Juvenile River Herring Otolith Extraction and Mounting

This research is investigating differential growth patterns among groups of anadromous juvenile river herring. Students will participate in laboratory extraction of fish ear bones (otoliths) that will be used to determine age, hatch dates, and growth rates of young of the year river herring captured from lakes and coves in Massachusetts, Connecticut and Maine. Specifically, students will remove otoliths from juvenile herring (ranging from <10mm to >90mm) under a microscope and mount them onto slides for further analysis. 

Name of research group, project, or lab
Jordaan Lab
Why participate in this opportunity?

Provides a hands-on learning experience in an active lab setting working directly with samples to learn extraction, mounting, and aging techniques of otoliths while contributing data to numerous research projects.  Techniques and experiences learned while working with the lab can be applied to various other projects throughout the participant's career, and may be great resume builders.  Opportunities for independent research projects may also be available for motivated candidates. 

Logistics Information:
Subject Category
Animal Physiology
Biology
Ecology
Environmental Science
Natural Resources Conservation
Student ranks applicable
Freshman
Sophomore
Junior
Senior
Student qualifications

Attention to detail. Task-specific training will be provided.

Time commitment
1-4 h/wk
5-7 h/wk
Position Types and Compensation
Research - Independent Study or Research Assistant credit
Research - Paid, Work-Study Required
Number of openings
12
Techniques learned

Fish otolith extraction, mounting, and aging. 

Project start
9/2/2025
Contact Information:
Mentors
rpcusick@umass.edu
Graduate Student
rdorroh@umass.edu
Graduate Student
abigailblair@umass.edu
Graduate Student
Name of project director or principal investigator
Dr. Adrian Jordaan
Email address of project director or principal investigator
ajordaan@umass.edu
12 sp. | 10 appl.
Hours
1-4 h/wk (+1)
1-4 h/wk5-7 h/wk
Project categories
Environmental Science (+4)
Animal PhysiologyBiologyEcologyEnvironmental ScienceNatural Resources Conservation