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)... , April 10, 2015 Research ... of the "Security Competitive Profiles - NEC" ... , NEC will continue to supply a ... the market, with a company focus on the development ... Winning opportunities in the Asia-Pacific ...
(Date:4/6/2015)... Apr. 6, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce ... patent 62/143028 for MINIATURE, MULTI-PURPOSE ANTENNA ... NXT-ID introduces a new revolutionary method ... surrounds the use of miniature antenna modules for ...
(Date:4/2/2015)... , April 2, 2015 According ... 2015 attributed to somewhat higher than 125 MSEK. This ... year-end report 2014 that revenues for Q1 2015 would ... company reported for Q4 2014. The operating result for ... negative. The complete interim report will as previously communicated ...
Breaking Biology News(10 mins):NEC Security Competitive Profile 2015 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4Fingerprint Cards Revises Revenues for Q1 2015 2
... In 2005, 40.3 million people in the world, including 25.8 ... of the origin of HIV-1, responsible for the AIDS pandemic, ... Some months ago, the team of Martine Peeters, director of ... research unit UMR 145 jointly involving the IRD and the ...
... among other roles. For the first time, scientists using ... of its kind in the Americas) have seen how ... the first aid/repair after DNA injuries to the region ... lie out of the visual reach of scientists. The benefits ...
... University researchers have shown that some simple biodegradable liquids ... development that could significantly impact medicine. , When the ... to open wounds, the peptides self-assemble into a nanoscale ... bleeding. Once the injury heals, the nontoxic gel is ...
Cached Biology News:Wild gorillas carriers of a SIV virus close to the AIDS virus 2Nanoscale microscope sheds first light on gene repair 2MIT material stops bleeding in seconds 2MIT material stops bleeding in seconds 3
(Date:4/20/2015)... Calif. , April 20, 2015   Meditope ... products using its proprietary technology, today announced presentation of ... for the development of antibody-drug conjugates (ADCs). The data were ... 2015, taking place April 18-22 in Philadelphia ... about these data which point to the many commercial ...
(Date:4/17/2015)... , April 17, 2015  Centrillion ... a SBIR grant from the National Human ... Institutes of Health (NIH). The grant will ... in the development of breakthrough genomic technologies, ... specially fabricated substrates. Centrillion has been developing ...
(Date:4/17/2015)... , April 17, 2015  Guggenheim Securities, the investment ... announced the hiring of William Tanner as ... Mr. Tanner will start work at Guggenheim in ... office. "Bill brings a wealth ... to our experienced and highly acclaimed healthcare team," said ...
(Date:4/17/2015)... BellBrook Labs announced today that ... the powerful Orthogonal Pooled Screening (OPS) Platform developed ... the Lankenau Institute for Medical Research (LCGC) in ... improve successful drug discovery outcomes using far more ... libraries available nowhere else, coupled to a state-of-the-art ...
Breaking Biology Technology:Meditope Biosciences Presents Data At The American Association Of Cancer Research (AACR) Annual Meeting Validating Its SnAP Technology Platform 2Guggenheim Securities Hires Biotech Analyst William Tanner in Expansion of Healthcare Coverage 2BellBrook Labs and Lankenau Institute Partner to Accelerate Drug Discovery using Orthogonal Pooled Screening 2
... 7, 2008 MaxCyte, Inc., a,clinical-stage therapeutics ... loading systems, announces that Anthony Recupero, Ph.D.,Vice ... on Tuesday,April 8, 2008, at 2:00PM at ... Dr. Recupero,s presentation will discuss the development ...
... Excellence and Patient Ease-of-Use, BROOKFIELD, Wis., April ... won the 2008 Medical Design Excellence Awards (MDEA) ... Genesis DM won in the,rehabilitation and assistive-technology products ... monitoring device is,ideal for both the patient and ...
... Boston,Scientific Corporation (NYSE: BSX ) will webcast ... ended March 31, 2008 on,Tuesday, April 22, at 8:30 ... Jim Tobin, President and Chief Executive,Officer, Paul LaViolette, Chief ... Financial Officer., The live webcast and archived replay ...
Cached Biology Technology:Honeywell HomMed Wins 2008 Medical Design Excellence Award for Genesis DM Remote Care Device 2Honeywell HomMed Wins 2008 Medical Design Excellence Award for Genesis DM Remote Care Device 3Boston Scientific to Webcast Conference Call Discussing First Quarter Financial Results 2
...
... Pierce scientists developed the Easy-Titer Human IgM ... a simple, sensitive, and easy-to-perform assay for ... an ELISA. This kit incorporates a simple ... of IgM concentration from 15-500 ng/ml in ...
... Stabilizer is an aqueous solution that contains ... stabilizing chemicals in a saline solution, pH ... of 0.02% methylisothiazolone and 0.02% bromonitrodioxane as ... a diluent and stabilizer for biologically active ...
... reagent; Ideal for clarifying many items ... nucleic acids, & proteoglycans; Contains no ... downstream processing; Utilizes a reagent that ... as a suspension in saline; Simple ...
Biology Products: