Understanding Social Resilience In The Maine Lobster Industry, 2015 University of Maine - Main
Understanding Social Resilience In The Maine Lobster Industry, Teresa R. Johnson, Anna M. Henry
Publications
The Maine lobster Homarus americanus fishery is considered one of the most successful fisheries in the world due in part to its unique comanagement system, the conservation ethic of the harvesters, and the ability of the industry to respond to crises and solve collective-action problems. However, recent threats raise the question whether the industry will be able to respond to future threats as successfully as it has to ones in the past or whether it is now less resilient and can no longer adequately respond to threats. Through ethnographic research and oral histories with fishermen, we examined the current level …
Magnetic Island Marine Park Zones: Effects Of Fishing Restrictions On Predatory Reef Fish Populations, 2015 SIT Study Abroad
Magnetic Island Marine Park Zones: Effects Of Fishing Restrictions On Predatory Reef Fish Populations, Casey Wilson
Independent Study Project (ISP) Collection
Over the past several decades industrialized fishing practices have decimated fish stocks worldwide. Top-down trophic cascades have occurred within many marine ecosystems as top predators are removed. Numerous regions world wide are being designated as marine park “no-take” zones in order to aid in the recovery of these species and with the hope that surplus population will spillover into unprotected zones..
This study aimed to determine if there were significant differences in abundances of three major families of predatory reef fish (Serranidae, Lutjanidae, and Lethrinidae) between fringing reefs located in four bays of various zones around Magnetic Island, QLD. Data …
Land-Based Coral Nurseries: A Valuable Tool For Production And Transplantation Of Acropora Cervicornis, 2015 Nova Southeastern University
Land-Based Coral Nurseries: A Valuable Tool For Production And Transplantation Of Acropora Cervicornis, Keri L. O'Neil
HCNSO Student Theses and Dissertations
Coral nurseries have become a popular and successful method to produce coral fragments for reef-restocking and restoration projects worldwide. Numerous in-situ coral nurseries have been established and many studies have focused on the most effective way to produce coral fragments in offshore nurseries. In contrast, production of coral fragments in land-based nurseries is rarely studied despite a growing knowledge of coral husbandry and coral aquaculture. Little data exist on the success of tank-raised corals when transplanted back into reef environments. This thesis presents the results of a study designed to assess the use of land-based coral nurseries in production of …
Chemical Warfare In Narragansett Bay: Determining The Allelopathic Effects Of Ulva, 2015 University of Rhode Island
Chemical Warfare In Narragansett Bay: Determining The Allelopathic Effects Of Ulva, Fiona P. Mackechnie, Lindsay A. Green, Carol S. Thornber
Senior Honors Projects
Several species of Ulva are commonly found in the waters of Narragansett Bay, especially in eutrophic waters, where they can form fast growing blooms that can have ecological and economic consequences. The formation and release of allelopathic chemicals has been previously documented in some species of Ulva, including Ulva lactuca. Three species of blade-forming Ulva are commonly found in Narragansett Bay and coastal Rhode Island, namely, U. compressa, U. lactuca, and U. rigida. We aimed to determine if these three species of Ulva had allelopathic effects by testing their impacts on the growth of other macroalgae. Cystoclonium purpureum …
Science: How Do We Balance Costs With Value?, 2015 University of Delaware
Science: How Do We Balance Costs With Value?, Adam Marsh Phd
Explorer Café
No abstract provided.
Distribution And Identification Of Fish Eggs In An Internal Wave Transport Mechanism, 2015 University of San Diego
Distribution And Identification Of Fish Eggs In An Internal Wave Transport Mechanism, Claire Kuelbs
Undergraduate Honors Theses
Internal waves have been proven to transport invertebrate larvae onshore, but there has been little indication on whether internal waves transport fish eggs. Fish eggs are typically buoyant and are often found in neustonic samples, and internal waves often cause fronts that transport oils and other light particles. This research aims to determine whether there are patterns to the distribution of fish eggs. One possibility is that offshore fish eggs can be transported onshore, to nearshore nursery habitats. Before 2003, when genetic barcoding was proposed as an identification mechanism, fish eggs could only be identified visually, using color, size, and …
Fish Use Of Largely Unexplored Sub-Tidal Habitats In The Hinchinbrook Channel Estuary, Queensland, 2015 SIT Study Abroad
Fish Use Of Largely Unexplored Sub-Tidal Habitats In The Hinchinbrook Channel Estuary, Queensland, Alexandra Parisien
Independent Study Project (ISP) Collection
This study examines the use of sub-tidal open-bottom, rocky, and seagreass habitats by the Siganus genus (herbivores), Gerres genus (benthivores), and planktivores in the Hinchinbrook Channel Estuary in Queensland, Australia. The Hinchinbrook Channel Estuary, a tropical estuary cutting between Hinchinbrook Island and the Australian mainland, is surrounded primarily by mangroves. Its sub-tidal habitats are largely unexplored due to factors such as low visibility and the presence of estuarine crocodiles. In this study, I reviewed 699 underwater videos collected by James Cook University PhD candidate Michael Bradley in order to analyze feeding and movement behavior of pre-identified fish.
The results of …
Kinematics Of Terrestrial Locomotion In Harbor Seals And Gray Seals: Importance Of Spinal Flexion By Amphibious Phocids, 2015 West Chester University of Pennsylvania
Kinematics Of Terrestrial Locomotion In Harbor Seals And Gray Seals: Importance Of Spinal Flexion By Amphibious Phocids, Jennifer N. Garrett, Frank E. Fish
Biology Faculty Publications
No abstract provided.
Estimation Of Shape Of The Sea Lion For Hydrodynamic Analysis. Response To 'Cambered Profile Of A California Sea Lion's Body', 2015 West Chester University of Pennsylvania
Estimation Of Shape Of The Sea Lion For Hydrodynamic Analysis. Response To 'Cambered Profile Of A California Sea Lion's Body', Frank E. Fish
Biology Faculty Publications
No abstract provided.
The Pelagic Artisanal Fishing Of Mangapwani, Northern Unguja, 2015 SIT Study Abroad
The Pelagic Artisanal Fishing Of Mangapwani, Northern Unguja, Shavonne Stanek
Independent Study Project (ISP) Collection
A total of 99 interviews were conducted. Over a period of 28 days from April 5- May 2, 2015, a total of 75 interviews were conducted with 72 fishermen, 2 drying processors and 1 Bwana Diko. During a 5 day preliminary period from March 12-16, 2015, a total of 24 interviews were conducted with 7 fishermen and 14 drying processors. The interviews focused on their work in the local fishing industry, the amount of fish caught and dried, and their opinions on the sustainability of their industry. The interviews were conducted using a translator who relayed the responses in English …
Marine Animalia Organism Diversity And Reef Condition On Two Reef Sites At Big Creek Beach And Boca Del Drago, Bocas Del Toro, Panamá, 2015 SIT Study Abroad
Marine Animalia Organism Diversity And Reef Condition On Two Reef Sites At Big Creek Beach And Boca Del Drago, Bocas Del Toro, Panamá, Bri Tiffany
Independent Study Project (ISP) Collection
Ocean acidification, climate change, overfishing, and coastal development are endangering coral reefs across the globe. In Bocas del Toro, Panamá, coral reefs are especially threatened by the rapid growth in tourism and the subsequent anthropogenic effects caused by an increased human presence. To evaluate reef condition in this area, a study comparing percent coverage of live and dead coral as well as the diversity of marine Animalia organisms was conducted at one reef site in Big Creek beach and one reef site in Boca del Drago, Isla Colón, Bocas del Toro. It was predicted that dead coral cover would be …
Evaluation Of Endocrine Disrupting Chemicals In The Florida Coastal Pelagic Fish Complex Following The Deepwater Horizon Oil Spill Event, 2015 Nova Southeastern University
Evaluation Of Endocrine Disrupting Chemicals In The Florida Coastal Pelagic Fish Complex Following The Deepwater Horizon Oil Spill Event, Rachel Hickey
HCNSO Student Theses and Dissertations
Following the BP Deepwater Horizon oil spill event, there was a critical need to assess the effects of the oil and dispersant chemicals on the coastal pelagic fish complex in the Gulf of Mexico and the Florida Straits. The objective of this study was to determine if spilled crude oil and dispersant chemicals have posed an ecological risk to the coastal pelagic fish complex through the detection of vitellogenesis. Crude oil containing polycyclic aromatic hydrocarbons (PAHs), dispersant chemicals and other estrogen-mimicking compounds are suspected to induce vitellogenin production in male and immature female fish, normally only produced by sexually mature …
Histology And Ultrastructure Of Montastraea Cavernosa And Porites Astreiodes During Regeneration And Recruitment: Anthropogenic Stressors And Transplant Success, 2015 Nova Southeastern University
Histology And Ultrastructure Of Montastraea Cavernosa And Porites Astreiodes During Regeneration And Recruitment: Anthropogenic Stressors And Transplant Success, Dorothy-Ellen A. Renegar
HCNSO Student Theses and Dissertations
Corals combine photosynthesis and calcification in an intricate and delicately balanced relationship to form large biomineralized structures that are dominant features of tropical coastlines worldwide. Coral reefs have great scientific and economic importance but have recently experienced widespread decline attributed to increasing anthropogenic pressure on reef systems. Physical damage events, such as ship groundings, when coupled with existing nutrient stress and changing global climate present a poor outlook for successful natural recovery of reef communities. The main goal of the proposed research is to better understand how environmental factors, both local and global, affect the coral holobiont and influence overall …
Seasonal Warm-Water Refuge And Sanctuary Usage By The Florida Manatee (Trichechus Manatus Latirostris) In Kings Bay, Citrus County, Florida, 2015 Nova Southeastern University
Seasonal Warm-Water Refuge And Sanctuary Usage By The Florida Manatee (Trichechus Manatus Latirostris) In Kings Bay, Citrus County, Florida, Danielle C. Sattelberger
HCNSO Student Theses and Dissertations
The largest Florida manatee (Trichechus manatus latirostris) aggregation at a natural warm-water refuge occurs in Kings Bay, Crystal River, FL. Over the last 32 years, the U.S. Fish and Wildlife Service and the State of Florida have created a network of manatee protection areas within Kings Bay including a year-round refuge designation and seven Federal manatee sanctuaries during the winter manatee season (November 15 – March 31). Aerial survey data collected between 1983 and 2012 was used to examine the seasonal change in manatee distribution within Kings Bay in order to assess the effectiveness of current sanctuary sizes …
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, 2015 SIT Study Abroad
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, Emily Jankowski
Independent Study Project (ISP) Collection
Due to their extreme variations in condition over the course of a day, intertidal zones are challenging environments. Organisms that live there must be prepared to cope with both exposure and submersion, not to mention the temperature variations that accompany these conditions. The differing tolerances and adaptations of various organisms to these conditions generally cause patterns of vertical zonation to occur in the intertidal zone, especially when the shore is steep and rocky. Understanding the ecology of shore environments is important to future conservation and management efforts. This study was conducted on a beach in Mangapwani, Zanzibar at at 6˚ …
The Effect Of Changes In Ph On The Production And Respiration Rates Of Native Tape Grass, Vallisneria Americana, 2015 Rappahannock Community College
The Effect Of Changes In Ph On The Production And Respiration Rates Of Native Tape Grass, Vallisneria Americana, Adam Parker
Student Writing
In the past century, the world has seen an increase in the amount of carbon dioxide (CO2) in the atmosphere. The rise in CO2 can put stress on aquatic ecosystems due to ocean acidification, an overall decrease in the pH of the ocean’s waters. Freshwater ecosystems, already stressed by pollution and recent increases in the number of invasive species are also showing signs of acidification due to the increase in CO2. The effect of the rise in acidity is known to be harmful to calcifying organisms, but the effect on freshwater submerged aquatic vegetation (SAV) is not well studied. The …
The Effect Of Temperature On Paralytic Shellfish Toxin Uptake By Blue Mussels (Mytilus Edulis) And Sea Scallops (Placopecten Magellanicus), 2015 University of Maine - Main
The Effect Of Temperature On Paralytic Shellfish Toxin Uptake By Blue Mussels (Mytilus Edulis) And Sea Scallops (Placopecten Magellanicus), Mackenzie Mazur
Honors College
Increasing amounts of paralytic shellfish toxins (PSTs) threaten human health, the economy, and marine ecosystems because of paralytic shellfish poisoning (PSP). Therefore, studies about shellfish toxicity can have significant public health and social impact. In this study, the effect of water temperature on PST uptake in blue mussels (Mytilus edulis) and sea scallops (Placopecten magellanicus) was tested. Mytilus edulis and P. magellanicus were acclimated to either 10°C or 15°C for two weeks before being fed with the toxic alga, Alexandrium fundyense, at a concentration of 100 cells/mL and a non-toxic algae source (Shellfish Diet) at a concentration of 2.4 X …
The Influence Of Spines On Predation Of Devonian Brachiopods, 2015 University or Minnesota, Morris
The Influence Of Spines On Predation Of Devonian Brachiopods, Broc S. Kokesh
Undergraduate Research Symposium 2015
Brachiopods are small animals that live on the seafloor and are prominent in the Devonian fossil record from 420 to 360 million years ago. An interesting feature of some species is that large spines develop on their exterior surfaces and are thought to have evolved for defense against predators. Fortunately, this hypothesis can be tested by observing wound marks indicative of attempted predation as described by Zhang et al. (2011). In this study, I examined wound marks on fossils of the spiny brachiopod Atrypa rockfordensis and the spineless Atrypa devoniana. Results show that A. rockfordensis only experienced attacks at …
Seagrass Deterrence To Mesograzer Herbivory: Evidence From Mesocosm Experiments And Feeding Preference Trials, 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 these compounds …
Estimating The Effects Of Seawater Intrusion On An Estuarine Nitrogen Cycle By Comparative Network Analysis, 2015 Virginia Institute of Marine Science
Estimating The Effects Of Seawater Intrusion On An Estuarine Nitrogen Cycle By Comparative Network Analysis, David E. Hines, Jessica A. Lisa, Bk Song, Craig R. Tobias, Stuart R. Borrett
VIMS Articles
Nitrogen (N) removal from estuaries is driven in part by sedimentary microbial processes. The processes of denitrification and anaerobic ammonium oxidation (anammox) remove N from estuaries by producing N2 gas, and each can be coupled to N recycling pathways such as nitrification and dissimilatory nitrate reduction to ammonium (DNRA). Environmental conditions such as seawater intrusion influence sedimentary estuarine N cycling processes. This study investigated the potential effects of seawater intrusion on N cycling processes and their couplings through a comparative modeling approach. We applied environ analysis, a form of ecosystem network analysis, to 2 N cycling mass-balance network models …