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)... biology professor will study multifunctional and specialized spinal ... a National Science Foundation grant in the amount ... Berkowitz, professor in the Department of Biology, OU ... the differences between the multifunctional and specialized spinal ... use and what connections they make. Berkowitz ...
(Date:9/19/2014)... are a species which over thousands of years has adapted ... a substance that makes the cold dangerous for you. , ... albidus , and the cold provoking substance, called nonylphenol, comes ... Nonylphenol is suspected of being a endocrine disruptor, but when ... the worm,s ability to protect the cells in its body ...
(Date:9/19/2014)... regulate their symbiotic relationship with soil bacteria by ... plant structure from leaves into the roots to ... roots. This collaborative study was conducted by researchers ... Graduate University for Advanced Studies (SOKENDAI), and the ... , Legumes, an important plant family which ...
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 2
... are known for their almost uncanny ability to detect ... have traced the origin of those electrosensory powers to ... to many head and facial features in humans. , ... the current edition of Evolution & Development, identifies neural ...
... men having a heart attack drove themselves to hospital and only ... the latest Journal of Advanced Nursing. , The study, ... teaching hospitals in Dublin, Southern Ireland, also found that it took ... departments after their symptoms first started. But only one per cent ...
... the University of New Hampshire campus, David Berlinsky, assistant professor ... black sea bass circle slowly in the dim light. The ... College of Life Sciences and Agriculture, and home to Berlinsky's ... menus, but wild populations of the fish are in decline ...
Cached Biology News:UF scientists trace origin of shark's electric sense 2UF scientists trace origin of shark's electric sense 3One in 14 men having a heart attack drive themselves to hospital 2One in 14 men having a heart attack drive themselves to hospital 3Uncovering sex-change secrets of black sea bass 2
(Date:9/18/2014)... Research and Markets has ... Industry Report 2014" report to their offering. ... 2014 is a professional and in-depth study on ... The report provides a basic overview ... industry chain structure. The N-acetylcysteine market analysis is ...
(Date:9/18/2014)... 2014 Research and Markets has ... (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends ... The global companion diagnostics market is ... 2014 to 2019. Factors such as rising need for ... diagnostics by the pharmaceutical industry, support from regulatory authorities, ...
(Date:9/18/2014)... ST. LOUIS , Sept. 18, 2014  U.S. ... portfolio by signing an exclusive license for technology developed ... to control gene expression in plants, including for applications ... species. The technology was developed under ... science officer at Kultevat and former president of the ...
(Date:9/18/2014)... 2014  Neogen Corporation (Nasdaq: NEOG ) ... agreement with Merck Animal Health to market Neogen,s Igenity ... Igenity Dairy Heifer Program consists of genomic tests that ... potential of replacement dairy heifers. The genomic tests can ... is an excellent tool in the decision-making process for ...
Breaking Biology Technology:Global N-acetylcysteine Industry Report 2014 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3Kultevat obtains license of gene switch technology 2Merck Animal Health to market Neogen's dairy genomic program 2
... woundcare division of,Insense Ltd., today announced it has received ... Oxyzyme product in the treatment of,difficult and chronic wounds. ... one of the world,s leading wound care specialists, in ... The announcement was made at,the 3rd Congress of the ...
... June 6 Inverness Medical,Innovations, Inc. (Amex: IMA ... for the consumer and professional markets, today,announced that it ... & Medical Technology Conference being held June 11-12, 2008,at ... Jon Russell, Vice President,Finance, will present on Thursday, June ...
... June 6 DURECT Corporation,(Nasdaq: DRRX ) announced today that ... New York, NY., -- Needham & Company,s ... June 12th at 11:30 a.m. EDT. -- Leerink Swann,s Pain ... 12:45 p.m. EDT. -- Jefferies, 2nd Annual Healthcare Conference on ...
Cached Biology Technology:Revolutionary Healing Technology for Treating Difficult and Chronic Wounds Approved by Health Canada 2
HP 1 alpha Immunogen: Synthetic peptide between amino acids 1-100 of the human HP 1 alpha protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
... subcloning of gene in baculoviral expression ... and plaque purification of ten clones, ... for one clone, protein expression and ... culture. Expected yield and timeline: 1-4 ...
... Custom Synthesis Service provides you ... to knockdown any gene. We ... base pairs with terminal dT ... other lengths of your choice. ...
EDG-1 Western blot control Source: Cell Lysate Application: Western Blotting Control...
Biology Products: