Wallin, Isa

The Monoporeia affinis population has declined drastically in the Baltic Sea since 1999. In the late 1980’s, an invasive polychaete, Marenzelleria spp., established in the Baltic Sea. This experiment aimed to investigate if M. affinis’ swimming behavior and mortality was affected by competition from Marenzelleria spp., and if so the competition was size- or densitydependent. One control series without Marenzelleria spp. and four series with different sizes and densities of Marenzelleria spp. wer...

Gilbert, Chad S

The Georges Bank (GB) scallop (Placopecten magellanicus) population is an economically valuable fishery in Canada and the US. The roles of biological factors such as larval swimming behaviour, development rates and spawning season and of demographic factors such as adult distribution and larval mortality in determining population connectivity in scallops on GB are currently unknown. In this thesis, a new particle-tracking model is developed and used to simulate larval dispersal in realistic 3D c...

Lin, Yuehua

Circulation and associated variability in the Intra-Americas Sea (IAS) are examined using observations and numerical models. Vertically integrated transport variations through the Yucatan Channel in the model are found to be related to the intrusion of the Loop Current into the Gulf of Mexico. We argue that the transport variations are part of a “compensation effect” by which transport variations through the Yucatan Channel are at least partly compensated by flow around Cuba. Numerical experimen...

Xie, Si

Spaceborne Synthetic Aperture Radar (SAR) is commonly considered a powerful sensor to detect sea ice. Unfortunately, the sea-ice types in SAR images are difficult to be interpreted due to speckle noise. SAR image denoising therefore becomes a critical step of SAR sea-ice image processing and analysis. In this study, a two-phase approach is designed and implemented for SAR sea-ice image segmentation. In the first phase, a Gamma-based bilateral filter is introduced and applied for SAR image denois...

Galvan, Tamara M.

<p> This study sought to determine what types of connections to prior experiences and knowledge were being made at two different styles of exhibits focusing on sea jellies.</p><p> Family groups, consisting of one or two adults with one or two children aged 6-11, were audio recorded and tracked as they visited a view-only or touch pool sea jelly exhibit. A short interview was given after their visit to the sea jelly exhibit. The discourse from the exhibit and survey were coded for types of lear...

Mosola, Amanda Beth

Marine geological evidence supports rapid retreat of the West Antarctic Ice Sheet in the eastern Ross Sea before the last glacial maximum. As the only accessible marine record of a major drainage outlet of the West Antarctic Ice Sheet (WAIS), this central and eastern Ross Sea dataset provides a unique opportunity to test the hypothesis of WAIS instability, assess its regulating role in eustasy, and explore the geological record of paleo-ice stream behavior. As the last vast marine-based ice shee...

Bartek, Louis Robert, III

Piston core, drill core, and high resolution seismic data from McMurdo Sound were analyzed and tied to litho- and seismic stratigraphic events in the Ross Sea. The data show that the first extensive ice sheet grounding event occurred in the Ross Sea as early as late Oligocene time. Development of the East Antarctic ice sheet, and Oligocene ice sheet grounding may have been triggered by the opening of a seaway between Antarctica and Australia during late Cretaceous/early Paleogene time. As the se...

Sneider, John Scott

The Middle to Upper Jurassic in the Viking Graben area was deposited during an overall transgression. Tectonics, eustasy, sediment supply and sediment source area control facies distribution. The Lower Toarcian to the base of the Cretaceous consists of seven major regressive-transgressive facies cycles. These regressive-transgressive (R-T) facies cycles are called second order and dominate facies distribution. Two maximum flooding surfaces bound a facies cycle which contains an unconformity inte...

BALSHAW-BIDDLE, KATHERINE M.

Over 24% of the ice surface area covering East and West Antarctica drains into the Ross Sea and supplies the Ross Ice Shelf. The dominant proportion of this ice originates from the West Antarctic subcontinent. Thus, any change in the glacial regime in West Antarctica, and to a lesser extent East Antarctica, may well be preserved in the thick sequence of sediments underlying the Ross Sea. The Oligocene through Pliocene portion of this glacial marine section is studied using depositional models de...

Polo, Camilo

No description available.

Hayne, Kurtis

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Der, Alexandra Jacqueline

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Castro de la Guardia, Laura

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Singh, Rabindra

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Tecchio, Samuele

Tesi realitzada a l'Institut de Ciències del Mar (ICM - CSIC) / The Mediterranean Sea can be considered an excellent natural laboratory for benthic ecologists, due to its peculiar environmental conditions, its broad-scale gradients, and its deep-sea fauna. Primary production levels in the Mediterranean follow a longitudinal gradient, decreasing from west to east. The present thesis focused on the fine-mud benthos habitat of the Mediterranean Sea, on its bathyal and abyssal zones, and the compart...

Javid, Sanaz

39 thin sections and petrophysical log data from the Skalle well in the Hammerfest Basin, in the southwestern part of the Barents Sea, have been studied to interpret lithology, and diagenesis and their effect on the reservoir quality, and to compare reservoir properties of the different reservoir units. Petrophysical log data have been calibrated for reservoir description in cases where core material is not available. The studied formations are comprised by the St&#248;, Fuglen, Hekkingen, Knurr...

Mallast, Ulf

Arid regions, that have a terrestrial share of 30 %, heavily rely on groundwater for do-mestic, industrial and irrigation purposes. The reliance on groundwater has partly turned into a dependency in areas where the increasing population number and the expansion of irrigated agricultural areas demand more groundwater than is naturally replenished. Yet, spatial and temporal information on groundwater are often scarce induced by the facts that groundwater is given a low priority in many national bu...

Larsson, Markus

This thesis presents a comparison of conventional agriculture and Ecological Recycling Agriculture (ERA) in terms of their environmental and socio-economic effects. Environmental effects include greenhouse gas emissions and energy use but the focus is on leakage of nutrients. Socio-economic effects include production, costs and benefits at macro, firm and household levels. The comparison is made at regional (Baltic Sea), national (Swedish) and local (Järna community/Södertälje municipality) leve...

Vanderklift, Mathew Arie

Generalist herbivores profoundly influence the biomass and species composition of macroalgae assemblages. In subtidal ecosystems of temperate latitudes, large invertebrates are usually the most influential herbivores. I tested the prediction that exclusion of invertebrate herbivores would lead to changes in the biomass and species composition of the macroalgae assemblages that are a prominent feature of the reefs in south-western Australia. The most abundant invertebrate herbivores were sea urch...

McGehee, M. Angela

University of Central Florida College of Natural Sciences Thesis / Clutches of eggs wore collected from nesting loggerhead sea turtles (Caretta caretta caretta) on Merritt Island, Florida, during June - August 1977. Of these, 46 clutches were selected for experimentation to determine the extent to which certain factors affect hatching success. Twelve clutches were divided into subsamples which were incubated in sand maintained at 0, 25, 50, 75, and 100% moisture. Another twelve clutches were div...

Aslebagh, Shadi

Aquarius/SAC-D is a joint mission by National Aeronautics and Space Administration (NASA) and the Comision Nacional de Actividades Espaciales (CONAE), Argentine Space Agency. The satellite was launched in June 2011 and the prime remote sensing instrument is also named Aquarius (AQ). The main objective of this science program is to provide Sea Surface Salinity (SSS) maps of the global oceans every 7 days for understanding the Earth's hydrologic cycle and for assessing long-term global climate cha...

Long, Tonya Michele

Coastal habitats are highly dynamic and vulnerable to landscape-level disturbances such as storms and restoration projects. Along the east coast of Florida these areas are particularly valuable as they provide significant nesting habitat for two sea turtle species, the threatened loggerhead (Caretta caretta) and the endangered green turtle (Chelonia mydas). This coast was heavily impacted by three major hurricanes in 2004 and in some areas by large restoration projects in 2005. Recent remote sen...

Hassler, Bobby Vernon.

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Kjos, Wendell Arthur

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Lindstrom, Timothy Edward

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Ray, Douglas Scott.

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Dow, Larry A.

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Hardy, Robert F.

<p> Knowledge of species distribution and habitat associations are essential for conservation measures. Such information is lacking for many marine species due to their occupancy of broad and ephemeral habitats that are difficult to access for study. Sea turtles, specifically the surface&minus;pelagic juvenile stage of some species, are a group for which significant knowledge gaps remain surrounding their distribution and habitat use. Recent research has confirmed the long&minus;standing hypo...

Theres, Michael J.

When faced with an overseas contingency, efficiencies may be gained by using ships in conjunction with aircraft to transport military cargo from the Continental United States (CONUS) to an overseas Port of Debarkation (POD). This thesis evaluates a proposal to load air-transportable cargo aboard vessels at CONUS seaports and to ship that cargo to an appropriately located sea-air- interface (SAI) for further transport by air to the final POD. This bi-modal approach is profoundly different from th...

Bolich, Harry P.

This thesis contends that in wars between nations, there is a link between developments at sea and the character of the land campaign. When war occurs in the littoral area, command of the sea offers advantages to the military commander ashore. Those advantages include: mobility of troops and logistics, operational initiative, improved geographic access, and surprise. Naval superiority alone does not guarantee these advantages. The superior naval force must first concentrate a...

Molder, Holger

This thesis argues that the Baltic Sea region still faces significant security challenges in the post-Cold War era. In particular, nations in the region confront a "cooperative security dilemma." Baltic Sea countries are adopting a range of cooperative agreements to strengthen their security. By doing so, however, they may risk alienating other nations that are left out of those agreements, and thereby create an unstable security environment. This thesis examines the nature of the cooperative se...

Henderson, Rhonda M.

This thesis proposes a Fleet Support Officer Fleet Training (FSOFT) program that would allow Fleet Support Officers (FSOs) to attend Surface Warfare Officer School in Newport, RI, be assigned a Surface Warfare Officer (SWO) division officer tour, as an initial assignment, and then obtain a warfare pin. Following the SWO division officer tour, the FSO would resume a career in the FSO community. The feasibility of such a program and the impacts on both the SWO and FSO communities are discussed. Th...

Fleming, Gordon H.

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Shillinger, George Lewis

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Lawrence, Richard T.

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Nyhus, Ole Jonny

Ole Jonny Nyhus, Marine Technology, Norwegian University of Science and Technology.Abstract of Master&apos;s Thesis, levert 8. juni, 2014:Life Cycle Assessment of Farmed Salmon, Comparing a Closed with an Open Sea Cage System.The goal of this Master&apos;s Thesis is to do a Life Cycle Assessment (LCA) on a closed fish farm system and compare it to an open fish farm system, for so to make recommendations based on the results.Life Cycle Assessment is a method to calculate the environmental impacts...

Shih, Ping-Chang

In this thesis, an innovative algorithm for improving the accuracy of variational space-time stereoscopic reconstruction of ocean surfaces is presented. The space-time reconstruction method, developed based on stereo computer vision principles and variational optimization theory, takes videos captured by synchronized cameras as inputs and produces the shape and superficial pattern of an overlapped region of interest as outputs. These outputs are designed to be the minimizers of the variational o...

Kinda, Bazile

La fonte rapide des glaces de l'Arctique dans le contexte actuel du réchauffement climatique est un sujet scientifique majeur de ces 30 dernières années. L'Arctique joue un rôle fondamental dans l'équilibre du climat et requiert une attention particulière. Les régions arctiques sont alors surveillées par des observations satellitaires et des mesures in-situ. L'impact climatique de la fonte totale de la glace arctique est encore mal connu. Des recherches sont donc nécessaires pour le suivi à long...

Amjad, Muhammad

The Troll Field is called &#147;super giant gas field&#148;. This is the second largest gas field of offshore Europe with its 1670 billion m3 of gas and 615 million m3 of oil initially in place. The Troll Field was discovered in 1979 and located about 80 km offshore Norway on the northwestern edge of the Horda Platform and eastern edge of the Viking graben in the water depth of 300 &#150; 355 meter. The total area of the field is about 710 km2 and extends over four Norwegian Blocks (31/2, 31/3, ...

Vandeputte, Marc

Le bar (Dicentrarchus labrax) est une espèce majeure de l'aquaculture méditerranéenne, dont la production est passée de presque rien en 1985 à plus de 100 000 tonnes annuelles aujourd'hui. Dans un grand nombre de cas, des géniteurs sauvages sont encore utilisés pour produire des juvéniles chez cette espèce, et l'on constate une forte prédominance des mâles, aux performances zootechniques inférieures, dans les populations d'élevage. Le but du présent travail de recherche était tout d'abord de qua...

This thesis examines the possible teleconnections between North Pacific sea surface temperatures and synoptic extended dry spells and droughts on the canadian Prairies. Dry spells are a natural occurrence on the Canadian Prairies. It is also a well known fact that extended dry spells often lead to droughts. The major synoptic cause of extended dry spells and droughts on the Canadian Prairies includes the presence of a quasi-stationary mid-tropospheric ridge over the area. What causes this ridge ...

Wilt, Brian David

<p> The oceans and seas play a fascinating role in human culture and literature. This thesis examines the sea imagery in several Anglo-Saxon poems in order to gain a deeper understanding of the function the sea plays in the Anglo-Saxon literary psyche. These texts include <i>Beowulf, Andreas, Exodus,</i> as well as the shorter "Seafarer" and "Whale" poems. The first part of this thesis focuses on sea imagery at the word level, analyzing Anglo-Saxon morphology and lexical compounding as a key to ...

Gunn, A. Hope

Despite the uncertainties that exist within climate change projection models, the only way to reduce our vulnerability to future changes in sea level is to implement adaptation strategies. The primary goal should not be to determine a worst-case scenario, but instead to identify the most vulnerable areas first, and to gradually introduce phased adaptation strategies into relatively lower risk areas. The present study looks at how we assess the potential impacts of sea level rise and how we can m...

Pate, Jessica Hope

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Sinkevych, Andrii

Regional cooperation around inland seas plays an important role in environmental protection as it can involve all countries from the catchment area. Two regional organizations, HELCOM in the Baltic Sea and BSC in the Black Sea regions serve as intermediary for joint efforts and have the same tasks in protection of their respective seas. While HELCOM operates in a region recognized as a role model of regional cooperation, the BSC suffers from poorer intergovernmental relations. The task set was t...

McCarty, Christopher Michael

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Shermzn, Philip K.

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Yackel, John J.

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Baker, James Stephen

The desire for territory has been a frequent cause of conflict. Latterly, a territorial integrity norm has emerged, rendering conquest illegitimate and contributing to peace. Studies of this development have not examined the politics of maritime space, despite the construction of a territorial-like order at sea last century. The oceans are materially, legally and politically distinct to land, making the extrapolation of a norm of territorial integrity to the oceans problematic. Nevertheless, thi...

Gerlinsky, Carling Dawn

The diving ability of marine mammals is limited by body oxygen stores (TBO) and rates of oxygen depletion (diving metabolic rate; DMR), which can be expressed as the calculated aerobic dive limit (cADL). Diving ability must also be influenced by CO₂ production and control of ventilation. I investigated the factors that limit the diving ability of Steller sea lions (Eumetopias jubatus), including the effect of nutritional stress on the cADL. Specifically, I 1) determined the cADL of Steller sea...