Distribution of potential spawning habitat for sturgeon in the Lower Missouri River, 2003-06

Laustrup, Mark S.; Jacobson, Robert B.; Simpkins, Darin G.

doi:10.3133/ofr20071192

Cited by 8 publications

(9 citation statements)

References 17 publications

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“…comm.). Additionally, URR and PLT are similar in habitat composition and contain numerous areas with firm substratum, rapid water velocity and shallow water (Laustrap et al , 2007; Peters & Parham, 2008). Reports by Rupprecht & Jahn (1980), Moss et al (1983) and Vokoun et al (2003) suggest that habitats possessing the aforementioned characteristics are suitable for C. elongatus spawning.…”

Section: Discussionmentioning

confidence: 99%

Seasonal resource selection by blue suckers Cycleptus elongatus

Neely

Pegg

Mestl

2010

Journal of Fish Biology

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Telemetry data were used to quantify seasonal resource selection and rank-preferred habitat types for blue suckers Cycleptus elongatus in the middle Missouri River and its tributaries, Iowa, Nebraska, South Dakota, U.S.A. Habitat diversity required by C. elongatus to complete its annual lifehistory cycle was evident by interseasonal variation in habitat selection. Tributaries and unchannelized portions of the middle Missouri River system were selected during the inferred spawning season (spring), habitats along shorelines in the channelized middle Missouri River were selected for postspawning (summer) and areas of reduced current were generally selected for the period preceding spawning (autumn). This study provides insight into mature C. elongatus behaviour throughout its annual life cycle. Furthermore, these results document the interseasonal variability in habitat selection of C. elongatus and highlight the need for development of habitat selection models for other imperilled fish species in aquatic systems affected by anthropogenic developments.

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Section: Discussionmentioning

confidence: 99%

Seasonal resource selection by blue suckers Cycleptus elongatus

Neely

Pegg

Mestl

2010

Journal of Fish Biology

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“…In contrast, sand bar habitats represent the most natural habitats remaining in the lower Missouri River. They are dominated by a sand substrate and gradient <10°, which differ from engineered dike structures where the gradient ranges from 20° to 40° with more variable substrate composition (Jacobson et al , ; Laustrup et al , ). Channel sand bars were also more susceptible to alteration by even moderate flows than dike structures (Jacobson et al , ).…”

Section: Methodsmentioning

confidence: 99%

Fish Assemblages at Engineered and Natural Channel Structures in the Lower Missouri River: Implications for Modified Dike Structures

Schloesser

Paukert

Doyle

et al. 2011

River Research & Apps

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Large rivers throughout the world have been modified by using dike structures to divert water flows to deepwater habitats to maintain navigation channels. These modifications have been implicated in the decline in habitat diversity and native fishes. However, dike structures have been modified in the Missouri River USA to increase habitat diversity to aid in the recovery of native fishes. We compared species occupancy and fish community composition at natural sandbars and at notched and un‐notched rock dikes along the lower Missouri River to determine if notching dikes increases species diversity or occupancy of native fishes. Fish were collected using gill nets, trammel nets, otter trawls, and mini fyke nets throughout the lower 1212 river km of the Missouri River USA from 2003 to 2006. Few differences in species richness and diversity were evident among engineered dike structures and natural sandbars. Notching a dike structure had no effect on proportional abundance of fluvial dependents, fluvial specialists, and macrohabitat generalists. Occupancy at notched dikes increased for two species but did not differ for 17 other species (81%). Our results suggest that dike structures may provide suitable habitats for fluvial species compared with channel sand bars, but dike notching did not increase abundance or occupancy of most Missouri River fishes. Published in 2011 by John Wiley & Sons, Ltd.

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“…() and Laustrup et al . (), respectively, and the mapping of substrates and benthic morphology by Anima et al . () and Manley and Singer ().…”

Section: Introductionmentioning

confidence: 99%

Using Low‐cost Side‐scan Sonar for Benthic Mapping Throughout the Lower Flint River, Georgia, Usa

Kaeser

Litts

Tracy³

2012

River Research & Apps

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An efficient, low-cost approach for mapping habitat features in navigable streams is needed to support the research and management of aquatic ecosystems at the landscape level. We developed a method that uses high-resolution (455 kHz) side-scan sonar imagery obtained with the inexpensive (~$2000) Humminbird W Side Imaging system and ArcGIS to produce sonar image maps (SIMs) used to interpret and map habitat features such as substrates and large woody debris, in addition to continuously recording depth along the survey route. This method was recently demonstrated and evaluated in several small streams in southwestern Georgia (30-50 m width, 40 km mapped). To evaluate the feasibility of this method for mapping substrate and depth in larger rivers and over greater spatial extents, we conducted a sonar survey and generated SIMs for 124 km of the lower Flint River (85-140 m width). We interpreted the SIMs to digitize and classify substrate and bank boundaries. To assess classification accuracy, we visually inspected substrate at randomly assigned reference locations. A comparison of reference and map data revealed an overall classification accuracy of 84%. These results were consistent with previous findings and indicate that low-cost side-scan sonar is also an effective mapping tool for larger rivers. The sonar survey did, however, result in more missing and unsure substrate data and a lower map accuracy for fine-textured substrates than previously achieved when mapping smaller streams. We found a strong, positive relationship (r 2 = 0.89) between the sonar range and the proportion of unsure substrate in the map, suggesting that a multi-pass, parallel-transect sonar survey could be used to maintain high-image resolution when stream widths exceed 100 m and/or obstructions, such as islands, are encountered. Applications for sonar-based habitat maps are widespread and numerous. The ability to produce these maps efficiently at low-cost is within the grasp of researchers and managers alike.

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Distribution of potential spawning habitat for sturgeon in the Lower Missouri River, 2003-06

Cited by 8 publications

References 17 publications

Seasonal resource selection by blue suckers Cycleptus elongatus

Seasonal resource selection by blue suckers Cycleptus elongatus

Fish Assemblages at Engineered and Natural Channel Structures in the Lower Missouri River: Implications for Modified Dike Structures

Using Low‐cost Side‐scan Sonar for Benthic Mapping Throughout the Lower Flint River, Georgia, Usa

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