Cornelia Jaspers1,*, Matilda Haraldsson2, Sören Bolte3, Thorsten B. H. Reusch3, Uffe H. Thygesen1 and Thomas Kiørboe1 Centre for Ocean Life, DTU-Aqua, Technical University of Denmark, Kavalergården 6, 2920 Charlottenlund, Denmark Biological and Environmental Sciences, Gothenburg University, Kristineberg 566, 45178 Fiskebäckskil, Sweden Helmholtz-Centre for Ocean Research (GEOMAR), Düsternbrooke...

What possesses a respected, retired scientist to take on the agonizing task of writing a novel and fighting to get it published? Author Joram Piatigorsky, an emeritus scientist from the National Institute of Health’s National Eye Institute, says quite simply that he had something important to say. Piatigorsky’s novel, Jellyfish Have Eyes (1), centers on a scientist who runs into trouble in an A...

Across the animal kingdom, environmental light cues are widely involved in regulating gamete release, but the molecular and cellular bases of the photoresponsive mechanisms are poorly understood. In hydrozoan jellyfish, spawning is triggered by dark-light or light-dark transitions acting on the gonad, and is mediated by oocyte maturation-inducing neuropeptide hormones (MIHs) released from the e...

Uniform silica nanoparticles and jellyfish-like nanowires were synthesized by a chemical vapour deposition method on Si substrates treated without and with Ni(NO3)2, using silicon powder as the source material. Composition and structural characterization using field emission scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy and fourier-transfor...

The potentially fatal Irukandji syndrome is relatively common in tropical waters throughout the world. It is caused by the sting of the Irukandji jellyfish, a family of box jellyfish that are almost impossible to detect in the water owing to their small size and transparency. Using collated medical records of stings and local weather conditions, we show that the presence of Irukandji blooms in ...

The potentially fatal Irukandji syndrome is relatively common in tropical waters throughout the world. It is caused by the sting of the Irukandji jellyfish, a family of box jellyfish that are almost impossible to detect in the water owing to their small size and transparency. Using collated medical records of stings and local weather conditions, we show that the presence of Irukandji blooms in ...

Pulsed-jets are commonly used for aquatic propulsion, such as squid and jellyfish locomotion. The sudden ejection of a jet with each pulse engenders the formation of a vortex ring through the roll-up of the jet shear layer. If the pulse is too long, the vortex ring will stop forming and the remainder of the pulse is ejected as a trailing jet. Recent results from mechanical pulsedjets have demon...

Citizen science projects are designed to encourage involvement of the public with science. Understanding demographics participants and factors that motivate or create barriers participation central in ensuring citizen is effective. not new Asia, but its implementation underrepresented published literature geographic area, current focus largely on Western countries. Here, we consider experience ...

Cnidarians are the most primitive animals to possess a nervous system. This phylum is composed of the classes Scyphozoa (jellyfish), Cubozoa (box jellyfish), and Hydrozoa (e.g., Hydra, Hydractinia), which make up the subphylum Medusozoa, as well as the class Anthozoa (sea anemones and corals). Neuropeptides have an early evolutionary origin and are already abundant in cnidarians. For example, f...

We investigated the effects of human activities on the pelagic food web structure of nearshore marine ecosystems. Their generic structure was established on the basis of literature review and analyzed by qualitative structural network analysis. Two main issues were addressed: (1) the role of species capable of forming harmful algal blooms (HABs) and red tides (Noctiluca spp.), as well as the ro...