Navigation Links
New species of deep-sea catshark described from the Galapagos

SAN FRANCISCO (March 7, 2012) Scientists conducting deep-sea research in the Galapagos have described a new species of catshark, Bythaelurus giddingsi, in the March 5 issue of the journal Zootaxa. The new shark is approximately a foot long and has a chocolate-brown coloration with pale, irregularly distributed spots on its body. The spotted patterns appear to be unique to each individual. John McCosker of the California Academy of Sciences collected the first specimens of this new catshark while diving to depths of 1,400 - 1,900 feet aboard the Johnson Sea-Link submersible.

"The discovery of a new shark species is always interesting, particularly at this time when sharks are facing such incredible human pressure," said McCosker, Chair of Aquatic Biology at the Academy and lead author on the paper. "Many species have become locally rare and others verge on extinction due to their capture for shark-fin soup. The damage to food webs is dramatic, since sharks provide valuable ecological services as top-level predatorswhen they disappear, their niche is often filled by other species that further imbalance ecosystems. Most deepwater shark species are not very susceptible to overfishing; however, since this catshark's range is restricted to the Galapagos, its population is likely limited in size, making it more susceptible than more widely distributed species."

The California Academy of Sciences sent its first scientific expedition to the Galapagos Islands in 1905 and has since organized dozens of return trips. As a result, the Academy is now home to the world's most comprehensive collection of scientific specimens from these famous islands. Most Academy field work in the Galapagos today focuses on the marine environment, where dozens of new species have been discovered in recent decades. In the 1990s, McCosker made a series of dives inside the submersible Johnson Sea-Link to explore the marine life on the islands' steep volcanic slopes and sandy bottoms. Submersibles allow scientists to explore a vast part of the Galapagos that was not accessible to Charles Darwin or earlier Academy scientists. It was during two such dives in 1995 and 1998 that McCosker collected the seven specimens used to describe B. giddingsi. Using research collections at the Academy and elsewhere as a basis for comparison, Academy Research Associate Douglas Long and Smithsonian Institution scientist Carole Baldwin worked with McCosker to confirm that the specimens did indeed represent a new species.


Contact: Andrew Ng
California Academy of Sciences

Related biology news :

1. Carp dominate crayfish in invasive species battleground
2. Leatherback turtle migration study identifies Pacific danger zones for endangered species
3. Polysternon isonae, a new species of turtle that lived with dinosaurs in Isona
4. A new species of bamboo-feeding plant lice found in Costa Rica
5. Prolific plant hunters provide insight in strategy for collecting undiscovered plant species
6. New biodiversity map of the Andes shows species in dire need of protection
7. UF study: Rules may govern genome evolution in young plant species
8. New species of tiny frog is worlds smallest vertebrate
9. Extinct for 150 years, an iconic Galpagos giant tortoise species lives
10. Wildlife Conservation Society announces new snake species
11. Identifying sloth species at a genetic level
Post Your Comments:
Related Image:
New species of deep-sea catshark  described from the Galapagos
(Date:4/15/2016)... CHICAGO , April 15, 2016  A ... companies make more accurate underwriting decisions in a ... offering timely, competitively priced and high-value life insurance ... health screenings. With Force Diagnostics, rapid ... and lifestyle data readings (blood pressure, weight, pulse, ...
(Date:4/14/2016)... , April 14, 2016 ... Malware Detection, today announced the appointment of Eyal ... new role. Goldwerger,s leadership appointment comes at ... heels of the deployment of its platform at several ... biometric technology, which discerns unique cognitive and physiological factors, ...
(Date:3/31/2016)... 31, 2016   ... the "Company") LegacyXChange is excited to release ... soon to be launched online site for trading 100% ... ) will also provide potential shareholders a sense of ... to an industry that is notorious for fraud. The ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 2016  Global demand for enzymes is forecast ... to $7.2 billion.  This market includes enzymes used ... biofuel production, animal feed, and other markets) and ... Food and beverages will remain the largest market ... of products containing enzymes in developing regions.  These ...
(Date:6/27/2016)... June 27, 2016  Sequenom, Inc. (NASDAQ: ... healthier lives through the development of innovative products and ... the United States denied its petition ... claims of Sequenom,s U.S. Patent No. 6,258,540 (",540 Patent") ... established by the Supreme Court,s Mayo Collaborative Services v. ...
(Date:6/27/2016)... ... 2016 , ... Parallel 6 , the leading software as a service ... Virtual Patient Encounter CONSULT module which enables both audio and video telemedicine communication ... , Using the CONSULT module, patients and physicians can schedule a face to face ...
(Date:6/27/2016)... ... June 27, 2016 , ... Rolf K. Hoffmann, former ... of the University of North Carolina Kenan-Flagler Business School effective June ... UNC Kenan-Flagler, with a focus on the school’s international efforts, leading classes and ...
Breaking Biology Technology: