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Monitoring of Anchovy Schools by a Glider‐Mounted Echo Sounder in the South‐Eastern Bay of BiscayNARA Subscribed
Effective monitoring of pelagic fish populations is crucial for sustainable fisheries management. Traditional vessel‐based acoustic surveys often lack the temporal coverage needed to capture dynamic fish distribution and behaviour in response to short‐term environmental drivers, such as gales. This study evaluates the reliability of an active‐acoustic glider for monitoring European anchovy ( Engraulis encrasicolus ) schools in...
Can Hematological Biomarkers Indicate Diagnoses and Prognosis in Stranded Harbor Seals ( Phoca vitulina )?NARA Subscribed
Wildlife health assessments offer critical insights in applied ecological research, but their interpretation is often limited by missing complementary data. There is heightened need for such data for European harbor seals ( Phoca vitulina vitulina ) given their recent population decline. We investigated trends in and hematological markers of health and survival of pre‐ and post‐ weaned harbor seal pups using a 10‐year rehabili...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
No Future Growth Enhancement Expected at the Northern Edge for European Beech due to Continued Water LimitationNARA Subscribed
With ongoing global warming, increasing water deficits promote physiological stress on forest ecosystems with negative impacts on tree growth, vitality, and survival. How individual tree species will react to increased drought stress is therefore a key research question to address for carbon accounting and the development of climate change mitigation strategies. Recent tree‐ring studies have shown that trees at higher latitude...
Ocean practices, intended as a wide spectrum of methodologies supporting ocean-related research, operations, and applications, are constantly developed and improved to enable informed decision-making. Practices start from the idea of an individual or a group and often evolve towards what can be called good or best practices. This bottom-up approach may in principle result in different paths for the evolution of each practice,...
Global concern on extreme events is increasing the need for real time monitoring of the wave fields in coastal areas. High Frequency (HF) radars, a remote sensing technology widely applied to measure near real time surface coastal currents with demonstrated accuracy, can also play a major role in the operational monitoring of waves height, period and direction. However, the ability of HF radar to measure waves can be jeopardiz...
The bleak Alburnus alburnus is a medium body-size leuciscid fish that is naturally distributed across central European and western Asian fresh waters. However, during the last two decades A. alburnus has been widely introduced elsewhere in Europe and in northern Africa, mostly as a forage species for game fishes. Given its relatively recent history of invasion in non-native Eurasian waters, where it can become highly abundant,...
The EuroGOOS Coastal working group examines the entire coastal value chain from coastal observations to services for coastal users. The main objective of the working group is to review the status quo, identify gaps and future steps needed to secure and improve the sustainability of the European coastal service provision. Within this framework, our white paper defines a EuroGOOS roadmap for sustained “community coastal downstre...
Although rivers contribute to the flux of litter to the marine environment, estimates of riverine litter amounts and detailed studies on floating riverine litter behaviour once it has reached the sea are still scarce. This paper provides an analysis of the seasonal behaviour of floating marine litter released by rivers within the south-eastern Bay of Biscay based on riverine litter characterizations, drifters, and high-frequen...
Increased Incidence of Entanglements and Ingested Marine Debris in Dutch Seals from 2010 to 2020OA Marine
In recent decades, the amount of marine debris has increased in our oceans. As wildlife interactions with debris increase, so does the number of entangled animals, impairing normal behavior and potentially affecting the survival of these individuals. The current study summarizes data on two phocid species, harbor (Phoca vitulina) and gray seals (Halichoerus grypus), affected by marine debris in Dutch waters from 2010 to 2020....
Oxygen consumption in relation to current velocity and morphology in the highly invasive crayfish Procambarus clarkiiNARA Subscribed
The red swamp crayfish ( Procambarus clarkii ) is the most widely spread freshwater crayfish worldwide. Competing physiological traits can influence invasion success in any given environment by limiting the available scope for aerobically demanding activities. While high flows have been associated with reduced crayfish movement upstream, the effects of flow alteration on their metabolic demands have been largely overlooked. In...