Ethical handling of fish in ecological research requires anaesthetic methods that are effective, practical, and adaptable for a diversity of field conditions. Estuarine environments, in particular, present challenges due to their fluctuating water chemistry. To improve our understanding of anaesthetic performance for field conditions, we compared AQUI-S, a commonly used clove oil-based anaesthetic, and 2-phenoxyethanol, a cost...

Integration of fish swimming performance data is critical for defining flow in fishways. However, current design approaches often rely on limited data that did not account for natural variation in locomotory capacity. To guide application of swimming performance data, we reviewed relevant literature from 1990 to 2023 and identified patterns relevant for developing fishways. Among the 167 relevant publications, non-volitional t...

Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential. One promising approach is other effective area‐based conservation measures (OECMs), which offer alternative pathways for in situ conservation. We id...

Zusammenfassung Die Studie untersucht die Entwicklung der Grundwasserstände in Deutschland anhand von 5844 Messstellen sowie deren Reaktionsdynamik gegenüber klimatologischen Antrieben im Referenzzeitraum 1991–2020. Zusätzlich wird die Entwicklung seit 2018 im Kontext der außergewöhnlichen Dürreperiode betrachtet, um die Reaktionsfähigkeit und Vulnerabilität der Grundwassersysteme gegenüber extremen klimatischen Bedingungen zu...