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Articles 31 - 60 of 73
Full-Text Articles in Marine Biology
Phylogeography Of Acartia Tonsa Dana, 1849 (Calanoida: Copepoda) And Phylogenetic Reconstruction Of The Genus Acartia Dana, 1846, Nicole J. Figueroa, Diego F. Figueroa, David Hicks
Phylogeography Of Acartia Tonsa Dana, 1849 (Calanoida: Copepoda) And Phylogenetic Reconstruction Of The Genus Acartia Dana, 1846, Nicole J. Figueroa, Diego F. Figueroa, David Hicks
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
The calanoid copepod, Acartia tonsa Dana, 1849 is one of the most abundant and well-studied estuarian species with a worldwide distribution. In this research, we use the mitochondrial cytochrome oxidase subunit I gene to study the phylogeography of A. tonsa by analyzing sequences from specimens collected in the western Gulf of Mexico (GOM) along with all sequences from previous research. We reconstruct the phylogeny for the genus Acartia Dana, 1846 and highlight numerous potential misidentifications of Acartia species deposited in GenBank. The incorrect taxonomy assigned to some of these sequences results in apparently paraphyletic relationships. This study demonstrates that A. …
Evolutionary Traits That Enable Scleractinian Corals To Survive Mass Extinction Events, Gal Dishon, Michal Grossowicz, Michael Krom, Gilad Guy, David F. Gruber, Dan Tchernov
Evolutionary Traits That Enable Scleractinian Corals To Survive Mass Extinction Events, Gal Dishon, Michal Grossowicz, Michael Krom, Gilad Guy, David F. Gruber, Dan Tchernov
Publications and Research
Scleractinian “stony” corals are major habitat engineers, whose skeletons form the framework for the highly diverse, yet increasingly threatened, coral reef ecosystem. Fossil coral skeletons also present a rich record that enables paleontological analysis of coral origins, tracing them back to the Triassic (~241 Myr). While numerous invertebrate lineages were eradicated at the last major mass extinction boundary, the Cretaceous-Tertiary/K-T (66 Myr), a number of Scleractinian corals survived. We review this history and assess traits correlated with K-T mass extinction survival. Disaster-related “survival” traits that emerged from our analysis are: (1) deep water residing (>100 m); (2) cosmopolitan distributions, …
Application Of Acoustical Remote Sensing Techniques For Ecosystem Monitoring Of A Seagrass Meadow, Megan S. Ballard, Kevin M. Lee, Jason D. Sagers, Gabriel R. Venegas, Andrew R. Mcneese, Preston S. Wilson, Abdullah Rahman
Application Of Acoustical Remote Sensing Techniques For Ecosystem Monitoring Of A Seagrass Meadow, Megan S. Ballard, Kevin M. Lee, Jason D. Sagers, Gabriel R. Venegas, Andrew R. Mcneese, Preston S. Wilson, Abdullah Rahman
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
Seagrasses provide a multitude of ecosystem services and serve as important organic carbon stores. However, seagrass habitats are declining worldwide, threatened by global climate change and regional shifts in water quality. Acoustical methods have been applied to assess changes in oxygen production of seagrass meadows since sound propagation is sensitive to the presence of bubbles, which exist both within the plant tissue and freely floating the water as byproducts of photosynthesis. This work applies acoustic remote sensing techniques to characterize two different regions of a seagrass meadow: a densely vegetated meadow of Thalassia testudinum and a sandy region sparsely populated …
Subsea 2019 Expedition To The Gorda Ridge, Darlene S. S. Lim, Nicole A. Raineault, John A. Breier, Eric W. Chan, Josh Chernov, Tamar Cohen, Matthew Deans, Angela Garcia, Christopher R. German, Michelle Hauer
Subsea 2019 Expedition To The Gorda Ridge, Darlene S. S. Lim, Nicole A. Raineault, John A. Breier, Eric W. Chan, Josh Chernov, Tamar Cohen, Matthew Deans, Angela Garcia, Christopher R. German, Michelle Hauer
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
The SUBSEA (Systematic Underwater Biogeochemical Science and Exploration Analog) program blends ocean exploration with “ocean worlds” research, along with NASA analog and work studies research, to address science, science operations, and technology knowledge gaps related to the exploration of our solar system. The science group researches venting fluids at isolated seamounts and spreading ridges in the Pacific Ocean as analog environments to putative volcanically hosted hydrothermal systems on other “ocean worlds” (defined as places in the outer solar system that could possess subsurface oceans). The science operations research group studies E/V Nautilus architecture, distributed teams, communication, and lowlatency telerobotics. The …
Implications Of Different Nitrogen Input Sources For Potential Production And Carbon Flux Estimates In The Coastal Gulf Of Mexico (Gom) And Korean Peninsula Coastal Waters, Jongsun Kim, Piers Chapman, Gilbert Rowe, Steven F. Dimarco, Daniel C. O. Thornton
Implications Of Different Nitrogen Input Sources For Potential Production And Carbon Flux Estimates In The Coastal Gulf Of Mexico (Gom) And Korean Peninsula Coastal Waters, Jongsun Kim, Piers Chapman, Gilbert Rowe, Steven F. Dimarco, Daniel C. O. Thornton
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
The coastal Gulf of Mexico (GOM) and coastal sea off the Korean Peninsula (CSK) both suffer from human-induced eutrophication. We used a nitrogen (N) mass balance model in two different regions with different nitrogen input sources to estimate organic carbon fluxes and predict future carbon fluxes under different model scenarios. The coastal GOM receives nitrogen predominantly from the Mississippi and Atchafalaya rivers and atmospheric nitrogen deposition is only a minor component in this region. In the CSK, groundwater and atmospheric nitrogen deposition are more important controlling factors. Our model includes the fluxes of nitrogen to the ocean from the atmosphere, …
Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz
Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz
Department of Earth and Atmospheric Sciences: Faculty Publications
An ecosystem’s ability to maintain structure and function following disturbance, defined as resilience, is influenced by a hierarchy of environmental controls, including climate, surface cover, and ecological relationships that shape biological community composition and productivity. This study examined lacustrine sediment records of naturally fishless lakes in Yellowstone National Park to reconstruct the response of aquatic communities to climate and trophic cascades from fish stocking. Sediment records of diatom algae did not exhibit a distinct response to fish stocking in terms of assemblage or algal productivity. Instead, 3 of 4 lakes underwent a shift to dominance by benthic diatom species from …
Ecosystem Health In Guánica Bay And La Parguera, Puerto Rico: Remote Sensing Of Ocean Color And Metal Analysis Of Coral Tissue And Surficial Sediments, Jahnelle Howe
Dissertations and Theses
Guánica Bay is an estuary located in southwest Puerto Rico, with a coral reef ecosystem at its periphery. This ecosystem is affected by sediments, nutrients, and contaminants from the watershed through the Bay and into the offshore water. This project evaluates Guánica Bay and La Parguera coastal areas through remote sensing and chemical analysis to assess coastal ecosystem health. The concentration of metals in two coral species and their associated surface sediments was were analyzed by X-ray fluorescence (XRF) and Direct Mercury Analyzer (DMA- 80). Ocean color remote sensing was used to estimate nutrient inputs and phytoplankton biomass through chlorophyll- …
Southern California Margin Benthic Foraminiferal Assemblages Record Recent Centennial-Scale Changes In Oxygen Minimum Zone, Hannah M. Palmer, Tessa M. Hill, Peter D. Roopnarine, Sarah E. Myhre, Kastherine R. Reyes, Jonas T. Donnenfield
Southern California Margin Benthic Foraminiferal Assemblages Record Recent Centennial-Scale Changes In Oxygen Minimum Zone, Hannah M. Palmer, Tessa M. Hill, Peter D. Roopnarine, Sarah E. Myhre, Kastherine R. Reyes, Jonas T. Donnenfield
Natural Sciences and Mathematics | Student Professional Publications
Microfossil assemblages provide valuable records to investigate variability in continental margin biogeochemical cycles, including dynamics of the oxygen minimum zone (OMZ). Analyses of modern assemblages across environmental gradients are necessary to understand relationships between assemblage characteristics and environmental factors. Five cores were analyzed from the San Diego margin (32∘42′00′′ N, 117∘30′00′′ W; 300–1175 m water depth) for core top benthic foraminiferal assemblages to understand relationships between community assemblages and spatial hydrographic gradients as well as for down-core benthic foraminiferal assemblages to identify changes in the OMZ through time. Comparisons of benthic foraminiferal assemblages from two size fractions (63–150 and >150 …
Deep Sea Sediments Of The Arctic Central Basin: A Potential Sink For Microplastics, Colleen Mcmaken
Deep Sea Sediments Of The Arctic Central Basin: A Potential Sink For Microplastics, Colleen Mcmaken
Scientific Communication News
No abstract provided.
The Importance Of Understanding Trophic Transfer In Top Marine Predators Due To An Increase In Plastic Production, Annika M. Markovich
The Importance Of Understanding Trophic Transfer In Top Marine Predators Due To An Increase In Plastic Production, Annika M. Markovich
Scientific Communication News
No abstract provided.
Feeding Behavior Fundamentally Affects Micro-Particle Intake In Mangrove Crabs, Rola Alsharif
Feeding Behavior Fundamentally Affects Micro-Particle Intake In Mangrove Crabs, Rola Alsharif
Scientific Communication News
No abstract provided.
Will Shark Skin Dissolve Under High Co2?, Emily K. Witt
Will Shark Skin Dissolve Under High Co2?, Emily K. Witt
Scientific Communication News
No abstract provided.
Human Vs. Bear: Who Needs Salmon More?, Brittany N. Savercool
Human Vs. Bear: Who Needs Salmon More?, Brittany N. Savercool
Scientific Communication News
No abstract provided.
How Corals Avoid Mating Between Different Species, Amanda Kempton
How Corals Avoid Mating Between Different Species, Amanda Kempton
Scientific Communication News
No abstract provided.
First Estimates Of Greenland Shark (Somniosus Microcephalus) Abundances In Arctic Waters, Taryn Szalay
First Estimates Of Greenland Shark (Somniosus Microcephalus) Abundances In Arctic Waters, Taryn Szalay
Scientific Communication News
No abstract provided.
Microplastics Invade Manta Ray Feeding Grounds Giving Rise To The Effects Of Global Plastic Pollution, Meghan Ulmer
Microplastics Invade Manta Ray Feeding Grounds Giving Rise To The Effects Of Global Plastic Pollution, Meghan Ulmer
Scientific Communication News
No abstract provided.
Battle For The Top: Killer Whales Vs. White Sharks, Michael P. Mcdonough
Battle For The Top: Killer Whales Vs. White Sharks, Michael P. Mcdonough
Scientific Communication News
No abstract provided.
Can Ocean Modeling Help Predict Where Cold-Stunned Sea Turtles Wash Up?, Mikayla L. Twiss
Can Ocean Modeling Help Predict Where Cold-Stunned Sea Turtles Wash Up?, Mikayla L. Twiss
Scientific Communication News
No abstract provided.
Dolphin Study Gives Insight Into Marine Mammal Threat Response, Marshall Hawkins
Dolphin Study Gives Insight Into Marine Mammal Threat Response, Marshall Hawkins
Scientific Communication News
No abstract provided.
White Sharks As A Novel Threat To Sea Otter Populations In California, Kimberly S. Schmutz
White Sharks As A Novel Threat To Sea Otter Populations In California, Kimberly S. Schmutz
Scientific Communication News
No abstract provided.
Feeding Ecology Of Invasive Lionfish In Southeast Florida, Ruchao Qian
Feeding Ecology Of Invasive Lionfish In Southeast Florida, Ruchao Qian
Scientific Communication News
No abstract provided.
Thirty Years Of Data Sheds Light On Plastic Pollution In The Deep Sea, Adam Warren
Thirty Years Of Data Sheds Light On Plastic Pollution In The Deep Sea, Adam Warren
Scientific Communication News
No abstract provided.
Endangered Whale Species In A Pristine Environment: Pollutant Concentrations Indicative Of A Problem?, Briana R. Coulter
Endangered Whale Species In A Pristine Environment: Pollutant Concentrations Indicative Of A Problem?, Briana R. Coulter
Scientific Communication News
No abstract provided.
Using Drones To Assess Great White Shark Behavior Along Coastal Beaches, Alydia Moorhead
Using Drones To Assess Great White Shark Behavior Along Coastal Beaches, Alydia Moorhead
Scientific Communication News
No abstract provided.
No Evidence Of Fine Scale Thermal Adaption In Green Turtles, Taylor Apter
No Evidence Of Fine Scale Thermal Adaption In Green Turtles, Taylor Apter
Scientific Communication News
No abstract provided.
New Intervention Method For Halting Stony Coral Tissue Loss Disease, Samantha Buckley
New Intervention Method For Halting Stony Coral Tissue Loss Disease, Samantha Buckley
Scientific Communication News
No abstract provided.
Social Structure Of Killer Whales (Orcinus Orca) In The Galápagos Archipelago, Mary Gad
Social Structure Of Killer Whales (Orcinus Orca) In The Galápagos Archipelago, Mary Gad
Scientific Communication News
No abstract provided.
Machine Learning Provides A Much-Needed Solution For Marine Mammal Protection, Shaman Patel
Machine Learning Provides A Much-Needed Solution For Marine Mammal Protection, Shaman Patel
Scientific Communication News
No abstract provided.
Ghost Fishing In Coral Reef Ecosystems, Katherine E. Meurer
Ghost Fishing In Coral Reef Ecosystems, Katherine E. Meurer
Scientific Communication News
No abstract provided.
Climate Change Could Impact Narwhal Consumption By Killer Whales, Mykenzee L. Munaco
Climate Change Could Impact Narwhal Consumption By Killer Whales, Mykenzee L. Munaco
Scientific Communication News
No abstract provided.