Evolution and structure of a coastal squirt off the Mississippi River delta: Northern Gulf of Mexico

1996 ◽  
Vol 101 (C9) ◽  
pp. 20643-20655 ◽  
Author(s):  
Nan D. Walker ◽  
Oscar K. Huh ◽  
Lawrence J. Rouse ◽  
Stephen P. Murray
Keyword(s):  
Gulf Of Mexico ◽  
Mississippi River ◽  
River Delta ◽  
Mississippi River Delta ◽  
Northern Gulf Of Mexico

Validating the occurrence of Caribbean reef sharks, Carcharhinus perezi (Poey), (Chondrichthyes: Carcharhiniformes) in the northern Gulf of Mexico, with a key for sharks of the family Carcharhinidae inhabiting the region

Zootaxa ◽  
2011 ◽  
Vol 2933 (1) ◽  
pp. 65 ◽  
Author(s):  
WILLIAM B. DRIGGERS III ◽  
ERIC R. HOFFMAYER ◽  
EMMA L. HICKERSON ◽  
TIMOTHY L. MARTIN ◽  
CHRISTOPHER T. GLEDHILL
Keyword(s):  
Gulf Of Mexico ◽  
North Atlantic ◽  
Mississippi River ◽  
North Atlantic Ocean ◽  
Shark Species ◽  
Mississippi River Delta ◽  
The Bahamas ◽  
Northern Gulf Of Mexico ◽  
The Family ◽  
Reef Sharks

Among the sharks inhabiting the continental shelf waters of the western North Atlantic Ocean, those within the genus Carcharhinus are the most speciose (Castro 2011). Authoritative sources agree on the presence of twelve species of carcharhinids in the northern Gulf of Mexico; however, they disagree on the presence of a thirteenth species, C. perezi (Poey), in the region (Compagno 1984, Compagno 2002, McEachran & Fechhelm 1998, Castro 2011). While the range of C. perezi is well-documented to extend from the southeastern coast of Florida and the Bahamas to Brazil (Castro 2011), published records of C. perezi occurring in the northern Gulf of Mexico are limited to two sources. In their description of Eulamia springeri, a junior synonym of C. perezi, Bigelow & Schroeder (1944) place the species in the northern Gulf of Mexico based on “a somewhat shrivelled skin with head” from a specimen collected off the west coast of Florida that was reported by the authors to be “probably of this species.” Later, Springer (1960) reported the capture of a single specimen off the Mississippi River Delta in 1947; however, no detail of the capture was provided other than it being listed within a table summarizing shark species collected during exploratory fishing operations.

Evidence That an Optical Tail in the Gulf of Mexico After Tropical Cyclone Isaac was the Result of Offshore Advection of Coastal Water

2014 ◽  
Vol 48 (4) ◽  
pp. 27-35 ◽  
Author(s):  
Bumjun Kil ◽  
Jerry D. Wiggert ◽  
Stephan D. Howden
Keyword(s):  
Gulf Of Mexico ◽  
Mississippi River ◽  
Mesoscale Eddy ◽  
Remotely Sensed ◽  
Current Data ◽  
River Delta ◽  
Sea Surface Salinity ◽  
Mississippi River Delta ◽  
Surface Salinity ◽  
Simulated Trajectory

AbstractThis study investigates the hypothesis of Acker's Web report in 2013 that an optical tail of high chlorophyll a, observed in the open Gulf of Mexico (GoM) approximately 2 weeks after tropical storm Isaac made landfall in coastal Louisiana, was due to advection of outflowing Mississippi River related with the mesoscale eddy field in the open GoM. By using available in situ data and data from multiple satellites, strong evidence was found to support Acker's hypothesis. Drifting buoy, remotely sensed sea surface salinity, and surface geostrophic current data were used to show that low-salinity water (LSW) was indeed associated with the optical tail. Remotely sensed colored dissolved organic matter indicated that the LSW was of coastal origin, and satellite-observed rain rate indicated that this LSW in the optical tail was not due to local precipitation. The path of freshwater from the Mississippi River Delta to the region offshore in the optical tail was shown to be similar to a simulated trajectory estimated by surface geostrophic currents; likewise, the drifting buoys deployed near the shelf break offshore of the Mississippi River Delta prior to the peak in discharge.

scholarly journals MUDLUMPS AT THE MOUTHS OF THE MISSISSIPPI RIVER

2000 ◽  
Vol 1 (2) ◽  
pp. 11 ◽  
Author(s):  
James P. Morgan
Keyword(s):  
Gulf Of Mexico ◽  
Mississippi River ◽  
River Delta ◽  
Mississippi River Delta ◽  
River Waters ◽  
Sedimentary Deposits ◽  
River Mouths

Mudlump is a popular name for the upswellings of clay which commonly form islands near the mouths of the Mississippi River passes. These features usually are associated with the bars at the river mouths. The bars are localized sedimentary deposits formed where the river waters enter the relatively still Gulf of Mexico. At present the mudlumps are found within a few thousand feet of the mouth of North Pass, Pass A Loutre, Northeast Pass, Southeast Pass, old Balize Bayou, South Pass and Southwest Pass. Mudlumps appear to be a phenomenon unique to the Mississippi River Delta for they are unreported from any other locality.

scholarly journals Sediment Chemistry and Meiofauna from the Northern Gulf of Mexico Continental Shelf

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Ceil C. Martinec ◽  
Jonathan M. Miller ◽  
Nathan K. Barron ◽  
Rui Tao ◽  
Kewei Yu ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Mississippi River ◽  
Coarse Sand ◽  
Sediment Chemistry ◽  
Mississippi River Delta ◽  
Northern Gulf Of Mexico ◽  
Total Pahs ◽  
Carbon Concentrations

This study examined sediment chemistry, granulometry, and meiofauna on the northern Gulf of Mexico continental shelf from central Louisiana to Apalachicola, Florida. Sediment samples were collected in October/November 2012 with a Shipek grab sampler from 26 locations (extending from 28°18′46.079′′N, 91°10′44.471′′W to 29°3′48.383′′N, 85°28′25.679′′W) at depths ranging from 49 to 361 m. Sediment analysis revealed two distinct profiles to the east and west of the Mississippi River Delta at approximately 88°30′W. The concentrations of silt + clay, organic carbon, Ba, Cr, Cu, Fe, Ni, Pb, V, and Zn were higher in western sites and positively correlated with Al concentrations. Eastern sites contained sandier sediments with lower organic carbon concentrations and higher Sr and Ca concentrations. Nematode densities were higher at western sites and positively correlated with Al, Cr, Cu, Fe, Ni, Pb, Zn, silt + clay, and organic carbon concentrations. Copepod densities correlated with very coarse + coarse sand, exhibiting higher densities at eastern sites. PAH concentrations were relatively low, with all sites having <1700 µg/kg total PAHs. This study has revealed two distinct sediment profiles in the eastern and western zones of the study, which appear to influence the nematode and copepod densities.

A NORTH AMERICAN ANALOG FOR HIGH ARSENIC GROUNDWATER FROM BANGLADESH AND WEST BENGAL, INDIA: THE CASE OF THE MISSISSIPPI RIVER DELTA

2016 ◽  
Author(s):  
Karen Johannesson ◽  
◽  
Ningfang Yang ◽  
Katherine Telfeyan ◽  
T. Jade Mohajerin ◽  
...  
Keyword(s):  
Mississippi River ◽  
North American ◽  
West Bengal ◽  
River Delta ◽  
Mississippi River Delta ◽  
High Arsenic ◽  
High Arsenic Groundwater

Carbon storage in the Mississippi River delta enhanced by environmental engineering

2017 ◽  
Vol 10 (11) ◽  
pp. 846-851 ◽  
Author(s):  
Michael R. Shields ◽  
Thomas S. Bianchi ◽  
David Mohrig ◽  
Jack A. Hutchings ◽  
William F. Kenney ◽  
...  
Keyword(s):  
Carbon Storage ◽  
Mississippi River ◽  
River Delta ◽  
Environmental Engineering ◽  
Mississippi River Delta

The Effects of Hurricane Camille on the Marshes of the Mississippi River Delta

Ecology ◽  
1973 ◽  
Vol 54 (5) ◽  
pp. 1118-1123 ◽  
Author(s):  
Robert H. Chabreck ◽  
A. W. Palmisano
Keyword(s):  
Mississippi River ◽  
River Delta ◽  
Mississippi River Delta

Offshore Platforms and Pipelines in Mississippi River Delta

1980 ◽  
Vol 106 (8) ◽  
pp. 853-869
Author(s):  
Robert G. Bea ◽  
Jean M.E. Audibert
Keyword(s):  
Mississippi River ◽  
River Delta ◽  
Mississippi River Delta ◽  
Offshore Platforms
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