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Topic Review
Reciprocal Effects of Metal Mixtures on Phytoplankton
Phytoplankton are a key part of marine and freshwater ecosystems as primary producers of the food web. They are exceptional in their role in heavy metals bioremediation. Algae and cyanobacteria when exposed to metals in mixture, show altered responses as compared to the single metal exposure. Algal parameters such as growth, chlorophyll content, photosynthesis, metal uptake and metabolism, or lipid profile are commonly determined to find out the level of stress in algal cells resulting from heavy metals. Phytoplankton have several pathways of metal entry, detoxification and tolerance. It is essential to estimate reciprocal toxicity of metals as in real-time, metals are released in the environment in bulk (reciprocal effects). Phytoplankton can be a powerful tool in such risk assessments. 
  • 554
  • 22 Feb 2024
Topic Review
Climate Change and Salmonid Distribution
Salmonids are a cold-water species. Global warming will generally have a major impact on their success. Historically, climatic variability has affected the patterns of abundance in Atlantic salmon and Pacific salmon populations. Climate change will continue to affect not only smolting and migration but also instream habitats across all seasons.
  • 502
  • 03 Aug 2023
Topic Review Peer Reviewed
One Health Observatories—The Example of Southeast Asia
One Health Observatories operationalize the One Health approach. The One Health Joint Plan of Action drafted by the Quadripartite (WHO, FAO, WOAH, and UNEP) insists on the need to strengthen scientific evidence-based knowledge and its translation into data for evidence, technical tools, protocols, guidelines, and information and surveillance systems for the effective implementation of One Health at all levels. One Health Observatories are crucial for this task. Drawing from the experience of the existing One Health Observatory in Thailand—a unique, on-the-ground initiative—we outline the key features of this model for potential replication in other regions or countries. Such observatories play a critical role in advancing ecosystem-based innovations and locally adapted solutions, which are necessary to improve the prevention of disease transmission at the interface between human, animal, and ecosystem health.
  • 141
  • 15 Aug 2025
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