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An algal bloom is the rapid increase of the algae population in aquatic ecosystems, both in fresh and marine waters, where it is known as either water bloom or marine bloom, respectively. They thrive where there is an abundance of two nutrients; phosphorus and nitrogen, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) … Read more
Abstract Global trends in the occurrence, toxicity and risk posed by harmful algal blooms to natural systems, human health and coastal economies are poorly constrained, but are widely thought to be increasing due to climate change and nutrient pollution. Here, we conduct a statistical analysis on a global dataset extracted from the Harmful Algae Event … Read more
One of the Bay Area’s largest algae blooms in recent memory could intensify with the arrival later this week of the longest, most intense heat wave of the year — creating pitch-perfect conditions for the toxic algae to potentially kill even more fish across the San Francisco Bay, experts and water regulators said Monday. The … Read more
Harmful algal blooms are becoming more frequent, intense, and are now widely recognized as a public threat. For this reason, now more than ever, water quality monitors, managers and industries such as aquaculture need reliable tools that can help them monitor, reduce, and manage the impacts of harmful algal blooms Why would commercial aquaculture monitor … Read more
Heterosigma akashiwo, a Fish-Killing Flagellate Abstract : 1. Introduction 2. H. akashiwo Taxonomy and Morphology 3. The Physiological Effects of Temperature, Light, and Salinity on H. akashiwo 4. Nutrients Impact 5. Climate Change and Global Warming 6. H. akashiwo Cyst Formation 7. H. akashiwo Fish-Killing Mechanisms Asphyxiation by covering fish gills and physical damage as … Read more
What are harmful algal blooms? Algal blooms occur naturally with phytoplankton or microalgae providing food for aquatic organisms. However, some algal blooms are harmful. Harmful algal blooms can be divided into three groups. The first group comprises species that are normally harmless. However, when these species occur in dense blooms, they can cause fish and … Read more
What killed the fish? How do I clean them up? How do I prevent fish kills? Aquatic professionals will get these questions a lot during their career. There are generally four causes of fish kills —both separate and related —including oxygen depletion, algal blooms, toxicity, and disease. The solutions are described below as we discuss … Read more
Effects of Harmful Algal Blooms on Fish and Shellfish Species: A Case Study of New Zealand in a Changing Environment Abstract : 1. Introduction New Zealand Aquaculture and HABs 2. Effects of Bloom Forming HAB Species on Species of Relevance to the NZ Aquaculture Industry 2.1. Alexandrium and Gymnodinium spp. 2.2. Karenia spp. 2.3. Dinophysis … Read more
Algal Toxins in Seafood and Drinking Water () About this ebook This volume provides definitive information on the identification of toxin marine and freshwater algae, the routine analysis and effects of algal toxins, their veterinary and public health impact, and on control measures in current use. Professionals in the food and water industry, and those … Read more