In February 2009, black abalone was listed as endangered under the Endangered Species Act, and the Act requires critical habitat be designated, to the maximum extent prudent and determinable, whenever a species is listed for protection.
Once areas are designated as critical habitat, federal projects or permits and projects with federal funding are required to ensure their actions do not adversely modify the animal's habitat. Designating critical habitat does not affect citizens engaged in activities on private land that do not involve a federal agency.
Since the 1980s, the black abalone population has plummeted primarily from a bacterial disease known as withering syndrome. The impacts of withering syndrome may have been worsened by the warming of coastal waters from long-and-short-term changes in climate or from power plants' discharge of warm water. Other causes that likely contributed to the decline in black abalone populations are historical overfishing and poaching.
From Del Mar Landing Ecological Reserve to Point Bonita.
From the southern point at the mouth of San Francisco Bay to Natural Bridges State Beach.
From Pacific Grove to Cayucos.From Montaña de Oro State Park to just south of Government Point.
The circumference of: the Farallon Islands; Año Nuevo Island; San Miguel Island; Santa Rosa Island; Santa Cruz Island; Anacapa Island; Santa Barbara Island; and Santa Catalina Island.
NOAA's Fisheries Service excluded the area of rocky habitat from Corona Del Mar State Beach to Dana Point from the designation, because the economic benefits of exclusion outweigh the benefits of inclusion, and the exclusion will not result in the extinction of the species. It was also determined that San Clemente Island and San Nicolas Island were no longer eligible for designation due to the development of integrated natural resources management plans that provide benefits to black abalone.
Jim Milbury | EurekAlert!
Sinking groundwater levels threaten the vitality of riverine ecosystems
04.10.2019 | Albert-Ludwigs-Universität Freiburg im Breisgau
A very special kind of light is emitted by tungsten diselenide layers. The reason for this has been unclear. Now an explanation has been found at TU Wien (Vienna)
It is an exotic phenomenon that nobody was able to explain for years: when energy is supplied to a thin layer of the material tungsten diselenide, it begins to...
Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have explored the initial consequences of the interaction of light with molecules on the surface of nanoscopic aerosols.
The nanocosmos is constantly in motion. All natural processes are ultimately determined by the interplay between radiation and matter. Light strikes particles...
Particles that are mere nanometers in size are at the forefront of scientific research today. They come in many different shapes: rods, spheres, cubes, vesicles, S-shaped worms and even donut-like rings. What makes them worthy of scientific study is that, being so tiny, they exhibit quantum mechanical properties not possible with larger objects.
Researchers at the Center for Nanoscale Materials (CNM), a U.S. Department of Energy (DOE) Office of Science User Facility located at DOE's Argonne National...
A new research project at the TH Mittelhessen focusses on the development of a novel light weight design concept for leisure boats and yachts. Professor Stephan Marzi from the THM Institute of Mechanics and Materials collaborates with Krake Catamarane, which is a shipyard located in Apolda, Thuringia.
The project is set up in an international cooperation with Professor Anders Biel from Karlstad University in Sweden and the Swedish company Lamera from...
Superconductivity has fascinated scientists for many years since it offers the potential to revolutionize current technologies. Materials only become superconductors - meaning that electrons can travel in them with no resistance - at very low temperatures. These days, this unique zero resistance superconductivity is commonly found in a number of technologies, such as magnetic resonance imaging (MRI).
Future technologies, however, will harness the total synchrony of electronic behavior in superconductors - a property called the phase. There is currently a...
02.10.2019 | Event News
02.10.2019 | Event News
19.09.2019 | Event News
18.10.2019 | Power and Electrical Engineering
18.10.2019 | Medical Engineering
18.10.2019 | Physics and Astronomy