Raised pale cysts were observed on Blue Ridge Sculpin Cottus caeruleomentum during stream fish community surveys in Catoctin Mountain Park, Maryland. When examined histologically, preserved sculpin exhibited multiple cysts containing spherical endospores with a refractile central body characteristic of Dermocystidium spp. Cysts were not observed on the gills or internally. The portion of the watershed in which affected sculpin were observed contained lower than expected numbers of sculpin, raising concerns about….Read more
The American Fisheries Society (AFS) is the world’s oldest and largest organization dedicated to strengthening the fisheries profession, advancing fisheries science, and conserving fisheries resources.
Journal of Aquatic Animal Health
Are We Preparing the Next Generation of Fisheries Professionals to Succeed in their Careers?: A Survey of AFS Members
Natural resource professionals have frequently criticized universities for poorly preparing graduates to succeed in their jobs. We surveyed members of the American Fisheries Society to determine which job skills and knowledge of academic topics employers, students, and university faculty members deemed most important to early-career success of fisheries professionals. Respondents also rated proficiency of recently hired, entry-level professionals (employers) on how well their programs prepared…Read more
This site is a companion for the AFS book Standard Methods for Sampling North American Freshwater Fishes. Increasingly biologists are adopting these methods so they will be able to compare their data to those collected by other organizations, in other regions, or across time. Read more information about standard sampling in general and how these techniques were developed; comment on specific techniques so those working on future editions can incorporate your ideas; compare your fish data to North American, ecoregion, state, and provincial averages and percentiles; and catch up on the latest research on the validation or “ground truthing” of specific standard methods.