Navigation Links
New study reveals vulnerability of sharks as collateral damage in commercial fishing
Date:7/22/2014

MIAMI A new study that examined the survival rates of 12 different shark species when captured as unintentional bycatch in commercial longline fishing operations found large differences in survival rates across the 12 species, with bigeye thresher, dusky, and scalloped hammerhead being the most vulnerable. The study, led by researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and UM Abess Center for Ecosystem Science and Policy, provides new information to consider for future conservation measures for sharks in the Northwest Atlantic.

The unintentional capture of a fish species when targeting another species, known as bycatch, is one of the largest threats facing many marine fish populations.

Researchers from UM and the National Marine Fisheries Service analyzed over 10 years of shark bycatch data from the western Atlantic Ocean and Gulf of Mexico tuna and swordfish longline fisheries to examine how survival rates of sharks were affected by fishing duration, hook depth, sea temperature, animal size and the target fish. Some species, such as the tiger shark, exhibited over 95% survival, whereas other species survival was significantly lower, in the 20-40% range, such as night shark and scalloped hammerheads.

"Our study found that the differences in how longline fishing is actually conducted, such as the depth, duration, and time-of-day that the longlines are fished can be a major driver of shark survival, depending on the species," said UM Rosenstiel School Ph.D student and lead author Austin Gallagher. "At-vessel mortality is a crucial piece of the puzzle in terms of assessing the vulnerability of these open-ocean populations, some of which are highly threatened."

The researchers also generated overall vulnerability rankings of species taking into account not only their survival, but also reproductive potential. They found that species most at risk were those wi
'/>"/>

Contact: Diana Udel
dudel@rsmas.miami.edu
305-421-4704
University of Miami Rosenstiel School of Marine & Atmospheric Science
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Law that regulates shark fishery is too liberal: UBC study
3. New study will help protect vulnerable birds from impacts of climate change
4. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
5. BYU study: Using a gun in bear encounters doesnt make you safer
6. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
7. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
8. Crystal structure of archael chromatin clarified in new study
9. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
10. University of Houston study shows BP oil spill hurt marshes, but recovery possible
11. Study demonstrates cells can acquire new functions through transcriptional regulatory network
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study reveals vulnerability of sharks as collateral damage in commercial fishing
(Date:6/30/2015)... HATFIELD, Pa. , June 30, 2015 ... joined the company as CEO to help further develop ... a wealth of partnering experience, having spent much of ... companies including Therakine, Amgen, Baxter Bioscience, and Johnson & ... a focus on Technology and Biotech Corporate Finance. He ...
(Date:6/26/2015)... 2015 ATL Technology, LLC, a top provider of ... single use solutions, headquartered in Springville, Utah ... California corporation with locations in ... Costa Rica ). This acquisition will incorporate ... with ATL Technology,s existing facility in Costa Rica ...
(Date:6/25/2015)... , June 25, 2015  Imagine a tool specifically ... a healthier, happier life. That,s exactly what USANA,s ... do. The cutting-edge, portable health program provides a personalized ... to help improve your lifestyle and nutrition. ... and gala Wednesday night, USANA,s THA was honored with ...
Breaking Biology News(10 mins):Genisphere Appoints New CEO, Thomas Bliss 2Genisphere Appoints New CEO, Thomas Bliss 3ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2@USANAinc's Personalized Nutrition Program Wins Industry Innovation Award 2
... bad news, then good news from University of Illinois ... learned that frozen broccoli lacks the ability to form ... second study demonstrated how the food industry can act ... discovered a technique that companies can use to make ...
... Academy of Science of South Africa are set to collaborate ... signed in Pretoria by Leopoldina President Professor Jrg Hacker and ... Daya Reddy. The Leopoldina has had a good ... for many years, and the 2012/2013 German-South African Year of ...
... mothers who are more extroverted and less anxious are more ... who are introverted or anxious. Published early online in the ... new mothers with certain personalities may need additional support and ... about breastfeeding. Breastfeeding is important for the health ...
Cached Biology News:Illinois scientists put cancer-fighting power back into frozen broccoli 2Leopoldina signs cooperation agreement with the Academy of Science of South Africa 2Personality may affect a new mother's decision to breastfeed 2
(Date:7/30/2015)... Dallas, TX, USA (PRWEB) , ... July 30, ... ... nano and microsystems, has appointed Francois Vieillard as Sales & Marketing Director. ... executive positions, Francois Vieillard will be responsible for reinforcing Tronics’ business development activities ...
(Date:7/30/2015)... -- According to a new market research ... PKPD, Trial Design, Toxicity Prediction, In-house, Contract Service), by ... End Users - Global Forecast to 2020", published by ... 2,107.99 million by 2020 from USD 1,034.93 million in ... Browse more than 75 market ...
(Date:7/30/2015)... CITY, Kan. , July 30, 2015 /PRNewswire/ ... ), a pet therapeutics company focused on the ... for companion animals, today announced that its strategic ... from a dose confirmation study of AT-016, an ... Aratana for the treatment of osteoarthritis pain in ...
(Date:7/30/2015)... globe, ISN improves the efficiency and effectiveness of contractor management systems. ISN,s online contractor ... in over 80 countries. ... ... Over 60,000 Worldwide Customers In More Than 80 Countries ... Dallas, TX , ISN has additional offices in Calgary , ...
Breaking Biology Technology:Tronics appoints Francois Vieillard as Sales and Marketing Director 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3
... Joseph F. Finn, Jr.,C.P.A. ("Finn"), Assignee ... for,the benefit of creditors, announced today that ... sold at a sealed bid auction on ... hydrophobic thermoplastic,polymers, Spheromers(TM), have superior conventional hydrophilic,bioadhesive ...
... InNexus,Biotechnology Inc., (TSX: IXS.V, OTC Bulletin Board: IXSBF, ... next,generation of monoclonal antibodies based on its Dynamic ... Board of Directors., Mr. Warden was a ... his 23 years of practice, he has represented ...
... Calif., Sept. 9 Energy crop company,Ceres, Inc. ... and high-biomass sorghum hybrids with Range Fuels, Inc. ... the site of Range Fuels,commercial-scale cellulosic ethanol plant, ... southeast of Atlanta., While wood residues will ...
Cached Biology Technology:Spherics, Inc. Announces Sale of Novel Proprietary Bioadhesive Polymers and Oral Drug Delivery System 2InNexus Biotechnology Strengthens Patent Team With New Leadership 2Ceres Trials Energy Crops at Georgia Biofuel Facility 2Ceres Trials Energy Crops at Georgia Biofuel Facility 3
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: filling ...
... Linkage: This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
... were cultured in DMEM and harvested at the ... keep the antigens in their native forms, cells ... arrayed on a 12-well (5 mm) adhesive coated ... enhance cellular attachment and to minimize background staining. ...
... (PI) is a fluorescent nucleic acid dye ... As a nuclear counterstain, propidium iodide ... in color. The fluorescent red color ... fluorochromes such as FITC, Cy2 or AMCA. ...
Biology Products: