2331 research outputs found
Sort by
Behavioral Responses of the Northern Crayfish (Faxonius virilis) to Physical Presence and Chemical Cue from the Invasive Rusty Crayfish (F. rusticus)
No full textInvasive species have the potential to extirpate native species and disrupt ecosystems. The rusty crayfish (Faxonius rusticus) has invaded many freshwater environments outside its native range. Compared to native crayfish, rusty crayfish are typically larger, grow and reproduce at an accelerated rate, are more effective at evading predators, and dominate in contests for food and shelter. Research on the different mechanisms by which rusty crayfish affect native crayfish may help us anticipate or interpret the impacts of invasions in our region. We investigated how non-native rusty crayfish affect the behavior of northern crayfish (Faxonius virilis), a common resident species in New Hampshire. We quantified the movement of northern crayfish when exposed to either the physical presence of rusty crayfish or their chemical cues at three different water temperatures. Northern crayfish reduced their movement speed in the presence of the chemical cue from rusty crayfish at all three temperatures, and they increased their overall distance moved in the presence of both the visual and chemical cue (compared to the control) at the highest temperature. These results suggest that an important component of the invasion mechanism for rusty crayfish may be altering the behavioral dynamics of native crayfish
Effect of Inhibition of Protein Synthesis and Phosphorylation on Circatidal Mechanism of Limulus polyphemus
No full textCajun Music’s Influence on Cajun Culture
No full textThis research article will delve into the influence of Cajun music on Cajun culture in present day Louisiana. This involves looking to the past to see what Cajuns have gone through, researching the origin of Cajuns, the distinctive elements of Cajun music, notable aspects of Cajun culture, common Cajun stereotypes, with the goal of finding the signification of Cajun music in their culture. The purpose of this paper is to shine more of a light on the importance of Cajun music and the hardships Cajuns have gone through as a culture, as many New Englanders may not know much about this southern subculture
The Expressions of HSP70 Protein in Eastern Brook Trout (Salvelinus fontinalis) Exposing to Seasonal Water Temperature and Conductivity
No full textPopulations of eastern brook trout (Salvelinus fontinalis) have been significantly reduced due to climate change and historical human activities. Yet, knowledge about individual fish response to different stresses at a molecular level is limited. We documented the response of brook trout to a set of potential stressors by measuring the level of heat shock protein 70 (HSP70) using Western Blotting. Over three sampling events in June, July, and September of 2018, we collected non-lethal biopsies of gill filaments from a total of 75 fish across three tributaries (GR3, GR4, and GR5) in the Beebe River watershed (Campton, NH). We used non-linear regression to test the general relationship between HSP70 and temperature (1-, 3-, 5-, and 7-day mean temperature). Multiple linear regression and linear mixed model analyses were employed to investigate the roles of exposure time to different temperature ranges, month of collection, stream depth, location of fish capture, mass, and total length on the variation in HPS70 expression. We found that HSP70 expression was best quadratically dependent on 7-day mean temperature (R2-adjusted = 56.70%, p\u3c0.00001). Furthermore, larger fish (by weight) tended to have lower HSP70 expression (p=0.004). This study will contribute to the development of future stress-induced biomarker monitor
Study of Migrant Workers
No full textThe way that media and literature have portrayed migrant workers in the United States has resulted in an image characterized by negative traits such as laziness, poverty, and criminality across our country. The purpose of this research is to present real life stories of migrant workers and compare them to what the media and literature have portrayed in the past and present during waves of migration to the United States. Our research will entail interviewing current migrant workers and their employers in Contoocook, NH, reading various media and literature sources for stories of migrants, and researching public policies such as the Bracero Program and Operation Bootstrap. The image of migrant workers is important and should be better portrayed because migrant workers can be found throughout the country and they form a vital part of our economic system. Learning how their image has evolved in media and literature is crucial to understanding who they are. With this project we aspire to learn how migrant workers reach the US and their hiring process. We also wish to educate our audience on the history and importance of migrant workers and how they have been and continue to be depicted in literature and media
The Effects of Biomedical Bleeding Stressors on the Heart Rate of the American Horseshoe Crab, Limulus polyphemus
No full text
Comparing the Experiences of Plymouth State University\u27s Global Community
No full textThe United States hosts the largest number of international students globally, demonstrating how globalized the world has become. Plymouth State University is among the thousands of colleges that annually take on students from the global community. However, first and second-generation immigrant students are not considered international, though they may share commonalities. Through student interviews, this research aims to identify the experiences of what it means to be an international student, an exchange student, and a first or second-generation immigrant student at Plymouth State University. The information derived will create a lens of empathy for the Plymouth community, and provide useful information on how Plymouth State University can better serve and celebrate the global community on campus