Navigation Links
Study of bigeye tuna in Northwest Atlantic uses new tracking methods
Date:7/31/2014

eps towards determining whether or not a more complex management approach may be warranted.

Working with pelagic longline vessel captains Scott Drabinowicz and John Caldwell of the FV Eagle Eye II out of Fairhaven, Mass., Lutcavage, with LPRC colleagues Tim Lam and doctoral candidate Ben Galuardi, deployed 21 pop-up satellite archival tags (PSAT) on adult bigeye tuna between 2008 and 2010 in the northwest Atlantic. The sea captains fit tags on fish in good condition and return them to the sea. The PSATs were programmed to record relative light level, temperature and pressure (depth) every two minutes for eight or 12 months.

Lutcavage, Lam and Galuardi were able to collect full-resolution time series data from a total of nine tags, providing data ranging from one to 292 days. The team also downloaded remote sensing and climatological information from the NOAA to characterize possible associations between bigeye tuna movement and behavior and environmental factors.

Among variables they analyzed were the bigeyes' use of the deep scattering layer for foraging. That is an ocean layer of marine life that rises and falls in relation to diurnal vertical migration. The researchers also looked at lunar influences on swimming depth, horizontal movements, plus vertical activity and factors influencing it such as temperature.

Lam explains, "Bigeye tuna dive deeply, like clockwork, at dusk and dawn, making it hard to use light-based geolocation methods to estimate their daily locations. Here, we showcase a new positioning technique to get around the problem of low light levels at depth by using temperature and the bigeyes' spatial ecology and movements in the western Atlantic. But there's much more to learn."

The authors hope their results will inform the International Commission for the Conservation of Atlantic Tuna's upcoming tagging effort and assist ICCAT scientists as they plan new research to better understand the population
'/>"/>

Contact: Janet Lathrop
jlathrop@admin.umass.edu
413-545-0444
University of Massachusetts at Amherst
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. UF study advances DNA revolution, tells butterflies evolutionary history
2. Study of twins discovers gene mutation linked to short sleep duration
3. Study finds benefits to burning Flint Hills prairie in fall and winter
4. UT Dallas study reveals effect of loud noises on brain
5. New international tree nut council study looks at nuts, diabetes and metabolic syndrome
6. Study: Marine pest provides advances in maritime anti-fouling and biomedicine
7. Healthy lifestyle may buffer against stress-related cell aging, study says
8. Study suggests disruptive effects of anesthesia on brain cell connections are temporary
9. Study finds Europes habitat and wildlife is vulnerable to climate change
10. Dinosaurs fell victim to perfect storm of events, study shows
11. Study: Climate change and air pollution will combine to curb food supplies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study of bigeye tuna in Northwest Atlantic uses new tracking methods
(Date:8/12/2015)... August 12, 2015 As the ... payment innovation and advanced biometrics technology is accelerating beyond ... consumers rely on using their credit cards, the digital ... future for payment services led by companies in the ... :  Google, Inc. (NASDAQ: GOOG ), Apple Inc. ...
(Date:8/10/2015)... Germany , August 10, 2015 /PRNewswire/ ... world leader in Eye Tracking Technology for more than ... Eye Tracking Platform for integration into all consumer display ... designs for seamless integration of eye tracking into consumer ... and augmented reality smart glasses. Omnivision,s leading sensor technology ...
(Date:8/6/2015)... SAN JOSE, Calif. , Aug. 6, 2015 ... the leading developer of human interface solutions, today ... and TouchPad technologies on Windows 10. Microsoft leveraged ... fundamental to the operating system. ... and drivers are fully certified with Microsoft,s Precision ...
Breaking Biology News(10 mins):Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3Synaptics Chosen for Human Interface Co-Development on Windows 10 2
... Center faculty have been elected to the Institute of Medicine ... Election to the Institute of Medicine (IOM) is one of ... and Columbia now has 49 members in this esteemed organization. ... Carolyn Westhoff were among the 65 new IOM members ...
... of the three most frequent malignancies in Western ... patients with early stage and local CRC approaches ... recurrence and the development of distant metastases that ... cause of CRC-related mortality. Although IL-8 ...
... publishers, has entered a publishing partnership with the Estuarine ... Appearing six times a year, the journal plays ... of estuarine and coastal ecosystems. The first issue ... partnership will be officially announced at the ERF 2007 ...
Cached Biology News:3 Columbia University Medical Center faculty elected to Institute of Medicine 2Interleukin-8, key marker for colorectal cancer treatment 2Estuarine Research Federation chooses Springer as publishing partner 2
(Date:9/2/2015)... , ... September 02, 2015 ... ... of regulatory compliance, quality systems, analytical testing, education and consulting services for ... expertise in medical device products/processes development, design control, validation, quality assurance and ...
(Date:9/2/2015)... 02, 2015 Research ... addition of Jain PharmaBiotech,s new report "Biomarkers ... offering. This report follows the broad ... can be objectively measured and evaluated as an ... well as pharmacological responses to a therapeutic intervention. ...
(Date:9/2/2015)... ... September 02, 2015 , ... Drug companies ... compounds. BCC Research reveals in its new report that the U.S. will ... the category and generates the most market demand. , BCC Research examines ...
(Date:9/2/2015)... 2015 Veracyte, Inc. (NASDAQ: VCYT ) ... and chief executive officer, will present at the Morgan ... at 10:30 a.m. ET in New York, ... webcast and subsequent replay may be accessed by visiting Veracyte,s website ... shortly after conclusion of the presentation and archived on ...
Breaking Biology Technology:NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 2NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 4NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 5NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 6NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 7Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 2Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 3Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 3Veracyte to Present at Morgan Stanley Global Healthcare Conference 2
... Aug. 28 /PRNewswire/ - Enerkem Inc., a ... the appointment of,two new Vice-Presidents to its ... Implementation and Mrs. Marie-Helene Labrie,Vice-President, Government Affairs ... add these seasoned executives to our management,team," ...
... ThromboGenics NV,(Euronext Brussels: THR), a biotechnology company ... and cancer, is today issuing a,business update and ... ending,June 30, 2008., During the first half ... milestones which have positioned the Company to successfully ...
... deCODE genetics,(Nasdaq: DCGN ) today announced that it ... presentation at Thomas Weisel Partners Healthcare,Conference 2008., The ... 5:30 PM GMT / 6:30,PM British Summer Time on ... The webcast can be accessed through the Investors page ...
Cached Biology Technology:Enerkem Expands Executive Management Team 2ThromboGenics Announces Half Year Results 2008 2ThromboGenics Announces Half Year Results 2008 3ThromboGenics Announces Half Year Results 2008 4ThromboGenics Announces Half Year Results 2008 5deCODE genetics to Webcast Presentation at Thomas Weisel Partners Healthcare Conference 2008 2