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:4/10/2015)... Research and Markets ( http://www.researchandmarkets.com/research/cjk4gb/security ... Competitive Profiles - NEC" report to their offering. ... will continue to supply a range of IT security ... company focus on the development of a Big Data ... in the Asia-Pacific region is ...
(Date:4/2/2015)... Md. , April 2, 2015 At ... Salt Lake City , the American College ... of five new directors to its Board.  Members of ... the ACMG and for forming and advancing its policies ... medical genetics profession. "It,s an eventful time ...
(Date:3/31/2015)...  Elephant Talk Communications Corp. (NYSE MKT: ETAK) ("Elephant ... Defined Network Architecture (ET Software DNA® 2.0) platforms and ... $20.4 million for the year ended December 31, 2014 ... year ended December 31, 2013. At ... its multi-year transition away from its legacy landline business ...
Breaking Biology News(10 mins):NEC Security Competitive Profile 2015 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 3American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 5American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 6American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 7American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 8Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6
... manage to efficiently collect a lot of nectar with limited ... queen bee is too busy laying eggs to oversee something ... on any given morning. According to new research from the ... organized bees can also be used to improve the efficiency ...
... developing world, has announced the winners of the TWAS Prizes ... be invited to lecture about his or her research at ... in Mexico City from 10 to 13 November 2008. ... Sciences, University of Agriculture, Faisalabad, Pakistan, has won the 2007 ...
... habitat changes, animals migrate. But how do immobile organisms ... environment? This is an increasingly important question in light ... change. A University of Virginia study, published in ... that plants grown in the same setting as their ...
Cached Biology News:Bee strategy helps servers run more sweetly 2Bee strategy helps servers run more sweetly 3TWAS announces 2007 prize winners 2TWAS announces 2007 prize winners 3TWAS announces 2007 prize winners 4Evolutionary biology research on plant shows significance of maternal effects 2
(Date:5/4/2015)... , May 4, 2015  RegeneRx Biopharmaceuticals, ... announced that an independent team of researchers from ... that Thymosin B4 (TB4) plays an important role ... wounds, induced in an experimental mouse model, by ... remodeling of damaged dermal tissue.  The research found ...
(Date:5/4/2015)... - New Massive Open Online ... for the United States Medical Licensing Examination ... and medical information products and services, announced today that ... Course) designed to help medical students prepare for the ... first and most daunting of the three exams medical ...
(Date:5/1/2015)...  Northwest Biotherapeutics (NASDAQ: NWBO ) ("NW Bio"), ... for solid tumor cancers, announced today that the Company ... a $40 million investment from Woodford investment funds in ... million in NW Bio on November 19, 2014.  On ... the Company for a further $40 million investment in ...
(Date:5/1/2015)... -- A new report by  visiongain  forecasts ... $22.4bn in 2019. That revenue forecast and others appear ... 2015-2025 ,  published in March 2015. ... forecasts and qualitative analyses of the antithrombotic drugs market. ... London, UK . It produces analyses ...
Breaking Biology Technology:Researchers Report that Thymosin B4 has a Major Role in Dermal Burn Wound Healing 2Researchers Report that Thymosin B4 has a Major Role in Dermal Burn Wound Healing 3Elsevier's Free MOOC Prepares Med Students for Licensing Exam 2Elsevier's Free MOOC Prepares Med Students for Licensing Exam 3NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 3Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 2Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 3Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 4Antithrombotic Drugs: World Industry and Market Prospects 2015-2025 5
... R.I. [Brown University] Creating catalysts that can operate efficiently ... taking fuel-cell technology from the lab bench to the assembly ... many researchers, but platinum has two major downsides: It is ... In a new study, chemists at Brown University report ...
... New ... ... sustainable farming methods to meet a growing global food demand, and a new online resource from ... they do it. , , ,The new website, which can be found here , will ...
... May 24 /PRNewswire-Asia-FirstCall/ -- Dehaier Medical Systems Ltd.,(Nasdaq: DHRM ), ... in China , announced today an exclusive distributor,agreement for HEYER Medical,s ... models of this product. , , ... HEYER Cumulus is suitable for the treatment of ...
Cached Biology Technology:Brown chemists report promising advance in fuel-cell technology 2Farmers Use Sustainable Farming Methods to Meet Global Food Demand 2Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 2Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 3Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 4
...
...
... and supplies, for 10 chips, provides ... perform high-sensitivity RNA analysis (picogram levels) ... automated electrophoresis system. Supplied are 1,250 ... HighSens stain, 20 microliters RNA ladder, ...
Anti-NCAPD3 Monoclonal AntibodyOther Sub-Family: not assigned-Other Applications: Immunoprecipitation, Western Blot...
Biology Products: