Navigation Links
UNH researchers studying spiny dogfish, Gulf of Maine's mini shark
Date:2/24/2009

DURHAM, N.H. For such a small shark species, there seems to be super-sized confusion about its population status. But for researchers at the University of New Hampshire, one thing is clear definite changes have occurred to spiny dogfish shark populations in the past two decades.

Commercial fishermen haul up nets loaded with so many of the three-foot-long sharks that the yellow-eyed creatures are often considered a nuisance. However, fishery management plans have set quotas to limit the harvest of dogfish to 3,000 pounds per trip in state waters due to concerns by scientists that the species could easily be overfished. The market for dogfish meat is located primarily in England and Germany, so dogfish caught in the Gulf of Maine are shipped overseas.

Confusion over their population status is compounded by the fact that there are relatively few recent studies to document dogfish ages, growth rates and maturity. In fact, it has been more than 20 years since the last life history study was conducted for dogfish in the Gulf.

"In order for management to be effective, we need updated and accurate biological information, we need to accurately age these fish and determine their age at maturity," says Paul Tsang, UNH professor of molecular, cellular and biomedical sciences. "To really understand what's going on with their populations, we need to understand their basic life history."

Tsang is collaborating with University of New England professors David Koester and James Sulikowski to establish basic biological information about dogfish populations in the Gulf of Maine. Spiny dogfish sharks are part of the Elasmobranch family, which includes sharks, skates and rays. With funding from N.H. Sea Grant, UNH Ph.D. candidate Walter Bubley is working with Tsang to determine the average and maximum age, growth rate and age at maturity for this species.

Bubley worked closely with New Hampshire commercial fishermen to collec
'/>"/>

Contact: Rebecca Zeiber
rebecca.zeiber@unh.edu
603-749-1565
University of New Hampshire
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UNH researchers studying spiny dogfish, Gulf of Maine's mini shark
(Date:4/17/2014)... is available in German . ... the protection money demanded of him, he can expect his ... however, as fear of the consequences is enough to make ... parasitic birds, which lay their eggs in other birds, nests. ... brood parasites take their revenge by destroying the entire nest. ...
(Date:4/17/2014)... many serious conditions such as heart disease, epilepsy and ... therapies. Unfortunately, there is still much scientists do not ... and unexpected insight into the structure of sodium channels ... - which are responsible for ,fine-tuning, the activity of ... recent edition of the Journal of Biological Chemistry ...
(Date:4/17/2014)... the process whereby the genetic information of DNA ... proteins, which have numerous different functions in living ... intermediary during gene expression, by relating the genetic ... in manufacturing proteins. , By examining the ... in an organism at a given time, researchers ...
Breaking Biology News(10 mins):Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Structure of sodium channels different than previously believed 2Rapid and accurate mRNA detection in plant tissues 2
... is crucial to the growth of healthy bones. It is especially ... months of their lives when their bones are growing rapidly. This ... babies a daily vitamin D supplement. But how much vitamin D ... Hope Weiler, from the School of Dietetics and Human Nutrition at ...
... professorsDavid Heeger, Joseph LeDoux, and Ruth Nussenzweighave been elected ... organization announced today. Heeger and LeDoux, who ... Department of Psychology, and Nussenzweig, a professor in the ... among the 84 new members and 21 foreign associates ...
... CA Bowman Design Group, an integrated marketing and communications ... is the first and only company in the United ... German exhibition and events industry association. Third party verification ... met or exceeded goals set for nine criteria including ...
Cached Biology News:The right amount of vitamin D for babies 23 NYU faculty elected to National Academy of Sciences 2Bowman Design Group is first US company awarded German FAMAB 'Sustainable Company' certification 2
(Date:1/14/2014)... Carahsoft and CDS Federal Services have ... at 2pm EST (11am PST), “Natural Language Processing: Converting ... how technology can turn raw, heterogeneous data into actionable ... The online webinar will last approximately one hour. , ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... of Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging ... to serve the wound care market. , Free report ... was restructured with a seasoned management team and Board, ...
(Date:1/14/2014)... In recent years, growing suspicion about the ... development and promotion has led to unprecedented levels of ... concerns about the insidious impact of commercialization of research, ... to the world’s biggest pharmas for illegal marketing activities, ...
(Date:1/14/2014)... 13, 2014 Bob Hainsey, a semiconductor ... 20 years in the industry, has joined SPIE, ... will serve as the society’s Science and Technology Strategist. ... SPIE as our Technology Strategist, further strengthening the technical ...
Breaking Biology Technology:Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2
... ... their management of research data. The survey,s purpose was to learn about and prove the ... labs are not run efficiently. , ... (PRWEB) -- In a survey commissioned by BioData, 94 researchers from 74 institutions worldwide ...
... Nov. 3 Fertili-Plus(TM) today introduced the ... and easy-to-follow guide, when trying to conceive ... e-book publication, the Fertili-Plus Conception Framework equips couples with ... and reproductive health, and increase their chances of conceiving. ...
... Nov. 3 Sangamo BioSciences, Inc. (Nasdaq: SGMO ) ... provide an update on the progress of Sangamo,s ZFP Therapeutic(TM) ... at 2:20 pm ET on Tuesday, November 10, 2009 at ... be held in New York City. , The presentation will ...
Cached Biology Technology:80% of Researchers Surveyed Believe Their Laboratories Are Not Run Efficiently 280% of Researchers Surveyed Believe Their Laboratories Are Not Run Efficiently 3Fertili-Plus Introduces 5-Step Conception Framework 2Sangamo BioSciences Announces Presentation at Merriman Curhan Ford's Investor Summit 2009 2
... dotLab System brings together two mature, ... immobilized capture surfaces. This combination produces ... for the detection of molecular binding ... labels. , Protein-specific capture molecules are ...
... (RNA polymers) are prepared ... of the enzyme, polynucleotide ... and the appropriate, ribonucleoside ... the exception of catalog ...
... LabWorks Software provides a comprehensive experiment based ... drop down menus yet sophisticated and powerful ... dozens of CCD cameras for easy image ... , Automated Digital Video Playback ...
...
Biology Products: