Combined Use Of Edna Metabarcoding And Video Surveillance For The Assessment Of Fish Biodiversity,
2018
Curtin University of Technology
Combined Use Of Edna Metabarcoding And Video Surveillance For The Assessment Of Fish Biodiversity, Michael Stat, Jeffrey John, Joseph D. Dibattista, Stephen J. Newman, Michael Bunce, Euan S. Harvey
Fisheries Research Articles
Monitoring communities of fish is important for the management and sustainability of fisheries and marine ecosystems. Baited remote underwater video systems (BRUVs) are among the most effective nondestructive techniques for sampling bony fishes and elasmobranchs (sharks, rays, and skates). However, BRUVs sample visually conspicuous biota; hence, some taxa are undersampled or not recorded at all. We compared the diversity of fishes characterized using BRUVs with diversity detected via environmental DNA (eDNA) metabarcoding. We sampled seawater and captured BRUVs imagery at 48 locales that included reef and seagrass beds inside and outside a marine reserve (Jurien Bay in Western Australia). Eighty-two …
Spatiotemporal Change In The Benthic Community Of Southeast Florida,
2018
Nova Southeastern University
Spatiotemporal Change In The Benthic Community Of Southeast Florida, Nicholas P. Jones
HCNSO Student Theses and Dissertations
High-latitude reefs have been postulated as refugia, centers for resilience or the first areas to undergo re-organization under climate change. The Southeast Florida Reef Tract (SEFRT) is a high-latitude reef system (>25 °N) running parallel to the highly urbanized coastline of southeast Florida. With a benthic community comprised of a mixture of coral reef associated assemblages, the SEFRT is towards the northern limit of stony coral cover due to temperature constraints. This study analyzed spatial variations in benthic cover, spatiotemporal changes in the benthic community and the impact of spatial and temporal fluctuations in temperature on benthic cover on …
Presence/Absence And Density Data For Epipelagic Tows Collected During R/V Blazing Seven Cruises Lf2016a And Lf2016b, Northern Gulf Of Mexico From 2016-06-09 To 2016-07-28,
2018
Texas A&M University
Presence/Absence And Density Data For Epipelagic Tows Collected During R/V Blazing Seven Cruises Lf2016a And Lf2016b, Northern Gulf Of Mexico From 2016-06-09 To 2016-07-28, Jay R. Rooker, David Wells
DEEPEND Datasets
This dataset reports presence/absence and density data for epipelagic tows collected in the northern Gulf of Mexico during R/V Blazing Seven cruises LF2016A and LF2016B (2016-06-09 to 2016-07-28). Larval fishes were sampled from 48 stations and cruise data were collected at each site including latitude/longitude, date, time, environmental data (temperature, salinity, dissolved oxygen) and Sargassum dry weight. Larval catch data before and after the oil spill will be compared to improve our understanding of the causes of temporal variability as it relates to the Deep-Water Horizon oil spill (DWHOS). Habitat associations of selected taxa (billfishes, tunas, dolphinfishes, flyingfishes) will be …
Effects Of Ocean Warming, Sedimentation, And Parental Genotype On The Post-Settlement Survival And Growth Of Acropora Cervicornis Recruits,
2018
Nova Southeastern University
Effects Of Ocean Warming, Sedimentation, And Parental Genotype On The Post-Settlement Survival And Growth Of Acropora Cervicornis Recruits, Jena Robbins
HCNSO Student Theses and Dissertations
Ocean warming and increased sedimentation from coastal activities are major threats to coral persistence. This study assessed the effects of increased temperature and sedimentation on the survival and growth of Acropora cervicornisrecruits. The potential for adults from different regions and genotypes to confer their offspring with higher or lower tolerance to heat and/or sediment was also determined. Gametes were collected and brought to the laboratory for cross fertilization of different genotypes within the regions collected. Larval rearing and settlement were then performed in the laboratory. Newly settled recruits were reared at 29 and 31°C (current summer temperature for August …
Prototype Of A Fish Inspired Swimming Silk Robot,
2018
Chapman University
Prototype Of A Fish Inspired Swimming Silk Robot, Cassandra M. Donatelli, Sarah A. Bradner, Juanita Mathews, Erin Sanders, Casey R. Culligan, David Kaplan, Eric D. Tytell
Engineering Faculty Articles and Research
Elongate fishes have evolved hundreds of times throughout the tree of life. They occupy many aquatic environments, from streams and ponds to the deepest parts of the ocean. Due to their long body and numerous vertebrae, they are also highly flexible animals, which makes them useful as bioinspiration for designs in the field of soft robotics. We present a biodegradable soft robot prototype, inspired by elongate fishes. The robot's body is primarily composed of a silk hydrogel with embedded fibers to mimic the structure of natural fish skin. When actuated at the front, the flexible gel prototype mimics the undulatory …
Catch Data From Fish Collected Throughout The Gulf Of Mexico From 2011 Until 2017,
2018
University of South Florida
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 …
The Influence Of Pressure On Crude Oil Biodegradation In Shallow And Deep Gulf Of Mexico Sediments,
2018
The Pennsylvania State University
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 …
Combined Effects Of Deepwater Horizon Crude Oil And Environmental Stressors On Fundulus Grandis Embryos,
2018
University of Southern Mississippi
Combined Effects Of Deepwater Horizon Crude Oil And Environmental Stressors On Fundulus Grandis Embryos, Maria L. Rodgers, Elizabeth R. Jones, Christopher Klinkhamer, Cecon T. Mahapatra, Jennifer Serafin, Thijs Bosker, Chris Perkins, Robert J. Griffitt, Sylvain De Guise, Maria S. Sepúlveda
Faculty Publications
In the present study, we examined how sensitivity to oil changes in combination with environmental stressors in Fundulus grandis embryos. We exposed embryos (fertilization) to a range of high‐energy water accommodated fraction (HEWAF) concentrations (0–50 parts per billion [ppb] total polycyclic aromatic hydrocarbons [PAHs]) made from Macondo crude oil in conjunction with various environmental conditions (temperature: 20 and 30 °C; salinity: 3, 7, and 30 practical salinity units [PSU]; and dissolved oxygen: 2 and 6 mg/L). Endpoints included mortality, hatching rates, and expression of cytochrome p450 1a and 1c (cyp1a, cyp1c) in hatched larvae. There was 100% …
Plasticity Of Foraging Behaviors In Response To Diverse Environmental Conditions,
2018
University of California, Santa Cruz
Plasticity Of Foraging Behaviors In Response To Diverse Environmental Conditions, Morgan Gilmour, José Castillo‐Guerrero, Abram Fleishman, Salvador Hernández‐Vázquez, Hillary Young, Scott Shaffer
Faculty Publications, Biological Sciences
Due to rapidly changing global environmental conditions, many animals are now experiencing concurrent changes in both resource availability and the foraging cues associated with finding those resources. By employing flexible, plastic foraging strategies that use different types of environmental foraging cues, animals could adapt to these novel future environments. To evaluate the extent to which such flexibility and plasticity exist, we analyzed a large dataset of a clade (Sulidae; the boobies) of widespread aerial tropical predators that feed in highly variable marine habitats. These surface foragers are typical of many ocean predators that face dynamic and patchy foraging environments and …
Climate And Plant Controls On Soil Organic Matter In Coastal Wetlands,
2018
The University of Texas Rio Grande Valley
Climate And Plant Controls On Soil Organic Matter In Coastal Wetlands, Michael J. Osland, Christopher A. Gabler, James B. Grace, Richard H. Day, Meagan L. Mccoy, Jennie L. Mcleod, Andrew S. From, Nicholas M. Enwright, Laura C. Feher, Camille L. Stagg
School of Earth, Environmental, & Marine Sciences Faculty Publications
Coastal wetlands are among the most productive and carbon‐rich ecosystems on Earth. Long‐term carbon storage in coastal wetlands occurs primarily belowground as soil organic matter (SOM). In addition to serving as a carbon sink, SOM influences wetland ecosystem structure, function, and stability. To anticipate and mitigate the effects of climate change, there is a need to advance understanding of environmental controls on wetland SOM. Here, we investigated the influence of four soil formation factors: climate, biota, parent materials, and topography. Along the northern Gulf of Mexico, we collected wetland plant and soil data across elevation and zonation gradients within 10 …
Inventory Of Oceanic Fauna Data Including Species, Weight, And Measurements From R/V Point Sur (Cruise Dp05) In The Gulf Of Mexico From 2017-05-01 To 2017-05-11,
2018
Nova Southeastern University
Inventory Of Oceanic Fauna Data Including Species, Weight, And Measurements From R/V Point Sur (Cruise Dp05) In The Gulf Of Mexico From 2017-05-01 To 2017-05-11, April Cook, Tracey Sutton
DEEPEND Datasets
This dataset includes an inventory of Gulf of Mexico oceanic fauna data including species, weight, and measurements collected from R/V Point Sur (Cruise DP05) from 2017-05-01 to 2017-05-11. The main gear type used was a 10-m2 Multiple Opening Closing Net and Environmental Sensing System (MOCNESS). The MOCNESS was fitted with 6 nets which were opened according to the following depth scheme: net 0 from the surface to 1500m, net 1 from 1500-1200m, net 2 from 200-1000m, net 3 from 1000-600m, net 4 from 600-200m, and net 5 from 200m to the surface. Two trawls were conducted at each station sampled …
Ongoing Transposon-Mediated Genome Reduction In The Luminous Bacterial Symbionts Of Deep-Sea Ceratioid Anglerfishes,
2018
Cornell University
Ongoing Transposon-Mediated Genome Reduction In The Luminous Bacterial Symbionts Of Deep-Sea Ceratioid Anglerfishes, Tory Hendry, Lindsay L. Freed, Dana Fadera, Dante Fenolio, Tracey Sutton, Jose Lopez
Marine & Environmental Sciences Faculty Articles
Diverse marine fish and squid form symbiotic associations with extracellular bioluminescent bacteria. These symbionts are typically free-living bacteria with large genomes, but one known lineage of symbionts has undergone genomic reduction and evolution of host dependence. It is not known why distinct evolutionary trajectories have occurred among different luminous symbionts, and not all known lineages previously had genome sequences available. In order to better understand patterns of evolution across diverse bioluminescent symbionts, we de novo sequenced the genomes of bacteria from a poorly studied interaction, the extracellular symbionts from the “lures” of deep-sea ceratioid anglerfishes. Deep-sea anglerfish symbiont genomes are …
Southeast Florida Large (>2 Meter) Diseased Coral Colony Intervention Summary Report,
2018
Nova Southeastern University
Southeast Florida Large (>2 Meter) Diseased Coral Colony Intervention Summary Report, Brian K. Walker, Alysha Brunelle
Marine & Environmental Sciences Faculty Reports
No abstract provided.
Effects Of Oil On Mollusk And Crustacean Populations, Behavior, And Predator-Prey Interactions,
2018
Louisiana State University and Agricultural and Mechanical College
Effects Of Oil On Mollusk And Crustacean Populations, Behavior, And Predator-Prey Interactions, Elizabeth Marie Robinson
LSU Doctoral Dissertations
The Deepwater Horizon blowout and oil spill in April 2010 released ~5 million barrels of oil into the Gulf of Mexico. Approximately 1,773 km of shoreline was oiled along the northern Gulf of Mexico coast, and ~60% of the oiling ended up on Louisiana salt marsh habitat. The objective of this dissertation was to examine the effects of DWH oil on predator-prey relationships between blue crabs and periwinkle snails, as well as mollusk and blue crab population structure. A broad spatial-temporal field study in Barataria and Terrebonne Bays was used to examine the legacy of oil on five species of …
Characterization Of The Bioluminescent Symbionts From Ceratioids Collected In The Gulf Of Mexico,
2018
Nova Southeastern University
Characterization Of The Bioluminescent Symbionts From Ceratioids Collected In The Gulf Of Mexico, Lindsay L. Freed
HCNSO Student Theses and Dissertations
Anglerfishes are easily one of the most popular deep-sea creatures due to their menacing appearance, extreme sexual dimorphism, parasitic mating approach, and eye catching bioluminescent lure. Unlike most bioluminescent fishes, which intrinsically generate light, female anglerfishes belonging to nine of the 11 families within the suborder Ceratioidei (deep-sea anglerfishes) have developed a symbiotic relationship with bioluminescent bacteria that are housed within the light organs. Previous molecular work had identified symbionts from two anglerfish species as novel and possibly unculturable taxa (Haygood et al., 1992), but nothing more has been revealed about the bioluminecent symbionts of ceratioids. As part of …
Stability, Persistence And Habitat Associations Of The Pearl Darter Percina Aurora In The Pascagoula River System, Southeastern Usa,
2018
University of Southern Mississippi
Stability, Persistence And Habitat Associations Of The Pearl Darter Percina Aurora In The Pascagoula River System, Southeastern Usa, Scott R. Clark, William T. Slack, Brian Kreiser, Jacob F. Schaefer, Mark A. Dugo
Faculty Publications
The southeastern United States represents one of the richest collections of aquatic biodiversity worldwide; however, many of these taxa are under an increasing threat of imperilment, local extirpation, or extinction. The pearl darter Percina aurora is a small-bodied freshwater fish endemic to the Pearl and Pascagoula river systems of Mississippi and Louisiana (USA). The last collected specimen from the Pearl River drainage was taken in 1973, and it now appears that populations in this system are likely extirpated. This reduced the historical range of this species by approximately 50%, ultimately resulting in federal protection under the US Endangered Species Act …
Heavy Metal Accumulation In Seagrasses In Southeastern Florida,
2018
Halmos College of Natural Sciences and Oceanography
Heavy Metal Accumulation In Seagrasses In Southeastern Florida, Erin Smith
HCNSO Student Theses and Dissertations
Seagrass beds are among the most ecologically important systems in the marine environment. They provide the primary production to nearby coral reef and mangrove communities, and seagrasses comprise a large component of the diets of many marine organisms including fishes, small invertebrate species, and many protected species such as manatees and sea turtles. This consumption provides a pathway for many contaminants to enter the marine food web via the seagrasses. The coastal location of seagrass beds causes them to be especially susceptible to anthropogenic pollution, including accumulation of heavy metals, which has been shown to have many adverse health effects …
Management Strategies To Minimize The Dredging Impacts Of Coastal Development On Fish And Fisheries,
2018
University of Queensland
Management Strategies To Minimize The Dredging Impacts Of Coastal Development On Fish And Fisheries, Amelia S. Wenger, Christopher A. Rawson, Shaun K. Wilson, Stephen J. Newman, Michael J. Travers, Scott Atkinson, Nicola Browne, Douglas Clarke, Martial Depczynski, Paul L A Erftemeijer, Richard D. Evans, Jean-Paul A. Hobbs, Jennifer L. Mcilwain, Dianne Mclean, Benjamin J. Saunders, Euan S. Harvey
Fisheries Research Articles
Accelerating coastal development and shipping activities dictate that dredging operations will intensify, increasing potential impacts to fishes. Coastal fishes have high economic, ecological, and conservation significance and there is a need for evidence-based, quantitative guidelines on how to mitigate the impacts of dredging activities. We assess the potential risk from dredging to coastal fish and fisheries on a global scale. We then develop quantitative guidelines for two management strategies: threshold reference values and seasonal restrictions. Globally, threatened species and nearshore fisheries occur within close proximity to ports. We find that maintaining suspended sediment concentrations below 44 mg/L (15–121 bootstrapped CI) …
Exposure To Crude Oil And Chemical Dispersant May Impact Marine Microbial Biofilm Composition And Steel Corrosion,
2018
George Mason University
Exposure To Crude Oil And Chemical Dispersant May Impact Marine Microbial Biofilm Composition And Steel Corrosion, Jennifer Salerno, Brenda Little, Jason Lee, Leila J. Hamdan
Faculty Publications
The release of hydrocarbons and chemical dispersant in marine environments may disrupt benthic ecosystems, including artificial reefs, formed by historic steel shipwrecks, and their associated organisms. Experiments were performed to determine the impacts of crude oil, dispersed crude oil, and dispersant on the community structure and function of microorganisms in seawater (SW) and biofilms formed on carbon steel, a common ship hull construction material. Steel corrosion was also monitored to illustrate how oil spills may impact preservation of steel shipwrecks. Microcosms were filled with seawater (SW) and incubated at 4°C. Carbon steel disks (CSDs) were placed in each tank, and …
Wageningen Aquaria/Microcosm Experiments, Benthic Foraminifera Assemblage And Stable Isotope Measurements,
2018
University of South Florida
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).
