Water column poly-aromatic hydrocarbon anomalies measured with submersible gliders in the Angolan natural oil seepage province

2021 ◽  
pp. 103588
Author(s):  
Romain Jatiault ◽  
Damien Dhont ◽  
Florent Besson ◽  
Marc Tedetti ◽  
Orens Pasqueron de Fommervault ◽  
...  
Keyword(s):  
Aromatic Hydrocarbon ◽  
Water Column ◽  
Natural Oil ◽  
Oil Seepage

SANDY BEACH COMMUNITIES EXPOSED TO NATURAL OIL SEEPAGE

1983 ◽  
Vol 1983 (1) ◽  
pp. 485-489
Author(s):  
Dale Straughan
Keyword(s):  
Sandy Beach ◽  
Environmental Changes ◽  
Abiotic Factor ◽  
Long Term Study ◽  
Beach Communities ◽  
Natural Oil ◽  
Oil Seepage ◽  
Community Data ◽  
Sand Movement ◽  
Macrofaunal Community

ABSTRACT Studies of the intertidal sandy beach community in the region of natural oil seepage at Coal Oil Point commenced in 1969. This research continued as part of a long term study of natural variation in sandy beach communities as well as an investigation of the impacts on the biota of intermittent exposure to natural oil seepage. Community data were related to both localized and widespread environmental changes. Changes in the overall macrofaunal community correlate with localized sand movement in the intertidal area. Changes in species composition were related to the widespread oceanographic changes (e.g., water temperature) that occurred in the Southern California Bight during the past decade. A positive correlation between number of specimens and weight of tar on the beach is attributed to seasonal recruitment patterns rather than the presence of petroleum. Therefore the periodic stranding of petroleum is not the dominant abiotic factor influencing this community as a whole.

Natural Oil Seepage at Coal Oil Point, Santa Barbara, California

Science ◽  
1970 ◽  
Vol 170 (3961) ◽  
pp. 974-977 ◽  
Author(s):  
A. A. Allen ◽  
R. S. Schlueter ◽  
P. G. Mikolaj
Keyword(s):  
Santa Barbara ◽  
Natural Oil ◽  
Oil Seepage

Monitoring of natural oil seepage in the Lower Congo Basin using SAR observations

2017 ◽  
Vol 191 ◽  
pp. 258-272 ◽  
Author(s):  
Romain Jatiault ◽  
Damien Dhont ◽  
Lies Loncke ◽  
Dominique Dubucq
Keyword(s):  
Congo Basin ◽  
Natural Oil ◽  
Oil Seepage

scholarly journals Deflection of natural oil droplets through the water column in deep-water environments: The case of the Lower Congo Basin

2018 ◽  
Vol 136 ◽  
pp. 44-61 ◽  
Author(s):  
Romain Jatiault ◽  
Damien Dhont ◽  
Lies Loncke ◽  
Xavier Durrieu de Madron ◽  
Dominique Dubucq ◽  
...  
Keyword(s):  
Water Column ◽  
Deep Water ◽  
Congo Basin ◽  
Oil Droplets ◽  
Natural Oil

Natural oil seepage at Kobuleti Ridge, eastern Black Sea

2014 ◽  
Vol 50 ◽  
pp. 68-82 ◽  
Author(s):  
Jan-Hendrik Körber ◽  
Heiko Sahling ◽  
Thomas Pape ◽  
Christian dos Santos Ferreira ◽  
Ian MacDonald ◽  
...  
Keyword(s):  
Black Sea ◽  
Natural Oil ◽  
Oil Seepage

COMPARATIVE EVALUATION OF REAL AND SYNTHETIC APERTURE RADARS FOR THE DETECTION OF OIL POLLUTION IN THE SANTA BARBARA CHANNEL

1977 ◽  
Vol 1977 (1) ◽  
pp. 203-208
Author(s):  
Steven P. Kraus ◽  
John E. Estes ◽  
Russell R. Vollmers
Keyword(s):  
Oil Spills ◽  
Oil Pollution ◽  
Coast Guard ◽  
Synthetic Aperture ◽  
Naval Research ◽  
Santa Barbara ◽  
Natural Oil ◽  
Oil Seepage ◽  
Synthetic Aperture Radars ◽  
First Time

ABSTRACT The Coast Guard, in cooperation with the U.S. Army, Motorola Government Electronics Division, Naval Research Laboratory (NRL), and University of California, Santa Barbara Geography Remote Sensing Unit (GRSU), conducted a series of controlled tests off southern California during May 1976 to evaluate the oil detection and surface target sensing capabilities of two Motorola developed side-looking radars—a real aperture AN/APS-94D and a synthetic aperture coherent-on-receive (COR). Targets imaged during the coincident overflights included: natural oil seepage, NRL induced simulated oil spills, oil production platforms, piers, mooring buoys, commercial boats and barges, small pleasure craft, and coastal kelp beds. These overflights represented one of the few recorded instances where real and synthetic aperture radars were flown together and perhaps the first time two such systems had operated concurrently over water. Based on an analysis of imagery from the 10 coincident radar runs, COR provided better detection of natural and man-made oil slicks, while the APS-94D consistently exhibited higher surface target resolution results.

EFEECTS OF EXPOSURE TO OIL ON MYTILUS CALIFORNIANUS FROM DIFFERENT LOCALITIES

1971 ◽  
Vol 1971 (1) ◽  
pp. 485-488 ◽  
Author(s):  
Robert Kanter ◽  
Dale Straughan ◽  
William N. Jessee
Keyword(s):  
Crude Oil ◽  
Mytilus Californianus ◽  
California Coast ◽  
Natural Oil ◽  
Oil Seepage ◽  
Series Of Experiments ◽  
Oil Seep ◽  
Natural Oil Seep

ABSTRACT The results of the first two of a series of experiments in a study to determine if organisms exposed to natural oil seepage have a higher tolerance to a spill of similar crude oil than organisms that have not been exposed to natural oil seepage are presented. My tilus californianus from different localities along the California Coast were exposed to varying crude oil concentrations in the laboratory. The data shows a higher tolerance to oil in M. californianus from a natural oil seep area than in M. californianus from non-oil seep areas. There is also a different tolerance to oil between M. californianus from different non-oil seep areas.

scholarly journals Natural Surface Hydrocarbons and Soil Faunal Biodiversity: A Bioremediation Perspective

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2358
Author(s):  
Sara Remelli ◽  
Pietro Rizzo ◽  
Fulvio Celico ◽  
Cristina Menta
Keyword(s):  
Eisenia Fetida ◽  
Soil Fauna ◽  
Terrestrial Ecosystems ◽  
Soil Sampling ◽  
Folsomia Candida ◽  
Total Abundance ◽  
Polluted Soils ◽  
Natural Oil ◽  
Oil Seepage ◽  
Diptera Larvae

Hydrocarbon pollution threatens aquatic and terrestrial ecosystems globally, but soil fauna in oil-polluted soils has been insufficiently studied. In this research, soil hydrocarbon toxicity was investigated in two natural oil seepage soils in Val D’Agri (Italy) using two different approaches: (i) toxicological tests with Folsomia candida (Collembola) and Eisenia fetida (Oligochaeta) and (ii) analysis of abundance and composition of micro- and meso-fauna. Soil sampling was done along 20 m-transepts starting from the natural oil seepages. Toxicological testing revealed that no exemplars of F. candida survived, whereas specimens of E. fetida not only survived but also increased in weight in soils with higher PAH concentrations, although no reproduction was observed. Analysis on microfauna showed that Nematoda was the most abundant group, with distance from seepages not affecting its abundance. Arthropoda results showed that Acarina, Collembola and Diptera larvae represented the most abundant taxa. The highest divergence in community composition was found between soils situated near seepages and at 5 m and 10 m distance. Arthropoda taxa numbers, total abundance and Acarina were lower in soils with high PAH concentration, while Diptera larvae were not significantly affected. Earthworms, together with Nematoda and Diptera larvae, could therefore represent ideal candidates in PAH degradation studies.

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