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Articles 61 - 90 of 387

Full-Text Articles in Marine Biology

Bp Gulf Science Data Reveals Ineffectual Subsea Dispersant Injection For The Macondo Blowout, Claire B. Paris-Limouzy, Igal Berenshtein, Marica L. Trillo, Robin Faillettaz, Maria J. Olascoaga, Zachary M. Aman, Michael Schlüter, Samantha B. Joye Oct 2018

Bp Gulf Science Data Reveals Ineffectual Subsea Dispersant Injection For The Macondo Blowout, Claire B. Paris-Limouzy, Igal Berenshtein, Marica L. Trillo, Robin Faillettaz, Maria J. Olascoaga, Zachary M. Aman, Michael Schlüter, Samantha B. Joye

C-IMAGE Publications

After the Deepwater Horizon oil platform explosion, an estimated 172.2 million gallons of gas-saturated oil was discharged uncontrollably into the Gulf of Mexico, causing the largest deep-sea blowout in history. In an attempt to keep the oil submerged, massive quantities of the chemical dispersant Corexit® 9500 were deployed 1522 m deep at the gushing riser pipe of the Macondo prospect’s wellhead. Understanding the effectiveness of this unprecedented subsea dispersant injection (SSDI) is critical because deep-water drilling is increasing worldwide. Here we use the comprehensive BP Gulf Science Data (GSD) to quantify petroleum dynamics throughout the 87-day long blowout. The …

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Gulf-Wide Seafloor Surface Benthic Foraminifera Stable Isotopes From Sediment Cores Collected On Multiple Cruises From 2010-06-13 To 2017-07-19, Patrick Schwing, David J. Hollander Oct 2018

Gulf-Wide Seafloor Surface Benthic Foraminifera Stable Isotopes From Sediment Cores Collected On Multiple Cruises From 2010-06-13 To 2017-07-19, Patrick Schwing, David J. Hollander

C-IMAGE data

This dataset includes baseline stable carbon and oxygen isotope measurements from benthic foraminifera throughout the Gulf of Mexico. Stable isotope measurements were performed on Cibicidoides spp. The dataset contains the sediment core information such as location, date, and depth; and benthic foraminiferal stable carbon and oxygen isotopes. Sediment cores were collected on multiple cruises from 2010-06-13 to 2017-07-19.

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Benthic Foraminiferal Assemblages From Sediment Cores Collected On Multiple Cruises In The Gulf Of Mexico From 2010-11-18 To 2017-05-22, Patrick Schwing, David J. Hollander Oct 2018

Benthic Foraminiferal Assemblages From Sediment Cores Collected On Multiple Cruises In The Gulf Of Mexico From 2010-11-18 To 2017-05-22, Patrick Schwing, David J. Hollander

C-IMAGE data

This dataset includes baseline assemblage measurements from benthic foraminifera throughout the Gulf of Mexico. The dataset is a compilation of seafloor surface benthic foraminifera assemblages from sediment cores collected on multiple cruises and field sampling in the Gulf of Mexico from 2010-11-18 to 2017-05-22. The dataset contains the Gulf-wide diversity indices and the full benthic taxonomic counts for two regions: Cuba and the southern Gulf of Mexico. The Gulf-wide file contains the total density and diversity calculations using Fisher’s Alpha and Shannon indices from the surface-most sub-sample from each core (typically 0-2 mm). The Gulf-wide spreadsheet is comprised of data …

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Short-Lived Radioisotope (Excess Pb210) Measurements From Sediment Cores Collected Throughout The Gulf Of Mexico From 2010-11-07 To 2017-07-20, Patrick Schwing, David Hollander Oct 2018

Short-Lived Radioisotope (Excess Pb210) Measurements From Sediment Cores Collected Throughout The Gulf Of Mexico From 2010-11-07 To 2017-07-20, Patrick Schwing, David Hollander

C-IMAGE data

This dataset includes baseline short-lived radioisotope measurements from sediment cores collected throughout the Gulf of Mexico. Samples were analyzed by gamma spectrometry with High-Purity Germanium (HPGe) gamma-ray detectors (Canberra Coaxial Planar configuration) for total 210Pb (46.5 keV), 214Pb (295 keV and 351 keV), and 214Bi (609 keV) activities. The mean activity of the 214Pb (295 keV), 214Pb (351 keV), and 214Bi (609 keV) was used as a proxy for 226Ra activity and therefore the supported 210Pb that is produced in situ. The reported excess 210Pb (210Pbxs) is the difference of the total 210Pb and the supported 210Pb.

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Spatial And Temporal Variability Of PCo2, Carbon Fluxes, And Saturation State On The West Florida Shelf, L. L. Robbins, Kendra L. Daly, L. Barbero, R. Wanninkhof, R. He, H. Zong, J. T. Lisle, W. J. Cai, C. G. Smith Sep 2018

Spatial And Temporal Variability Of PCo2, Carbon Fluxes, And Saturation State On The West Florida Shelf, L. L. Robbins, Kendra L. Daly, L. Barbero, R. Wanninkhof, R. He, H. Zong, J. T. Lisle, W. J. Cai, C. G. Smith

C-IMAGE Publications

The West Florida Shelf (WFS) is a source of uncertainty for the Gulf of Mexico carbon budget. Data from the synthesis of approximately 135,000 p CO2 values from 97 cruises from the WFS show that the shelf waters fluctuate between being a weak source to a weak sink of carbon. Overall, the shelf acts as a weak source of CO2 at 0.32 ± 1.5 mol m−2 yr−1. Subregions, however, reveal slightly different trends, where surface waters associated with 40–200‐m isobath in the northern and southern WFS are generally weak sinks all year, except for summer …

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Catch Data From Fish Collected Throughout The Gulf Of Mexico From 2011 Until 2017, Steven A. Murawski Jul 2018

Catch Data From Fish Collected Throughout The Gulf Of Mexico From 2011 Until 2017, Steven A. Murawski

C-IMAGE data

This dataset represents collections taken by demersal longline fishing gears throughout the Gulf of Mexico from 2011 until 2017. They include station location information and standardized fish catch data (numbers, weights, sex, length). Catch data were classified into five sub-regions: West Florida Shelf (WFS), North Central (NC), North West (NW), South West (SW), Yucatan Peninsula (YP) and Cuba (CUB). Catch data were also classified into four species groups: Elasmobranch (EL), Other demersal (OD), Pelagic (LP) and Snapper/Grouper (SG). Data from 2011 until 2014 are also reported in C-IMAGE I dataset R1.x135.120:0002, Lesion data from fish collected off Terrebonne Bay, LA …

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The Influence Of Pressure On Crude Oil Biodegradation In Shallow And Deep Gulf Of Mexico Sediments, Uyen T. Nguyen, Sara A. Lincoln, Ana Gabriela Valladares Juárez, Martina Schedler, Jennifer L. Macalady, Rudolf Müller, Katherine H. Freeman Jul 2018

The Influence Of Pressure On Crude Oil Biodegradation In Shallow And Deep Gulf Of Mexico Sediments, Uyen T. Nguyen, Sara A. Lincoln, Ana Gabriela Valladares Juárez, Martina Schedler, Jennifer L. Macalady, Rudolf Müller, Katherine H. Freeman

C-IMAGE Publications

A significant portion of oil released during the Deepwater Horizon disaster reached the Gulf of Mexico (GOM) seafloor. Predicting the long-term fate of this oil is hindered by a lack of data about the combined influences of pressure, temperature, and sediment composition on microbial hydrocarbon remineralization in deep-sea sediments. To investigate crude oil biodegradation by native GOM microbial communities, we incubated core-top sediments from 13 GOM sites at water depths from 60–1500 m with crude oil under simulated aerobic seafloor conditions. Biodegradation occurred in all samples and followed a predictable compound class sequence dictated by molecular weight and structure. 45 …

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Wageningen Aquaria/Microcosm Experiments, Benthic Foraminifera Assemblage And Stable Isotope Measurements, Patrick Schwing, David J. Hollander Jun 2018

Wageningen Aquaria/Microcosm Experiments, Benthic Foraminifera Assemblage And Stable Isotope Measurements, Patrick Schwing, David J. Hollander

C-IMAGE data

Dataset contains benthic foraminifera assemblage and stable isotope measurements. Stable isotope measurements are presented in δ13C and δ18O (‰). Diversity indices include Shannon, Fisher’s Alpha and evenness. Benthic foraminifera abundance is reported as individuals per unit mass (indiv./g).

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Core Extrusion Bulk Density/Pore Water, Northern Gulf Of Mexico, November 2010 To September 2016, Rebekka A. Larson, Gregg R. Brooks Apr 2018

Core Extrusion Bulk Density/Pore Water, Northern Gulf Of Mexico, November 2010 To September 2016, Rebekka A. Larson, Gregg R. Brooks

C-IMAGE data

Measurement of sediment sample wet weight (g) and dry weight (g) for core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to base of cores. Bulk density is the dry weight per sampling volume expressed as g/cm^3 and is utilized in the calculation of Mass Accumulation Rates (MAR’s). Samples were collected in the northern Gulf of Mexico from November 2010 to September 2016.

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Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun, Yingcheng Lu, Mengqiu Wang, Chuanmin Hu Apr 2018

Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun, Yingcheng Lu, Mengqiu Wang, Chuanmin Hu

C-IMAGE Publications

Satellite remote sensing is well known to play a critical role in monitoring marine accidents such as oil spills, yet the recent SANCHI oil tanker collision event in January 2018 in the East China Sea indicates that traditional techniques using synthetic aperture radar or daytime optical imagery could not provide timely and adequate coverage. In this study, we show the unprecedented value of Visible Infrared Imaging Radiometer Suite (VIIRS) Nightfire product and Day/Night Band data in tracking the oil tanker's dri fting pathway and locations when all other means are not as effective for the same purpose. Such pathway and …

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Input, Output And Complete Run Files For The Atlantis Ecosystem Model Deepwater Horizon Oil Spill Simulations, Cameron Ainsworth Apr 2018

Input, Output And Complete Run Files For The Atlantis Ecosystem Model Deepwater Horizon Oil Spill Simulations, Cameron Ainsworth

C-IMAGE data

Data are complete input, output, and executable model run files for Atlantis simulations of the Deepwater Horizon oil spill. The model outputs in these folders describe simulations from 2010 to 2035; the spatial domain is the entire Gulf of Mexico. Simulations are published as Ainsworth, C.H., Paris, C.B., Perlin, N., Dornberger, L.N., Patterson, W., Chancellor, E., Murawski, S., Hollander, D., Daly, K., Romero, I.C., Coleman, F. and Perryman, H. 2018. Impacts of the Deepwater Horizon oil spill evaluated using an end-to-end ecosystem model. PLoS One, 13(1): e0190840 doi: 10.1371/journal.pone.0190840

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Dataset For: Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun Mar 2018

Dataset For: Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun

C-IMAGE data

In this dataset, we used a multi-sensor day and night satellite approach to track the SANCHI oil tanker collision and oil spill event in January 2018 in the East China Sea. The drifted on fire oil tanker was tracked by Visible Infrared Imaging Radiometer Suite (VIIRS) Nightfire product and Day/Night Band (DNB) imagery. Such pathway and locations were also reproduced with a numerical model, with RMS error of < 15 km. MultiSpectral Instrument (MSI) optical imagery during daytime shows smokes on 13 January 2018, further confirms the drifted tanker location. MSI imagery after 4 days of the tanker’s sinking (18 January 2018) reveals oil on the ocean surface to the east and northeast of the tanker sinking location. This combination of all available remote sensing and modeling techniques can provide effective means to monitor marine accidents and oil spills to assist event response.

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Dispersant Enhances Hydrocarbon Degradation And Alters The Structure Of Metabolically Active Microbial Communities In Shallow Seawater From The Northeastern Gulf Of Mexico, Lena Chu, Elisa Mercando, Roger C. Prince, Isabel C. Romero, David Hollander Mar 2018

Dispersant Enhances Hydrocarbon Degradation And Alters The Structure Of Metabolically Active Microbial Communities In Shallow Seawater From The Northeastern Gulf Of Mexico, Lena Chu, Elisa Mercando, Roger C. Prince, Isabel C. Romero, David Hollander

C-IMAGE data

The seawater samples were collected from Pensacola Beach, FL in June and August, 2016. The seawater was incubated with low concentration of oil (2ppm) with or without dispersant. Oil analysis and sequencing data were generated.

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Evaluation Of Diet Matrix Uncertainty For The Atlantis Model, Cameron Ainsworth Mar 2018

Evaluation Of Diet Matrix Uncertainty For The Atlantis Model, Cameron Ainsworth

C-IMAGE data

We conducted 1000 Atlantis simulations, using permutated diet matrices created by drawing from a beta distribution that represented uncertainty in predator diet. We also employed a statistical emulator which simulates the production of many more Atlantis runs than could be achieved through numerical simulation. This dataset includes 3 products: statistical emulator output, diet matrices, and Atlantis simulations. These are each contained in their own zip file.

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Trace Metals And Minor Elements In Southern Gulf Of Mexico Sediments Following The Ixtoc Marine Oil Blow Out Event, 2015, David W. Hastings, Thomas Bartlett Feb 2018

Trace Metals And Minor Elements In Southern Gulf Of Mexico Sediments Following The Ixtoc Marine Oil Blow Out Event, 2015, David W. Hastings, Thomas Bartlett

C-IMAGE data

Our objective is to compare the impact of two marine oil well blowouts on surface sediments in the Gulf of Mexico: the recent 2010 DWH blowout in the Northern Gulf with the Ixtoc blowout in 1979/80 in the Southern Gulf. A suite of trace and minor elements (V, Cr, Mn, Fe, Co, Ni, Cu, Sr, Cd, Mo, Ba, Re, and U) some of which are sensitive to changes in sedimentary redox conditions, was analyzed in bulk surface sediments; that data is presented here. Sediment cores were collected in the SE GoM on a research cruise on the R/V Justo Sierra …

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Impacts Of The Deepwater Horizon Oil Spill Evaluated Using An End-To-End Ecosystem Model, Cameron Ainsworth, Claire B. Paris-Limouzy, Natalie Perlin, Lindsey N. Dornberger, William F. Patterson Iii, Emily Chancellor, Steven Murawski, David J. Hollander, Kendra L. Daly, Isabel Romero, Felicia Coleman, Holly Perryman Jan 2018

Impacts Of The Deepwater Horizon Oil Spill Evaluated Using An End-To-End Ecosystem Model, Cameron Ainsworth, Claire B. Paris-Limouzy, Natalie Perlin, Lindsey N. Dornberger, William F. Patterson Iii, Emily Chancellor, Steven Murawski, David J. Hollander, Kendra L. Daly, Isabel Romero, Felicia Coleman, Holly Perryman

C-IMAGE Publications

We use a spatially explicit biogeochemical end-to-end ecosystem model, Atlantis, to simulate impacts from the Deepwater Horizon oil spill and subsequent recovery of fish guilds. Dose-response relationships with expected oil concentrations were utilized to estimate the impact on fish growth and mortality rates. We also examine the effects of fisheries closures and impacts on recruitment. We validate predictions of the model by comparing population trends and age structure before and after the oil spill with fisheries independent data. The model suggests that recruitment effects and fishery closures had little influence on biomass dynamics. However, at the assumed level of oil …

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Ecosystem Model Of The Entire Beaufort Sea Marine Ecosystem: A Temporal Tool For Assessing Food-Web Structure And Marine Animal Populations From 1970 To 2014, Paul M. Suprenand, Cameron H. Ainsworth, Carie Hoover Jan 2018

Ecosystem Model Of The Entire Beaufort Sea Marine Ecosystem: A Temporal Tool For Assessing Food-Web Structure And Marine Animal Populations From 1970 To 2014, Paul M. Suprenand, Cameron H. Ainsworth, Carie Hoover

Marine Science Faculty Publications

The Beaufort Sea coastal-marine ecosystem is a 476,000 km2 area in the Arctic Ocean, which extends from -112.5 to -158.0° longitude to 67.5 to 75.0° latitude. Within this polar area the United States indigenous communities of Barrow, Kaktovik, and Nuiqsut, and the Canadian indigenous communities of Aklavik, Inuvik, Tuktoyaktuk, Paulatuk, Ulukhaktok, and Sachs Harbour, subsist by harvesting marine mammals, fish, and invertebrates to provide the majority of their community foods. The Beaufort Sea coastal-marine ecosystem includes many specialized marine animals whose life history is tied to the sea ice, such as polar bears that rely on sea-ice for foraging activities …

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Ecological And Indigenous Community Impacts Of Oil Spill Mortality In Alaskan Marine Ecosystems, Paul M. Suprenand, Carie Hoover, Cameron H. Ainsworth, L. Dornberger, C. J. Johnson Jan 2018

Ecological And Indigenous Community Impacts Of Oil Spill Mortality In Alaskan Marine Ecosystems, Paul M. Suprenand, Carie Hoover, Cameron H. Ainsworth, L. Dornberger, C. J. Johnson

Marine Science Faculty Publications

While hydrocarbon exploration and extraction in the Arctic ebbs and flows, reduced sea ice has opened new travel routes across the Arctic. The opening of the Northwest Passage has allowed larger ships (including oil tankers) and higher traffic into remote regions. More ice loss is expected in the future. With this comes the potential for hydrocarbon spills. To quantify the ecosystem impacts of a spill in the Alaska North Slope region, an Ecospace model using the Ecopath with Ecosim software was developed. We highlight the impacts of four potential hydrocarbon contamination scenarios: a subsurface crude oil pipeline release, a surface …

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Automated Classification Of Dolphin Echolocation Click Types From The Gulf Of Mexico, Kaitlin E. Fraiser, Marie A. Roch, Melissa S. Soldevilla, Lance P. Garrison, John A. Hildebrand Dec 2017

Automated Classification Of Dolphin Echolocation Click Types From The Gulf Of Mexico, Kaitlin E. Fraiser, Marie A. Roch, Melissa S. Soldevilla, Lance P. Garrison, John A. Hildebrand

C-IMAGE Publications

Delphinids produce large numbers of short duration, broadband echolocation clicks which may be useful for species classification in passive acoustic monitoring efforts. A challenge in echolocation click classification is to overcome the many sources of variability to recognize underlying patterns across many detections. An automated unsupervised network-based classification method was developed to simulate the approach a human analyst uses when categorizing click types: Clusters of similar clicks were identified by incorporating multiple click characteristics (spectral shape and inter-click interval distributions) to distinguish within-type from between-type variation, and identify distinct, persistent click types. Once click types were established, an algorithm for …

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Dataset For: Toxicity And Mutagenicity Of The Gulf Of Mexico Waters During And After The Deepwater Horizon Oil Spill, July 2010-August 2013, Lauren Mcdaniel Nov 2017

Dataset For: Toxicity And Mutagenicity Of The Gulf Of Mexico Waters During And After The Deepwater Horizon Oil Spill, July 2010-August 2013, Lauren Mcdaniel

C-IMAGE data

The dataset is representative of 20 research cruises spanning from July 2010 to August 2013 in the North and West Florida Shelf regions of the Gulf of Mexico. This dataset reports microtoxicity data from each site and is an extension and revision of C-IMAGE I dataset R1.x135.119:0005. The North Florida Self data also contains PAH measurements for three cruises (12/6/2010, 12/15/2011, 8/6/2013).

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Species-Specific Metabolism Of Naphthalene And Phenanthrene In 3 Species Of Marine Teleosts Exposed To Deepwater Horizon Crude Oil, Erin Pulster, Kevan Main, Dana Wetzel, Steven Murawski Nov 2017

Species-Specific Metabolism Of Naphthalene And Phenanthrene In 3 Species Of Marine Teleosts Exposed To Deepwater Horizon Crude Oil, Erin Pulster, Kevan Main, Dana Wetzel, Steven Murawski

C-IMAGE Publications

The 2 most abundant polycyclic aromatic hydrocarbons (PAHs) measured in Deepwater Horizon crude oil, naphthalene and phenanthrene, and their associated homologs have both been shown to be acutely toxic in fish. Although fish have a relatively high metabolic capacity for PAHs, hydroxylated PAH (OH-PAH) derivatives formed during the initial metabolic response can negatively impact the health of fish. Species-specific metabolism of naphthalene and phenanthrene was evaluated in 3 marine teleosts, red drum (Scianops ocellatus), Florida pompano (Trachinotus carolinus), and southern flounder (Paralichthys lethostigma). Fish were exposed to Deepwater Horizon crude oil by intraperitoneal injections at time 0 and 48 h, …

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Sun Glint Critical Angle Oil Detection, Shaojie Sun Oct 2017

Sun Glint Critical Angle Oil Detection, Shaojie Sun

C-IMAGE data

This dataset includes two MODIS L1B images and the generated sun glint reflectance (LGN) data after atmospheric correction. LGN was also modeled for the two images according to the sun/view geometry, oil and water fresnel reflection. This dataset introduced atmospheric correction and different oil fresnel reflection with water in the calculation of sun glint reflectance from MODIS imagery. By doing this, the calculated sun glint reflectance results are more accurate and the original concept of sun glint critical angle is refined.

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Fish Exposure Studies: Associated Water, Sediment And Food Microbiology And Mutagenic Potential, Lauren Mcdaniel Oct 2017

Fish Exposure Studies: Associated Water, Sediment And Food Microbiology And Mutagenic Potential, Lauren Mcdaniel

C-IMAGE data

As part of an ongoing assessment of the long-term impacts of oil and dispersants on ecosystem health experiments were performed to examine the effects of exposure on different species of fish and varying routes of exposure. As a part of this study we directly assessed the mutagenic potential of the contaminated treatments as well as the surrounding environment in which the fish were contained. For these assessments we used the biologically based assay of DNA damage termed the Microscreen Assay. General microbiological parameters including total viral and bacterial counts and culturable bacterial counts were also measured. Fish experiment data are …

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Development Of A Marine Compatible Biological Assay For Mutagenic Compounds, Lauren Mcdaniel Oct 2017

Development Of A Marine Compatible Biological Assay For Mutagenic Compounds, Lauren Mcdaniel

C-IMAGE data

One of the primary negative effects of environmental oil exposure is the potential for mutagenic, or DNA damaging effects. This can lead to heritable genetic damage in higher organisms with long-term environmental impact. The biological effect of contamination is difficult to estimate on the basis of chemical profiles due to the complexity of environmental samples. Thus, biologically based assays give a closer approximation of the actual ecological impacts of contamination. To measure the mutagenic or DNA damaging potential of samples we currently utilize the Microscreen Assay, which is based upon a strain of Escherichia coli that is sensitive to mutagenic …

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Gulf Of Mexico Benthic And Planktic Foraminifera Carbon Isotopes, 2015, Patrick Schwing, Jeff Chanton Sep 2017

Gulf Of Mexico Benthic And Planktic Foraminifera Carbon Isotopes, 2015, Patrick Schwing, Jeff Chanton

C-IMAGE data

This dataset consists of benthic and planktic foraminiferal carbon isotope (C-13, C-14) measurements from sediment cores taken throughout the northern Gulf of Mexico with relation to the Deepwater Horizon. Stable isotope measurements were performed on Cibicidoides spp., Uvigerina spp. and Globigerinoides ruber (white).

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Cruises R/V Endeavor (En505) And R/V Weatherbird Ii (Wb1205) Gulf Of Mexico Water Chemistry (Spring 2012), Patrick Schwing, Jeff Chanton Sep 2017

Cruises R/V Endeavor (En505) And R/V Weatherbird Ii (Wb1205) Gulf Of Mexico Water Chemistry (Spring 2012), Patrick Schwing, Jeff Chanton

C-IMAGE data

This dataset contains water column measurements made onboard the R/V Endeavor and R/V Weatherbird in May 2012 including temperature, salinity, dissolved oxygen, methane concentrations, del13C, and 14C of dissolved inorganic carbon (DIC).

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Northern Gulf Of Mexico Benthic And Planktic Foraminifera Taxonomy, 2011-2015, Patrick Schwing Sep 2017

Northern Gulf Of Mexico Benthic And Planktic Foraminifera Taxonomy, 2011-2015, Patrick Schwing

C-IMAGE data

This dataset consists of species-level benthic and planktic foraminiferal assemblages identified from sediment cores taken throughout the northern Gulf of Mexico with relation to the Deepwater Horizon and the Southern Gulf of Mexico in relation to the Ixtoc 1 platform.

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Predicting The Consequence Of Natural And Chemical Dispersion For Oil Slick Size Over Time, Marieke Zeinstra-Helfrich, Wierd Koops, Albertinka Murk Sep 2017

Predicting The Consequence Of Natural And Chemical Dispersion For Oil Slick Size Over Time, Marieke Zeinstra-Helfrich, Wierd Koops, Albertinka Murk

C-IMAGE Publications

Application of dispersants aims to enhance the natural dispersion process in order to reduce the size of the slick and the amount of oil at the surface. This study presents an approach for modeling the development of the surface oil slick as a function of the wind speed, oil viscosity, and dispersant application. We modeled the oil slick mass distribution across a transect through the slick over time taking into account the continuous entrainment of oil, resurfacing process of the different oil droplet size classes and horizontal transport. Outcomes show distinctively different oil slick features, depending on how favorable conditions …

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Landsat Based Sargassum Coverage In The Northern Gulf Of Mexico, 2010, Chuanmin Hu, Lian Feng Aug 2017

Landsat Based Sargassum Coverage In The Northern Gulf Of Mexico, 2010, Chuanmin Hu, Lian Feng

C-IMAGE data

This dataset contains the sargassum coverage in the northeastern Gulf of Mexico detected using both Landsat remote sensing images and airborne AVIRIS data. The mean Sargassum coverage during the four quarters of 2010 for the study region are also provided. Dataset results are provided in Excel format and correspond to the the publication: Hu, C.; Hardy, R.; Ruder, E.; Geggel, A.; Feng, L.; Powers, S.; Hernandez, F.; Graettinger, G.; Bodnar, J.; McDonald, T. (2016). Sargassum coverage in the northeastern Gulf of Mexico during 2010 from Landsat and airborne observations: Implications for the Deepwater Horizon oil spill impact assessment. Marine Pollution …

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Ecopath With Ecosim Model Of The West Florida Shelf Representing 1980 For Harmful Algal Bloom Simulations, Cameron Ainsworth, Alisha Gray Aug 2017

Ecopath With Ecosim Model Of The West Florida Shelf Representing 1980 For Harmful Algal Bloom Simulations, Cameron Ainsworth, Alisha Gray

C-IMAGE data

This is an Ecopath with Ecosim model of the West Florida Shelf. It is based on a model constructed by Mahmoudi (unpublished data) (see Okey et al. 2004 for an application) and later modified Gray et al. 2013 to incorporate additional exploited and non-exploited species and life stages known to be sensitive to harmful algal blooms (HABs). To incorporate HABs an additional (pseudo) fishing fleet is added into the model to provide a red tide mortality driver on adult fish and invertebrates. Biomass caught by this fleet is immediately cycled into the detritus pool, and thus nutrients from killed fish …

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