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Articles 1 - 30 of 217
Full-Text Articles in Animal 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 …
The Incidence Of Staphylococcus Aureus Mastitis In Maine Dairy Cattle, Morgan Belvin
The Incidence Of Staphylococcus Aureus Mastitis In Maine Dairy Cattle, Morgan Belvin
Honors College
This project investigated the factors surrounding the incidence of Staphylococcus aureus (SA) mastitis in Maine dairy cattle. This type of mastitis is driven by an antibiotic resistant pathogen that is very contagious among cattle, though farmers are often unaware of how common this type of mastitis is and that it could be present in their herds. My hypothesis was that specific farm factors, like milkers performing other tasks during milking, as well as the act of pre-dipping versus not pre-dipping, would explain the increase in SA mastitis. A thirty-seven-question IRB-approved survey was subsequently distributed to farmers in the University of …
Holistic Monitoring Of Maine Sea Lice (Lepeoptheirus Salmonis, Kroyer, 1837) Sensitivities To Therapies: Developing A Novel Assay To Examine Lice Behavior, Kathryn Liberman
Holistic Monitoring Of Maine Sea Lice (Lepeoptheirus Salmonis, Kroyer, 1837) Sensitivities To Therapies: Developing A Novel Assay To Examine Lice Behavior, Kathryn Liberman
Electronic Theses and Dissertations
Sea lice (Lepeoptheirus salmonis) present significant economic and animal welfare challenges to salmon aquaculture globally. Chemical delousing agents are used in many countries, with each nation eventually reporting sea lice developing reduced sensitivities to treatments. While some countries have in place sea lice sensitivity monitoring programs, that is not the case in Maine, USA. Although chemical delousing agents are not currently used in Maine, they have been used in the past and are currently used in neighboring Canadian salmon farms. Different bay management areas (BMAs) were sampled during different seasons to determine if there is a seasonal or spatial component …
Characterizing The Range Shifts Of Two Peromyscus Species In Maine, Molly Bennett
Characterizing The Range Shifts Of Two Peromyscus Species In Maine, Molly Bennett
Honors College
In a changing climate, two species of mice in Maine (Peromyscus maniculatus and Peromyscus leucopus) are currently undergoing range shifts. The objective of my thesis is to determine the historical and current range of each species within the state of Maine. I used two approaches. I assembled ear biopsies collected this summer in Acadia National Park and throughout the state by the Gardner and Levesque labs to genotype the mice as either P. maniculatus or P. leucopus. Additionally, I summarized research that denotes where the two species were historically present around the state. These species are functionally impossible to tell …
Using Stable Isotopes And Diet Analysis To Assess The Potential For Competition And Coexistence Among Coyotes (Canis Latransl, Red Foxes (Vulpes Vulpes), And Gray Foxes (Urocyon Cinereoargenteus) In Maine, Henry M. Masters
Student Scholarship
When two species compete for food, one species typically outcompetes the other. Subordinate species can alleviate costs of competition by reducing diet overlap, promoting coexistence. Non-native coyotes (Canis latrans) and historically native gray foxes (Urocyon cineroargenteus) have expanded their range in Maine and may compete with native red foxes (Vulpes vulpes). To investigate competition, I analyzed stable isotopes and stomach contents to determine if coyotes, red foxes, and gray foxes differed in use of anthropogenic foods and trophic position. I predicted that coyotes utilize anthropogenic foods the least (lowest δ13C), and red foxes utilize …
Density Of Hemigrapsus Sanguineus And Carcinus Maenas In Kettle Cove, Cape Elizabeth, Maine, Valerie Huston, Teresa Martel, Zimzim Mohamed
Density Of Hemigrapsus Sanguineus And Carcinus Maenas In Kettle Cove, Cape Elizabeth, Maine, Valerie Huston, Teresa Martel, Zimzim Mohamed
Thinking Matters Symposium Archive
Our focus for this project is to determine how the population densities of Hemigrapsus sanguineus, Asian shore crab and Carcinus maenas, European green crabs have shifted over a brief period of time. We are comparing data collected on September 17, 2018, to data collected on October 22, 2018. The location where the two sets of data were collected from is Kettle Cove, Cape Elizabeth, Maine. The GPS coordinance was 43°.33.55N70°.13.40N. We discuss what affects the influences of environmental factors such as temperature, salinity, high intertidal versus low intertidal, and percent ascophyllum cover affect have on the population densities of these …
The Androscoggin Bioblitz: A Citizen Science Biological Survey In New Auburn, Maine, Sam H. Matey
The Androscoggin Bioblitz: A Citizen Science Biological Survey In New Auburn, Maine, Sam H. Matey
Thinking Matters Symposium Archive
After several weeks of planning, the Androscoggin Citizen Biological Survey, or “BioBlitz,” took place on August 11th, 2018 in New Auburn, near the confluence of the Little Androscoggin and Androscoggin Rivers. The BioBlitz was a joint project of Maine Conservation Voters and the Androscoggin Land Trust and was conceived of an organized by a USM Environmental Science student interning with Maine Conservation Voters. In this BioBlitz, participants used the citizen science app iNaturalist to photograph wildlife of the river shoreline and add their observations to the app’s database. The Androscoggin BioBlitz project established on the iNaturalist website collected all of …
How Acidic Sediments And Seawater Affect Interactive Effects Of Predation On Survival, Growth, And Recruitment Of Wild And Cultured Soft-Shell Clams, Mya Arenaria L., Along A Tidal Gradient At Two Intertidal Sites In Eastern Maine, Brian F. Beal, William Otto
How Acidic Sediments And Seawater Affect Interactive Effects Of Predation On Survival, Growth, And Recruitment Of Wild And Cultured Soft-Shell Clams, Mya Arenaria L., Along A Tidal Gradient At Two Intertidal Sites In Eastern Maine, Brian F. Beal, William Otto
Miscellaneous Publications
No abstract provided.
Little White House, Lawrence W. Conrad
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Catherine Schmitt
The desire for a sustainable seafood industry that protects the environment and the future of fishing is certainly of interest to consumers, but even here there are conflicting standards, as Catherine Schmitt explores in this article.
Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley
Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley
Electronic Theses and Dissertations
The State of Maine issues an unlimited number of commercial permits for the harvest of White Suckers Catostomus commersonii in Maine’s inland waters. The fishery provides a necessary source of fresh lobster Homarus americanus bait to coastal communities at a time when other bait sources are scarce. The impacts of the increasing number of permits and subsequent numbers of fishermen on the white sucker population is unknown. The Maine Department on Inland Fisheries and Wildlife (MDIFW) has closed a number of waters due to concerns that overfishing and incidental catch of other fish species may occur.
In Chapter 1, we …
Aquaculture In Shared Waters Fact Sheet: Getting To Know Your Water, Dana Morse, Samuel Belknap, Rebecca Clark Uchenna
Aquaculture In Shared Waters Fact Sheet: Getting To Know Your Water, Dana Morse, Samuel Belknap, Rebecca Clark Uchenna
Maine Sea Grant Publications
Aquaculture businesses must operate on sound environmental principles, most especially because marine aquaculture occurs in an open system: the ocean. While all farming activities, on land or at sea, have some degree of environmental interaction, farmers should understand these processes, with best management practices to minimize negative impacts. Successful farms must cope effectively with any changes to the marine system, and an organized system of monitoring and recordkeeping will improve your chances of business success, while maintaining a healthy environment. This fact sheet provides a summary of direct and indirect environmental factors that may affect your marine aquaculture business; more …
Aquaculture In Shared Waters Fact Sheet: The Business Of Aquaculture, Richard Clime
Aquaculture In Shared Waters Fact Sheet: The Business Of Aquaculture, Richard Clime
Maine Sea Grant Publications
Maine has significant potential to benefit from the successful integration of commercial fishing and the seafood business in the form of aquaculture and you have a chance to be involved in the beginning stages of this promising field. Aquaculture can be seen as a way to diversify on-the-water income and can easily complement existing fisheries businesses. There are risks associated with any business, however if managed properly aquaculture can be profitable.
Aquaculture In Shared Waters Fact Sheet: Aquaculture In Maine, Dana Morse, James Crimp, Rebecca Clark Uchenna
Aquaculture In Shared Waters Fact Sheet: Aquaculture In Maine, Dana Morse, James Crimp, Rebecca Clark Uchenna
Maine Sea Grant Publications
This series of “Aquaculture in Shared Waters” fact sheets is intended to help fishermen or others in Maine’s coastal communities interested in starting a small-scale aquaculture business as we move towards achieving this potential in a way that is best for our people and the environment.
Aquaculture In Shared Waters Fact Sheet: Husbandry, Dana Morse, Samuel Belknap, Rebecca Clark Uchenna
Aquaculture In Shared Waters Fact Sheet: Husbandry, Dana Morse, Samuel Belknap, Rebecca Clark Uchenna
Maine Sea Grant Publications
When people think of sea farming, it’s usually the husbandry part that they have in mind: tending the crop, working on the boat, etc. Husbandry is a rewarding part of the aquaculture process, and good husbandry is critical to success. Paired with strong financial management and sales and marketing, husbandry is where the rubber meets the road. Your goal as the farmer is very simple, but difficult to do well: Successful aquaculturists keep their animals and plants at optimum health. Another way to think about this is to keep the crop at minimum stress: low stress equals faster growth, improved …
Remote Sensing For Oyster Aquaculture In Maine, Jordan Snyder
Remote Sensing For Oyster Aquaculture In Maine, Jordan Snyder
Miscellaneous Publications
No abstract provided.
Roof-Top Nesting In A Declining Population Of Herring Gulls (Larus Argentatus) In Portland, Maine, Usa, Noah G. Perlut, David N. Bonter, Julie C. Ellis, Margaret S. Friar
Roof-Top Nesting In A Declining Population Of Herring Gulls (Larus Argentatus) In Portland, Maine, Usa, Noah G. Perlut, David N. Bonter, Julie C. Ellis, Margaret S. Friar
Environmental Studies Faculty Publications
A number of colonial waterbird species have been documented nesting on roof-tops throughout Europe and North America. The most common hypothesis explaining why gulls (Laridae) select roof-tops for nesting has been that population growth rates are higher than territory vacancy rates in traditional (island) habitat, suggesting that roof-tops are a non-preferred habitat. Roof-top habitat may actually be equal to or higher quality than island habitat as anthropogenic food is abundant and lower nest density may lead to lower intraspecific aggression and predation. During 2011–2012, reproductive effort and success was monitored in a regionally declining population of Herring Gulls (Larus …
Recruitment Facilitation And Spatial Pattern Formation In Soft-Bottom Mussel Beds, John A. Commito, Ann E. Commito, Rutherford V. Platt, Benjamin M. Grupe, Wendy Dow Piniak, Natasha J. Gownaris, Kyle A. Reeves, Allison M. Vissichelli
Recruitment Facilitation And Spatial Pattern Formation In Soft-Bottom Mussel Beds, John A. Commito, Ann E. Commito, Rutherford V. Platt, Benjamin M. Grupe, Wendy Dow Piniak, Natasha J. Gownaris, Kyle A. Reeves, Allison M. Vissichelli
Environmental Studies Faculty Publications
Mussels (Mytilus edulis) build massive, spatially complex, biogenic structures that alter the biotic and abiotic environment and provide a variety of ecosystem services. Unlike rocky shores, where mussels can attach to the primary substrate, soft sediments are unsuitable for mussel attachment. We used a simple lattice model, field sampling, and field and laboratory experiments to examine facilitation of recruitment (i.e., preferential larval, juvenile, and adult attachment to mussel biogenic structure) and its role in the development of power-law spatial patterns observed in Maine, USA, soft-bottom mussel beds. The model demonstrated that recruitment facilitation produces power-law spatial structure similar …
Um Marine And Freshwater Sciences Before Wentworth Point, Part 2: (1939), Um Marine Biological Lab At Lamoine, Randy Lackovic
Um Marine And Freshwater Sciences Before Wentworth Point, Part 2: (1939), Um Marine Biological Lab At Lamoine, Randy Lackovic
Darling Marine Center Historical Documents
This is picture album of the University of Maine Marine Biological Laboratory at Lamoine, Maine during the summer session in 1939.
Fish Shack Days, Seamanship Nights, Peter Spectre
Study Targets Striped Bass, Catherine V. Schmitt
Study Targets Striped Bass, Catherine V. Schmitt
Catherine Schmitt
This article in the Bangor Daily News profiles the Sea Grant-funded research of Dr. Joe Zydlewski, who is studying the striped bass population in the Penobscot River. A must read for all striper fans.
Seaweed Beyond Sushi, Catherine V. Schmitt
Alewives: Feast Of The Season, Catherine V. Schmitt
Alewives: Feast Of The Season, Catherine V. Schmitt
Catherine Schmitt
Alewives are sea-run, or diadromous, fish that spend most of their lives in the Atlantic Ocean but return as adults to coastal rivers in spring to spawn in freshwater streams and ponds. This article in Maine Boats, Homes, & Harbors magazine discusses the natural and cultural history of Maine's native runs of alewives and other sea-run fish.
Maine's Oyster Renaissance, Catherine Schmitt
Maine's Oyster Renaissance, Catherine Schmitt
Catherine Schmitt
This feature article in Maine Food & Lifestyle magazine profiles Eric Horne and Valy Steverlynk, proprietors of Flying Point Oysters in Freeport, Maine.
Diver-Harvested Scallops: Precious As Pearls, Catherine V. Schmitt
Diver-Harvested Scallops: Precious As Pearls, Catherine V. Schmitt
Catherine Schmitt
No abstract provided.
Northern Shrimp: A Gala Addition To A Winter's Night, Catherine V. Schmitt
Northern Shrimp: A Gala Addition To A Winter's Night, Catherine V. Schmitt
Catherine Schmitt
The arrival of the holidays heralds the start of shrimp season in northern New England. This delicacy is cause for celebration both locally and around the world, where many people look forward to fresh Maine shrimp for holiday meals.
Maine Oyster Cult, Catherine V. Schmitt
Maine Oyster Cult, Catherine V. Schmitt
Catherine Schmitt
Read about the natural history of Maine's oyster populations, and how the University of Maine and independent aquaculturists have brought these native shellfish back to coastal waters--and tables--in Maine. This story appeared in the March 2008 issue of Maine Boats, Homes, & Harbors magazine.
The Monkfish: So Much More Than A Pretty Face, Catherine V. Schmitt
The Monkfish: So Much More Than A Pretty Face, Catherine V. Schmitt
Catherine Schmitt
No abstract provided.
Transference, Chris Crittenden
Gut Knife, Chris Crittenden