Nematode and copepod diversity (2012) from Louisiana near the Deepwater Horizon oil spill

Landers, Stephen C.; Nichols, Alfred C.; Barron, Nathan K.; Schimmer, Craig A.; Tao, Rui; Yu, Kewei; Stewart, Paul M.; Ólafsson, Emil

doi:10.2988/0006-324x-127.1.47

Cited by 16 publications

(7 citation statements)

References 16 publications

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“…This study examines continental shelf sediment chemistry and general meiofauna trends near the 100 m isobath in the northern GOM. This research expands on a preliminary report by Landers et al [9], by examining meiofauna and sediment relationships over a broad area of the northern GOM continental shelf.…”

Section: Introductionmentioning

confidence: 62%

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

Martinec

Miller

Barron

et al. 2014

International Journal of Oceanography

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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.

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Section: Introductionmentioning

confidence: 62%

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

Martinec

Miller

Barron

et al. 2014

International Journal of Oceanography

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“…In soft sediments, Landers et al (2014) sampled the meiobenthos in 2012 in areas as close as 54 km from the blowout site and found that diversity and abundances were high and similar to those found in pre-spill collections. No correlation between meiofaunal density and sediment contaminants was observed.…”

Section: Impacts On the Benthosmentioning

confidence: 77%

How Did the Deepwater Horizon Oil Spill Affect Coastal and Continental Shelf Ecosystems of the Gulf of Mexico?

Murawski¹,

Fleeger²,

Patterson³

et al. 2016

Oceanog

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“…In contrast in 2012, there were no significant correlations between meiofauna densities and sediment concentrations of metals and PAH at five more shallow stations at the shelf edge that may have been affected by marine snow fallout from the DWH oil spill (Landers et al, 2014). There was also a positive microbial response to petroleum enrichment indicated by increased species richness of ciliated protists in the nepheloid layer and water column at deepwater sites affected by the spill (Moss et al, 2015).…”

Section: Deep Sea Benthos and Coralsmentioning

confidence: 86%

“…Impacts of oil snow were investigated in different categories of benthic communities inhabiting soft bottom sediments in the vicinity of the DWH well, included meio-and macrofauna (Landers et al, 2014;Montagna et al, 2013;Wei et al, 2012), megafauna (Felder et al, 2014;Valentine and Benfield, 2013), seaweeds (Felder et al, 2014) and deep-water corals (Fisher et al, 2014a;Fisher et al, 2014b;Hsing et al, 2013;Prouty et al, 2014;White et al, 2012a). The sedimentation pulse of organic-rich material changed sediment redox conditions, with a subsequent change in profiles of the redox-sensitive metals manganese, rhenium and cadmium (Hastings et al, 2014).…”

Section: Deep Sea Benthos and Coralsmentioning

confidence: 99%

Environmental effects of the Deepwater Horizon oil spill: A review

Beyer

Trannum

Bakke

et al. 2016

Marine Pollution Bulletin

590

243

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The Deepwater Horizon oil spill constituted an ecosystem-level injury in the northern Gulf of Mexico. Much oil spread at 1100-1300m depth, contaminating and affecting deepwater habitats. Factors such as oil-biodegradation, ocean currents and response measures (dispersants, burning) reduced coastal oiling. Still, >2100km of shoreline and many coastal habitats were affected. Research demonstrates that oiling caused a wide range of biological effects, although worst-case impact scenarios did not materialize. Biomarkers in individual organisms were more informative about oiling stress than population and community indices. Salt marshes and seabird populations were hard hit, but were also quite resilient to oiling effects. Monitoring demonstrated little contamination of seafood. Certain impacts are still understudied, such as effects on seagrass communities. Concerns of long-term impacts remain for large fish species, deep-sea corals, sea turtles and cetaceans. These species and their habitats should continue to receive attention (monitoring and research) for years to come.

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Nematode and copepod diversity (2012) from Louisiana near the Deepwater Horizon oil spill

Cited by 16 publications

References 16 publications

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

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

How Did the Deepwater Horizon Oil Spill Affect Coastal and Continental Shelf Ecosystems of the Gulf of Mexico?

Environmental effects of the Deepwater Horizon oil spill: A review

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