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Full-Text Articles in Life Sciences
The Sociocultural Significance Of Maine's Oyster Based On Media Coverage Analysis, Syeira Clark
The Sociocultural Significance Of Maine's Oyster Based On Media Coverage Analysis, Syeira Clark
Honors College
Throughout the last decade, the oyster aquaculture industry in Maine has boomed, with 6 million pounds of oysters being harvested in 2021, about the amount that was harvested in 2016 (Cough, 2022). According to the founders of the Maine Oyster Trail, there are over 150 oyster farms currently operating on Maine’s coast, which is about twice as many as there were in 2016 (Maine Sea Grant). With this boom in the industry has come a wave of opportunity, as well as news coverage about the shellfish. This study examines the socio-cultural significance to the state of Maine. While the oyster …
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Electronic Theses and Dissertations
Atlantic salmon (Salmo salar L.) aquaculture production in Maine is a valuable contributor to the economy, the expansion of which has been challenged by the parasitic salmon louse Lepeophtheirus salmonis. As planktonic organisms, the life of the salmon louse is primarily dictated by the physical conditions of the environment: the temperature for development time, salinity for survival, and current velocity for transport. Salmon lice are obligate parasites for whom the successful infection of a suitable host is critical to completion of their life cycle. However, little is understood about the effects of current velocity on infection success. Hydrodynamic …
Marine Aquaculture In Maine: Understanding Diverse Perspectives And Interactions At Multiple Scales, Melissa L. Britsch
Marine Aquaculture In Maine: Understanding Diverse Perspectives And Interactions At Multiple Scales, Melissa L. Britsch
Electronic Theses and Dissertations
Coastal oceans are changing and experiencing increased use. The social and ecological benefits of healthy coastal oceans are well documented and include habitats for marine species, storm protection, and recreational opportunities (MEA, 2005). As the impacts of human activities are recognized, questions about how ocean spaces should be used are becoming more common. These questions are complex and involve many tradeoffs. Understanding the values people hold about uses, and how activities and ecosystems overlap, is critical for weighing tradeoffs and improving future management. I use the northeastern U.S. state of Maine to study human interactions with coastal oceans. Maine is …
Genetic Analysis Of Yellowtail (Seriola Lalandi) For Aquaculture In Maine, Sydney Avena
Genetic Analysis Of Yellowtail (Seriola Lalandi) For Aquaculture In Maine, Sydney Avena
Honors College
Aquaculture is a growing industry in Maine, and identifying new species with potential for aquaculture is crucial for its continuing success. The University of Maine’s Center for Cooperative Aquaculture Research (CCAR) currently holds a stock of California yellowtail (Seriola lalandi). Similar in taste to tuna or mackerel, yellowtail are wild-caught as well as aquacultured in net pens and recirculating aquaculture systems worldwide. The fish presently at CCAR originally came from Great Bay Aquaculture and their genetic makeup is unknown. Recent research on S. lalandi suggests that this circumglobal fish has enough genetic difference between populations in the Northeast Pacific, Northwest …
Senders, Receivers, And Spillover Dynamics: Understanding Transformative Forces Of Aquaculture In The Marine Aquarium Trade, Bryce Risley
Senders, Receivers, And Spillover Dynamics: Understanding Transformative Forces Of Aquaculture In The Marine Aquarium Trade, Bryce Risley
Electronic Theses and Dissertations
Industry and academic conversations on aquaculture’s role in the marine aquarium trade are often centered on production advancements, biological and reproductive constraints of concerned species, and conservation deliverables and often overlook the possible socioeconomic consequences of aquaculture production. Due attention is yet to be spent on understanding broader stakeholder sentiment on aquaculture production and the toll it may have on specialized suppliers such as those in the Sri Lankan marine ornamental fishery. Utilizing a framework derived from Coupled Human and Natural Systems, research found suppling stakeholders predominantly unable to participate in aquaculture production due to various access limitations. When viewed …
Sourcing And Evaluating The Use Of Detritus As A Supplementary Diet For Bivalve Aquaculture Using Stable Isotopes And Fatty Acid Biomarkers, Adrianus C. Both
Sourcing And Evaluating The Use Of Detritus As A Supplementary Diet For Bivalve Aquaculture Using Stable Isotopes And Fatty Acid Biomarkers, Adrianus C. Both
Electronic Theses and Dissertations
Detritus is a ubiquitous component of ecosystems and an important fuel for secondary production. Due to the extractive nature of bivalve aquaculture, detritus is often incorporated into carrying capacity and growth models for cultured bivalves. However, despite the complexity and difficulty in obtaining direct measurements, detritus is often treated as a homogeneous food source in models. Further understanding the role detritus plays in the diet of cultured bivalves could lead to more comprehensive and accurate models as well as more informed site selection for growers. The purpose of this study was to assess the abundance, bioavailability, and contribution of detritus …
Detrital Protein Contributes To Oyster Nutrition And Growth In The Damariscotta Estuary, Maine, Usa, Cheyenne M. Adams
Detrital Protein Contributes To Oyster Nutrition And Growth In The Damariscotta Estuary, Maine, Usa, Cheyenne M. Adams
Electronic Theses and Dissertations
Oyster aquaculture is an expanding industry that relies on identifying and utilizing natural estuarine conditions for the economically viable production of a filter-feeding crop. The eastern oyster, Crassostrea virginica, is the principal species currently cultured in Maine. In addition to preferentially consumed phytoplankton, various detrital complexes (non-algal and/or non-living organic matter) may provide some nutrition to C. virginica between times of phytoplankton abundance. Here I investigated the importance of detrital proteins in supporting the growth of oysters cultured in the upper Damariscotta Estuary. Oyster aquaculture in this area is highly successful and previous reports indicate that labile detrital protein …
Red Abalone Hemocyanin As An Alternative Hapten-Carrier For Vaccine Production, Isaiah N. Mansour
Red Abalone Hemocyanin As An Alternative Hapten-Carrier For Vaccine Production, Isaiah N. Mansour
Honors College
Vaccines protect millions of human lives per year from otherwise fatal illnesses. Vaccination promotes immunity by simulating infection with a non-pathogenic representative of the disease, an antigen, to prepare and train an immune response. Vaccine-safe antigens are often too small to elicit an immune response. These non-immunogenic molecules are referred to as haptens and are introduced to the immune system by hapten-carriers, large immune-stimulating proteins. Keyhole Limpet Hemocyanin (KLH), a respiratory protein of the giant keyhole limpet (Megathura crenulata), is the industry standard hapten-carrier. KLH is a potent yet safe immune-stimulant relied upon in research, available human medications, and emerging …
Advancing Development Of Porphyra Umbilicalis As A Red Algal Model System And Aquaculture Crop, Charlotte Royer
Advancing Development Of Porphyra Umbilicalis As A Red Algal Model System And Aquaculture Crop, Charlotte Royer
Electronic Theses and Dissertations
The marine red alga Porphyra umbilicalis (Rhodophyta, Bangiaceae) has ideal traits to allow it to become a model organism, including its economic value, reproduction in the northwestern Atlantic through asexual neutral spores (NS), and availability of fully-sequenced nuclear and organelle genomes. Research on the bacterial component of the Porphyra microbiome is ongoing. To advance model organism development and support microbial studies, data on natural reproductive trends and early embryonic development are needed, along with a system for genetic transformation, and ways of visualizing the attached microbial community. To meet these needs, two years of phenological data were analyzed, revealing seasonal …
Ecosystem Metabolism Modeling Of Estuaries In Maine: Using Dissolved Oxygen As A Tool For Aquaculture Site Assessment, Katherine Miller
Ecosystem Metabolism Modeling Of Estuaries In Maine: Using Dissolved Oxygen As A Tool For Aquaculture Site Assessment, Katherine Miller
Honors College
The net primary productivity (NPP), also known as the net ecosystem metabolism, of an estuary is a value indicative of the growth and activity of an estuary’s primary producers, relative to the metabolic activity of its consumers. When NPP is high, estuaries exhibit autotrophic conditions that have the capacity to support fruitful bivalve aquaculture. For oyster farmers, the ability to monitor an estuary’s NPP would allow them to predict and prepare for seasonal changes to oyster growth that result from changes to their phytoplankton food source and access to dissolved oxygen (DO). Not only would this aid farmers on site …
Aquaculture In Shared Waters Fact Sheet: Kelp Aquaculture, Sarah Redmond, Sam Belknap, Rebecca Clark Uchenna
Aquaculture In Shared Waters Fact Sheet: Kelp Aquaculture, Sarah Redmond, Sam Belknap, Rebecca Clark Uchenna
Maine Sea Grant Publications
“Kelp” are large brown marine macroalgae species native to New England and traditionally wild harvested for food. There are three commercially important kelp species in Maine—sugar kelp (Saccharina latissima), winged kelp (Alaria esculenta), and horsetail kelp (Laminaria digitata). Maine is developing techniques for culturing kelp on sea farms as a way for fishermen and farmers to diversify their operations while providing a unique, high quality, nutritious vegetable seafood for new and existing markets. Kelp is grown on submerged horizontal long lines on leased sea farms from September to May, making it a “winter crop” for Maine. The simple farm design, …
Social And Ecological Factors Affecting The Adoption Of Aquaculture, Karen Pianka
Social And Ecological Factors Affecting The Adoption Of Aquaculture, Karen Pianka
Electronic Theses and Dissertations
Commercial fishermen in Maine are increasingly dependent upon the American lobster fishery, and this reliance on a single species poses a threat to working waterfronts. Aquaculture represents a potential opportunity for commercial fishermen to diversify their income. Literature on the adoption of innovation suggests that factors such as age, education level, fishing experience, diversification, and leadership are important predictors of early adoption of innovation. However, few studies have examined whether such factors affect the adoption of aquaculture by commercial fishermen. Our marine policy research studied fishermen enrolled in two pilot shellfish and seaweed aquaculture classes held in 2013 in Harpswell …
Rapid: Natural Laboratories In The Chilean Fjords: Studying Reproduction And Development In Emergent Deep-Sea Corals, Rhian G. Waller
Rapid: Natural Laboratories In The Chilean Fjords: Studying Reproduction And Development In Emergent Deep-Sea Corals, Rhian G. Waller
University of Maine Office of Research Administration: Grant Reports
The northern Patagonian fjords lie on the interface between the high Andes Mountains in the east and the South Pacific Ocean, formed thousands of years ago through erosive glacial activity and tectonic sinking (Borgel, 1970). Around 12,000 years ago the icefields in the Chiloé Interior Sea began to open, leaving behind over 15,000km2 of fjords, channels and gulfs (Clapperton, 1994). The waters within the fjords are influenced by strong tides, large volumes of freshwater runoff, and upwelling of deep-ocean waters as well as steep climatic gradients from north to south (observed in parameters such as temperature, wind intensity and precipitation; …
Maine's Kelp Highway, Catherine Schmitt
Maine's Kelp Highway, Catherine Schmitt
Maine Sea Grant Publications
No abstract provided.