param535972 param7369 param84758 param92436 pi22013 project4066 project4489 project4926 project71 refds821909 refds821915 refds821916 refds967855 sourceinst1842 term1073131 term1073580 term1073628 term1748918 term1994564 term21089 term2606205 term2663481 term43863 term43975 term44025 term47358 term48176 term48791 term49384 term54627 term597 term67391 term67395 term69203 term75182 term75183 term75184 term75185