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CRI Special Seminar with Dr. Roger A. Rulifson (East Carolina University)

Author: Jenn Meade

Posted on Oct 18, 2019

Category: News and Notices

Dr. Roger A. Rulifson, East Carolina University, will deliver a special seminar entitled, 'Identifying Nursery Critical Habitat for Striped Bass in a Coastal Watershed Using Biogeochemistry' on Monday, Oct. 21 at 3 p.m. in Loring Bailey Hall, 27 (The Common Room).

Dr. Rulifson is a THCAS Distinguished Professor of Biology, ECU Distinguished Research Professor at the East Carolina University, Greenville North Carolina USA.

Previous research on the anadromous Striped Bass, Morone saxatilis, in the Shubenacadie watershed, Nova Scotia, documented the presence of differences in dorsal coloration indicative of recent habitat residency: black-backed adults overwintering in Shubenacadie Grand Lake and migrating downstream in the spring, and green-backed adults migrating upstream from the ocean. Both colormorphs were believed to spawn at the same location in the Stewiacke River, and within the same timeframe of May into early June. But without genetic data to determine river of origin, are there other tools available to determine critical juvenile freshwater and brackish water habitats of Striped Bass in coastal watersheds? We examined the otolith chemistries of developing embryos, juveniles, and adults in concert with water chemistries of known nursery areas in Albemarle Sound, North Carolina, to understand which areas are most critical for survival to adulthood. Results were predictive, not only for identifying specific nursery habitats, but also for identifying the maternal origins of the adult fish participating in the annual spawning runs. This information is important to resource managers for habitat protection and setting harvest quotas for North Carolina.

For more information contact Allen Curry, UNB Biology (

Category: News and Notices

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