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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seventy-four sites were evaluated for species diversity and distribution in the drainage, including compilation of unpublished records from southeastern natural history museums.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 ...


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 ...


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.


Wentworth Point History Bulletin # 10, Randy Lackovic 2014 University of Maine - Main

Wentworth Point History Bulletin # 10, Randy Lackovic

Darling Marine Center Historical Documents

This is a history of the marine and freshwater sciences activity at the University of Maine from 1865 - 1965.


The Status Of Fishes In The Missouri River, Nebraska: Lake Sturgeon (Acipenser Fulvescens), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman 2014 Nebraska Game and Parks Commission

The Status Of Fishes In The Missouri River, Nebraska: Lake Sturgeon (Acipenser Fulvescens), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Lake Sturgeon (Acipenser fulvescens) occurrences in the Missouri River along Nebraska’s eastern border are historically sporadic and rare. Presently, the wild Lake Sturgeon population in this river reach may be extirpated. A Recovery Program initiated by the Missouri Department of Conservation (MDC) has stocked almost 150,000 hatchery-reared Lake Sturgeon into the lower Missouri River at several sites in Missouri. As a result, the number of Lake Sturgeon collected has increased. Since monitoring began in 2003, no Lake Sturgeon have been collected above Gavins Point Dam while 40 fish were collected downstream of Gavins Point Dam. The majority of ...


The Centennial Of The Smith-Lever Act And Aquaculture Extension, Michael A. Rice 2014 University of Rhode Island

The Centennial Of The Smith-Lever Act And Aquaculture Extension, Michael A. Rice

Michael A Rice

May 8, 2014 marked the centennial of the landmark Smith-Lever Act in the United States that created the Cooperative Extension service at Land Grant Universities nationwide. Major contributors to the 1914 Act were Seaman A. Knapp and Kenyon L. Butterfield. A half century later the Sea Grant College Program was proposed by Athelstan F. Spilhaus expanding Extension programming to the sea. Together these two programs have been a major force in promoting the growth of the aquaculture industry in America.


The Shellfish Corner -- Shellfish And The Problem Of Ocean Acidification, Michael A. Rice 2014 University of Rhode Island

The Shellfish Corner -- Shellfish And The Problem Of Ocean Acidification, Michael A. Rice

Michael A Rice

The acidification of the world's oceans due to increasing atmospheric carbon dioxide concentrations is creating a problem in the dissolution of larval shells of mollusks and creating problems for shellfish hatcheries. Hatcheries can mitigate the problem by treating incoming seawater with alkaline sodium carbonate, but there is evidence that acidic sediments in some locations are a source of considerable post-settlement loss of newly set juveniles.


From Progesterone In Biopsies To Estimates Of Pregnancy Rates: Large Scale Reproductive Patterns Of Two Sympatric Species Of Common Dolphin, Delphinus Spp. Off California, Usa And Baja, Mexico, Nicholas Marc Kellar, Marisa L. Trego, Susan J. Chivers, Fredrick I. Archer, Wayne L. Perryman 2014 Protected Resources Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration

From Progesterone In Biopsies To Estimates Of Pregnancy Rates: Large Scale Reproductive Patterns Of Two Sympatric Species Of Common Dolphin, Delphinus Spp. Off California, Usa And Baja, Mexico, Nicholas Marc Kellar, Marisa L. Trego, Susan J. Chivers, Fredrick I. Archer, Wayne L. Perryman

Bulletin of the Southern California Academy of Sciences

Blubber progesterone levels were measured in biopsy samples and used to predict the pregnancy status of 507 female common dolphins (204 long-beaked common dolphins, Delphinus capensis, and 303 short-beaked common dolphins, D. delphis). Samples were collected in the coastal waters of the eastern North Pacific between central California, USA and the southern end of Baja California, Mexico. The percentage of females pregnant was similar between the two species: 22.1% (n = 45) of D. capensis and 28.1% (n = 85) of D. delphis. For both species we found strong geographic patterns in pregnancy, suggesting that some areas were more conducive ...


Microalgae In Eastern Pacific White Shrimp Hatcheries: A Review On Roles And Culture Environments, Wa Iba, Michael A. Rice, Gary H. Wikfors 2014 University of Halu Oleo

Microalgae In Eastern Pacific White Shrimp Hatcheries: A Review On Roles And Culture Environments, Wa Iba, Michael A. Rice, Gary H. Wikfors

Michael A Rice

Demand for shrimp, particularly the eastern Pacific white shrimp Litopenaeus vannamei (Boone 1931), will continue to increase in Asian and worldwide seafood markets. Providing shrimp farms with a robust, healthy, and continuous supply of shrimp seed is a challenge that must be addressed to meet the demand. Shrimp feed during hatchery production still relies on live microalgae, despite many years of effort to find suitable full or partial-replacement diet alternatives. Successful mass production of microalgae for hatchery feed to obtain good quality shrimp seedstock depends on a number of environmental factors that determine the growth and nutritional values of various ...


Estimating Migration Rates Between Populations Of Zostera Marina In The San Francisco Bay, Elizabeth S. Gutierrez 2014 University of California, Berkeley

Estimating Migration Rates Between Populations Of Zostera Marina In The San Francisco Bay, Elizabeth S. Gutierrez

STAR (STEM Teacher and Researcher) Program Posters

Eelgrass (Zostera marina) is a highly clonal marine angiosperm that can also reproduce sexually through flowering and seed formation. In a previous study, Fst values from six microsatellite loci suggested that a perennial San Francisco Bay subpopulation at Point Molate (Richmond, California) was able to recover from a drastic 2006 die-off through seed recruitment from neighboring eelgrass subpopulations, changing its reproductive strategy from clonal to sexual. Although Fst measures continue to be widely used in population genetics, the assumptions under which they operate are not always appropriate given certain circumstances, such small population sizes and/or asymmetrical migration rates. Our ...


Modeling Maine’S Rockweed Harvest, Meagan Hennessey 2014 Colby College

Modeling Maine’S Rockweed Harvest, Meagan Hennessey

Journal of Environmental and Resource Economics at Colby

Currently, Maine is in a political struggle over the best way to manage the harvesting of Rockweed, or Ascophyllum nodosum. As the dominant macro algae along the state’s rocky intertidal zone it supports over 150 different species, meaning its loss could impact food web stability, protection of endangered species, and support of economically viable harvests. This work takes parameters found in the literature to create a Stella model, which is then manipulated to explore the relative impact of possible management strategies. It is found that a strictly accurate model is not possible to create given the current biological knowledge ...


Sex Ratio Assessment Of Endangered Kemp’S Ridley Sea Turtle Foraging Populations: Validation Of A Testosterone Elisa For Juvenile Sex Determination, William A. Hilton, Camryn D. Allen 2014 California State University - Stanislaus

Sex Ratio Assessment Of Endangered Kemp’S Ridley Sea Turtle Foraging Populations: Validation Of A Testosterone Elisa For Juvenile Sex Determination, William A. Hilton, Camryn D. Allen

STAR (STEM Teacher and Researcher) Program Posters

Currently all species of sea turtles are listed as threatened or endangered with extinction under the U.S. Endangered Species Act. In order to effectively construct management approaches we need as much information on various sea turtle populations as possible including demography, genetic origin, and critical habitat. One demographic piece of data that is lacking is the sex ratio of turtle populations in foraging habitats, as this information is integral in determining overall population abundance. Because secondary sex characteristics (i.e. males have longer tails) are not evident until turtles start to reach sexual maturity, the sex of juvenile turtles ...


Jellyfish Throwdown: Invasive Versus Native, Brooke Bemowski, Trisha Huynh, Lindsay J. Sullivan, Wim Kimmerer 2014 California State Universtiy, Long Beach

Jellyfish Throwdown: Invasive Versus Native, Brooke Bemowski, Trisha Huynh, Lindsay J. Sullivan, Wim Kimmerer

STAR (STEM Teacher and Researcher) Program Posters

The San Francisco Bay Estuary is home to many species of marine and wildlife that create a delicate ecological balance. Invasive jellyfish introduced to the bay though cargo shipping are believed to be competing with the endangered delta smelt for the same food source of copepods. Samples of zooplankton were taken from high and low salinity zones in the San Francisco Bay over three years in months June through February to correlate with the peak of the jellyfish lifecycle. The preserved samples are looked through and jellyfish are removed and recorded. The species of jellyfish is determined using features such ...


Salinity And Temperature Distribution Of Jellyfish In The San Francisco Estuary, Trisha Huynh, Brooke Bemowski, Lindsay Sullivan, Wim Kimmerer 2014 California Polytechnic State University - San Luis Obispo

Salinity And Temperature Distribution Of Jellyfish In The San Francisco Estuary, Trisha Huynh, Brooke Bemowski, Lindsay Sullivan, Wim Kimmerer

STAR (STEM Teacher and Researcher) Program Posters

Jellyfish are generally characterized by their jelly-like bodies and internal lining (two tissue layers). They found both in the phylum Ctenophora and the phylum Cnidaria. Ctenophores differ from cnidarians primarily due to the rows of “combs”, or cilia, which are used for transportation. Additionally, ctenophores possess sticky cells while cindarians possess stinging cells. Jellyfish depend on zooplankton (small floating aquatic animals) as a food source; as a result, they are potential competitors and predators to plankton-eating fish and may negatively impact fish populations.

As recently as 1950, jellyfish have entered the San Francisco Bay from the Mediterranean Sea (probably in ...


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