Navigation Links
Genetics reveals big fish that almost got away
Date:8/21/2008

Researchers from the University of Hawaii, the Wildlife Conservation Society, Smithsonian Tropical Research Institute, National Marine Fisheries Service and Projecto Meros do Brazil discovered a new species of fisha grouper that reaches more than six feet in length and can weigh nearly 1,000 pounds. This newly discovered species can be found roaming the tropical reefs of the Eastern Pacific Ocean.

Was the massive fish hiding among the corals and sea grass to evade marine biologists? No, it was just a case of mistaken identity, as explained in a recent genetic study in the journal Endangered Species Research.

It turns out that goliath in the Atlanticwhich inhabit the tropical waters of the Americas and western Africaare not the same groupers that swim in Pacific waters, even though they look identical.

"For more than a century, ichthyologists have thought that Pacific and Atlantic goliath grouper were the same species, and the argument was settled before the widespread use of genetic techniques. The genetic data were the key to our finding: two species, one on each side of the isthmus.," said Dr. Matthew Craig of the Hawaii Institute of Marine Biology, lead author of the study.

Because the two populations of grouper are identical in body form and markings, they were both considered part of the same species: Epinephelus itajara. About three-and-a-half million years agobefore the Caribbean and the Pacific became separated by present-day Panamathey were the same species.

Since that time, the two populations have evolved into genetically distinct populations. While testing the hypothesis that Pacific and West Atlantic grouper were the same species, the research team found significant differences in the DNA from both populations. The differences indicate that the two populations have effectively evolved into two separate species after being separated from one another by Central America. The new Pacific species is now classified as Epinephelus quinquefasciatus. E. itajara is currently listed as critically endangered to extinction in the World Conservation Union's Red List of Endangered Species of Fauna and Flora. Due to its scarcity, E. quinquefasciatus may also be considered critically endangered.

"In light of our new findings, the Pacific goliath grouper should be treated with separate management and conservation strategies," said WCS researcher Dr. Rachel Graham, a co-author on the study and convener of the first International Symposium on Goliath grouper which provided the impetus for this highly collaborative study.


'/>"/>

Contact: Steve Fairchild
sfairchild@wcs.org
718-220-5189
Wildlife Conservation Society
Source:Eurekalert  

Related biology news :

1. Study finds connections between genetics, brain activity and preference
2. The genetics of the white horse unraveled
3. The epigenetics of increasing weight through the generations
4. Sociological research shows combined impact of genetics, social factors on delinquency
5. Spradling receives Gruber Foundation Genetics Prize for new genetic techniques
6. Genetics of ALS progression
7. Scientists dig deeper into the genetics of schizophrenia by evaluating microRNAs
8. American College of Medical Genetics makes genetic testing recommendations in new policy statement
9. Concentrating on different aspects of pain leads to breakthrough in migraine genetics
10. Largest ever study of genetics of common disease just got bigger
11. Reflecting on the social implications of human genetics research -- past, present and future
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genetics reveals big fish that almost got away
(Date:2/8/2017)... 2017 About Voice Recognition Biometrics Voice recognition ... against a stored voiceprint template. Acoustic features of ... tone are compared to distinguish between individual voices. ... most PCs already have a microphone and can ... biometrics are most likely to be deployed in ...
(Date:2/8/2017)... Report Highlights ... The global synthetic-biology market reached nearly $3.9 billion in ... a compound annual growth rate (CAGR) of 24.0% through 2021. ... for synthetic biology. - Analyses of global market trends, with ... annual growth rates (CAGRs) through 2021. - Coverage of core ...
(Date:2/8/2017)... Report Highlights The global biosurgery ... billion in 2016 at a compound annual growth rate ... Includes - An overview of the global market for ... from 2015 and 2016, and projections of compound annual ... market on the basis of product type, source, application, ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... Feb. 23, 2017  MIODx announced today that ... key immunotherapy technologies from the University of California, ... method to monitor a patient for response to ... CTLA-4.  The second license extends the technology with ... likely to have an immune-related adverse event (IRAE) ...
(Date:2/23/2017)... 23, 2017  Seattle,s upscale Capitol Hill neighborhood, with its swanky ... for a head lice treatment salon to set up shop. ... restaurant and a French bistro on E Madison Ave, and ... just any old lice clinic, we pride ourselves on being ... release some of the stigma associated with lice. Everyone can ...
(Date:2/23/2017)... ... February 23, 2017 , ... Brain Sentinel, ... begin marketing the SPEAC® System, the Brain Sentinel® Seizure Monitoring and Alerting System. ... healthcare facilities during periods of rest. A lightweight, non-invasive monitor is placed on ...
(Date:2/23/2017)... ... February 23, 2017 , ... ... annual Inventors Recognition Reception at Purdue Research Park of West Lafayette, ... in recognition of outstanding contributions to, and success with, commercializing discoveries from Purdue ...
Breaking Biology Technology: