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Ichthyoplankton Composition In The Loop Current And Sargassum Habitats In The Northern Gulf Of Mexico, Stephanie M. Taylor 2015 University of Southern Mississippi

Ichthyoplankton Composition In The Loop Current And Sargassum Habitats In The Northern Gulf Of Mexico, Stephanie M. Taylor

Master's Theses

Ichthyoplankton in the Gulf of Mexico (GOM) aggregate in two different habitats that serve to provide refuge and concentrate prey in an otherwise oligotrophic environment: the Loop Current (LC) a mesoscale oceanographic feature characterized by the transition of environmental conditions of the water mass between the GOM and Caribbean; and Sargassum, a two species assemblage of floating brown algae that is habitat for many larval and juvenile obligate and associated fishes. The objectives of this study were to characterize the density and community composition of ichthyoplankton within these habitats using multivariate analysis. I identified three unique assemblages of ichthyoplankton at ...


Analyses Of Indices Of Abundance For Important Groundfish Species In The Northern Gulf Of Mexico From 1987-2009, Relative To Shrimp Bycatch; With Age And Growth Of Three Sciaenid Species, Allison R. Odom 2015 University of Southern Mississippi

Analyses Of Indices Of Abundance For Important Groundfish Species In The Northern Gulf Of Mexico From 1987-2009, Relative To Shrimp Bycatch; With Age And Growth Of Three Sciaenid Species, Allison R. Odom

Master's Theses

Bycatch in the shrimp fishery became of particular concern in the 1980s during the peak of shrimp harvest in the northern Gulf of Mexico. Shrimp bycatch is of major importance because the majority of catch in the fishery is not intended target species of commercial shrimp, and most of the additional bycatch is returned to the sea dead or dying, inducing higher rates of mortality. This study was developed to assess the potential ecosystem effects of shrimp harvest on thirty selected species/species groups commonly encountered within the shrimp fishery as bycatch. Delta-lognormal modeling (DLM) was used to determine the ...


Possible Stock Structure Of Coastal Bottlenose Dolphins Off Baja California And California Revealed By Photo-Identification Research, Richard H. Defran, Marthajane Caldwell, Eduardo Morteo, Aimée Lang, Megan Rice, David Weller 2015 San Diego State University

Possible Stock Structure Of Coastal Bottlenose Dolphins Off Baja California And California Revealed By Photo-Identification Research, Richard H. Defran, Marthajane Caldwell, Eduardo Morteo, Aimée Lang, Megan Rice, David Weller

Bulletin of the Southern California Academy of Sciences

Boat-based photo-identification research has been carried out on bottlenose dolphins in the eastern North Pacific coastal waters of northern Baja California, Mexico and southern and central California, USA from 1981 to 2001. Within these waters, bottlenose dolphins routinely travel back and forth between coastal locations while generally staying within a narrow coastal corridor of about 1 km or less from the shore. Inter-area match rates between 616 dolphins photo-identified in Ensenada, San Diego, Orange County and Santa Barbara between 1981-2000 averaged 76%. To explore possible southern range limits for these California coastal dolphins, photo-identification surveys were carried out in the ...


Identical Response Of Caged Rock Crabs (Genera Metacarcinus And Cancer) To Energized And Unenergized Undersea Power Cables In Southern California, Usa, Milton S. Love, Mary M. Nishimoto, Scott Clark, Ann Scarborough Bull 2015 University of California, Santa Barbara

Identical Response Of Caged Rock Crabs (Genera Metacarcinus And Cancer) To Energized And Unenergized Undersea Power Cables In Southern California, Usa, Milton S. Love, Mary M. Nishimoto, Scott Clark, Ann Scarborough Bull

Bulletin of the Southern California Academy of Sciences

Energy generation facilities (i.e., wave and wind) are being sited in offshore marine waters. The electricity generated from these facilities is transmitted to shore through cables carrying alternating or direct current. This current produces an electromagnetic field (EMF) that is emitted from the cable. Concerns have been voiced regarding how marine organisms, in this instance crabs, respond to the EMF emitted by submarine power cables. Two submarine cables, one energized and the other unenergized, and separated by about 7 m, were used in the experiment. Crabs (Metacarcinus anthonyi (Rathbun, 1897) and Cancer productus (Randall, 1839)) were placed in plastic ...


Repeated, Long-Distance Migrations By A Philopatric Predator Targeting Highly Contrasting Ecosystems, James S. E. Lea, Bradley M. Wetherbee, Nuno Queiroz, Neil Burnie, Choy Aming, Lara L. Sousa, Gonzalo R. Mucientes, Nicolas E. Humphries, Guy Harvey, David W. Sims, Mahmood S. Shivji 2015 Guy Harvey Research Institute, Nova Southeastern University, Marine Biological Association of the United Kingdom, Danah Divers, and University of Plymouth

Repeated, Long-Distance Migrations By A Philopatric Predator Targeting Highly Contrasting Ecosystems, James S. E. Lea, Bradley M. Wetherbee, Nuno Queiroz, Neil Burnie, Choy Aming, Lara L. Sousa, Gonzalo R. Mucientes, Nicolas E. Humphries, Guy Harvey, David W. Sims, Mahmood S. Shivji

Oceanography Faculty Articles

Long-distance movements of animals are an important driver of population spatial dynamics and determine the extent of overlap with area-focused human activities, such as fishing. Despite global concerns of declining shark populations, a major limitation in assessments of population trends or spatial management options is the lack of information on their long-term migratory behaviour. For a large marine predator, the tiger shark Galeocerdo cuvier, we show from individuals satellitetracked for multiple years (up to 1101 days) that adult males undertake annually repeated, roundtrip migrations of over 7,500km in the northwest Atlantic. Notably, these migrations occurred between the highly disparate ...


Notes On Contributors, 2015 The University of Maine

Notes On Contributors

The Catch

No abstract provided.


Morning Memory, Dennis Damon 2015 The University of Maine

Morning Memory, Dennis Damon

The Catch

No abstract provided.


Ghostshipping, margot a. kelley 2015 Institute for Doctoral Studies in the Visual Arts

Ghostshipping, Margot A. Kelley

The Catch

No abstract provided.


Yesterday's Edges: Land, Sea, Sky, Ellen Goldsmith 2015 Professor Emeritus, New York City College of Technology

Yesterday's Edges: Land, Sea, Sky, Ellen Goldsmith

The Catch

No abstract provided.


Editor's Note, Linda Buckmaster 2015 The University of Maine

Editor's Note, Linda Buckmaster

The Catch

No abstract provided.


Full Issue, Volume Iii, 2015 The University of Maine

Full Issue, Volume Iii

The Catch

No abstract provided.


Isolation And Characterization Of Microalgae Strains For Live Food In Sulawesi, Indonesia, Wa Iba, Michael A. Rice 2015 University of Rhode Island

Isolation And Characterization Of Microalgae Strains For Live Food In Sulawesi, Indonesia, Wa Iba, Michael A. Rice

Michael A Rice

Four strains of diatoms were isolated from the waters of Kendari Bay in Southeast Sulawesi, Indonesia, including strains of Melosira moniliformis, Chaetoceros, sp. and a larger species that is likely to be Tetraselmis weissflogii. Isolated strains have exhibited a wide range of salinity tolerances in the 20 to 35 psu range. Strains of isolated phytoplankton were able to reach high densities consistent with strains suitable for use as aquaculture feeds. One strain Kbl-3 attained lipid content of 22.3 percent per gram dry weight at salinity of 35 psu, suggesting that it may be a good feed for shrimp larvae ...


Surface And Subsurface Application Of Chemical Dispersants And Associated Ecosystem Impacts, Adam V. Radpour 2015 University of San Francisco

Surface And Subsurface Application Of Chemical Dispersants And Associated Ecosystem Impacts, Adam V. Radpour

Master's Projects

Chemical dispersants are applied to spilled oil in marine environments when other, less controversial, methods are not adequate for the incident. They are considered to be a response method as opposed to a direct cleanup method, with the intended goals of reducing risk of exposure to sensitive shorelines, reducing environmental injury to surface-dwelling sea birds and marine mammals, and facilitating the biodegradation of spilled oil into the water column.

For this research, both surface and subsurface application of dispersants were evaluated in terms of oil characteristics and volume, and oceanic and atmospheric conditions. More data exists to support the effectiveness ...


Management Recommendations For Restoration Of The Degraded Olympia Oyster, Ostrea Lurida Carpenter 1864 In Tomales Bay, Ca, Carolyn M. Gibson 2015 University of San Francisco

Management Recommendations For Restoration Of The Degraded Olympia Oyster, Ostrea Lurida Carpenter 1864 In Tomales Bay, Ca, Carolyn M. Gibson

Master's Projects

This research addresses the effective restoration of Olympia oyster populations in Tomales Bay, Marin County, California. Chapter 2 provides background information on the Tomales Bay estuary, regional history, and ecology of the Olympia oyster. Following this background discussion, each of the three aforementioned degraders of Olympia oyster populations in Tomales Bay is presented: ocean acidification (Chapter 3), sedimentation (Chapter 4), and invasive species (Chapter 5). Each of these issues creates numerous barriers that require the attention of resource protection managers. Chapter 6 presents overall Research Conclusions and Chapter 7 identifies management recommendations to effectively begin the restoration of the Olympia ...


Dna Analysis Of Surfactant Associated Bacteria In The Sea Surface Microlayer In Application To Satellite Remote Sensing Techniques: Case Studies In The Straits Of Florida And The Gulf Of Mexico, Bryan Hamilton 2015 Nova Southeastern University Oceanographic Center

Dna Analysis Of Surfactant Associated Bacteria In The Sea Surface Microlayer In Application To Satellite Remote Sensing Techniques: Case Studies In The Straits Of Florida And The Gulf Of Mexico, Bryan Hamilton

Theses and Dissertations

Several genera of bacteria residing in the sea surface microlayer and in the near-surface layer of the ocean have been found to be involved in the production and decay of surfactants. Under low wind speed conditions, surfactants can suppress short gravity capillary waves at the sea surface and form natural sea slicks. These features can be observed with both airborne and satellite-based synthetic aperture radar (SAR). Using a new microlayer sampling method, a series of experiments have been conducted in the Straits of Florida and the Gulf of Mexico in 2013 to establish a connection between the presence of surfactant-associated ...


Herbivore Impacts On The Invasive Marine Alga Grateloupia Turuturu, Emily Bishop, Carol Thornber 2015 University of Rhode Island

Herbivore Impacts On The Invasive Marine Alga Grateloupia Turuturu, Emily Bishop, Carol Thornber

Senior Honors Projects

Invasive species have the ability to outcompete natives, and can create a monoculture if not mitigated by herbivores or some other mechanism. Limited information exists on the ecology of the invasive macroalga Grateloupia turuturu and how it is impacted by herbivores. Using laboratory mesocosm experiments, we investigated the ability of two invasive herbivore species common in Rhode Island, the snail Littorina littorea and Asian shore crab Hemigrapsus sanguineus, to control Grateloupia populations. In the first trial, Grateloupia was provided to a single herbivore (either Littorina or Hemigrapsus) or both herbivores together. Grateloupia controls were in the same mesocosms as each ...


Acute Toxicity Of Β-N-Methylamino-L-Alanine (Bmaa) To Fathead Minnow (Pimephales Promelas) And Zebrafish (Danio Rerio), Jiayi Wang 2015 University of Nebraska-Lincoln

Acute Toxicity Of Β-N-Methylamino-L-Alanine (Bmaa) To Fathead Minnow (Pimephales Promelas) And Zebrafish (Danio Rerio), Jiayi Wang

Dissertations & Theses in Natural Resources

β-N-methylamino-L-alanine (BMAA) is a neurotoxic amino acid produced by most species of cyanobacteria. Exposure to BMAA has been hypothesized as a cause of ALS and possibly Parkinson’s and Alzheimer’s diseases for several decades. Both in vitro and in vivo experiments revealed that exposure to elevated concentrations of BMAA can damage motor neurons and cause motor dysfunctions. However, the exact mechanism of BMAA-induced neurotoxicity has not been well understood.

Based on the available literature and in spite of its water-soluble and non-protein nature, BMAA appears to be able to bioaccumulate in organisms. The ubiquity of cyanobacteria and the potential ...


Characterizing The Influence Of Atlantic Water Intrusion On Water Mass Formation And Primary Production In Kongsfjorden, Svalbard, Courtney Michelle Payne 2015 Bowdoin College

Characterizing The Influence Of Atlantic Water Intrusion On Water Mass Formation And Primary Production In Kongsfjorden, Svalbard, Courtney Michelle Payne

Honors Projects

With warming global temperatures and changes to large-scale ocean circulation patterns, warm water intrusion into Arctic fjords is increasingly affecting fragile polar ecosystems. This study investigated how warm Atlantic water intrusion and the tidewater glacial melting it causes impacted water mass formation and primary productivity in Kongsfjorden, Svalbard. Data were collected over a 2-week period during the height of the melt season in August near the Kronebreen/Kongsvegen glacier complex, the most rapidly retreating glacier in Spitsbergen. Since 1998, intruding waters have warmed between 4 and 5.5˚C, which has prevented sea ice formation and changed the characteristics of ...


Linking Old Librarianship To New: Aligning 5-Steps Of The Innovator's Dna In Creating Thematic Discovery Systems For The Everglades, L. Bryan Cooper, Margarita Perez Martinez 2015 Florida International University

Linking Old Librarianship To New: Aligning 5-Steps Of The Innovator's Dna In Creating Thematic Discovery Systems For The Everglades, L. Bryan Cooper, Margarita Perez Martinez

Works of the FIU Libraries

This poster presentation from the May 2015 Florida Library Association Conference, along with the Everglades Explorer discovery portal at http://ee.fiu.edu, demonstrates how traditional bibliographic and curatorial principles can be applied to: 1) selection, cross-walking and aggregation of metadata linking end-users to wide-spread digital resources from multiple silos; 2) harvesting of select PDFs, HTML and media for web archiving and access; 3) selection of CMS domains, sub-domains and folders for targeted searching using an API.

Choosing content for this discovery portal is comparable to past scholarly practice of creating and publishing subject bibliographies, except metadata and data are ...


The Acoustics Of Introduction: An Analysis Of Vocalizations From The Captive Introduction Of An Atlantic Bottlenose Dolphin, Tursiops Truncatus, Cheyenne M. Brady 2015 The University of Southern Mississippi

The Acoustics Of Introduction: An Analysis Of Vocalizations From The Captive Introduction Of An Atlantic Bottlenose Dolphin, Tursiops Truncatus, Cheyenne M. Brady

Honors Theses

Vocalizations from dolphins were recorded using a hydrophone on several different occasions: from seven previously-housed dolphins prior to introduction of a new animal and from all eight dolphins together, both on the day of introduction and post-introduction. The vocalizations were categorized by visual inspection of spectrograms using Raven, then totaled and averaged. Total vocalizations appeared to peak during the physical introduction of a new individual to the previously-housed dolphins; however, the rates of vocalization per animal per hour showed that the post-introduction period had the most acoustic communications between individual dolphins. Whistles, chirps (a subcategory of whistles), and unmodulated burst ...


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