Extirpation of the Bridle Shiner (Notropis bifrenatus) from Maryland

2011 ◽  
Vol 18 (2) ◽  
pp. 236-242 ◽  
Author(s):  
Jay V. Kilian ◽  
Richard L. Raesly ◽  
Scott A. Stranko ◽  
Andrew J. Becker ◽  
Eric Durell
Keyword(s):  
Bridle Shiner

Landscape factors predict local extirpation in an imperilled minnow species, the bridle shiner ( Notropis bifrenatus )

2019 ◽  
Vol 29 (8) ◽  
pp. 1227-1237
Author(s):  
Kasey C. Pregler ◽  
Neal Hagstrom ◽  
Eric T. Schultz ◽  
Jason C. Vokoun
Keyword(s):  
Landscape Factors ◽  
Bridle Shiner ◽  
Local Extirpation

Using multistate occupancy estimation to model habitat use in difficult-to-sample watersheds: bridle shiner in a low-gradient swampy stream

2013 ◽  
Vol 70 (10) ◽  
pp. 1429-1437 ◽  
Author(s):  
Timothy Jensen ◽  
Jason C. Vokoun
Keyword(s):  
Habitat Use ◽  
Aquatic Organisms ◽  
Probability Of Detection ◽  
High Abundance ◽  
Occupancy Models ◽  
Imperfect Detection ◽  
Patch Occupancy ◽  
Rare Minnow ◽  
Occupancy Estimation ◽  
Bridle Shiner

We used multiseason, multistate patch occupancy models to investigate habitat use of a regionally rare minnow (bridle shiner, Notropis bifrenatus) within a difficult-to-sample, swampy stream system by defining occupancy states as coarse abundance categories (i.e., none, some, many). Habitat patches were repeatedly subsampled during three sampling periods spanning June to August 2011 using a nonstandard purse-and-lift method with a seine net, as poorly defined shorelines, unconsolidated substrate, and emergent vegetation limited beaching and restricted possible sampling locations. Detection probabilities increased from June to August, likely due to increasing catch per effort as age 0 became vulnerable to the gear, supported by the probability of detection being greater when the species was at high abundance, given occupancy. The probability of a habitat patch being occupied increased with the percent of macrophyte cover and decreased with increasing distance from another occupied patch. Decreasing mean depth showed a weak relationship to high abundance, given a patch was occupied. In summary, the multistate occupancy analytical approach was highly informative for developing quantitative habitat relationships and was seen as an effective framework for evaluating habitat use of aquatic organisms that inhabit environments inherently difficult to sample for which imperfect detection and sampling efficiency are of concern.

Regional population structure of the endangered Bridle Shiner (Notropis bifrenatus)

2018 ◽  
Vol 19 (5) ◽  
pp. 1039-1053 ◽  
Author(s):  
Anthony J. Geneva ◽  
Andrea M. Kreit ◽  
Shane Neiffer ◽  
Susan Tsang ◽  
Richard J. Horwitz
Keyword(s):  
Population Structure ◽  
Regional Population ◽  
Bridle Shiner
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