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Muschelkulturbezirke im Nationalpark Schleswig-Holsteinisches Wattenmeer 2020 Sept.

Der Datensatz beinhaltet die vom Ministerium für Energiewende, Landwirtschaft, Umwelt und ländliche Räume per Verordnung vom 17.03.2017 ausgewiesenen Miesmuschelkulturbezirke sowie die Änderungen vom 4.8.2020 und dem 1.9.2020 in den Küstengewässern Schleswig-Holsteins. | Prüfung: Inhaltlicher Abgleicht | Prüfungsbeschreibung: Vergleich mt Verordnungsangaben | Dateninhalt (Bild): Inhaltlicher Abgleicht

Fliessgewässer Chemie

Bei der qualitativen Überwachung der Fließgewässer stehen die Erfassung der verschiedenen physikalischen und chemischen Belastungen und ihre Auswirkungen auf die aquatischen Lebensgemeinschaften sowie die Erfolgskontrolle eingeleiteter Maßnahmen im Vordergrund. Sie erfolgt seit 1993 auf der Grundlage der jährlich durch das Ministerium für Klimaschutz, Landwirtschaft, ländliche Räume und Umwelt M-V (LM) herausgegebenen Gewässerüberwachungserlasse. Der Schwerpunkt der Untersuchungen in Wasserproben liegt bei den gut wasserlöslichen Stoffen, während Stoffe, die sich in Schwebstoffen und in Biota (z.B. Fische oder Muscheln) anreichern, in diesen Kompartimenten zu untersucht werden. Hierbei sind EU-Richtlinien und internationale Vereinbarungen, sowie nationale Gesetzgebung, zu berücksichtigen. Mecklenburg-Vorpommern ist ein sehr gewässerreiches Land. So umfasst das Fließgewässernetz eine Fließstrecke von mehr als 40.000 km, wovon über 8.000 km berichtspflichtig für die EU Wasserrahmenrichtlinie sind.

Size-frequency data of Mya arenaria from Oderbank, Baltic Sea, in June 2021

In the framework of research on impacts of trawling in the western Baltic Sea (DAM pilot mission MGF Baltic Sea), we investigated the population structure of the benthic key species Mya arenaria by measuring shell length to provide the size-frequency distribution in the marine protected area of Oderbank in the Southern Baltic Sea from June 2021. We obtained samples using vanVeen grabs inside the marine protected areas and reference areas nearby.

Size-frequency data of Macoma balthica from Oderbank, Baltic Sea, in June 2021

In the framework of research on impacts of trawling in the western Baltic Sea (DAM pilot mission MGF Baltic Sea), we investigated the population structure of the benthic key species Macoma balthica by measuring shell length to provide the size-frequency distribution in the marine protected area of Oderbank in the Southern Baltic Sea from June 2021. We obtained samples using vanVeen grabs inside the marine protected areas and reference areas nearby.

Size-frequency data of Macoma balthica from Rönnebank, Baltic Sea, in June 2023

In the framework of research on impacts of trawling in the western Baltic Sea (DAM pilot mission MGF Baltic Sea), we investigated the population structure of the benthic key species Macoma balthica by measuring shell length to provide the size-frequency distribution in the marine protected area of Rönnebank in the Southern Baltic Sea from June 2023. We obtained samples using vanVeen grabs inside the marine protected areas and reference areas nearby.

Size-frequency data of Arctica islandia from Fehmarnbelt, Baltic Sea, in June 2020

In the framework of research on impacts of trawling in the western Baltic Sea (DAM pilot mission MGF Baltic Sea), we investigated the population structure of the benthic key species Arctica islandica by measuring shell length to provide the size-frequency distribution in the marine protected area of Fehmarnbelt in the Western Baltic Sea from June 2020. We obtained samples using vanVeen grabs inside the marine protected areas and reference areas nearby.

Munition pile inventory in the German Baltic Sea, 2017 to 2024

The dataset is a spreadsheet of munition piles, their properties (e.g., number of objects, variability, burial state), and the parameters characterizing their environmental (e.g., munition compound concentrations and current velocity) and maritime (e.g., distance to various maritime uses and traffic density) surroundings in the German Baltic Sea. Data were collected over numerous cruises from 2017 to 2024. All munition piles in the dataset are located at Kolberger Heide (close to Kiel Fjord) or in the Lübeck Bay. The purpose of data acquisition was to understand the distribution and properties of dumped munitions in German waters as well as the hazards and risks they pose to maritime uses. Munition piles were annotated in multibeam echosounder data, assessed in detail in photomosaics, and analyzed using an array of geospatial analysis methods.

Zooplankton Monitoring in Zingster Strom

<p>Monitoring of zooplankton communities was conducted in Zingster Strom on behalf of University of Rostock to characterize temporal dynamics and community composition within the coastal basin. The sampling strategy was designed to capture both quantitative and qualitative aspects of the zooplankton assemblage across monthly intervals. On a single day of each month, two complementary water samples were collected. A 1 L “full sample” was obtained to provide a quantitative representation of the ambient zooplankton community. In parallel, a 5 L “net sample” was collected and concentrated using a plankton net to enhance the detection of less abundant or larger-bodied organisms that may be underrepresented in smaller volumes. The monitored taxa comprise a broad spectrum of zooplankton groups, including copepods (e.g., Eurytemora affinis, Acartia tonsa, Temora), cladocerans (e.g., Bosmina, Daphnia-like taxa such as Diaphanosoma), rotifers (e.g., Keratella, Brachionus, Filinia, Polyarthra), and various meroplanktonic larvae such as polychaete larvae, as well as early life stages of mollusks (bivalves and gastropods). This taxonomic diversity reflects the transitional nature of the ecosystem, where marine and freshwater influences shape the zooplankton community. Samples were analyzed using optical microscopy, allowing identification based on morphological characteristics. The combination of full and net sampling approaches enables a more comprehensive assessment of both dominant and rare taxa, supporting robust ecological interpretation of seasonal patterns and environmental responses. These data contribute to long-term monitoring efforts aimed at understanding zooplankton dynamics in coastal systems and their role in trophic interactions and ecosystem functioning within Zingst Bay.</p>

Seawater carbonate chemistry and physiology of Baltic blue mussels (Mytilus edulis)

Increased maintenance costs at cellular, and consequently organism level, are thought to be involved in shaping the sensitivity of marine calcifiers to ocean acidification (OA). Yet, knowledge of the capacity of marine calcifiers to undergo metabolic adaptation is sparse. In Kiel Fjord, blue mussels thrive despite periodically high seawater PCO2, making this population interesting for studying metabolic adaptation under OA. Consequently, we conducted a multi-generation experiment and compared physiological responses of F1 mussels from 'tolerant' and 'sensitive' families exposed to OA for 1 year. Family classifications were based on larval survival; tolerant families settled at all PCO2 levels (700, 1120, 2400 µatm) while sensitive families did not settle at the highest PCO2 (>=99.8% mortality). We found similar filtration rates between family types at the control and intermediate PCO2 level. However, at 2400 µatm, filtration and metabolic scope of gill tissue decreased in tolerant families, indicating functional limitations at the tissue level. Routine metabolic rates (RMR) and summed tissue respiration (gill and outer mantle tissue) of tolerant families were increased at intermediate PCO2, indicating elevated cellular homeostatic costs in various tissues. By contrast, OA did not affect tissue and routine metabolism of sensitive families. However, tolerant mussels were characterised by lower RMR at control PCO2 than sensitive families, which had variable RMR. This might provide the energetic scope to cover increased energetic demands under OA, highlighting the importance of analysing intra-population variability. The mechanisms shaping such difference in RMR and scope, and thus species' adaptation potential, remain to be identified.

Küstengewässer Chemie

Bei der qualitativen Überwachung der Küstengewässer stehen die Erfassung der verschiedenen physikalischen und chemischen Belastungen und ihre Auswirkungen auf die aquatischen Lebensgemeinschaften sowie die Erfolgskontrolle eingeleiteter Maßnahmen im Vordergrund. Sie erfolgt seit 1993 auf der Grundlage der jährlich durch das Ministerium für Klimaschutz, Landwirtschaft, ländliche Räume und Umwelt M-V (LM) herausgegebenen Gewässerüberwachungserlasse. Der Schwerpunkt der Untersuchungen in Wasserproben liegt bei den gut wasserlöslichen Stoffen, während Stoffe, die sich in Sedimenten und in Biota (z.B. Fische oder Muscheln) anreichern, in diesen Kompartimenten zu untersucht werden. Hierbei sind EU-Richtlinien und internationale Vereinbarungen, sowie nationale Gesetzgebung, zu berücksichtigen. Mecklenburg-Vorpommern hat eine Küstenlänge von 1.712 Kilometer, davon 354 Kilometer Küste zur offenen See Die inneren Küstengewässer von der Wismarbucht im Westen bis zum Kleinen Haff im Osten weisen eine Fläche von rund 1.710 km2 auf.

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