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Hydroacoustic data collected during AL-519/1 in January 2019 in the German Bight

Macrozoobenthos biomass in surface sediments of R/V Alkor cruise AL519/1

Hydroacoustic and Sediment data collected during AL-519/1 in January 2019 in the German Bight

During the research cruise AL-519-1 with RV Alkor the effects of dredging measures in an extraction site west off Sylt (German Bight) were investigated. Here, sandy material was extracted since 1984 for beach nourishment on the Island of Sylt. The extraction site lies approx. 7 km west of Sylt and has an extend of 5.5 km*3 km with water depths between 13 and 32 m. The investigations took place in January 2019 and lasted about five days. In order to assess the morphology of the study site, a gapless bathymetry was measured using a multibeam echosounder (ELAC Seabeam 1000, 180 kHz). For the determination of further seafloor characteristics and backscatter responses of the seafloor, a sidescan sonar were used (Imagenex YellowFin 872, 330 kHz). In addition, 55 sediment samples were taken in different domains of the study site (e.g. old dredging pits, new dredging pits, unaffected seafloor). The sediment samples were examined with regard to their grain sizes as well as their macrozoobenthos community composition.

Macrozoobenthos abundances in surface sediments of R/V Alkor cruise AL519/1

Granulometry in surface sediments of R/V Alkor cruise AL519/1

Kartierung von Sedimentoberflächenstrukturen im Einflußbereich wichtiger Bodenseezuflüsse mit Hilfe des Sidescan-Sonar

Untersuchungen zur Erfassung schutzwuerdiger Lebensraeume im Sublitoral der niedersaechsischen Kueste unter Zuhilfenahme von Sonartechniken

Pruefung von Sonartechniken hinsichtlich ihrer Verwendbarkeit fuer die Ueberwachung sublitoraler benthischer Organismengemeinschaften. - Erhebung von Daten ueber schutzwuerdige benthische Organismengemeinschaften.

Meeresbodensedimente im Maßstab 1:10.000 im deutschen Seegebiet

Daten zum Aufbau des Meeresbodens in Nord- und Ostsee. Weitere Informationen finden Sie unter: https://gdi.bsh.de/de/data/Seabed-Sediments-on-a-scale-of-1-10-000-in-German-sea-area_Information_Meeresbodensedimente_im_Massstab_1_zu_10000_im_deutschen_Seegebiet_DE.pdf

Meeresbodensedimente im Maßstab 1:100.000 in der deutschen Ostsee

Daten über die Verteilung der Meeresbodensedimente in der Ostsee in verschiedenen Klassifizierungen im Maßstab 1:100.000. Weitere Informationen finden Sie unter: https://gdi.bsh.de/de/data/Seabed-Sediments-on-a-scale-of-1-100-000-in-German-Baltic-Sea_Information_Meeresbodensedimente_im_Massstab_1_zu_100000_in_der_deutschen_Ostsee_DE.pdf

Meeresbodensedimente im Maßstab 1:10.000 im deutschen Seegebiet - WMS

Daten zum Aufbau des Meeresbodens in Nord- und Ostsee. Weitere Informationen finden Sie unter: https://gdi.bsh.de/de/data/Seabed-Sediments-on-a-scale-of-1-10-000-in-German-sea-area_Information_Meeresbodensedimente_im_Massstab_1_zu_10000_im_deutschen_Seegebiet_DE.pdf

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