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Ontogenetic Behavioral Shifts with Elevated Turbidity in a Cichlid Fish
No full textAnthropogenic activities have increasingly introduced stressors to aquatic ecosystems, with elevated turbidity being a primary stressor of concern. Many aquatic animals rely on vision to survive and reproduce; therefore, they may be impacted by turbidity that disrupts vision by altering the light underwater. We investigated how turbidity influences the development and reproductive behaviors of a widespread haplochromine cichlid, Pseudocrenilabrus multicolor. We conducted a split-brood rearing experiment using10 broods from wild-caught parents that were each divided into either clear or turbid treatment tanks (N = 10 clear and 10 turbid tanks). Videos were recorded of each tank weekly for 20 weeks to test for an ontogenetic shift from foraging and social behaviors to include reproductive behaviors. We predicted that fish reared under turbid conditions would have a delayed switch to reproductive behaviors relative to fish reared under clear conditions. A randomly selected male was tracked to determine how much time the individual was active and performing different behaviors during the observation period. We found a significant relationship between the turbidity treatment and activity time, such that fish in clear tanks exhibited more behaviors than those in turbid tanks overall, and that fish in clear tanks began to display reproductive behaviors significantly earlier (~3 weeks) than those in turbid tanks. This means that fish show a plastic behavioral response to rearing in turbid versus clear waters, with fish in turbid water significantly delayed in the onset of reproduction. For populations experiencing elevated turbidity, this delay could lead to phenological disruption and eventual population extinction.No embargoAcademic Major: Environmental Scienc
Pork Prospect: A Guide to Nurturing Talent for a Sustainable Swine Industry
No full textThis guidebook was developed by the Pork Prospect team at The Ohio State University and the University of Minnesota.National Pork Boar
Influence of Feeding Frequency on Ingestion and Elimination Patterns and Total Plasma Protein of Horses
No full textHorses are natural grazers, typically spending about 10-15 hours per day foraging. The purpose of this study, which is part of a larger study, was to investigate the influence of feedingfrequency on ingestive and eliminative behaviors, as well as total plasma protein (TPP) concentrations in horses. Horses (n = 12) were stratified by age, body condition score (BCS), breed, and sex across two equal sets with a randomized order of treatments. Each treatment was given for 1 week, with 24-hr observations being taken on the 6th day and blood samples being taken on the 7th to allow for acclimation. Water was provided ad libitum, grass hay was provided in slow feed nets and given at 1.55% body weight (BW) on a DM basis, and concentrate was fed at 0.45% BW. The treatments were one (1x), two (2x), and three meals per day (3x), where meals comprised of both forage and commercial pellets split equally across feeding times. Feeding times were 0800, 0800 and 1800, and 0800, 1300, and 1800 h for 1x, 2x, and 3x, respectively. Behaviors were recorded for 24 continuous hours via cameras that were placed so that the entire stall could be viewed. Ingestive and elimination data were extracted from a larger data set of horse behaviors transcribed in Microsoft Excel. Averages for the ingestive behavior of 6 horses with completed 24-hour data sets were extracted from each feeding frequencies for analysis. These values are expressed as a percentage of 24 hr and number of occurrences(frequency). Serial plasma samples were collected from the horses (n = 12) relative to their morning meal on day 7 of each treatment. TPP was determined via refractometer. SAS 9.4 was used to determine the effects of treatment on the duration and frequency of behaviors, as well as the effects of feeding frequency on the TPP within blood. Hay ingestion behavior was significantly influenced by the feeding frequency, with horses on the 2x treatment eating hay more frequently and for a longer duration than when fed 3x (P < 0.05). Additionally, 1x had a lower duration of hay consumption than 3x (P = 0.03). Concentrate intake duration was similaracross treatments, while water intake frequency was the lowest when the horses were fed 3x, compared to 1x and 2x. These results show that feeding frequency primarily affects the pattern of intake, rather than actual nutrient consumption. The TPP increased approximately 30 minutes after the meal, which was followed by a decline of the values back towards baseline from 60-180 minutes. There was no significant effect of feeding frequency on TPP (P = 0.47), but there was a significant effect of time on TPP values (P < 0.0001). Future studies should focus on circadian rhythm patterns, actual consumption of forage and water, and the composition of feces in relation to different feeding frequencies.Ohio State ATI’s Research, Creative & Other Scholarly Activities (RCOSA) grantBuckeye NutritionA one-year embargo was granted for this item.Academic Major: Animal Science
Replaying Marc Anthony: Sonic, Political, and Cultural Resonances
No full textIntroduction: The singer as listener -- "Preciosa" (1998) : diasporican subjectivities and the sounds of itinerancy -- "Hasta que te conocí" (1993) : Latinidad as suffering -- "I need to know" (1999) : singing in English and the sonic struggles for Americanness -- "Aguanile" (2007) : critical listening, mourning, and decolonial healing -- "Vivir mi vida" (2013) : toward a critical salsa romántica and a Global South brownness -- Coda: Listening intimaciesItem embargoed for five year
Cécile Chaminade, "Idylle" - Annotated Excerpts
No full textThis is a supplementary file for an article published in Engaging Students: https://doi.org/10.18061/esm.697
The Moritz Briefing (February 2025)
No full textAn occasional newsletter highlighting recent activities and achievements of the Moritz Faculty
The New "Credential Game": The Disillusionment of Higher Education Promises and the Renarration of Education by Chinese and American Youth on Short-Form Video Platforms
Get PDFThis article explores how Chinese and American youth use short-form video platforms—TikTok, Douyin, and Xiaohongshu(RED)—to narrate disillusionment with the value of higher education. Drawing on 15 user-generated videos (2022–2024), the study adopts a qualitative interpretive approach to examine how young people articulate emotions such as anxiety, irony, and critique in response to credential inflation, employment instability, and shifting life expectations.
Findings reveal cross-cultural convergence in narrative themes such as degree devaluation and career fallback, yet diverging emotional grammars and platform practices. Chinese youth often express frustration through metaphor, self-deprecating humor, and visually templated storytelling, shaped by cultural norms and algorithmic amplification. American youth, by contrast, use ROI logic and direct satire to critique systemic failure, often employing data and commentary as tools of affective protest.
By treating short-form videos as cultural texts and affective publics, the article contributes to research on digital platforms, youth agency, and the global reconfiguration of educational legitimacy. It argues that platform logics and cultural constraints co-produce distinct narrative strategies through which youth render structural uncertainty visible and emotionally intelligible.No embargoAcademic Major: Sociolog
