Unprecedented, large-scale harmful algal blooms (HABs) dominated by Karenia selliformis occurred off the southeastern coast of Hokkaido, Japan, from late September to early November 2021, about a month after intense and extensive marine heatwaves (MHWs) had subsided. The aims present study were understand mechanism development, maintenance, decay HABs as well investigate effect MHWs on HABs. We...

More than 25 years ago, the author was asked to provide a retrospective analysis of the global status of what were then called “red tides”, but are now known as “harmful algal blooms” or HABs. The occasion was an international conference in Takamatsu, Japan (Okaichi et al. 1989), convened at a time when algal blooms seemed to be affecting more and more countries and causing increased economic l...

Harmful algal blooms (HABs) have adverse effects on marine ecosystems. An effective approach for detecting, monitoring, and eventually predicting the occurrences of such events is required. By combining a singular value decomposition (SVD) satellite remote sensing observations, we propose algorithm to detect delineate species-specific HABs. We implemented tested proposed SVD HABs associated wit...

Models used to study harmful algal blooms are a subset of those used to examine more general planktonic processes. Most models have been heuristic, examining the likelihood of certain processes generating a harmful algal bloom. Several models have been more closely coupled to field data and have been used to gain insights into the dynamics underlying the observations. As better physical and bio...

Little is known about the transport and fate of aerosolized particles associated with harmful algal blooms (HABs).

Harmful algal blooms (HABs) are overgrowths of toxic strains algae (diatoms, green) and cyanobacteria (blue-green algae). While occurring naturally, human-induced environmental changes have resulted in more frequent occurrences such worldwide. Meantime, the ecotoxicological risk HABs is rarely evaluated by means standard test methods. For first time, genotoxic potential HAB event 2020 was asses...

Abstract The presence and status of harmful algal blooms (HABs) in Japan are reviewed, revealing a decrease red tides; however, toxic found to be increasing western Japan. Environmentally friendly control strategies against HABs also compared with integrated agricultural pest management. Very high densities (10 5 –10 8 CFU/g) algicidal growth-inhibiting bacteria were biofilm on seagrass seaweed...

Harmful algal blooms (HABs) constitute a global problem, affecting aquatic ecosystems, human health, fisheries and local economies. The Bay of Bengal, along the Bangladesh coast, is exceedingly suffering from pollution or anthropogenic nutrification that influences frequently occurring HAB species. progression climate change eutrophication invigorate trends responses in turn affect respective c...