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Quantification of Alligator Gar Recruitment Dynamics Using a River-Stage Specific Floodplain Inundation Model

Quantification of Alligator Gar Recruitment Dynamics Using a River-Stage Specific Floodplain Inundation Model

Dates

Last Update
2017-08-10 17:10:32
Start Date
2015-05
End Date
2018-06
Start Date
2015-06-01 05:00:00
End Date
2018-05-31 05:00:00

Citation

LCC Network Data Steward(Point of Contact), Jennifer Jensen(Co-Investigator), Thomas B. Hardy(Co-Investigator), Kirk O. Winemiller(Co-Investigator), Allison A. Pease(Co-Investigator), Gulf Coast Prairie Landscape Conservation Cooperative(administrator), David J. Hoeinghaus(Principal Investigator), 2017-08-10(lastUpdate), 2015-05(Start), 2018-06(End), Quantification of Alligator Gar Recruitment Dynamics Using a River-Stage Specific Floodplain Inundation Model, https://www.fws.gov/science/catalog, https://www.sciencebase.gov/catalog/item/55c3ca62e4b033ef52106c6f

Summary

Alligator Gar, Atractosteus spatula, is an iconic species native to lowland floodplain river systems where they play an important role as top predators and by linking landscapes through their movement. Alligator Gar is also an important native fisheries species in the Trinity River. Disruption of river-floodplain connectivity is implicated in declining populations of Alligator Gar across much of its range. Successful management and conservation of Alligator Gar populations will be aided by an understanding of the relationship between flow and recruitment, particularly the availability and suitability of off-channel habitats utilized by this species for reproduction.

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Attached Files

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md_metadata.json 318.04 KB application/json
Hoeinghaus et al 2017 AFS GCP LCC project overview poster.pdf 1.19 MB application/pdf
Quantification of Alligator Gar Recruitment Dynamics Using a River-Stage Specific Floodplain Inundation Model.mp4 161.16 MB video/mp4

Purpose

This project will identify potential Alligator Gar spawning areas in floodplain reaches of the lower Trinity River and model the amount and quality of inundated floodplain habitat during the spawning season to Alligator Gar year-class strength (i.e. recruitment). The model will be validated through actual quantification of floodplain inundation using remote imagery and field observations as well as field collection of young-of-year Alligator Gar following suitable flood pulses.

Project Extension

projectStatusIn Progress

Budget Extension

annualBudgets
year2014
fundingSources
amount199973.0
recipientUniversity of North Texas
sourceU.S. Fish and Wildlife Service
totalFunds199973.0
year2015
fundingSources
amount74113.0
recipientUniversity of North Texas
sourceUniversity of North Texas
matchingtrue
totalFunds74113.0
year2015
fundingSources
amount44809.0
recipientTexas State University
sourceTexas State University
matchingtrue
totalFunds44809.0
year2015
fundingSources
amount2423.0
recipientTexas A&M University
sourceTexas A&M University
matchingtrue
totalFunds2423.0
year2015
fundingSources
amount9862.0
recipientTexas Tech University
sourceTexas Tech University
matchingtrue
totalFunds9862.0
totalFunds331180.0

Map

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ScienceBase WMS

Communities

  • Gulf Coast Prairie Landscape Conservation Cooperative
  • LC MAP - Landscape Conservation Management and Analysis Portal

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generated using ADIwg mdTranslator 2.17.1

Additional Information

Identifiers

Type Scheme Key
adiwg adiwg GCPLCC 2015-04

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