Even though many sea turtle populations are declining, quantifying factors that contribute to declines has been challenging. Mortality occurs on nesting beaches due to habitat loss, egg poaching, and predation. But turtles also die at sea due to accidental catches in fishing gear.
In the March issue of Ecology Letters, Duke University researchers quantify incidental catch of loggerheads (Caretta caretta) and leatherbacks (Dermochelys coricea) in the global pelagic longline fishery.
Despite infrequent encounters between turtles and longlines, the sheer magnitude of the longline fishery means more than 200,000 loggerheads and 50,000 leatherbacks were likely caught worldwide in 2000. Although not all encounters are fatal, thousands of hooked turtles die from bycatch each year. The authors report that Pacific turtles vulnerable to longline hooks have about a 50% chance of being caught per year, which means more Pacific turtles die from longline takes each year than nest there. Given 80-95% declines for Pacific loggerhead and leatherback populations, this bycatch is not sustainable.
Kate Stinchcombe | Blackwell Publishing Ltd
Machine learning helps predict worldwide plant-conservation priorities
04.12.2018 | Ohio State University
From the Arctic to the tropics: researchers present a unique database on Earth’s vegetation
20.11.2018 | Martin-Luther-Universität Halle-Wittenberg
What if a sensor sensing a thing could be part of the thing itself? Rice University engineers believe they have a two-dimensional solution to do just that.
Rice engineers led by materials scientists Pulickel Ajayan and Jun Lou have developed a method to make atom-flat sensors that seamlessly integrate with devices...
Scientists at the University of Stuttgart and the Karlsruhe Institute of Technology (KIT) succeed in important further development on the way to quantum Computers.
Quantum computers one day should be able to solve certain computing problems much faster than a classical computer. One of the most promising approaches is...
New Project SNAPSTER: Novel luminescent materials by encapsulating phosphorescent metal clusters with organic liquid crystals
Nowadays energy conversion in lighting and optoelectronic devices requires the use of rare earth oxides.
Scientists have discovered the first synthetic material that becomes thicker - at the molecular level - as it is stretched.
Researchers led by Dr Devesh Mistry from the University of Leeds discovered a new non-porous material that has unique and inherent "auxetic" stretching...
Scientists from the Theory Department of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science (CFEL) in Hamburg have shown through theoretical calculations and computer simulations that the force between electrons and lattice distortions in an atomically thin two-dimensional superconductor can be controlled with virtual photons. This could aid the development of new superconductors for energy-saving devices and many other technical applications.
The vacuum is not empty. It may sound like magic to laypeople but it has occupied physicists since the birth of quantum mechanics.
10.12.2018 | Event News
06.12.2018 | Event News
03.12.2018 | Event News
10.12.2018 | Life Sciences
10.12.2018 | Physics and Astronomy
10.12.2018 | Life Sciences