Open Access. Powered by Scholars. Published by Universities.®

Marine Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

8,458 Full-Text Articles 13,408 Authors 584,401 Downloads 161 Institutions

All Articles in Marine Biology

Faceted Search

8,458 full-text articles. Page 7 of 227.

Deepwater Horizon And The Rise Of The Omics, Joel E. Kostka, Samantha Joye, Rita Collwell 2020 Georgia Institute of Technology

Deepwater Horizon And The Rise Of The Omics, Joel E. Kostka, Samantha Joye, Rita Collwell

C-IMAGE Publications

Microbial genomics techniques came of age following the Deepwater Horizon spill, offering researchers unparalleled insights into how ecosystems respond to such environmental disasters.


In The Face Of Climate Change And Exhaustive Exercise: The Physiological Response Of An Important Recreational Fish Species, Daniel P. Crear, Richard Brill, Lauren M.L. Averilla, Sara C. Meakem, Kevin C. Weng 2020 Virginia Institute of Marine Science

In The Face Of Climate Change And Exhaustive Exercise: The Physiological Response Of An Important Recreational Fish Species, Daniel P. Crear, Richard Brill, Lauren M.L. Averilla, Sara C. Meakem, Kevin C. Weng

VIMS Articles

Cobia (Rachycentron canadum) support recreational fisheries along the US mid- and south-Atlantic states and have been recently subjected to increased fishing effort, primarily during their spawning season in coastal habitats where increasing temperatures and expanding hypoxic zones are occurring due to climate change. We therefore undertook a study to quantify the physiological abilities of cobia to withstand increases in temperature and hypoxia, including their ability to recover from exhaustive exercise. Respirometry was conducted on cobia from Chesapeake Bay to determine aerobic scope, critical oxygen saturation, ventilation volume and the time to recover from exhaustive exercise under temperature and oxygen conditions ...


Global Patterns In Marine Sediment Carbon Stocks, Trisha B. Atwood, Andrew W. Witt, Juan Mayorga, Edd Hammill, Enric Sala 2020 Utah State University

Global Patterns In Marine Sediment Carbon Stocks, Trisha B. Atwood, Andrew W. Witt, Juan Mayorga, Edd Hammill, Enric Sala

Ecology Center Publications

To develop more accurate global carbon (C) budgets and to better inform management of human activities in the ocean, we need high-resolution estimates of marine C stocks. Here we quantify global marine sedimentary C stocks at a 1-km resolution, and find that marine sediments store ∼ 3117 (3006–3209) Pg C in the top 1 m (more than twice that of terrestrial soils). Sediments in abyss/basin zones account for 75% of the global marine sediment C stock, and 52% of that stock is within the 200-mile Exclusive Economic Zones of countries. Currently, only ∼2% of sediment C stocks are located ...


Microbial Symbionts And Ecological Divergence Of Caribbean Sponges: A New Perspective On An Ancient Association, Christopher Freeman, Cole Easson, Kenan O. Matterson, Robert W. Thacker, David M. Baker, Valerie J. Paul 2020 Smithsonian Institution; College of Charleston

Microbial Symbionts And Ecological Divergence Of Caribbean Sponges: A New Perspective On An Ancient Association, Christopher Freeman, Cole Easson, Kenan O. Matterson, Robert W. Thacker, David M. Baker, Valerie J. Paul

Marine & Environmental Sciences Faculty Articles

Marine sponges host diverse communities of microbial symbionts that expand the metabolic capabilities of their host, but the abundance and structure of these communities is highly variable across sponge species. Specificity in these interactions may fuel host niche partitioning on crowded coral reefs by allowing individual sponge species to exploit unique sources of carbon and nitrogen, but this hypothesis is yet to be tested. Given the presence of high sponge biomass and the coexistence of diverse sponge species, the Caribbean Sea provides a unique system in which to investigate this hypothesis. To test for ecological divergence among sympatric Caribbean sponges ...


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 2020 The University of Texas Rio Grande Valley

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

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 ...


Antibiotic Resistance In Marine Microbial Communities Proximal To A Florida Sewage Outfall System, Dale W. Griffin, Kenneth Banks, Kurtis Gregg, Sarah Shedler, Brian Walker 2020 US Geological Survey

Antibiotic Resistance In Marine Microbial Communities Proximal To A Florida Sewage Outfall System, Dale W. Griffin, Kenneth Banks, Kurtis Gregg, Sarah Shedler, Brian Walker

Marine & Environmental Sciences Faculty Articles

Water samples were collected at several wastewater treatment plants in southeast Florida, and water and sediment samples were collected along and around one outfall pipe, as well as along several transects extending both north and south of the respective outfall outlet. Two sets of samples were collected to address potential seasonal differences, including 38 in the wet season (June 2018) and 42 in the dry season (March 2019). Samples were screened for the presence/absence of 15 select antibiotic resistance gene targets using the polymerase chain reaction. A contrast between seasons was found, with a higher frequency of detections occurring ...


Light Organ Photosensitivity In Deep-Sea Shrimp May Suggest A Novel Role In Counterillumination, Heather D. Bracken-Grissom, Danielle M. DeLeo, Megan L. Porter, Tom Iwanicki, Jamie E. Sickles, Tamara Frank 2020 Florida International University

Light Organ Photosensitivity In Deep-Sea Shrimp May Suggest A Novel Role In Counterillumination, Heather D. Bracken-Grissom, Danielle M. Deleo, Megan L. Porter, Tom Iwanicki, Jamie E. Sickles, Tamara Frank

Marine & Environmental Sciences Faculty Articles

Extraocular photoreception, the ability to detect and respond to light outside of the eye, has not been previously described in deep-sea invertebrates. Here, we investigate photosensitivity in the bioluminescent light organs (photophores) of deep-sea shrimp, an autogenic system in which the organism possesses the substrates and enzymes to produce light. Through the integration of transcriptomics, in situ hybridization and immunohistochemistry we find evidence for the expression of opsins and phototransduction genes known to play a role in light detection in most animals. Subsequent shipboard light exposure experiments showed ultrastructural changes in the photophore similar to those seen in crustacean eyes ...


Effects Of Freshwater Inflow On Nekton Assemblages And Blue Crab Populations In Southeastern Louisiana, Caleb Benjamin Taylor 2020 Louisiana State University

Effects Of Freshwater Inflow On Nekton Assemblages And Blue Crab Populations In Southeastern Louisiana, Caleb Benjamin Taylor

LSU Master's Theses

Estuaries along the northern Gulf of Mexico represent some of the most productive ecosystems in the world, providing vital habitat for many recreationally and commercially valuable species, including the blue crab, Callinectes sapidus. The mixing of fresh river and saline ocean water in coastal estuaries contribute to this productivity. Dominated by large river influences and consisting of multiple estuaries, Louisiana contributes the largest commercial fishery in the Gulf of Mexico, and remains, on average, the largest supplier of blue crabs in the nation. However, across southeast Louisiana, freshwater flow is largely dependent on Mississippi River discharge, which is highly variable ...


Reproductive Ecology Of Dragonfishes (Stomiiformes: Stomiidae) In The Gulf Of Mexico, Alex Marks, David Kerstetter, David Wyanski, Tracey Sutton 2020 Nova Southeastern University

Reproductive Ecology Of Dragonfishes (Stomiiformes: Stomiidae) In The Gulf Of Mexico, Alex Marks, David Kerstetter, David Wyanski, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

The most abundant fishes on Earth live in the meso- and bathypelagic (deep-pelagic, collectively) zones of the open ocean, where they play a key role in deep-sea food webs by mediating energy flow from surface waters to great depth. Of these fishes, the most speciose taxon is the family Stomiidae (dragonfishes). Despite being the numerically dominant predators of the global mesopelagic zone, stomiid reproductive ecology is poorly known. Research surveys rarely catch larger adults, impeding reproductive ecology studies. Between 2010 and 2011, the Offshore Nekton Sampling and Analysis Program sampled the Gulf of Mexico using a research-sized, opening/closing trawl ...


The Role Of Sexual Reproduction In The Maintenance Of Established Zostera Marina Meadows, Andrew J. Johnson, R J. Orth, Ken Moore 2020 Virginia Institute of Marine Science

The Role Of Sexual Reproduction In The Maintenance Of Established Zostera Marina Meadows, Andrew J. Johnson, R J. Orth, Ken Moore

VIMS Articles

For clonal plants, the role of sexual reproduction in the maintenance of populations can vary widely. Some species are dependent on repeated seedling recruitment. For other species, interactions between adults and seedlings within existing populations can affect seedling survival and limit sexual reproduction in existing populations. Genetic studies of seagrass populations increasingly suggest sexual reproduction is important for the resilience and stability of their populations, but as of yet little observational data support these findings. Because seagrass populations provide important ecosystem services and are threatened with increasing anthropogenic impacts, understanding their reliance on sexual reproduction is evolutionarily and ecologically important ...


Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin Pulster, Steven Murawski 2020 University of South Florida

Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin Pulster, Steven Murawski

C-IMAGE Publications

A multinational demersal longline survey was conducted on the Gulf of Mexico continental shelf over the years 2015 and 2016 to generate a Gulf-wide baseline of polycyclic aromatic hydrocarbon (PAH) concentrations in demersal fishes. Tilefish (Lopholatilus chamaeleonticeps) were sampled in all regions of the Gulf of Mexico for biometrics, bile, and liver. Tilefish liver was also obtained from surveys in the northwest Atlantic Ocean for comparison. Liver tissues (n = 305) were analyzed for PAHs and select alkylated homologs using QuEChERS extractions and gas chromatography tandem mass spectrometry. Bile samples (n = 225) were analyzed for biliary PAH metabolites using high-performance liquid ...


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 2020 University of Texas at Austin

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

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 2020 The University of Texas Rio Grande Valley

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

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 ...


Patterns In Size Distribution And Catch Of Rockfish (Sebastes Spp.) In Fisheries-Independent And Fisheries- Dependent Hook-And-Line Surveys On The Central Coast Of California, Rose Elizabeth Dodgen 2020 California Polytechnic State University, San Luis Obispo

Patterns In Size Distribution And Catch Of Rockfish (Sebastes Spp.) In Fisheries-Independent And Fisheries- Dependent Hook-And-Line Surveys On The Central Coast Of California, Rose Elizabeth Dodgen

Master's Theses

Stock assessments are statistical models which characterize the state of a population of fish. Data for stock assessment models of West Coast nearshore groundfish come largely from fisheries-dependent sources. Incorporating fisheries-independent data would increase data availability. A potential source of fisheries-independent data which is comparable to existing fisheries-dependent data is the California Collaborative Fisheries Research Program (CCFRP), a Marine Protected Area (MPA) monitoring study. We are interested in understanding the context in which CCFRP could be implemented into assessments of nearshore groundfish, specifically rockfish. To investigate this, we used management-relevant metrics to examine three questions concerning the implementation of CCFRP ...


Regional Distribution Of A Brain-Encysting Parasite Provides Insight On Parasite-Induced Host Behavioral Manipulation, Siri H. Helland-Riise, Lauren E. Nadler, Marco A. Vindas, Erik Bengston, Andrew V. Turner, Ida B. Johansen, Kelly L. Weinersmith, Ryan F. Hechinger, Øyvind Øverli 2020 Norwegian Academy of Sciences - Oslo

Regional Distribution Of A Brain-Encysting Parasite Provides Insight On Parasite-Induced Host Behavioral Manipulation, Siri H. Helland-Riise, Lauren E. Nadler, Marco A. Vindas, Erik Bengston, Andrew V. Turner, Ida B. Johansen, Kelly L. Weinersmith, Ryan F. Hechinger, Øyvind Øverli

Marine & Environmental Sciences Faculty Articles

Some parasite species alter the behavior of intermediate hosts to promote transmission to the next host in the parasite's life cycle. This is the case for Euhaplorchis californiensis, a brain-encysting trematode parasite that causes behavioral changes in the California killifish (Fundulus parvipinnis). These manipulations increase predation by the parasite's final host, piscivorous marsh birds. The mechanisms by which E. californiensis achieves this manipulation remain poorly understood. As E. californiensis cysts reside on the surface of the killifish's brain, discerning regional differences in parasite distribution could indicate mechanisms for host control. In this study, we developed a method ...


The Vertical And Horizontal Distribution Of Deep-Sea Crustaceans In The Order Euphausiacea In The Vicinity Of The Deepwater Horizon Oil Spill, Tamara Frank, Charles Douglas Fine, Eric A. Burdett, April Cook, Tracey Sutton 2020 Nova Southeastern University

The Vertical And Horizontal Distribution Of Deep-Sea Crustaceans In The Order Euphausiacea In The Vicinity Of The Deepwater Horizon Oil Spill, Tamara Frank, Charles Douglas Fine, Eric A. Burdett, April Cook, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

The vertical and horizontal distributions of Euphausiacea in the northern Gulf of Mexico (GOM), including the location of the Deepwater Horizon oil spill, were analyzed from 340 trawl samples collected between April and June 2011. This study is the first comprehensive survey of euphausiid distributions from depths deeper than 1000 m in the GOM and includes stratified sampling from five discrete depth ranges (0–200 m, 200–600 m, 600–1000 m, 1000–1200 m, and 1200–1500 m), and expands the depth ranges of 30 species. In addition, this study demonstrates significantly higher abundance and biomass of the euphausiid ...


Positive Ecological Interactions And The Success Of Seagrass Restoration, Stephanie R. Valdez, Y. Stacy Zhang, Tjisse van der Heide, Mathew A. Vanderklift, Flavia Tarquinio, R J. Orth, Brian R. Silliman 2020 William & Mary

Positive Ecological Interactions And The Success Of Seagrass Restoration, Stephanie R. Valdez, Y. Stacy Zhang, Tjisse Van Der Heide, Mathew A. Vanderklift, Flavia Tarquinio, R J. Orth, Brian R. Silliman

VIMS Articles

Seagrasses provide multiple ecosystem services including nursery habitat, improved water quality, coastal protection, and carbon sequestration. However, seagrasses are in crisis as global coverage is declining at an accelerating rate. With increased focus on ecological restoration as a conservation strategy, methods that enhance restoration success need to be explored. Decades of work in coastal plant ecosystems, including seagrasses, has shown that positive species relationships and feedbacks are critical for ecosystem stability, expansion, and recovery from disturbance. We reviewed the restoration literature on seagrasses and found few studies have tested for the beneficial effects of including positive species interactions in seagrass ...


Dispersion Overrides Environmental Variability As A Primary Driver Of The Horizontal Assemblage Structure Of The Mesopelagic Fish Family Myctophidae In The Northern Gulf Of Mexico, Rosanna Milligan, Tracey Sutton 2020 Nova Southeastern University

Dispersion Overrides Environmental Variability As A Primary Driver Of The Horizontal Assemblage Structure Of The Mesopelagic Fish Family Myctophidae In The Northern Gulf Of Mexico, Rosanna Milligan, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

The lanternfishes (Myctophidae) are a highly speciose, globally-distributed family of fishes that constitute a dominant component of the global pelagic fauna. As a vertically-migrating taxon of oceanic micronekton, myctophids play vital ecological roles in the biological carbon pump and as an important prey group for several commercially-important species. However, our knowledge of the ecology of this taxon remains incomplete, and as anthropogenic impacts continue to develop and extend into deeper waters, there is a clear need for a better understanding of its ecological role and assemblage dynamics. The aim of the present study was to examine the distribution patterns of ...


Respiration By The Opportunistic Spionid Polychaete Streblospio Gynobranchiata During Adjustment To And Recovery From Moderate Hypoxia, Alyssa D. Bennett, Chet F. Rakocinski 2020 University of Southern Mississippi

Respiration By The Opportunistic Spionid Polychaete Streblospio Gynobranchiata During Adjustment To And Recovery From Moderate Hypoxia, Alyssa D. Bennett, Chet F. Rakocinski

Faculty Publications

Understanding the capacity of estuarine organisms to acclimate to stressful conditions provides insights into how communities cope within fluctuating environments. The opportunistic spionid polychaete, Streblospio gynobranchiata Rice and Levin, 1998, regularly experiences intermittent moderate hypoxia within shallow sedimentary habitats. To better understand fine-scale adjustments by this opportunistic species to short-term moderate hypoxia, the aerobic respiration response of three size classes was examined over a 12 h period and after 24 h of exposure to moderate hypoxia (i.e., 20% air saturation) at 25 °C. In addition, the capacity to resume standard respiration was examined over a 12 h period following ...


'How To' Guide For Synthesizing Nerrs Marsh Monitoring Data, David M. Burdick 2020 Jackson Estuarine Laboratory

'How To' Guide For Synthesizing Nerrs Marsh Monitoring Data, David M. Burdick

Jackson Estuarine Laboratory

The purpose of this guide is to provide a user-friendly and informative guide on ‘How to’ synthesize salt marsh data from theNational Estuarine Research Reserve System (NERRs). In this guide, we outline and detail the steps taken from requesting/cataloguing data to summarizing these data through visual and statistical analysis. These methods can be used at a single or multiple site(s) as well as over multiple years. Though this guide is specific to NERRs and focuses on plant community data, it may also be useful for other monitoring parameters and programs to guide protocol design and analyses. Here, we ...


Digital Commons powered by bepress