Researchers who've gotten the first look at a deep-sea 'dumbo' octopod hatchling report in Current Biology on Feb. 19 that the young octopods look and act much like adults from the moment they emerge from an egg capsule. Dumbo octopods are so named because their fins resemble Dumbo the elephant's ears.
In an effort to create a power source for future implantable technologies, a team of researchers developed an electric eel-inspired device that produced 110 volts from gels filled with water, called hydrogels. Their results show potential for a soft power source to draw on a biological system's chemical energy. Anirvan Guha will present the research during the 62nd Biophysical Society Annual Meeting, Feb. 17-21.
A new study finds 73 percent of mesopelagic fish caught in the Northwest Atlantic had microplastics in their stomachs -- one of the highest levels globally. Typically living at depths of 200-1,000 meters, these fish could spread microplastic pollution throughout the marine ecosystem, by carrying microplastics from the surface down to deeper waters. They are also prey for fish eaten by humans, meaning that microplastics could indirectly contaminate our food supply.
Audio recordings of Hurricanes Irma and Maria's passage over Puerto Rico document how the calls of coastal critters changed in response to the deadly storms. The hurricanes caused a major disruption in the acoustic activity of snapping shrimp, a reduction in insect and bird sounds, and potentially an intensification of fish choruses, according to new research presented at the Ocean Sciences Meeting Friday.
Internationally recognized oil spill expert, Nancy Kinner, a professor of civil and environmental engineering at the University of New Hampshire is available to discuss new post-Deepwater Horizon (DWH) dispersant research and its use in future oil spill responses.
An international team of scientists has identified the neural circuits that enable cuttlefish to change their appearance in just the blink to eye -- and discovered that this is similar to the neural circuit that controls iridescence in squids.
Wouldn't it be useful to suddenly erect 3-D spikes out of your skin, hold them for an hour, then even faster retract them and swim away? Octopus and cuttlefish can do this as a camouflage tactic. A new study clarifies the neural and muscular mechanisms that underlie this extraordinary defense tactic, conducted by scientists from the Marine Biological Laboratory (MBL), Woods Hole, and the University of Cambridge, UK, and published in iScience.
Unlike squid, bottom-dwelling cuttlefish may be able to put one key aspect of their camouflage on autopilot. Marine Biological Laboratory and University of Cambridge researchers report that these cephalopods can lock in the 3-D textured shape of their dynamic skin for over an hour without nervous system input. This physiology is thought to help cuttlefish save energy as they camouflage from predators, wait for prey, or digest food. The study appears Feb. 15 in iScience.
When simulating future environmental conditions researchers face a problem: laboratory experiments are easy to control and to reproduce, but are insufficient to mimic the complexity of natural ecosystems. In contrast, experiments under real conditions in nature are much more complicated and difficult to control. Scientist of the GEOMAR Helmholtz Centre for Ocean Research Kiel have combined both approaches to investigate the response of a major plankton species to increasing ocean acidification. The results have now been published in the international journal Nature Ecology and Evolution.
Over the last 125 years, and particularly after an uptick in industrial fishing since 1950, North Pacific seabirds -- typically fish consumers -- have shifted their prey preferences, a new study reports; they are eating lower on the food chain, consuming more squid.