BEGIN:VCALENDAR VERSION:2.0 X-WR-CALNAME:EventsCalendar PRODID:-//hacksw/handcal//NONSGML v1.0//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York LAST-MODIFIED:20240422T053451Z TZURL:https://www.tzurl.org/zoneinfo-outlook/America/New_York X-LIC-LOCATION:America/New_York BEGIN:DAYLIGHT TZNAME:EDT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 DTSTART:19700308T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:19701101T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT CATEGORIES:College of Arts and Sciences,Thesis/Dissertations DESCRIPTION:Advisor: Dr. Erin Bromage Committee members: Dr. Genevieve Koza k, Dr. Katrina Velle, Dr. Michael Sheriff Abstract: Seasonal changes in te mperature and photoperiod shape immunity across vertebrates, yet their int eractive effects on adaptive immune responses in ectotherms remain poorly understood. In teleost fish, temperature is a well-established regulator o f adaptive immunity, but the contribution of photoperiod—and its interac tion with temperature—remains unclear. This knowledge gap has important implications for predicting immune responses under climate change and opti mizing environmental conditions in aquaculture. Using a fully factorial ex perimental design, rainbow trout (Oncorhynchus mykiss) were acclimated to two temperatures (10°C and 15°C) and three photoperiods (8L:16D, 12L:12D , and 16L:8D) before immunization with a defined antigen. Temperature emer ged as the primary driver of adaptive immunity, with fish held at 15°C ex hibiting faster and stronger B-cell responses, higher serum IgM concentrat ions, and greater antigen-specific antibody titers than fish maintained at 10°C. In contrast, photoperiod exerted more modest and context-dependent effects, with short-day conditions enhancing specific antibody production primarily in immunized fish.\nEvent page: https://www.umassd.edu/events/c ms/7-3-26-regulation-of-b-cell-mediated-adaptive-immunity-in-r.php X-ALT-DESC;FMTTYPE=text/html:

Advisor: Dr. Erin Bromage

Committee members: Dr. Genevieve Kozak\, Dr. Katrina Velle\, Dr. Michae l Sheriff

Abstract:

Seasonal changes in temperature and ph otoperiod shape immunity across vertebrates\, yet their interactive effect s on adaptive immune responses in ectotherms remain poorly understood. In teleost fish\, temperature is a well-established regulator of adaptive imm unity\, but the contribution of photoperiod—and its interaction with tem perature—remains unclear. This knowledge gap has important implications for predicting immune responses under climate change and optimizing enviro nmental conditions in aquaculture.

Using a fully factorial experim ental design\, rainbow trout (Oncorhynchus mykiss) were acclimated to two temperatures (10°C and 15°C) and three photoperiods (8L:16D\, 12L:12D\, and 16L:8D) before immunization with a defined antigen. Temperature emerge d as the primary driver of adaptive immunity\, with fish held at 15°C exh ibiting faster and stronger B-cell responses\, higher serum IgM concentrat ions\, and greater antigen-specific antibody titers than fish maintained a t 10°C. In contrast\, photoperiod exerted more modest and context-depende nt effects\, with short-day conditions enhancing specific antibody product ion primarily in immunized fish.

Event page: https://www.umassd.edu/events/cms/7-3-26-regulation-of-b-cell-m ediated-adaptive-immunity-in-r.php

DTSTAMP:20260617T204248 DTSTART;TZID=America/New_York:20260703T120000 DTEND;TZID=America/New_York:20260703T130000 LOCATION:LIB-314 SUMMARY;LANGUAGE=en-us:Temperature and Photoperiod Regulation of B-Cell Med iated Adaptive Immunity in Rainbow Trout (Oncorhynchus mykiss): Implicatio ns for Aquaculture and Climate Change UID:9fbefe495cab17bfd8c4d333a3c0246f@www.umassd.edu END:VEVENT END:VCALENDAR