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:9/19/2014)... a species which over thousands of years has adapted to ... substance that makes the cold dangerous for you. , This ... , and the cold provoking substance, called nonylphenol, comes from ... is suspected of being a endocrine disruptor, but when entering ... worm,s ability to protect the cells in its body from ...
(Date:9/19/2014)... legume plants regulate their symbiotic relationship with soil ... through the plant structure from leaves into the ... in the roots. This collaborative study was conducted ... Biology, the Graduate University for Advanced Studies (SOKENDAI), ... in Japan. , Legumes, an important plant ...
(Date:9/18/2014)... Bulletin study uses tree rings to document arroyo ... in northern New Mexico, USA. By determining burial dates ... were able to precisely date arroyo sedimentary beds 30 ... with aerial imagery, LiDAR, longitudinal profiles, and repeat surveys ... are deep, oversized channels that have vertical or steeply ...
Breaking Biology News(10 mins):Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3For legume plants, a new route from shoot to root 2Tree rings and arroyos 2Tree rings and arroyos 3Tree rings and arroyos 4Tree rings and arroyos 5Tree rings and arroyos 6Tree rings and arroyos 7
... and Duke University have developed nanoscale "patches" that can ... more responsive to signals that control cell activity. The ... engineering research. The research takes advantage of the ... via physical contact. Specifically, when targeted receptors on the ...
... mainland - are taking the lead in making plans to ... Diana Reckien, of Columbia University in the US, in a ... analysed the relevant strategic policies and planning documents of 200 ... in every three European cities has no plans on the ...
... "smart": too elementary to be able to reproduce by themselves, ... of their own DNA so that it is transcribed by ... inject their own genetic material into the cells they infect. ... (the International School for Advanced Studies in Trieste), has studied ...
Cached Biology News:Researchers use nanoscale 'patches' to sensitize targeted cell receptors 2The reality behind Europe's response to climate change 2Tidy knots are faster 2
(Date:9/18/2014)... Station, Texas (PRWEB) September 18, 2014 ... System Chancellor John Sharp, Texas A&M Health Science ... the U.S. Department of Health and Human Services ... today dedicated a national pandemic influenza vaccine manufacturing ... serve as an anchor for the Texas A&M ...
(Date:9/18/2014)... , Sept. 18, 2014 Research and ... "Global and Chinese Stem Cell Industry Report, 2014-2017" ... are undifferentiated biological cells that can differentiate into specialized ... stem cells. Stem cell therapy can be applied to ... system disease), nervous system diseases, damage or lesion of ...
(Date:9/18/2014)... 2014 Research and Markets has ... Industry Report 2014" report to their offering. ... is a professional and in-depth study on the current ... The report provides a basic overview of the industry ... human albumin market analysis is provided for the international ...
(Date:9/18/2014)... Leatherwood Plastics has selected Vycom’s Flametec ... competitive in the semiconductor, clean room and medical ... product quality and productivity, according to Dwight Leatherwood, ... 1980 in Lewisville, TX, Leatherwood Plastics ... the business. Much of Leatherwood’s equipment building relies ...
Breaking Biology Technology:Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Leatherwood Plastics Selects Vycom’s Flametec PVC-C Material to Stay Competitive in Semiconductor and Lab Equipment Industries 2
... pirfenidone role in treatment of patients with IPF -- Ground-breaking ... Strong data from 14-day triple combination study of ITMN-191 in ... (Nasdaq: ITMN ) today announced results from operations ... InterMune reported a net loss for the first quarter ...
... ERES ), a leading provider of centralized ECG, ... device, and related industries, announced today results for the first ... refer to changes from the same period a year ago.Highlights ... , Quarterly ...
... 30 Resonant Medical, an innovator in 3D ... appointment of Stephen Whisenhunt to the position of ... will lead the Company,s growing global sales team ... than 18 years of radiation oncology industry experience ...
Cached Biology Technology:InterMune Reports First Quarter 2009 Financial Results and Business Highlights 2InterMune Reports First Quarter 2009 Financial Results and Business Highlights 3InterMune Reports First Quarter 2009 Financial Results and Business Highlights 4InterMune Reports First Quarter 2009 Financial Results and Business Highlights 5InterMune Reports First Quarter 2009 Financial Results and Business Highlights 6InterMune Reports First Quarter 2009 Financial Results and Business Highlights 7InterMune Reports First Quarter 2009 Financial Results and Business Highlights 8InterMune Reports First Quarter 2009 Financial Results and Business Highlights 9InterMune Reports First Quarter 2009 Financial Results and Business Highlights 10InterMune Reports First Quarter 2009 Financial Results and Business Highlights 11InterMune Reports First Quarter 2009 Financial Results and Business Highlights 12InterMune Reports First Quarter 2009 Financial Results and Business Highlights 13ERT Reports First Quarter 2009 Results 2ERT Reports First Quarter 2009 Results 3ERT Reports First Quarter 2009 Results 4ERT Reports First Quarter 2009 Results 5ERT Reports First Quarter 2009 Results 6ERT Reports First Quarter 2009 Results 7ERT Reports First Quarter 2009 Results 8ERT Reports First Quarter 2009 Results 9Resonant Medical Expands Sales Organization with Appointment of Vice President of Global Sales and Marketing 2