“Global issues of concern such as marine debris, ocean acidification and invasive species have the potential to degrade fragile sanctuary resources and habitats,” said Dan Howard, sanctuary superintendent. “This report provides a baseline for monitoring changes to sanctuary resources and will help us to better understand and respond to these emerging threats.”
Prepared by NOAA's Office of National Marine Sanctuaries, the peer-reviewed Cordell Bank National Marine Sanctuary Condition Report indicates that water quality in the sanctuary is generally good due to the sanctuary’s offshore location and distance from major urban population centers. Seafloor habitat quality was rated lower, primarily due to prior impacts from fishing gear that came into contact with the sanctuary’s rocky reef and soft sediment habitats.
The report notes that populations of rockfish, salmon, some seabird species, and leatherback sea turtles that use the sanctuary are depleted, but that fishery closures are helping to rebuild depleted fish stocks.
The report indicates that additional research is needed about contaminants and invasive species. While no maritime archaeological resources have been identified in the sanctuary, only 18 percent of the sanctuary seafloor has been mapped with high resolution tools that could be used to find sunken vessels.
The full sanctuary condition report is now available online. Similar reports are being developed for the other sites in the National Marine Sanctuary System.
Located 42 miles north of San Francisco, Cordell Bank National Marine Sanctuary is one of 14 marine protected areas managed by NOAA’s Office of National Marine Sanctuaries. Designated by Congress in 1989, the sanctuary’s productive waters are a destination feeding area for local and migratory marine life. Its unique rocky undersea thrives with invertebrates and fishes and is surrounded by the softer sediments of the continental shelf.
NOAA understands and predicts changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and conserves and manages our coastal and marine resources.
David Hall | EurekAlert!
Further reports about: > Marine Sanctuary Condition Report > Marine science > NOAA > Sanctuaries > Sanctuary > Seafloor habitat > fish stock > invasive species > leatherback sea turtles > marine resources > sanctuary resources > sanctuary’s rocky reef > seabird species > soft sediment habitats > urban population
Upcycling of PET Bottles: New Ideas for Resource Cycles in Germany
25.06.2018 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF
Dry landscapes can increase disease transmission
20.06.2018 | Forschungsverbund Berlin e.V.
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences