The global extent and severity of operational interactions between conflicting pinnipeds and fisheries
Conservation efforts have led to the recovery of pinnipeds populations worldwide after decades of intensive hunting and culls. However, this positive development has led to conflicts with fisheries, particularly small-scale fisheries. They are almost three times more likely to come into conflict with seals, sea lions and walruses, and lose four times more of their catch than larger fisheries.
Recreational killing of wild animals can foster environmental stewardship
The authors add a new perspective to the topic of "recreational use of wild animals". The hypothesis is that an emotionally intense interaction between hunters / anglers and wild animals can create a particularly strong sense of responsibility, described as "environmental stewardship". This in turn would be an incentive for many to commit to lifelong environmental and species protection action.
Persulfate activation by biochar and iron: Effect of chloride on formation of reactive species and transformation of N,N-diethyl-m-toluamide (DEET)
This study investigated the formation of reactive species during the activation of the chemical oxidant persulfate with biochar and iron in different water types for the removal of organic contaminants. The presence of organic matter and chloride altered the reactive species formed, emphasizing that the water matrix is a critical factor for the application of this oxidation process .
Mixtures of organic micropollutants exacerbated in vitro neurotoxicity of prymnesins and contributed to aquatic toxicity during a toxic algal bloom
This study investigated how organic micropollutants and the algal toxins prymnesins interact as mixtures in water extracts from the Oder River using neurotoxic effects on human nerve cells in vitro. The authors showed that prymnesins dominate the neurotoxic effects, but many of the detected organic micropollutants exacerbate the lethal effect of prymnesins.
Unpredicted ecosystem response to compound human impacts in a European river
The authors have compiled and analyzed the key environmental factors that led to the mass development of the brackish water alga Prymnesium parvum in the Oder in the summer of 2022. The data synthesis shows how multiple stressors combined to allow an alga that normally thrives in stagnant salt water to proliferate en masse in a completely atypical habitat.
Whole-genome resequencing improves the utility of otoliths as a critical source of DNA for fish stock research and monitoring
Respiration and CO2 evasion dynamics in moving streambeds as a response to flow regimes
The haplotype-resolved Prymnesium parvum (type B) microalga genome reveals the genetic basis of its fish-killing toxins
The research team has sequenced the complete genome of the microalga from the the Oder disaster 2022 in order to identify future risk factors under which the alga multiplies and produces its toxin. They were able to identify the gene sequences that encode the toxins an important step toward an early warning system.
Unleashing the power of remote sensing data in aquatic research: Guidelines for optimal utilization
The study aimed to elucidate the tradeoffs for the utilization of remote sensing data in limnological studies with an example based on the estimation of chlorophyll a due to its importance as a water quality indicator. Assessing atmospheric correction and product limitations ensures alignment with the limnological study.
Monitoring, trends and impacts of light pollution
The "Night Watch" consortium has compiled studies that use satellite images and star observations to analyse how artificial light is changing our night sky and nocturnal environments. Almost 50 per cent of the earth's surface is affected by light pollution, with natural darkness being outshone by a factor of up to several thousand. And light pollution is increasing: 2-10% each year.