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Direct and Molecular Observation of Movement and Reproduction by Candy Darter, Etheostoma osburni, an Endangered Benthic Stream Fish in Virginia, USA. FISHES 2022. [DOI: 10.3390/fishes7010030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Direct and indirect measures of individual movement provide valuable knowledge regarding a species’ resiliency to environmental change. Information on patterns of movement can inform species management and conservation but is lacking for many imperiled fishes. The Candy Darter, Etheostoma osburni, is an endangered stream fish with a dramatically reduced distribution in Virginia in the eastern United States, now known from only four isolated populations. We used visual implant elastomer tags and microsatellite DNA markers to directly describe movement patterns in two populations. Parentage analysis based on parent-offspring pairs was used to infer movement patterns of young-of-year and age-1 individuals, as well as the reproductive contribution of certain adults. Direct measurements of movement distances were generally similar between methods, but microsatellite markers revealed greater distances moved, commensurate with greater spatial frames sampled. Parent-offspring pairs were found throughout the species’ 18.8-km distribution in Stony Creek, while most parent-offspring pairs were in 2 km of the 4.25-km distribution in Laurel Creek. Sibship reconstruction allowed us to characterize the mating system and number of spawning years for adults. Our results provide the first measures of movement patterns of Candy Darter as well as the spatial distribution of parent-offspring pairs, which may be useful for selecting collection sites in source populations to be used for translocation or reintroductions. Our results highlight the importance of documenting species movement patterns and spatial distributions of related individuals as steps toward understanding population dynamics and informing translocation strategies. We also demonstrate that the reproductive longevity of this species is greater than previously described, which may be the case for other small stream fishes.
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Ruble CL, Sterling KA, Warren ML. Captive Propagation and Early Life History of the Yazoo Darter (Etheostoma raneyi). SOUTHEAST NAT 2019. [DOI: 10.1656/058.018.0402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Crystal L. Ruble
- Conservation Fisheries, Inc., 3424 Division Street, Knoxville, TN 37919
| | - Ken A. Sterling
- USDA Forest Service, Southern Research Station, Stream Ecology Laboratory, 1000 Front Street, Oxford, MS 38655
| | - Melvin L. Warren
- USDA Forest Service, Southern Research Station, Stream Ecology Laboratory, 1000 Front Street, Oxford, MS 38655
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Honick AS, Zimmerman BJ, Stauffer JR, Argent DG, Porter BA. Expanded Distributions of Three Etheostoma Darters (Subgenus Nothonotus) within the Upper Ohio River Watershed. Northeast Nat (Steuben) 2017. [DOI: 10.1656/045.024.0214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Anthony S. Honick
- Bayer School of Natural and Environmental Sciences, Duquesne University, Pittsburgh, PA 15282
| | - Brian J. Zimmerman
- School of Environment and Natural Resources, Ohio State University Museum of Biodiversity, Columbus, OH 43212
| | - Jay R. Stauffer
- Ecosystem Science and Management, The Pennsylvania State University, University Park, PA 16802
| | - David G. Argent
- Department of Biological and Environmental Sciences, California University of Pennsylvania, California, PA 15419
| | - Brady A. Porter
- Bayer School of Natural and Environmental Sciences, Duquesne University, Pittsburgh, PA 15282
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