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Found 7 results.

Underwater Visual Census at pilot oyster reefs in the Borkum Reef Ground marine protected area during HE601 (June 2022)

The Underwater Visual Census (UVC) transects were carried out by scientific divers during the Heincke HE601 cruise focusing on developing and testing monitoring techniques at the Borkum Reef Ground and Sylt Outer Reef Marine Protected Areas. The UVC transects consisted of 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the observed organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Underwater Visual Census at pilot oyster reefs in the Borkum Reef Ground marine protected area during September 2021

The Underwater Visual Census (UVC) transect was carried out by scientific divers during the RESTORE expedition on board the ship Arctic Ocean during September 2021, focusing on the monitoring oyster pilot reefs and the ecology of benthic assemblages in the Borkum Reef Ground marine protected area. Due to logistic problems, only one of the two planned transects was done. The UVC transect consisted of seven 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the UVC video, as well as the abundance of organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Underwater Visual Census videos at pilot oyster reefs in the Borkum Reef Ground marine protected area (HEINCKE cruise HE601)

The Underwater Visual Census (UVC) transects were carried out by scientific divers during the Heincke HE601 cruise focusing on developing and testing monitoring techniques at the Borkum Reef Ground and Sylt Outer Reef Marine Protected Areas. The UVC transects consisted of 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the observed organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Abundance of megabenthos observed during Underwater Visual Census at pilot oyster reefs in the Borkum Reef Ground marine protected area (HEINCKE cruise HE601)

The Underwater Visual Census (UVC) transects were carried out by scientific divers during the Heincke HE601 cruise focusing on developing and testing monitoring techniques at the Borkum Reef Ground and Sylt Outer Reef Marine Protected Areas. The UVC transects consisted of 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the observed organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Abundance of megabenthos observed during Underwater Visual Census at pilot oyster reefs in the Borkum Reef Ground marine protected area during September 2021

The Underwater Visual Census (UVC) transect was carried out by scientific divers during the RESTORE expedition on board the ship Arctic Ocean during September 2021, focusing on the monitoring oyster pilot reefs and the ecology of benthic assemblages in the Borkum Reef Ground marine protected area. Due to logistic problems, only one of the two planned transects was done. The UVC transect consisted of seven 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the UVC video, as well as the abundance of organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Underwater Visual Census video at pilot oyster reefs in the Borkum Reef Ground marine protected area during September 2021

The Underwater Visual Census (UVC) transect was carried out by scientific divers during the RESTORE expedition on board the ship Arctic Ocean during September 2021, focusing on the monitoring oyster pilot reefs and the ecology of benthic assemblages in the Borkum Reef Ground marine protected area. Due to logistic problems, only one of the two planned transects was done. The UVC transect consisted of seven 1x1m sampling regions. To define these regions, divers used a 1m-long PVC pipe. At each sampling region, the diver spent approximately 1 minute counting and identifying, to the lowest taxonomic level possible, as many organisms as possible. The UVC transect provide insights into the general composition of key species, higher systematic groups and ecological guilds. Files included correspond to the UVC video, as well as the abundance of organisms at each sampling region. Precise geographical coordinates for start/end of the transect, as well as that for individual sampling regions is unavailable.

Umweltsensibilitaet der cytoplasmatisch-genisch vererbten maennlichen Sterilitaet (CMS) bei Roggen

Grundlage fuer die Erstellung von Hybridsorten bei Roggen ist die cytoplasmatisch-genisch vererbte maennliche Sterilitaet (CMS), die eine grossflaechige Produktion von Kreuzungssaatgut ermoeglicht. Dabei muss der Hybridmechanismus unter allen Anbaubedingungen zuverlaessig funktionieren. Im Projekt soll dieser Mechanismus auf seine Umweltsensibilitaet untersucht werden. In zweijaehrigen Feldversuchen an zehn oekologisch stark divergierenden europaeischen Standorten soll der Pollensterilitaetsgrad von 58 Genotyp-/Plasmotyp-Kombinationen visuell und mikroskopisch erfasst werden. Dabei kommen vier cms-induzierende Plasmen verschiedener Herkunft zum Einsatz, um die Variabilitaet zwischen unterschiedlichen Plasmotypen pruefen zu koennen. In Hohenheim wird der Anbau zudem unter kontrollierten Bedingungen im Gewaechshaus erfolgen. Die Untersuchungen sollen Aufschluss ueber die Bedeutung der natuerlichen Standortfaktoren und moegliche Wechselwirkungen zwischen Genotyp, Plasmotyp und Umwelt geben. Sie sind Voraussetzung fuer weiterfuehrende Studien auf molekularer Ebene und liefern wichtige Informationen fuer die praktische Zuechtung und Hybridsaatguterzeugung.

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