Digital Commons Network^™

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 (10-m …

Exploring Parenting Influences: Married African American Fathers’ Perspectives, Felicia L. Murray, Shann Hwa Hwang

The Qualitative Report

This qualitative study sought to understand married, resident African American fathers’ perceptions about parenting influences. Specifically, this study explored fathers’ perceptions about sources and/or experiences that informed their approaches and attitudes about parenting. Social learning theory, the modeling and compensation hypothesis, as well as literature on the intergenerational transmission of parenting served as theoretical frameworks. Eight fathers participated in semi-structured interviews. One main theme and four subthemes emerged from the data. Findings indicated that a number of influences including but not limited to experiences from their family of origin informed current parenting approaches and attitudes.

Researcher Discussion: Gulf War Illness Research: Where Are We Now? Where Are We Going?, Nancy Klimas, Kimberly Sullivan

SHIELD Conference

No abstract provided.

I Am Still On My Way: The Influence Of Motivation In Transforming Identities, Zijia Cheng

The Qualitative Report

This article explores how my identities were transformed from a piano learner and player to a piano teacher and researcher by employing motivation. My musical background, piano learning experience, understanding and knowledge have formed me as a piano learner and player. My musical identities provide motivation which influences the establishment of my new identities. To investigate my background, an autoethnographical method was employed. Through this qualitative study, I found that my identity, interests and choices of research methodologies in music education are influenced by my understandings and beliefs gained from my own learning experience.

“Before Alone Or (Well) Accompanied”? The Use Of Projective Marketing Techniques, Alyce C. Campos, Thaísa B. P. Do Nascimento, Frederico H. De Oliveira, Luiz Henrique De B. Vilas Boas, Daniel C. De Rezende

The Qualitative Report

Projective techniques, widely used in marketing research, encourage interviewees to talk about other people so that researchers can discover deep feelings and circumvent psychological prejudices. The present study analyzes empirical publications that involve the use of projective techniques in marketing. For this, two specific objectives were defined: to analyze if the publications are using only projective techniques or are being combined with other techniques and to identify which types of projective techniques are being used. The results were divided into bibliographic analysis and semantic analysis. In the first one, the evolution of the publications per year and the periodicals that …

Navigating Healthcare Science Student Learning And Engagement Through Implementation Of A Virtual Classroom, Santanu De, Gesulla Cavanaugh

Biology Faculty Proceedings, Presentations, Speeches, Lectures

Objective. This study explored whether virtual classrooms can be utilized to facilitate student learning and engagement. Background. University students and their learning approaches undergo constant changes, mainly due to advances in technology. Therefore, student expectations are continuously shifting. Although technology allows easier access to learning material, students still depend on a structured learning environment facilitated by an instructor to receive and process the correct information. Methods. A virtual classroom developed and housed in Second Life was used to deliver a week-long course on health promotion. Thirty students from different healthcare science programs participated in the study. After …

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 assemblage from slope vs. offshore …

Urine As A High-Quality Source Of Host Genomic Dna From Wild Populations, Andrew T. Ozga, Timothy H. Webster, Ian C. Gilby, Melissa A. Wilson, Rebecca Nockerts, Michael L. Wilson, Anne Pusey, Yingying Li, Beatrice H. Hahn, Anne C. Stone

Biology Faculty Articles

The ability to generate genomic data from wild animal populations has the potential to give unprecedented insight into the population history and dynamics of species in their natural habitats. However, in the case of many species, it is impossible legally, ethically, or logistically to obtain tissues samples of high-quality necessary for genomic analyses. In this study we evaluate the success of multiple sources of genetic material (feces, urine, dentin, and dental calculus) and several capture methods (shotgun, whole-genome, exome) in generating genome-scale data in wild eastern chimpanzees (Pan troglodytes schweinfurthii) from Gombe National Park, Tanzania. We found that …

Oceanographic Structure And Light Levels Drive Patterns Of Sound Scattering Layers In A Low-Latitude Oceanic System, Kevin M. Boswell, Marta D'Elia, Matthew Johnston, John A. Mohan, Joseph D. Warren, R. J. David Wells, Tracey Sutton

Biology Faculty Articles

Several factors have been reported to structure the spatial and temporal patterns of sound scattering layers, including temperature, oxygen, salinity, light, and physical oceanographic conditions. In this study, we examined the spatiotemporal variability of acoustically detected sound scattering layers in the northern Gulf of Mexico to investigate the drivers of this variability, including mesoscale oceanographic features [e.g., Loop Current-origin water (LCOW), frontal boundaries, and Gulf Common Water]. Results indicate correlations in the vertical position and acoustic backscatter intensity of sound scattering layers with oceanographic conditions and light intensity. LCOW regions displayed consistent decreases, by a factor of two and four, …

The Current Volume 30 : Issue 21, Nova Southeastern University

Student Newspapers

No abstract provided.

The Interplay Of The Oral-Gut Microbiome With Chronic Inflammation In Rheumatoid Arthritis And Crohn's Disease, Anuradha Rampersaud

Mako: NSU Undergraduate Student Journal

Abstract

Rheumatoid Arthritis (RA) and Crohn’s Disease (CD) are both chronic inflammatory diseases that share developmental and treatment similarities. RA’s symptoms include swelling, stiffness, and pain in synovial joints, corresponding with bone and cartilage destruction. CD’s symptoms include abdominal pain, bowel obstruction, bloating, diarrhea, and fever. The purpose of this literature review was to investigate the links between these two diseases and propose future treatment and prevention targets. Current treatment for RA and CD aims to suppress inflammation by targeting its mediators. However, this review noted that there should be greater focus on resolving inflammation. Both diseases are characterized by …

Ace2/Ang1-7 Mas Axis: The Counter-Regulator Of The Classical Renin Angiotensin System, Widelyne Dorsainval

Mako: NSU Undergraduate Student Journal

To maintain homeostasis, the renin-angiotensin system (RAS) works to regulate the cardiovascular, renal, respiratory, and neurological systems of the body. However, there is evidence that abundant amounts of certain components of the RAS have detrimental effects and enhance disease. Recent studies have proved that there is a lesser known RAS which acts to counterbalance the classical RAS. To better understand their interaction, the effects of the alternate RAS against the classical RAS in the homeostatic systems of the body are researched and analyzed. The classical pathway employs these components: angiotensin converting enzyme (ACE), angiotensin II (AngII), and angiotensin II type …

The Method Of Empathy-Based Stories As A Tool For Research And Teaching, Elina Särkelä, Juha Suoranta

The Qualitative Report

In this article we describe a qualitative research method, the “Method of Empathy-Based Stories” (MEBS) and ponder its value in classroom teaching. Our research question is as follows: What is MEBS and what are its possible uses in research and teaching? We gathered empathy-based stories written by students (N = 15) and analysed them with thematic analysis. The dominating themes in writings were the threat of climate change and various coping strategies. MEBS allowed students to describe their ways of thinking and acting, and to take part in the discussion. In general, the use of MEBS can generate hypotheses and …

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 …

The Current Volume 30 : Issue 20, Nova Southeastern University

Student Newspapers

No abstract provided.

Comparative Population Genomics And Biophysical Modeling Of Shrimp Migration In The Gulf Of Mexico Reveals Current-Mediated Connectivity, Laura Timm, Lys M. Isma, Matthew Johnston, Heather D. Bracken-Grissom

Biology Faculty Articles

The Gulf of Mexico experiences frequent perturbations, both natural and anthropogenic. To better understand the impacts of these events, we must inventory natural variability within the ecosystem, communities, species, and populations, and contextualize these findings in relation to physical features. Here, we present an integrated study of comparative population genomics and biophysical oceanography. Targeting three species of mesopelagic shrimp common to the Gulf of Mexico midwater (Acanthephyra purpurea, Systellaspis debilis, and Robustosergia robusta), we analyzed genetic diversity and population connectivity as proxies for species health and resilience, respectively. We also simulated a range of vertical migratory behaviors …

Comparative Population Genomics And Biophysical Modeling Of Shrimp Migration In The Gulf Of Mexico Reveals Current-Mediated Connectivity, Laura Timm, Lys M. Isma, Matthew Johnston, Heather D. Bracken-Grissom

Biology Faculty Articles

The Gulf of Mexico experiences frequent perturbations, both natural and anthropogenic. To better understand the impacts of these events, we must inventory natural variability within the ecosystem, communities, species, and populations, and contextualize these findings in relation to physical features. Here, we present an integrated study of comparative population genomics and biophysical oceanography. Targeting three species of mesopelagic shrimp common to the Gulf of Mexico midwater (Acanthephyra purpurea, Systellaspis debilis, and Robustosergia robusta), we analyzed genetic diversity and population connectivity as proxies for species health and resilience, respectively. We also simulated a range of vertical migratory behaviors …

Urgent Need For Coral Demography In A World Where Corals Are Disappearing, Peter J. Edmunds, Bernhard Riegl

Marine & Environmental Sciences Faculty Articles

Coral reefs have long attracted attention because of their biological and economic importance, but this interest now has turned to examining the possibility of functional extirpation. Widespread declines in coral abundances have fueled the shift in motivation for studying reefs and catalyzed the proliferation of monitoring to record the changes underway. Despite appreciation of monitoring as a scientific endeavor, its primary use has continued to be the quantification of cover of coral, macroalgae, and a few other space holders. The limitations of coral cover in evaluating the consequences of changing coral abundance were highlighted decades ago. Yet neglect of the …

The Current Volume 30 : Issue 19, Nova Southeastern University

Student Newspapers

No abstract provided.

Spatio-Temporal Genetic Tagging Of A Cosmopolitan Planktivorous Shark Provides Insight To Gene Flow, Temporal Variation And Site-Specific Re-Encounters, Lilian Lieber, Graham Hall, Jackie Hall, Simon Berrow, Emmett Johnston, Chrysoula Gubili, Jane Sarginson, Malcolm Francis, Clinton Duffy, Sabine P. Wintner, Philip D. Doherty, Brendan J. Godley, Lucy A. Hawkes, Matthew J. Witt, Suzanne M. Henderson, Eleonora De Sabata, Mahmood S. Shivji, Deborah A. Dawson, David W. Sims, Catherine S. Jones, Leslie R. Noble

Biology Faculty Articles

Migratory movements in response to seasonal resources often influence population structure and dynamics. Yet in mobile marine predators, population genetic consequences of such repetitious behaviour remain inaccessible without comprehensive sampling strategies. Temporal genetic sampling of seasonally recurring aggregations of planktivorous basking sharks, Cetorhinus maximus, in the Northeast Atlantic (NEA) affords an opportunity to resolve individual re-encounters at key sites with population connectivity and patterns of relatedness. Genetic tagging (19 microsatellites) revealed 18% of re-sampled individuals in the NEA demonstrated inter/multi-annual site-specific re-encounters. High genetic connectivity and migration between aggregation sites indicate the Irish Sea as an important movement corridor, …

The Current Volume 30 : Issue 18, Nova Southeastern University

Student Newspapers

No abstract provided.

Host Population Genetics And Biogeography Structure The Microbiome Of The Sponge Cliona Delitrix, Cole Easson, Andia Chaves-Fonnegra, Robert W. Thacker, Jose Lopez

Biology Faculty Articles

Sponges occur across diverse marine biomes and host internal microbial communities that can provide critical ecological functions. While strong patterns of host specificity have been observed consistently in sponge microbiomes, the precise ecological relationships between hosts and their symbiotic microbial communities remain to be fully delineated. In the current study, we investigate the relative roles of host population genetics and biogeography in structuring the microbial communities hosted by the excavating sponge Cliona delitrix. A total of 53 samples, previously used to demarcate the population genetic structure of C. delitrix, were selected from two locations in the Caribbean Sea and …

A Revised Holocene Coral Sea-Level Database From The Florida Reef Tract, Usa, Anastasios Stathakopoulos, Bernhard Riegl, Lauren T. Toth

Marine & Environmental Sciences Faculty Articles

The coral reefs and mangrove habitats of the south Florida region have long been used in sea-level studies for the western Atlantic because of their broad geographic extent and composition of sea-level tracking biota. The data from this region have been used to support several very different Holocene sea-level reconstructions (SLRs) over the years. However, many of these SLRs did not incorporate all available coral-based data, in part because detailed characterizations necessary for inclusion into sea-level databases were lacking. Here, we present an updated database comprised of 303 coral samples from published sources that we extensively characterized for the first …

Analysis Of Surfactant-Associated Bacteria In The Sea Surface Microlayer Using Deoxyribonucleic Acid Sequencing And Synthetic Aperture Radar, Georgia Parks, Cayla W. Dean, John Alexander Kluge, Alexander Soloviev, Mahmood S. Shivji, Aurelien Tartar, Kathryn L. Howe, Susanne Lehner, Egbert Schwarz, Hui Shen, William Perrie, Paul Schuler

Marine & Environmental Sciences Faculty Articles

The sea surface microlayer (SML) is the upper 1 mm of the ocean, where Earth’s biogeochemical processes occur between the ocean and atmosphere. It is physicochemically distinct from the water below and highly variable in space and time due to changing physical conditions. Some microorganisms influence the composition of the SML by producing surfactants for biological functions that accumulate on the surface, decrease surface tension, and create slicks. Slicks can be visible to the eye and in synthetic aperture radar (SAR) satellite imagery. This study focuses on surfactant-associated bacteria in the near-surface layer and their role in slick formation where …

How To Be Unfaithful To Eurocentrism: A Spanglish Decolonial Critique To Knowledge Gentrification, Captivity And Storycide In Qualitative Research, Marcela Polanco, Nathan D. Hanson, Camila Hernandez, Tirzah Le Feber, Sonia Medina, Stephanie Old Bucher, Eva I. Rivera, Ione Rodriguez, Elizabeth Vela, Brandi Velasco, Jackolyn Le Feber

The Qualitative Report

From a position of academic activism, we critique the longstanding dominance del production of knowledge that solely implicates fidelity to Eurocentric methodological technologies en qualitative research. Influenced by an Andean decolonial perspective, en Spanglish we problematize métodos of analysis as the dominant research practice, whereby las stories o relatos result en su appropriation, captivity and gentrification, first by researchers’ authorship and later by the publishing industry copyrights. We highlight the racializing and capitalist colonial/modern Eurocentric agenda del current market of knowledge production that displaces to la periphery all knowledge o relatos that do not subscribe to Euro-US American methodological parameters …

The Current Volume 30 : Issue 16, Nova Southeastern University

Student Newspapers

No abstract provided.

Dancing My Way Through Life; Embodying Cultural Diversity Across Time And Space: An Autoethnography, Nan Zhang, Maria Gindidis, Jane Southcott

The Qualitative Report

In this paper, I research how my background, in different times and within diverse spaces, has led me to exploring and working with specific Content and Language Integrated Learning (CLIL) programs. I am forever motivated to engage students learning second languages by providing them with possibilities to find out who they are, to know other ways of being and meet diverse peoples, to maintain languages more effectively and maintain culture(s) more authentically. I employ autoethnography as a method to discover and uncover my personal and interpersonal experiences through the lens of my dance related journeys. The method of Interpretative Phenomenological …

Comparison Of Two Methods For Measuring Sea Surface Temperature When Surfing, Robert J. W. Brewin, Tyler Cyronak, Philip Bresnahan, Andreas J. Andersson, Jon Richard, Katherine Hammond, Oliver Billson, Lee De Mora, Thomas Jackson, Dan Smale, Giorgio Dall'olmo

Marine & Environmental Sciences Faculty Articles

Nearshore coastal waters are among the most dynamic regions on the planet and difficult to sample from conventional oceanographic platforms. It has been suggested that environmental sampling of the nearshore could be improved by mobilising vast numbers of citizens who partake in marine recreational sports, like surfing. In this paper, we compared two approaches for measuring sea surface temperature (SST), an Essential Climate Variable, when surfing. One technique involved attaching a commercially-available miniature temperature logger (Onset UTBI-001 TidbiT v2) to the leash of the surfboard (tether connecting surfer and surfboard) and the second, attaching a surfboard fin (Smartfin) that contained …

The Current Volume 30 : Issue 15, Nova Southeastern University

Student Newspapers

No abstract provided.

A Review Of The Phenomenological Heart Of Teaching And Learning: Theory, Research, And Practice In Higher Education, Jason D. Dehart

The Qualitative Report

This review of The Phenomenological Heart of Teaching and Learning: Theory, Research, and Practice in Higher Education focuses on the organization, strengths, and weaknesses of a newly-published qualitative research text that also serves as a guide for teachers who wish to improve their practice. The case study nature of the text is explored, as well as the contributions of the text’s authors. The book is most notable as a text that draws on the rich history of Merleau-Ponty and seeks to consider classroom instruction in higher education in light of phenomenological tenets.