The free online series of short videos are designed to provide basic, jargon-free scientific information on harmful algal blooms: what they are; where they live and grow; and causes, impacts, and potential mitigation of blooms. The series is directed toward resource managers and decision-makers as well as the general public.
Scientists have discovered dramatic changes in the chemistry and composition of Sargassum, floating brown seaweed, transforming this vibrant living organism into a toxic “dead zone.” Results suggest that increased nitrogen availability from natural and anthropogenic sources, including sewage, is supporting blooms of Sargassum and turning a critical nursery habitat into harmful algal blooms with catastrophic impacts on coastal ecosystems, economies, and human health. Globally, harmful algal blooms are related to increased nutrient pollution.
Despite many occurrences of red tide and blue green algae in Florida waters, the understanding of the health effects of exposure to these blooms is limited. Researchers will evaluate short- and long-term health effects of exposure to harmful algal blooms (HABS) in Florida to capture key areas of human exposure and a wide demographic population profile. They also will evaluate the potential effect of exposure to COVID-19 on susceptibility to HABs and health outcomes in this study population.
Researchers are developing a comprehensive sensing and information visualization package that will augment Florida’s existing monitoring programs for Lake Okeechobee, the second largest lake within the contiguous U.S. It will expand water, sediment, and biological measurements using innovative harmful algal bloom detection and environmental characterization technologies to allow pinpointing problem areas prior to or early on when harmful algal blooms are emerging in Lake Okeechobee. These harmful blooms are annual occurrences due to favorable environmental conditions.
Dr. Timothy Davis, the Patrick L. & Debra (Scheetz) Ryan Endowed Professor at BGSU, was one of nine international researchers recently named to the Scientific Steering Committee (SSC) for GlobalHAB, an international program that is jointly sponsored by the Scientific Committee on Oceanic Research (SCOR) and Intergovernmental Oceanographic Commission (IOC) of UNESCO.
Genetic clues show that eelgrass growing underwater along Puget Sound shorelines is associated with fewer of the single-celled algae that produce harmful toxins in shellfish. The evidence shows this effect extends 45 feet beyond the edge of the eelgrass bed.
New Brunswick, N.J. (April 16, 2020) – In celebration of the 50th anniversary of Earth Day on April 22, Rutgers Cooperative Extension will offer an “Earth Day at Home” webinar series. The webinars, on Mondays from April 20 to June…
There are no limits specific to airborne concentrations of microcystins (blue-green algae) or inhalation guidelines. Little is known about recreational and occupational exposure to these toxins. New research provides evidence of aerosol exposure to microcystins in coastal residents. Researchers detected microcystin in the nasal passages of 95 percent of the participants; some who reported no direct contact with impacted water. Results also showed higher concentrations among occupationally exposed individuals and demonstrated a relationship between nasal and water microcystin concentrations.
Imagine a device that could swiftly analyze microbes in oceans and other aquatic environments, revealing the health of these organisms – too tiny to be seen by the naked eye – and their response to threats to their ecosystems. Rutgers researchers have created just such a tool, a portable device that could be used to assess microbes, screen for antibiotic-resistant bacteria and analyze algae that live in coral reefs. Their work is published in the journal Scientific Reports.