Navigation Links
The secret life of Ireland's smooth-hound sharks
Date:10/3/2010

They grow to over a meter in length, can weigh up to twelve kilos and each summer they swarm into the shallow waters of the Irish east coast. Despite this, the starry smooth-hound has remained Ireland's least well known shark species. However, thanks to researchers at University College Dublin, whose work is now published in the Journal of Fish Biology, this may be about to change.

Dr. Edward Farrell, who recently graduated from UCD School of Biology & Environmental Science, spent the last four years studying these unusual sharks. Under the supervision of Dr. Stefano Mariani of the SBES and Dr. Maurice Clarke of the Marine Institute, the PhD project successfully investigated the age, growth, reproduction and identification of the species in the Northeast Atlantic.

"It's amazing how little was known about this species considering their size and abundance on the east coast," said Farrell. "Until recently we weren't even sure what species we were dealing with but we developed a genetic method which allowed us to confirm that it is the starry smooth-hound which occurs in Irish waters and not the related common smooth-hound. Once this was established we were able to investigate their life-history."

Starry smooth-hounds were previously considered to be a fast growing and early maturing species, meaning they were not a conservation concern. However the results of the four year project have revealed that starry smooth-hounds in Irish waters actually grow twice as slowly as previously estimated and only reproduce every two years rather than annually as is the case in the Mediterranean.

"Some of the findings are quite worrying for the species as males don't mature until they are 4-5 years old and females until they are 6 years old, said Farrell. "Females also appear to take two years to complete the reproductive cycle. The pups develop inside the female for approximately 12 months before being born after which the female has a
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Looking for secrets to drug addiction in our blood
2. Neutrons helping ORNL researchers unlock secrets to cheaper ethanol
3. Ancient brew masters tapped antibiotic secrets
4. Secrets of the gecko foot help robot climb
5. Frozen flies may yield secrets for human organ transplants
6. Unlocking the secrets of RNA biology with WIREs
7. The secret of life may be as simple as what happens between the sheets -- mica sheets
8. Scientists unlock secret of rabies transmission in bats
9. Behind the secrets of silk lie high-tech opportunities
10. Ear bones reveal spawning secrets of Lake Erie walleye
11. What secrets are stored in the roots of corn plants?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The secret life of Ireland's smooth-hound sharks
(Date:8/20/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market and creator of the Wocket® ... Alliance and the EMV Migration Forum.  ... Alliance Latin America (SCALA) Chapter provides NXT-ID, Inc. direct ... promoting adoption of smart card technology. To ...
(Date:8/18/2015)... , Aug. 18, 2015  Navitas today ... contributor to the Submission Content Management webinar ... a non-profit forum. Dedicated to the Implementation of ... neutral platform for industry, vendors, health authorities, ... and work towards a standard method of ...
(Date:8/17/2015)... , Aug. 17, 2015  NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market and ... sales campaign for Q4 2015. The new marketing campaign ... consisting of Amplitude Marketing Group ( http://amplitudemarketing.com/ ) and ... is a leader in retail driven marketing and brand ...
Breaking Biology News(10 mins):NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3
... Shocking new research shows size isn,t always an ... that bigger is better. Michael Kasumovic, a ... Redback male spiders to determine whether the larger ones ... offspring. Surprisingly, Kasumovic found the large spiders didn,t ...
... decades, the number of adults consuming sugar-sweetened beverages ... has increased dramatically, according to a study led ... of Public Health. Researchers examined changes over the ... on nationally representative survey data, and found that ...
... --The U.S. Environmental Protection Agency and U.S. Department of ... (NCII) to learn more about the effectiveness of actions ... basin and into the northern Gulf of Mexico, says ... The report also advises how to move forward on ...
Cached Biology News:Sweetened beverage consumption increases in the US 2EPA and USDA should create new initiative to better monitor nutrients 2EPA and USDA should create new initiative to better monitor nutrients 3EPA and USDA should create new initiative to better monitor nutrients 4
(Date:8/27/2015)... GUELPH, ON , Aug. 27, 2015 /PRNewswire/ - BIOREM Inc. ... the three and six-month periods ended June 30, 2015. Biorem,s complete ... ( www.sedar.com ). FINANCIAL HIGHLIGHTS: in ,000,s except earnings per ... , 2014 , 2015 , ... 9,398 , 4,433 Gross profit , 1,656 ...
(Date:8/27/2015)... ... 27, 2015 , ... METTLER TOLEDO's web-based EasyFinder™ ... choices to a manageable shortlist of bench and floor scales and terminals. Specifying ... best with the customer’s industry and application. , Side-by-side product comparisons and ...
(Date:8/26/2015)... /PRNewswire/ - iCo Therapeutics ("iCo" or "the Company") (TSX-V: ... the quarter ended June 30, 2015. Amounts, unless ... presented under International Financial Reporting Standards ("IFRS"). ... our Oral Amp B program, rapidly advancing towards ... Andrew Rae , President & CEO of iCo ...
(Date:8/26/2015)... FRANCISCO , Aug. 26, 2015  Platform ... that it has received a $1.5M Phase II ... (NIH) to further develop its therapeutic agent to ... clinical need in end stage renal disease (ESRD) ... the National Institute of Diabetes and Digestive and ...
Breaking Biology Technology:BIOREM Reports $718,000 Net Earnings for the Second Quarter 2BIOREM Reports $718,000 Net Earnings for the Second Quarter 3METTLER TOLEDO Updates Online Scale Selection Tool 2iCo Therapeutics Announces Second Quarter 2015 Financial Results 2iCo Therapeutics Announces Second Quarter 2015 Financial Results 3Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 3
... Michael Leist Varian , ... Introduction , ... greatly between the various chemical species in which an element occurs, ... one such example where the various species differ; the inorganic trivalent ...
... Tran T. Nham Varian Australia Pty Ltd Mulgrave, Victoria, Australia , ... Because of the low detection limit capability of ... widely used to determine trace and ultratrace levels in water samples 1 ... the ultrasonic nebulizer to handle samples with significant amounts of dissolved solids, ...
... Pond, Jason S. Wood, and August Specht Varian, Inc. , ... Alprazolam (Xanax) and Temazepam (Restoril) were ... after protein precipitation using Liquid Chromatography Electrospray Ionization Mass Spectrometry (LC/ESI/MS/MS). ... and accurately quantitate these drugs in the BSA matrix is investigated ...
Cached Biology Technology:Speciation of Arsenic by LC-ICP-MS 2Speciation of Arsenic by LC-ICP-MS 3Speciation of Arsenic by LC-ICP-MS 4Speciation of Arsenic by LC-ICP-MS 5Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 2Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 3Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 4Detection of Alprazolam and Temazepam in a Bovine Plasma Matrix Using the Varian 500-MS Ion Trap Mass Spectrometer 2Detection of Alprazolam and Temazepam in a Bovine Plasma Matrix Using the Varian 500-MS Ion Trap Mass Spectrometer 3
6-keto Prostaglandin F1α EIA Antiserum 6-keto-PGF1alpha EIAs prostaglandins antisera enzyme immunoassays reagents 6-keto-PGF1.alpha....
... reagent has been developed for use ... reduction of nonspecific background staining due ... describe blocking peroxidase with hydrogen peroxide. ... in combination with additional novel components ...
Phospho-Btk (Tyr223) Antibody...
Rad51B...
Biology Products: