@article{raabe_hightower_ellis_facendola_2019, title={Evaluation of Fish Passage at a Nature-Like Rock Ramp Fishway on a Large Coastal River}, volume={148}, ISSN={["1548-8659"]}, DOI={10.1002/tafs.10173}, abstractNote={AbstractNature‐like fishways are engineered to be low maintenance, aesthetically pleasing, and able to pass a diversity of species. However, evaluations of nature‐like fishways are limited, especially on large rivers and for anadromous species. Therefore, we studied a nature‐like “rock arch rapids” rock ramp fishway constructed in 2012 at the most downstream of three locks and dams (LDs) on the Cape Fear River, North Carolina. We evaluated upstream fish passage effectiveness and time until passage through the LD‐1 (river kilometer [rkm] 97) fishway and via locking procedures at LD‐2 (rkm 149) and LD‐3 (rkm 186) from March to early July for three consecutive years, 2013–2015. We used stationary acoustic telemetry receivers to evaluate tagged anadromous American Shad Alosa sapidissima and Striped Bass Morone saxatilis and introduced potamodromous Flathead Catfish Pylodictis olivaris. For American Shad, raw upstream passage efficiency at the LD‐1 fishway was similar to that for LD passage via locking procedures in this and previous studies (53–65%), but passage rates were considerably lower for Striped Bass (19–25%). Duration downstream prior to upstream passage averaged 14.7 d for American Shad (SD = 10.2) and 11.6 d for Striped Bass (SD = 17.1). The raw upstream passage efficiency of Flathead Catfish at LD‐1 was variable (13–80%), and certain individuals passed multiple times in a season and spent extended durations downstream prior to passage (mean = 17.4 d; SD = 20.8), potentially foraging. The rock arch rapids LD‐1 fishway passed each species upstream in all years, but anadromous fish passage was delayed for some individuals and the fishway did not meet predetermined success criteria (80% passage efficiency), indicating that design modifications may be necessary to improve overall effectiveness.}, number={4}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Raabe, Joshua K. and Hightower, Joseph E. and Ellis, Timothy A. and Facendola, Joseph J.}, year={2019}, month={Jul}, pages={798–816} }
 @article{raabe_gardner_hightower_2014, title={A spatial capture-recapture model to estimate fish survival and location from linear continuous monitoring arrays}, volume={71}, ISSN={["1205-7533"]}, DOI={10.1139/cjfas-2013-0198}, abstractNote={ We developed a spatial capture–recapture model to evaluate survival and activity centres (i.e., mean locations) of tagged individuals detected along a linear array. Our spatially explicit version of the Cormack–Jolly–Seber model, analyzed using a Bayesian framework, correlates movement between periods and can incorporate environmental or other covariates. We demonstrate the model using 2010 data for anadromous American shad (Alosa sapidissima) tagged with passive integrated transponders (PIT) at a weir near the mouth of a North Carolina river and passively monitored with an upstream array of PIT antennas. The river channel constrained migrations, resulting in linear, one-dimensional encounter histories that included both weir captures and antenna detections. Individual activity centres in a given time period were a function of the individual’s previous estimated location and the river conditions (i.e., gage height). Model results indicate high within-river spawning mortality (mean weekly survival = 0.80) and more extensive movements during elevated river conditions. This model is applicable for any linear array (e.g., rivers, shorelines, and corridors), opening new opportunities to study demographic parameters, movement or migration, and habitat use. }, number={1}, journal={CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES}, author={Raabe, Joshua K. and Gardner, Beth and Hightower, Joseph E.}, year={2014}, month={Jan}, pages={120–130} }
 @article{raabe_bozek_2012, title={Quantity, structure, and habitat selection of natural spawning reefs by walleyes in a north temperate lake: A multiscale analysis}, volume={141}, number={4}, journal={Transactions of the American Fisheries Society}, author={Raabe, J. K. and Bozek, M. A.}, year={2012}, pages={1097–1108} }