Coral Growth Under Thermal Stress And Different Levels Of Light Intensity In Acropora Aspera., 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, 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.
A Molecular Analysis Of Green Crab Diets In Casco Bay, Maine, 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, 2015 Dublin Institute of Technology
The Determination Of The Potential Risks Associated With Engineered Nanoparticles In Aquatic Environments, Karina Carey
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, 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), 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, 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, 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, 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
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, 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, 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, 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, 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), 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, 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, 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, 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, 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, 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, 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 ...