Underwater radiated noise from small recreational vessels can have significant ecological impacts on near-shore habitats, yet it is often overlooked in soundscape assessments. The objective of this study is to present measured source levels for small recreational vessels and to evaluate an existing source level model (JOMOPANS-ECHO model). The existing model was developed based on data from larger vessels, and the current stud...

In this paper, a methodology is presented for modelling underwater noise emissions from ships based on realistic vessel activity in the Baltic Sea region. This paper combines the Wittekind noise source model with the Ship Traffic Emission Assessment Model (STEAM) in order to produce regular updates for underwater noise from ships. This approach allows the construction of noise source maps, but requires parameters which are not...

Summary Bacteria are major drivers of biogeochemical nutrient cycles and energy fluxes in marine environments, yet how bacterial communities respond to environmental change is not well known. Metagenomes allow examination of genetic responses of the entire microbial community to environmental change. However, it is challenging to link metagenomes directly to biogeochemical process rates. Here, we investigate metagenomic respon...