Pax, Latin for 'peace' made its way into the scientific name of a new coral discovered off Pacific Panama and described in the journal Bulletin of Marine Science. According to researchers at the Smithsonian Tropical Research Institute (STRI), the Centro de Investigacion en Ciencias del Mar y Limnologia at the University of Costa Rica (CIMAR) and collaborating institutions, it alludes to the need for making peace with nature and ending the devastation of the oceans.
Psammogorgia pax, collected at a depth of 63 meters (207 feet) in Hannibal Bank --a flat-topped seamount located in Coiba National Park, a biodiversity hotspot and World Heritage Site--, is part of an unexplored and understudied marine ecosystem: the mesophotic coral communities.
These difficult-to-access habitats, found 40--150 meters deep and in-between shallow-water reefs and deep-water corals, are under increasing need for protection, yet little is known about their ecology and biodiversity.
Lately, submersibles have enabled marine scientists to explore these communities and collect samples, yielding a number of new octocoral species for the tropical eastern Pacific, including Adelogorgia hannibalis (2018), Thesea dalioi (2018) and Eugorgia siedenburgae (2013), all from the Hannibal Bank.
"Exploring the mesophotic zone and beyond has always been a challenge for scientists," said Hector M. Guzman, STRI marine ecologist. "We need submersibles or remotely operated underwater vehicles (ROVs) to search and collect specimens. Not always do we have access to these resources, but each time we go deep, we come up with something new."
P. pax is a white and fan-shaped coral. The colony is made of microscopic bone-like calcium carbonate structures, called sclerites. The composition of sclerites is characteristic for this species and differentiates it from others in the same genus, like P. arbuscula, a common shallow-water species. Until now, eastern Pacific Psammogorgia species have only been reported in shallow waters down to 30 meters (98 feet) deep. However, the occurrence of the genus in deeper waters was expected.
"Because, apart from our personal observations, we have found specimens in museum collections belonging to Psammogorgia that are the result of historical expeditions that acquired these samples by dredging down to mesophotic depths," said Odalisca Breedy, marine biologist at CIMAR and co-author of the study. "These specimens remain unidentified and have not been considered in any biodiversity assessments."
The recent discovery and description of P. pax is a valuable contribution to understanding octocoral diversity in Panama, a major component of mesophotic and deep-water coral communities. Ultimately, increasing knowledge about these ecosystems will be essential for safeguarding their long-term conservation.
Meanwhile, the marine researchers remain concerned about the future of the Hannibal Bank seamount, whose rich biodiversity has only been recently explored. They consider that the area could benefit from stronger environmental and conservation protections.
"The management of this international protected seamount could be reinforced, as it faces heavy fishing pressure," Guzman said. "The same goes for the rest of Panamanian seamounts that we haven't explored yet for lack of resources."
Members of the research team are affiliated with the Smithsonian Tropical Research Institute, the Centro de Investigacion en Ciencias del Mar y Limnologia at the University of Costa Rica, the Centro de Investigacion en Estructuras Microscopicas at the University of Costa Rica and the Department of Earth and Environmental Sciences ad Ludwig-Maximilians-Universitat Munchen. Research was partially funded by the Smithsonian Tropical Research Institute, the International Community Foundation, the Siedenburg family, Vicerrectoria de Investigacion de la Universidad de Costa Rica and the Secretaria Nacional de Ciencia, Tecnologia e Innovacion de Panama (SENACYT).
The Smithsonian Tropical Research Institute, headquartered in Panama City, Panama, is a unit of the Smithsonian Institution. The institute furthers the understanding of tropical biodiversity and its importance to human welfare, trains students to conduct research in the tropics and promotes conservation by increasing public awareness of the beauty and importance of tropical ecosystems.
Leila Nilipour | EurekAlert!
Observing changes in the chirality of molecules in real time
14.11.2019 | ETH Zurich
Pinpointing Pollutants from Space
14.11.2019 | Max-Planck-Institut für Chemie
The Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Dresden has succeeded in using Selective Electron Beam Melting (SEBM) to...
Carbon nanotubes (CNTs) are valuable for a wide variety of applications. Made of graphene sheets rolled into tubes 10,000 times smaller than a human hair, CNTs have an exceptional strength-to-mass ratio and excellent thermal and electrical properties. These features make them ideal for a range of applications, including supercapacitors, interconnects, adhesives, particle trapping and structural color.
New research reveals even more potential for CNTs: as a coating, they can both repel and hold water in place, a useful property for applications like printing,...
If you've ever tried to put several really strong, small cube magnets right next to each other on a magnetic board, you'll know that you just can't do it. What happens is that the magnets always arrange themselves in a column sticking out vertically from the magnetic board. Moreover, it's almost impossible to join several rows of these magnets together to form a flat surface. That's because magnets are dipolar. Equal poles repel each other, with the north pole of one magnet always attaching itself to the south pole of another and vice versa. This explains why they form a column with all the magnets aligned the same way.
Now, scientists at ETH Zurich have managed to create magnetic building blocks in the shape of cubes that - for the first time ever - can be joined together to...
Quantum-based communication and computation technologies promise unprecedented applications, such as unconditionally secure communications, ultra-precise...
In two experiments performed at the free-electron laser FLASH in Hamburg a cooperation led by physicists from the Heidelberg Max Planck Institute for Nuclear physics (MPIK) demonstrated strongly-driven nonlinear interaction of ultrashort extreme-ultraviolet (XUV) laser pulses with atoms and ions. The powerful excitation of an electron pair in helium was found to compete with the ultrafast decay, which temporarily may even lead to population inversion. Resonant transitions in doubly charged neon ions were shifted in energy, and observed by XUV-XUV pump-probe transient absorption spectroscopy.
An international team led by physicists from the MPIK reports on new results for efficient two-electron excitations in helium driven by strong and ultrashort...
05.11.2019 | Event News
30.10.2019 | Event News
02.10.2019 | Event News
14.11.2019 | Materials Sciences
14.11.2019 | Health and Medicine
14.11.2019 | Materials Sciences