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Filtering by: Funding statement This research was supported by the NASA Terrestrial Ecology Program (NNX09AL51G). Remove constraint Funding statement: This research was supported by the NASA Terrestrial Ecology Program (NNX09AL51G). Advisor Heppell, Selina S. Remove constraint Advisor: Heppell, Selina S.

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Ecology of the northern subpopulation of northern anchovy (Engraulis mordax) in the California Current large marine ecosystem

Creator:

Litz, Marisa N. C.

Abstract:

Northern anchovy (Engraulis mordax) are a dominant forage fish in the California Current large marine ecosystem (CCLME). However, little is known about northern anchovy abundance, distribution, age structure, or population fluctuations relative to ocean conditions in the eastern boundary upwelling system off the U.S. West Coast. This thesis includes three...

Resource Type:

Masters Thesis

Full Text:

). This region is characterized by the broad, southward meandering California Current, which extends
Surfacing Behavior of Juvenile Loggerhead Sea Turtles (Caretta caretta) in North Carolina

Creator:

Patton, B. Wren

Abstract:

Sea turtles are endangered species that can be censused with aerial surveys, but the number of turtles in an area must be extrapolated to include animals that are submerged. Twenty-one satellite tags were attached to juvenile loggerhead sea turtles (Caretta caretta) in North Carolina. I analyzed surfacing and dive behavior...

Resource Type:

Honors College Thesis

Full Text:

for their invaluable insight into the unique statistical difficulties presented in this research
Giant otters (Pteronura brasiliensis) and humans in the lower Yasuní Basin, Ecuador : spacio-temporal activity patterns and their relevance for conservation

Creator:

Carrera-Ubidia, Paola M.

Abstract:

Giant otters (Pteronura brasiliensis) and humans in the Lower Yasuní Basin (Ecuador) have similar food and space requirements: they consume comparable arrays of fish species, and they use similar aquatic and terrestrial habitats. Resource partitioning could facilitate coexistence by allowing each species exclusive access to some resources. My research examines...

Resource Type:

Masters Thesis

Full Text:

suitable terrestrial and aquatic habitat was smaller. Human activity signs were distributed along the
Functional Diversity : A Tool to Track Spatiotemporal Changes in the Trophic Organization of Reef Fish Assemblages

Creator:

Rincón Diaz, Martha P.

Abstract:

Biodiversity loss in highly diverse systems such as coral reefs has been linked to significant declines in the ecosystem functions and services provided by marine species. Ecological functioning of coral reefs and the resistance of coral reef fish communities to disturbance depend on the functional traits of species that promotes...

Resource Type:

Dissertation

Full Text:

, contributed to data analysis and comments on the third chapter. My doctoral studies and this research
Defining habitat preferences of pelagic loggerhead sea turtles (Caretta caretta) in the North Atlantic through analysis of behavior and bycatch

Creator:

McCarthy, Abigail L.

Abstract:

For many species of marine turtle the characteristics that define pelagic habitat have yet to be fully identified. A better understanding of these habitat characteristics is critical to reduce high seas fisheries interactions with turtles, especially as the status of many turtle populations has placed them on the threatened or...

Resource Type:

Masters Thesis

Full Text:

to the Pelagic Fisheries Research Program for graduate funding throughout the majority of my
Movement patterns and marine habitat associations of juvenile loggerhead sea turtles (Caretta caretta) in the southwestern Atlantic Ocean

Creator:

Barceló, Caren

Abstract:

Bycatch, or the incidental capture of non-target species, has been implicated as one of the main factors leading to population declines of many large marine vertebrates, including sea turtles. To effectively manage and conserve these long-lived species, their marine distribution, high use areas, foraging habitats, and regions of highest likelihood...

Resource Type:

Masters Thesis

Full Text:

distributed in oceanic waters to the north of the region that was utilized by tracked turtles in this study
Community-based sea turtle monitoring and management at Helen Reef, Hatohobei State, Republic of Palau

Creator:

Barr, Julie M.

Abstract:

Remote areas are frequently homes to regional subpopulations of endangered green sea turtles (Chelonia mydas) and their essential habitat. Local communities are often the users and primary stewards of this valuable and charismatic resource. Recognizing this, a Hatohobeian community group in Palau has engaged in longterm monitoring and conservation management...

Resource Type:

Masters Thesis

Full Text:

and half as wide as measured in 1937 by the Japanese when the tuna packing plant was in operation on
It’s in Their Bones: Ecological Drivers of Kemp’s Ridley Sea Turtle (Lepidochelys kempii) Somatic Growth and Population Dynamics

Creator:

Ramirez, Matthew D.

Abstract:

Somatic growth variation manifests from the cumulative effects of a suite of biological, ecological, and environmental processes and can have profound effects on individual fitness and species population dynamics. As ectotherms whose growth dynamics are greatly influenced by environmental factors, sea turtles display considerable variation in somatic growth within and...

Resource Type:

Dissertation

Full Text:

were provided by the NSF Graduate Research Fellowship Program, the National Oceanic and Atmospheric
Maternal effects, the environment, and age structure: A mechanistic fine-scale approach to describe a complex set of factors contributing to larval growth and survival

Creator:

Arnold, Linsey M.

Abstract:

The relationship between population characteristics and population productivity is fundamental to sustainable fisheries management, but predicting productivity remains a challenging task. Proposed mechanisms driving the variability in productivity at a given population size have included environmental and demographic factors related to the age structure of the population, but the broad-scale...

Resource Type:

Dissertation

Full Text:

, project number 629. The research presented in Chapters 3 and 4 was supported by a grant from the
Quantitative Tools for Monitoring Strategy Evaluation and Assessment of Sea Turtle Populations

Creator:

Piacenza, Susan E. H.

Abstract:

Green sea turtles, Chelonia mydas, have endangered and threatened populations globally, but several populations show signs of population recovery. In Hawaii, nesting female green turtles have increased 5.7% year⁻¹ since 1973, but wide fluctuations in census counts of nesting females make recovery diagnosis difficult. For effective management planning, it is...

Resource Type:

Dissertation

Full Text:

size, recruitment and trends over time? In this dissertation, my research culminates in the

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Academic Affiliation

Fisheries and Wildlife12
College of Oceanic and Atmospheric Sciences1

Advisor

Heppell, Selina S.[remove]14
Klinck, Holger1
Mellinger, David K.1
Ryer, Clifford H.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2007 to 2022

View distribution

Committee Member

Miller, Jessica A.3
Strub, P. Ted2
Thompson, Grant G.2
Arismendi, Ivan1
Arnold, Stevan J.1
more Committee Members »

Creator

Ramirez, Matthew D.2
Arnold, Linsey M.1
Barcelo, Caren1
Barr, Julie M.1
Boersma, Kate S.1
more Creators »

Date

Date range begin – Date range end

Current results range from 2006 to 2021

View distribution

Decade

2020-20292
2010-20197
2000-20095

Degree Field

Fisheries Science10
Wildlife Science2
Biology1
Fisheries and Wildlife Sciences1
International Studies1
more Degree Fields »

Degree Level

Master's7
Doctoral6
Bachelor's1

Degree Name

Master of Science (M.S.)7
Doctor of Philosophy (Ph.D.)6
Honors Bachelor of Arts (H.B.A.)1
Honors Bachelor of Science (H.B.S.)1

File Format

application/pdf5

Language

English [eng]14

License

All rights reserved14

Non-Academic Affiliation

Oregon State University. Graduate School8
Hatfield Marine Science Center1
Oregon State University. Honors College1

Peer Reviewed

No13

Resource Type

Masters Thesis7
Dissertation6
Honors College Thesis1

Rights Statement

In Copyright14

Subject

Food habits -- Ecuador -- Yasuni River Watershed1
Green turtle -- Conservation1
Green turtle -- Counting1
Green turtle -- Habitat -- Conservation -- Palau -- Hatohobei State1
Green turtle -- Monitoring -- Hawaii1
more Subjects »

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