Oceanography Commons^™

Nantucket Shellfish Management Plan, Kristin Uiterwyk, Steve Bliven, Dan Leavitt, Jack Wiggin, Urban Harbors Institute, University Of Massachusetts Boston

Office of Community Partnerships Posters

Nantucket’s shellfish resources are an important part of the Island’s history, culture, and economy. Nantucket waters support one of the country’s last wild-caught bay scallop fisheries. Elsewhere along the Atlantic coast, fishing pressure, habitat loss, and disease have severely depleted bay scallop populations. Although Nantucketers continue to make a living harvesting shellfish from the Island’s waters, many do so with concern for the future of the resources and the habitats that support them. Urban Harbors Institute (UHI) provided technical assistance to the community to develop a Shellfish Management Plan (SMP) that addresses issues of water quality, habitat loss, climate change, …

The Urban Harbors Institute, Urban Harbors Institute, University Of Massachusetts Boston

Office of Community Partnerships Posters

The Urban Harbors Institute (UHI) is a public policy and applied-science research center focused on issues affecting urban waterfronts and coastal and ocean resources. Our mission is to increase understanding of the marine environment, improve management practices, and promote informed decision making at the local, state and national levels. UHI employs a multidisciplinary approach in all its research and education projects, blending science, policy, and management.

Coastsweep: The Massachusetts Coastal Cleanup Program, Dennis N. Leigh, Kristen Uiterwyk, Jack Wiggin, Schanna James, Allison Novelly, Robin Lacey, Anne Donovan, Arden Miller, Urban Harbors Institute, University Of Massachusetts Boston

Office of Community Partnerships Posters

Through this project, volunteers in communities throughout Massachusetts turn out in large numbers each September and October for COASTSWEEP, the statewide coastal cleanup program sponsored by the Massachusetts Office of Coastal Zone Management (CZM) and coordinated by the Urban Harbors Institute (UHI) of the University of Massachusetts Boston. COASTSWEEP is part of the International Coastal Cleanup (ICC) organized by Ocean Conservancy in Washington, DC. Through the efforts of the ICC, volunteers from all over the world collect marine debris and record information about the trash they collect. This information is then analyzed and used to identify sources of debris and …

Modeling The Dispersion Of Eastern Oyster Larvae (Crassostrea Virginica) And Its Effects On The Movement Of Disease Resistant Genes In The Delaware Bay Estuary, Diego A. Narvaez

OES Theses and Dissertations

This study combines several models to address two primary research questions. How does the interaction of larval biology and environmental variability determine the spatial distribution of oyster larvae in Delaware Bay? What is the role of larval dispersion in the transference of disease-resistant genes? The particle-tracking module in the Regional Ocean Modeling System (ROMS) was converted into an Individual-Based model representing Eastern oyster larvae that has growth and vertical migration. Exchange of larvae between natural oyster reefs was estimated and used in an Individual-Based genetic model that simulates the genetic structure of eastern oysters. Particles were released from a number …

The Modified Coastal Storm Impulse Parameter, Sayed Gholamreza Mahmoudpour

Civil & Environmental Engineering Theses & Dissertations

The correlation of the morphological changes to the coast and storm characteristics is among interests of coastal engineers. Better understandings of a storm's potential forces ultimately lead engineers to safer designs and minimize the damages. Therefore, a need to quantify the storm potential forces to a storm parameter is evident. The desired storm parameter is to consider all the relative physical factors and is to present realistic results that then can be proven by actual nature response.

The concept of Coastal Storm Impulse (COSI) parameter was first introduced by Basco and Klentzman (2006) and is based on the conservation of …

Coastal Exploration Of The Southern Black Sea Off Ereğli And Sinop, Turkey, Michael L. Brennan, Dan Davis, Chris Roman, Ilya V. Buynevich, Alexis Catsambis, Meko Kofahl, Maureen Merrigan, Suna Tuzun, Muhammet Duman, Derya Urkmez, J. Ian Vaughn, Tufan Turanli

Graduate School of Oceanography Faculty Publications

No abstract provided.

The Development Of High-Resolution Seafloor Mapping Techniques, Chris Roman, Gabrielle Inglis, J. Ian Vaughn, Clara Smart, Bertrand Douillard, Stefan Williams

Graduate School of Oceanography Faculty Publications

No abstract provided.

Continued Exploration Of The Santorini Volcanic Field And Cretan Basin, Aegean Sea, Katherine L. C. Bell, Paraskevi Nomikou, Steven N. Carey, Eleni Stathopoulou, Paraskevi Polymenakou, Athanasios Godelitsas, Chris Roman, Michelle Parks

Graduate School of Oceanography Faculty Publications

No abstract provided.

Submarine Volcanism In The Straits Of Sicily, Steven N. Carey, Katherine L. C. Bell, Michael Marani, Mauro Rosi, Edward T. Baker, Chris Roman, Marco Pistolesi, Joshua Kelly

Graduate School of Oceanography Faculty Publications

No abstract provided.

Links From Mantle To Microbe At The Lau Integrated Study Site: Insights From A Back-Arc Spreading Center, Margaret K. Tivey, Erin Becker, Roxanne Beinart, Charles R. Fisher, Peter Girguis, Charles H. Langmuir, Peter J. Michael, Anna-Louise Reysenbach

Biology Faculty Publications and Presentations

The Lau Integrated Study Site (ISS) has provided unique opportunities for study of ridge processes because of its back-arc setting in the southwestern Pacific. Its location allows study of a biogeographical province distinct from those of eastern Pacific and mid-Atlantic ridges, and crustal compositions along the ridge lie outside the range of mid-ocean ridge crustal compositions. The Lau ISS is located above a subduction zone, at an oblique angle. The underlying mantle receives water and other elements derived from the downgoing lithospheric slab, with an increase in slab influence from north to south. Water lowers the mantle melting temperature and …

Fragilariopsis Diatom Evolution In Pliocene And Pleistocene Antarctic Shelf Sediments, Charlotte Sjunneskog, Christina R. Riesselman, Diane Winter, Reed Scherer

ANDRILL Research and Publications

The late Pliocene – early Pleistocene sediment record in the AND-1B core from the McMurdo Sound, Ross Sea, Antarctica, displays a rich diversity and high abundance of diatoms, including several new morphologies within the genus Fragilariopsis. These new morphologies exhibit similarities to the extinct late Miocene/early Pliocene species Fragilariopsis aurica Gersonde and Fragilariopsis praecurta Gersonde, as well as to the modern sea ice-associated species Fragilariopsis ritscheri Hustedt and Fragilariopsis obliquecostata van Heurck. From the diverse morphologies present, we use light microscopy and scanning electron microscopy to identify and describe the characteristics of three new taxa, Fragilariopsis laqueata Riesselman, Fragilariopsis …

Orange Matters, Tom Raynor, Jay Cox, Eileen T. Jevis, Christine Yackel, Susan Parks

Syracuse University Magazine

No abstract provided.

Winter 2012, Nsu Oceanographic Center

Currents

No abstract provided.

Mapping Gas Seeps With The Deepwater Multibeam Echosounder On Okeanos Explorer, Thomas C. Weber, Larry A. Mayer, Jonathan Beaudoin, Kevin W. Jerram, Mashkoor A. Malik, Bill Shedd, Glen Rice

Center for Coastal and Ocean Mapping

No abstract provided.

Diatom Evidence For The Onset Of Pliocene Cooling From And-1b, Mcmurdo Sound, Antarctica, Christina R. Riesselman, Robert B. Dunbar

ANDRILL Research and Publications

The late Pliocene, ~3.3–3.0 Ma, is the most recent interval of sustained global warmth in the geologic past. This window is the focus of climate reconstruction efforts by the U.S. Geological Survey’s Pliocene Research, Interpretation, and Synoptic Mapping (PRISM) Data/Model Cooperative, and may provide a useful climate analog for the coming century. Reconstructions of past surface ocean conditions proximal to the Antarctic continent are essential to understanding the sensitivity of the cryosphere to this key interval in Earth’s climate evolution. An exceptional marine sediment core collected from the southwestern Ross Sea (78° S), Antarctica, during ANDRILL’s McMurdo Ice Shelf Project …

A Diatom Record Of Late Pliocene Cooling From The Ross Sea Continental Shelf, And-1b, Antarctica, Charlotte Sjunneskog, Diane Winter

ANDRILL Research and Publications

A late Pliocene – early Pleistocene, 2.9–2.0Ma, diatom record from the Antarctic Geological Drilling Program (ANDRILL) MIS drillcore AND-1B is presented. This core, recovered from beneath the Ross Ice Shelf south of Ross Island, comprises multiple diatomaceous-sediment units deposited during interglacial periods with open water over the core site. These represent interglacial phases of orbitally paced climate cycles and are punctuated by glacial advances. Extant diatom assemblages have limited presence in the late Pliocene record, which makes environmental interpretation less straight forward. We employ modern ecological data in combination with late Pliocene to present variation in diatom assemblages across the …

Fragilariopsis Tigris Sp. Nov., A New Late Pliocene Antarctic Continental Shelf Diatom With Biostratigraphic Promise, Christina R. Riesselman

ANDRILL Research and Publications

Anew species within the genus Fragilariopsis, F. tigris, is described and illustrated using light microscopy and scanning electron microscopy. This species is restricted to a single 8-meter-thick diatom unit within the 585-meter-long section of alternating diatomites and diamictites recovered in the upper portion of the ANtarctic geological DRILLing (ANDRILL) McMurdo Ice Shelf Project (MIS) AND-1B marine sediment core. This new taxon from a diverse, well-preserved diatom assemblage is inferred to be the youngest member of the well-documented, biostratigraphically useful F. praeinterfrigidaria – F. interfrigidaria – F. weaveri lineage and may represent a near-shore corollary to the open-ocean species …

Fall 2012, Nsu Oceanographic Center

Currents

No abstract provided.

Circulation And Water Properties And Their Relationship To The Oyster Disease Msx In Delaware Bay, Zhiren Wang, Dale B. Haidvogel, David Bushek, Susan E. Ford, Eileen E. Hofmann, Eric N. Powell, John Wilkin

CCPO Publications

We apply a high-resolution hydro-dynamical model to investigate the role of physical factors influencing infection prevalence of Haplosporidium nelsoni, causative agent of MSX disease in the eastern oyster (Crassostrea virginica), in Delaware Bay, USA. Validation studies conducted for the years 2000 and 2010-2011 confirm that the model, based upon the Regional Ocean Modeling System, has significant skill in the recovery of observed water level, temperature, salinity, and velocity. Multi-year simulations are performed for periods representing temporal and spatial variations in H. nelsoni infection prevalence (1974-76, 1979-81, 1984-86, 1990-92, and 2006-09) to assess the degree to which the …

Can Oysters Crassostrea Virginica Develop Resistance To Dermo Disease In The Field: The Impediment Posed By Climate Cycles, Eric N. Powell, John M. Klinck, Ximing Guo, Eileen E. Hofmann, Susan E. Ford, David Bushek

CCPO Publications

Populations of eastern oysters, Crassostrea virginica, are commonly limited by mortality from dermo disease. Little development of resistance to Perkinsus marinus, the dermo pathogen, has occurred, despite the high mortality rates and frequency of epizootics. Can the tendency of the parasite to exhibit cyclic epizootics limit the oyster's response to the disease despite the presence of alleles apparently conferring disease resistance? We utilize a gene-based population dynamics model to simulate the development of disease resistance in Crassostrea virginica populations exposed to cyclic mortality encompassing periodicities expected of dermo disease over the geographic range at which epizootics have been …