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:10/15/2014)... a non-traditional biophysics textbook and it describes how life ... of discovery into biological systems and provides an understanding ... is about how our genes make proteins that control ... cells in an organism. It quantifies the principles of ... be found on both large and small scales. The ...
(Date:10/15/2014)... to an unexpected extent. The outbreak does not follow ... shows a new disease dynamic in regions, where it ... German National Academy of Sciences Leopoldina, acatech – the ... of the German Academies of Sciences and Humanities have ... In the statement the academies call for the following ...
(Date:10/15/2014)... Oct. 15, 2014 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market releases photos and video ... Square on Monday October 13 th . ... Tunnel and angel investor Mr. Chad A. Verdi ... of NXT-ID thanked his investors and employees "for their work and ...
Breaking Biology News(10 mins):New book about life as seen from physics 2Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3
... release is available in Spanish . , ... vectors of equine piroplasmosis in horses in a 2009 Texas ... The United States has been considered free from the disease ... In October 2009, in Kleberg County, Texas, a mare was ...
... use hot enough water to eliminate dangerous bacteria like ... from hospital uniforms, according to a study published in ... Epidemiology , the journal of the Society for Healthcare ... researchers from University College in London, was prompted by ...
... More than three-quarters of cancer patients have insufficient levels of ... with more advanced cancer, according to a study presented on ... American Society for Radiation Oncology (ASTRO). , "Until recently, ... on the prognosis or course of cancer. Researchers are just ...
Cached Biology News:Tick responsible for equine piroplasmosis outbreak identified 2Study: Residential washers may not kill hospital-acquired bacteria 2Vitamin D deficiency common in cancer patients 2
(Date:10/20/2014)... , Oct. 20, 2014 Asterias ... the Company has signed a Notice of Grant ... Medicine (CIRM), effective October 1, 2014.  The NGA ... payments and the release of additional grant funds ... grant award for clinical development of Asterias, product, ...
(Date:10/20/2014)...  GenVec, Inc. (NASDAQ: GNVC ) today announced ... its board of directors effective on October 24, 2014.   Dr. ... as its chairman from June 2006 to November 2013.  During ... Governance and Audit Committees of the board.  ... dedicated service to GenVec, and its stockholders," said Wayne ...
(Date:10/20/2014)... Rochelle, Virginia (PRWEB) October 20, 2014 ... of NDA Partners LLC, announced today that Ellen ... and legal support for the pharmaceutical industry, has ... and manager of its legal services practice. ... reports and expert witness and testimony, to top ...
(Date:10/19/2014)... OCTOBER 20-22, 2014: The 9th Annual ... take place at the Congress Center Basel, ... now available at http://www.abim.ch . ... from all over the globe will exchange ... products and developments on the world market. ...
Breaking Biology Technology:Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4Zola P. Horovitz To Retire From GenVec Board 2NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2
... From the structure of DNA to nautical rope ... as they are useful in nature and manufacturing alike. ... Sciences (SEAS) have discovered a way to synthesize and ... into helical clusters and have further demonstrated the fabrication ...
... Jan. 8 InteKrin Therapeutics, Inc.,will present at the ... Pacific Time on Tuesday, January 13, 2009, to be ... InteKrin Therapeutics, President and,CEO Denny Lanfear will present at ... ( http://www.InteKrin.com ): , InteKrin ...
... Public Health Physician Spent Last 10 Years Helping Implement ... Abt Associates announced that Dr. John Osika has ... and Infectious Disease Advisor. Dr. Osika, a board ... is a recognized public health expert with extensive experience ...
Cached Biology Technology:Researchers control the assembly of nanobristles into helical clusters 2InteKrin Therapeutics to Present at the 27th Annual JP Morgan Healthcare Conference on Tuesday, January 13 2Dr. John Stephen Osika, HIV/AIDS and Infectious Disease Expert, Joins Abt Associates 2
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: barcoded, ...
... mat made from an inert polymer with a ... 384 split septum caps for use with ... for PCR when used in conjunction with screw ... with standard pipetting equipment 384 septum caps ...
Packaging: package with 500 l Patent/trademark/license (electronic): (r) Registered trademark of Molecular Probes...
... unique alternative to traditional TBE (TRIS ... buffers. Bionic Buffer allows for higher ... and high-resolution band separation. -Application: Ready ... dilution to working 1x concentrations. ...
Biology Products: