Exploring a deep-sea ridge off Northern California, scientists at the Monterey Bay Aquarium Research Institute (MBARI) have discovered a unique undersea nursery, where groups of fish and octopus brood their eggs, like chickens on their nests. This is the first time that marine biologists have directly observed any deep-sea fish brooding its eggs. It is also the first time that two different types of mobile deep-sea animals have been observed brooding together in the same area. Although the scientists do not know exactly why the animals prefer this one area, they believe that the nursery represents a new type of biological “hot spot” (an area of intense biological activity).
A blob sculpin (Psychrolutes phrictus) peers over the edge of a boulder at the ROV Tiburon. This fish is guarding its eggs (which you can see in the background) along the Gorda Escarpment, off Northern California. Blob sculpin commonly grow to 60 cm (2 feet) in length. The animals on the rock are brisingid sea stars (with the feathery arms) and sea anemones. Image (c) 2002 MBARI
Three octopus (Graneledone sp.) brood their eggs on a rock outcrop along the Mendocino Escarpment, offshore of Northern California. The octopus are in a typical brooding position, with their heads down and arms curled outward. Their eggs are hidden underneath their bodies, which are about 16 cm (6 inches) across. Also on the rock are a deep-sea crab and several types of sea anemones. This photograph suggests some of the abundance and diversity of marine life found around the undersea nursery areas along the Gorda Escarpment off Northern California. Image (c) 2002 MBARI
MBARI scientist Jeff Drazen presented these observations last week at the Deep Sea Biology Symposium in Coos Bay, Oregon. His research is also featured in the current (August 2003) issue of Biological Bulletin, which shows photographs of the brooding fish and octopus on its cover.
The undersea nursery was discovered and documented using MBARI’s remotely operated vehicle (ROV) Tiburon. Using video tapes from Tiburon dives, Drazen and colleagues found that each summer, blob sculpin (Psychrolutes phrictus) and deep-sea octopus (Graneledone sp.) gather together at the crest of the Gorda Escarpment, off Northern California.
Debbie Meyer | MBARI
Researchers invent tiny, light-powered wires to modulate brain's electrical signals
21.02.2018 | University of Chicago
The “Holy Grail” of peptide chemistry: Making peptide active agents available orally
21.02.2018 | Technische Universität München
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
21.02.2018 | Life Sciences
21.02.2018 | Life Sciences
21.02.2018 | Materials Sciences