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Humpback chub spring and fall capture histories in the Little Colorado River, 2009-2019

Data for journal manuscript: Partial migration and spawning movements of humpback chub in the Little Colorado River are better understood using data from autonomous PIT tag antennas


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Dzul, M.C., 2021, Humpback chub spring and fall capture histories in the Little Colorado River, 2009-2019: U.S. Geological Survey data release,


These data were compiled to examine rates of skipped migration in adult humpback chub that spawn in the Little Colorado River (LCR). These data include mark-recapture information from the lower 13.56 kilometers of the LCR and from the Colorado River, from river kilometer 105.5-145.7 downstream of Glen Canyon Dam. Data also include detections from a multiplexer array (MUX) that is located in the LCR and from submersible PIT tag antennas that are deployed in parts of the Colorado River. These data are capture histories that include both spring and fall sampling events that occurred between spring 2009 and spring 2019. Capture histories can include information about size (small adults being 200-249mm total length and large adult being [...]


Point of Contact :
Maria C Dzul
Originator :
Maria C Dzul
Metadata Contact :
Maria C Dzul
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Southwest Biological Science Center
USGS Mission Area :

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“Little Colorado RIver”
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Humpback chub migration from the main stem Colorado River into the LCR occurs each spring and is likely associated with spawning. This data set was used to fit a model that describes how survival, growth, and movement rates differ according to fish size and sex, and also whether there are energetics trade-offs (e.g., fish that spawn have lower growth or survival). These data were also used to explore yearly variability in survival and growth among fish. We hope that learning more about life history variability and energetic tradeoffs will help biologists and managers learn more about how and why humpback chub are able to persist in a highly modified Colorado River.


The author(s) of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.

Additional Information


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DOI doi:10.5066/P95KA0XI

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