A Deep Water Dispersion Experiment in the Gulf of Mexico

Author(s):  
Thomas Meunier ◽  
Paula Pérez Brunius ◽  
Javier Rodríguez Outerelo ◽  
Paula García Carrillo ◽  
Argelia Ronquillo ◽  
...  
2020 ◽  
Author(s):  
Thomas Meunier ◽  
Paula Pérez-Brunius ◽  
Javier Rodriguez Outerelo ◽  
Paula García-Carrillo ◽  
Argelia Ronquillo ◽  
...  

2021 ◽  
Author(s):  
Thomas Meunier ◽  
Paula Pérez Brunius ◽  
Javier Rodríguez Outerelo ◽  
Heather Furey ◽  
Amy Bower ◽  
...  

<p>The Deep Water Horizon oil spill has dramatically impacted the Gulf of Mexico from the seafloor to the surface. While dispersion of contaminants at the surface has been extensively studied, little is known about deep water dispersion properties. This study describes the results of the Deep Water Dispersion Experiment (DWDE), which consisted in the release of surface drifters and RAFOS floats drifting at 300 and 1500 dbar in the Gulf of Mexico. We show that surface diffusivity is elevated, and decreases with depth. The separation dependence of relative diffusivity follows a Richardson law at all depths. Time dependence of dispersion suggests a Richardson regime near the surface and a mixed Richardson/ballistic regime in depth at scales of [10-100 km]. Finite Scale Lyapunov Exponents and pair separation Kurtosis suggest the existence of a Lundgren regime at scales smaller than the Rossby radius near the surface, and at smaller scales in depth.</p>


2012 ◽  
Vol 109 (50) ◽  
pp. 20303-20308 ◽  
Author(s):  
H. K. White ◽  
P.-Y. Hsing ◽  
W. Cho ◽  
T. M. Shank ◽  
E. E. Cordes ◽  
...  

2012 ◽  
Author(s):  
Rick L. Giunta ◽  
Cam Van Le ◽  
Martin F. Schoener-Scott ◽  
Ryan Neal Anderson ◽  
Joshua Monroe Glass

2014 ◽  
Author(s):  
Lance Brown ◽  
Adrian Dayani ◽  
Shaun Lazenby ◽  
Jackson Miller

Check List ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 1-7
Author(s):  
Wilbert Andrés Pérez-Pech ◽  
Jesper Guldberg Hansen ◽  
Erica DeMilio ◽  
Alberto de Jesús-Navarrete ◽  
Ivonne Martínez Mendoza ◽  
...  

Deep-water sampling in the Perdido Fold Belt, Gulf of Mexico, Mexican Economic Exclusive Zone yielded five specimens of tardigrades belonging to the genus Coronarctus Renaud-Mornant, 1974. The specimens represent the first records of the genus for Mexico. Two two-clawed larvae and two four-clawed larvae of Coronarctus mexicus Romano, Gallo, D’Addabbo, Accogli, Baguley & Montagna, 2011 and a single four-clawed larval specimen of an undescribed Coronarctus species were identified. Taxonomic analysis of the specimens contributed to the knowledge of deep-sea and Mexican marine tardigrades, two data-poor areas of study.


2013 ◽  
Vol 70 (8) ◽  
pp. 1131-1140 ◽  
Author(s):  
Allen H. Andrews ◽  
Beverly K. Barnett ◽  
Robert J. Allman ◽  
Ryan P. Moyer ◽  
Hannah D. Trowbridge

Growth characteristics are poorly understood for speckled hind (Epinephelus drummondhayi), a tropical deep-water grouper of economic importance that is considered overfished. Age has been validated for early growth, but the validity of adult age estimates is unknown. A few studies of growth zones in otoliths have revealed maximum age estimates of 15–35 years, which have been uncritically assumed as longevity. To answer questions about adult age, bomb radiocarbon dating was used to provide validated age estimates. A novel aspect of this study was use of the postbomb radiocarbon decline period (ca. 1980–2004) to age younger fish, an approach that was validated with known-age otoliths. Bomb radiocarbon dating provided valid length-at-age estimates ranging from ∼5 years to more than 45 years. Age was unexpectedly greater than previous estimates for more than half the fish used in this study, and longevity may approach 60–80 years. This study extends the utility of bomb radiocarbon dating by more than 20 years and adds to the growing perspective that deep-water tropical fishes can be long-lived.


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