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Coral Growth Under Thermal Stress And Different Levels Of Light Intensity In Acropora Aspera., Devan Y. Klein, Mary W. Barana, Leeanne A. Obilor 2015 Dominican University of California

Coral Growth Under Thermal Stress And Different Levels Of Light Intensity In Acropora Aspera., Devan Y. Klein, Mary W. Barana, Leeanne A. Obilor

Scholarly and Creative Works Conference

In this study we examined the growth rates of coral species Acropora aspera in conditions of high thermal stress which are expected to become more common because of climate change. During higher than normal temperature periods, corals can experience bleaching which is the loss of algal symbionts from their tissue. Since corals depend on these photosynthetic organisms for most of their nutrition, this loss can lead to mass mortality. However, if the period of thermal stress happens during cloudy weather, bleaching events are less severe, and thus it is possible that shading reefs could help mitigate the effects of warmer ...


Dissipation Rate Of Turbulent Kinetic Energy In Diel Vertical Migrations: Comparison Of Ansys Fluent Model To Measurements, Cayla Whitney Dean, Alexandre Soloviev, Amy Hirons, Tamara M. Frank, Ocean Data Technologies, Inc. 2015 Nova Southeastern University Oceanographic Center

Dissipation Rate Of Turbulent Kinetic Energy In Diel Vertical Migrations: Comparison Of Ansys Fluent Model To Measurements, Cayla Whitney Dean, Alexandre Soloviev, Amy Hirons, Tamara M. Frank, Ocean Data Technologies, Inc.

Oceanography Faculty Proceedings, Presentations, Speeches, Lectures

No abstract provided.


Science: How Do We Balance Costs With Value?, Adam Marsh PhD 2015 University of Delaware

Science: How Do We Balance Costs With Value?, Adam Marsh Phd

Explorer Café

No abstract provided.


From Shelf To Shelf: Assessing Historical And Contemporary Genetic Differentiation And Connectivity Across The Gulf Of Mexico In Gag, Mycteroperca Microlepis, Nathaniel Kenneth Jue, Thierry Brule, Felicia C. Coleman, Christopher C. Koenig 2015 Florida State University

From Shelf To Shelf: Assessing Historical And Contemporary Genetic Differentiation And Connectivity Across The Gulf Of Mexico In Gag, Mycteroperca Microlepis, Nathaniel Kenneth Jue, Thierry Brule, Felicia C. Coleman, Christopher C. Koenig

FSU Coastal and Marine Laboratory Publications

Describing patterns of connectivity among populations of species with widespread distributions is particularly important in understanding the ecology and evolution of marine species. In this study, we examined patterns of population differentiation, migration, and historical population dynamics using microsatellite and mitochondrial loci to test whether populations of the epinephelid fish, Gag, Mycteroperca microlepis, an important fishery species, are genetically connected across the Gulf of Mexico and if so, whether that connectivity is attributable to either contemporary or historical processes. Populations of Gag on the Campeche Bank and the West Florida Shelf show significant, but low magnitude, differentiation. Time since divergence ...


Seagrass Deterrence To Mesograzer Herbivory: Evidence From Mesocosm Experiments And Feeding Preference Trials, LaTina Steele, John F. Valentine 2015 Sacred Heart University

Seagrass Deterrence To Mesograzer Herbivory: Evidence From Mesocosm Experiments And Feeding Preference Trials, Latina Steele, John F. Valentine

Biology Faculty Publications

Two laboratory experiments documented the effects of mesograzers (i.e. the gastropod Crepidula ustulatulina and the isopod Paracerceis caudata) on phenolic acid and condensed tannin production in 2 regionally abundant seagrasses—Thalassia testudinum (turtlegrass) and Halodule wrightii (shoalgrass). Subsequent paired choice experiments tested the hypothesis that phenolic acids and condensed tannins produced by these seagrasses deter mesograzer feeding. At the scale of the shoot, grazing by gastropods and isopods led to ~40 to 50% decreases in concentrations of some phenolic acids and ~20% decreases in condensed tannins in turtlegrass leaves. At a more refined spatial scale, concentrations of 2 of ...


Ocean Food Systems, Barry A. Costa-Pierce 2015 University of New England

Ocean Food Systems, Barry A. Costa-Pierce

Marine Sciences Faculty Presentations

Presentation given during session on Food Justice, where Barton Seaver, Director of the Healthy and Sustainable Food Program in the T.H. Chan School of Public Health at Harvard, described a great nutrition and health crisis in America perpetuated by groups demarketing seafood and promoting meat in the American diet. Seaver noted that Americans consume about 167 lbs. of meat a year and only 14 lbs. of seafood, leading to connected public health and environmental crises, heart disease, and obesity.

According to presenter Barry Costa-Pierce:

Seafood systems in the USA are our most insane foods; America imports nearly every seafood ...


The Status Of Fishes In The Missouri River, Nebraska: Blue Sucker Cycleptus Elongatus, Kirk D. Steffensen, Sam Stukel, Dane A. Shuman 2015 Nebraska Game and Parks Commission

The Status Of Fishes In The Missouri River, Nebraska: Blue Sucker Cycleptus Elongatus, Kirk D. Steffensen, Sam Stukel, Dane A. Shuman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Blue Sucker Cycleptus elongatus are a large-bodied, benthic fish that are considered an indicator species for riverine health. A combination of historic commercial fishing and anthropogenic modifications to riverine habitat led to blue suckers being listed as a candidate species for the federal threatened or endangered species list in 1993. However, they were never designated a federally protected species. Locally, Blue Suckers are currently listed as a Nebraska Natural Legacy Project’s Tier 1 species but population changes and trends have not been quantified. Therefore, the objective of this paper was to evaluate the current population status of Blue Sucker ...


A Molecular Analysis Of Green Crab Diets In Casco Bay, Maine, Aidan W. Short, David B. Carlon 2015 Bowdoin College

A Molecular Analysis Of Green Crab Diets In Casco Bay, Maine, Aidan W. Short, David B. Carlon

Marine Lab Student Papers and Projects

A new wave of green crabs Carcinus maenus is sweeping through the Gulf of Maine (GOM). While first reports of green crabs in the GOM date from the early 1900s, populations in southern GOM have exploded in the last five years. In the Casco Bay region, this unusually high abundance is associated with poor commercial shellfish landings and the decline of eel grass habitat (Zostera marina). To determine the mechanistic roles green crabs play in direct and indirect ecological interactions, it is important to understand diet breadth, and how feeding preferences change in response to ecological context. Since green crabs ...


The Determination Of The Potential Risks Associated With Engineered Nanoparticles In Aquatic Environments, Karina Carey 2015 Dublin Institute of Technology

The Determination Of The Potential Risks Associated With Engineered Nanoparticles In Aquatic Environments, Karina Carey

Masters

The presented body of work is submitted for examination to the degree of Masters of Philosophy, (MPhil). The objective of the overall project is to assess the potential risks associated with engineered nanoparticles in the aquatic environment. The current study assesses the potential toxic effects of C60 and CB with a range of ecotoxicological end points. The tests employed here include cytotoxicological assessment using two end-points; the Alamar Blue Assay and the Neutral Red Assay on two fish cell lines; PLHC-1 and RTG2. Growth Inhibition of algae Pseudokirchneriella subcapitata, OECD test 201, acute toxicity test of the crustacean Thamnocephalus platyurus ...


Fishes Of The Choctawhatchee River System In Southeastern Alabama And Northcentral Florida, Thomas P. Simon, Charles C. Morris, Bernard R. Kuhajda, Carter R. Gilbert, Henry L. Bart Jr., Nelson Rios, Paul M. Stewart, Thomas P. Simon IV, Mitt Denney 2015 Indiana State University

Fishes Of The Choctawhatchee River System In Southeastern Alabama And Northcentral Florida, Thomas P. Simon, Charles C. Morris, Bernard R. Kuhajda, Carter R. Gilbert, Henry L. Bart Jr., Nelson Rios, Paul M. Stewart, Thomas P. Simon Iv, Mitt Denney

Southeastern Fishes Council Proceedings

The diversity and distribution of fish species occurring in the Choctawhatchee River drainage in southeastern Alabama and northcentral Florida were surveyed to obtain historical baseline information. Three hundred seventy-four sites were evaluated for species diversity and distribution in the drainage, including compilation of unpublished records from southeastern natural history museums. The greatest diversity at any single site was 37 species. Sixty-eight sites were represented by 15 species or more, and 26 sites were represented by a single species. The most frequently encountered species includes Gambusia holbrooki, Percina nigrofasciata, Esox americanus, Notropis texanus, Lepomis macrochirus, Cyprinella n. sp. cf venusta, Notropis ...


Ecology, Population Dynamics, And Sexual Characteristics Of Commensal Leucothoid Amphipods With The Sponge Cliona Varians In The Florida Keys (Crustacea: Amphipoda), Stephanie Lynn Andringa 2015 Nova Southeastern University Oceanographic Center

Ecology, Population Dynamics, And Sexual Characteristics Of Commensal Leucothoid Amphipods With The Sponge Cliona Varians In The Florida Keys (Crustacea: Amphipoda), Stephanie Lynn Andringa

Theses and Dissertations

Recent observations have identified a new species of leucothoid amphipod, Leucothoe “sp. F,” associated with the sponge Cliona varians. This project examined the relationship between this amphipod and its sponge host at three sites in the Florida Keys with differing hydrodynamic regimes. Ninety-eight sponge samples with a total of 2,030 amphipods were collected between December 2011 and September 2012. Leucothoe “sp. F” is currently a common species in the Florida Keys strongly associated with C. varians; its distribution strongly coincides with open tidal currents from the Gulf of Mexico. Seasonality, depth, and tidal regimes not only influence population dynamics ...


Translocation Of Acropora Cervicornis Across Geographic Regions: Investigating Species Recovery And Restoration, Bradley Cody Bliss 2015 Nova Southeastern University Oceanographic Center

Translocation Of Acropora Cervicornis Across Geographic Regions: Investigating Species Recovery And Restoration, Bradley Cody Bliss

Theses and Dissertations

This thesis is the first known study to relocate Acropora cervicornis across multiple regions of the Florida Reef Tract. Since 2006, A. cervicornis has been listed as a threatened coral species under the U.S. Endangered Species Act. In response, restoration efforts utilizing coral nursery methods have been implemented throughout the Caribbean. The primary objective of this research was to determine the response of A. cervicornis colonies to being relocated between two coral nurseries separated by approximately 150km along the Florida Reef Tract. To accomplish this, a reciprocal transport was conducted between coral fragments with known genotypes from Broward County ...


Relative Abundances Of The Recently Introduced Barnacles, Megabalanus Coccopoma And An Unidentified Species Of Megabalanus, In The Southeastern U.S., Jennifer L. Tyson 2015 Georgia Southern University

Relative Abundances Of The Recently Introduced Barnacles, Megabalanus Coccopoma And An Unidentified Species Of Megabalanus, In The Southeastern U.S., Jennifer L. Tyson

University Honors Program Theses

ABSTRACT

Megabalanus coccopoma is a prominent invasive species off the coast of Georgia. Recently, among collected samples thought to be M. coccopoma, several individuals of an unidentified species of barnacle were found. The species has been identified as a Megabalanus species, but is still unidentified to the species level. Species identification is difficult due to morphological variation, inconsistent taxonomic keys, and unknown origin. In this study I developed a method to accurately distinguish M. coccopoma from the unidentified Megabalanus sp. using sequence differences in the mitochondrial Cytochrome Oxidase I (COI) gene. This study will provide an accurate estimate of the ...


Ecopath With Ecosim Model Of The West Florida Shelf Representing 1980 For Harmful Algal Bloom Simulations, Cameron H. Ainsworth, Alisha Gray 2015 University of South Florida

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

Marine Science Faculty Publications

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 ...


Assessment Of Macroinvertebrate Communities And Heavy Metal Contamination Along The Intracoastal Waterway In Fort Lauderdale, Florida, Robert Bernhard 2014 Nova Southeastern University

Assessment Of Macroinvertebrate Communities And Heavy Metal Contamination Along The Intracoastal Waterway In Fort Lauderdale, Florida, Robert Bernhard

Theses and Dissertations

Sediments from four areas adjacent to marinas and a background site in the Intracoastal Waterway were assessed for macroinvertebrate composition and heavy metal contamination. Sediment core samples were collected in 2004 and 2005 for analyses of macroinvertebrate composition and sediment grain size. Additional sediment samples were collected in 2005 for chemical analyses of metals (Al, As, Cd, Cr, Cu, Fe, Pb, Hg, Ni and Zn). MANOVA and dendograms using Bray-Curtis similarity matrices grouped the sites into two clusters: the 3 sites closest to the New River formed one group, and the two end sites formed the other. The sites nearest ...


Inter-Nesting And Post-Nesting Movements And Behavior Of East Pacific Green Turtles (Chelonia Mydas Agassizii) From Playa Cabuyal, Guanacaste, Costa Rica, Chelsea E. Clyde-Brockway 2014 Indiana University - Purdue University Fort Wayne

Inter-Nesting And Post-Nesting Movements And Behavior Of East Pacific Green Turtles (Chelonia Mydas Agassizii) From Playa Cabuyal, Guanacaste, Costa Rica, Chelsea E. Clyde-Brockway

Master's Theses

The East Pacific green turtle (Chelonia mydas agasizzi) is a sub-population of the widely distributed green turtle (Chelonia mydas). Like all sea turtles, East Pacific green turtles have a type III survivorship curve, which is characterized by long-lived adults that have a low mortality rate and high reproductive output with a low hatchling survival rate. For this to be successful, the adults must live through multiple reproductive seasons, and in the Eastern Pacific, there is high mortality on adult East Pacific green sea turtles. The continued success of this distinct population relies on protection during key in water movements: the ...


Examining Predation As A Possible Means Of Controlling Crown-Of- Thorns Starfish (Acanthaster Planci) Outbreaks On Reefs Around Lizard Island, Australia, Amanda Chan 2014 SIT Study Abroad

Examining Predation As A Possible Means Of Controlling Crown-Of- Thorns Starfish (Acanthaster Planci) Outbreaks On Reefs Around Lizard Island, Australia, Amanda Chan

Independent Study Project (ISP) Collection

Since the world’s coral reefs are currently threatened by a variety of different natural and anthropogenic factors, research on protecting coral reefs is pivotal to protect these diverse ecosystems. However, only Indo-Pacific reefs such as the Great Barrier Reef are dying due to a corallivorous echinoderm threat known as the Crown-of-Thorns Starfish (Acanthaster planci). A. planci is a starfish which feeds on coral tissue and can quickly reduce coral cover on a reef during an outbreak. Although scientists are still unsure as to what causes these outbreaks, one suggestion is the predator-removal theory. The predator removal-theory states that major ...


Two Distinct Microbial Communities Revealed In The Sponge Cinachyrella, Marie L. Cuvelier, Emily Blake, Rebecca Mulheron, Peter J. McCarthy, Patricia Blackwelder, Rebecca Vega-Thurber, Jose V. Lopez 2014 Florida International University

Two Distinct Microbial Communities Revealed In The Sponge Cinachyrella, Marie L. Cuvelier, Emily Blake, Rebecca Mulheron, Peter J. Mccarthy, Patricia Blackwelder, Rebecca Vega-Thurber, Jose V. Lopez

Oceanography Faculty Articles

Marine sponges are vital components of benthic and coral reef ecosystems, providing shelter and nutrition for many organisms. In addition, sponges act as an essential carbon and nutrient link between the pelagic and benthic environment by filtering large quantities of seawater. Many sponge species harbor a diverse microbial community (including Archaea, Bacteria and Eukaryotes), which can constitute up to 50% of the sponge biomass. Sponges of the genus Cinachyrella are common in Caribbean and Floridian reefs and their archaeal and bacterial microbiomes were explored here using 16S rRNA gene tag pyrosequencing. Cinachyrella specimens and seawater samples were collected from the ...


Habitat And Seasonal Distribution Of The North American River Otter (Lontra Canadensis) And Vertebrate Species Assemblages In Two Protected Areas Of The Florida Everglades, Catherine Faye Hamilton 2014 Nova Southeastern University

Habitat And Seasonal Distribution Of The North American River Otter (Lontra Canadensis) And Vertebrate Species Assemblages In Two Protected Areas Of The Florida Everglades, Catherine Faye Hamilton

Theses and Dissertations

The Florida Everglades ecosystem is threatened by human development, increased pollution, freshwater scarcity, and invasive species; factors that have negatively impacted the Everglades and native species health and populations. Man-made canals and levies have redirected the natural flow of fresh water from Lake Okeechobee into the Florida Everglades, starving central and south Florida ecosystems of necessary fresh water and nutrients. Through the efforts of the Comprehensive Everglades Restoration Project (CERP), freshwater is being redirected back into central and south Florida, returning the sheet flow of water back into the Everglades. Monitoring species abundance in the Everglades is a beneficial conservational ...


Wentworth Point History Bulletin # 12, Randy Lackovic 2014 University of Maine - Main

Wentworth Point History Bulletin # 12, Randy Lackovic

Darling Marine Center Historical Documents

This history recounts the formation of the Darling Marine Center from 1963 - 1966.


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