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Evaluating Sport Fish Use of Natural and Introduced Habitats in Nebraska Reservoirs.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Evaluating Sport Fish Use of Natural and Introduced Habitats in Nebraska Reservoirs./
Author:	Schriener, William M.
Description:	1 online resource (86 pages)
Notes:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
Subject:	Biology. -
Online resource:	click for full text (PQDT)
ISBN:	9798379695354

Evaluating Sport Fish Use of Natural and Introduced Habitats in Nebraska Reservoirs.
Schriener, William M.

Evaluating Sport Fish Use of Natural and Introduced Habitats in Nebraska Reservoirs. - 1 online resource (86 pages)

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--University of Nebraska at Kearney, 2023.

Includes bibliographical references

Reservoirs are often limited in habitat, and many habitats can be lost through natural decomposition, sedimentation, and as reservoir water elevations changes as reservoirs age. Aquatic managers recognize the importance of maintaining habitat in reservoirs and habitat augmentation projects are common. However, this study was designed to improve understanding surrounding the placement and use of added structures by exploring the following objectives: 1) Quantify the availability of different habitats and how that availability changes under different reservoir elevations; 2) Compare fish assemblages around different habitats; 3) Compare sportfish relative abundance and total lengths between habitats; of Harlan County Reservoir, and 4) Compare fish taxa present between introduced cedar brush piles and Georgia cubes to control sites at Harlan County Reservoir, East Twin Lake, and Red Cedar Reservoir) over three seasons . I was able to estimate that habitat covered 7% of Gremlin Cove in Harlan County Reservoir. Electrofishing efforts over habitat resulted in 22 taxa captured, and a Chi-square test of homogeneity for specific sport fish species showed unequal distributions around habitats (p ≤ 0.03), suggesting individual species use habitats differently. Finally, during comparison of introduced habitat and control sites, a generalized linear mixed model determined Bluegill was the only species to demonstrate a difference in abundance over different habitats. Fish counts were higher in fall compared to the other seasons. The results of this work suggest that determination of existing habitat distribution can be important before initiating a habitat augmentation project. Additionally, evaluation efforts should consider a multitude of fish taxa and encompass longer timeframes to conduct these evaluations as differences in use can be noted for fish species and temporally by season.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379695354Subjects--Topical Terms:

599573
Biology.
Subjects--Index Terms:

FisheriesIndex Terms--Genre/Form:

554714
Electronic books.

Evaluating Sport Fish Use of Natural and Introduced Habitats in Nebraska Reservoirs.
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502 $a Thesis (M.S.)--University of Nebraska at Kearney, 2023.
504 $a Includes bibliographical references
520 $a Reservoirs are often limited in habitat, and many habitats can be lost through natural decomposition, sedimentation, and as reservoir water elevations changes as reservoirs age. Aquatic managers recognize the importance of maintaining habitat in reservoirs and habitat augmentation projects are common. However, this study was designed to improve understanding surrounding the placement and use of added structures by exploring the following objectives: 1) Quantify the availability of different habitats and how that availability changes under different reservoir elevations; 2) Compare fish assemblages around different habitats; 3) Compare sportfish relative abundance and total lengths between habitats; of Harlan County Reservoir, and 4) Compare fish taxa present between introduced cedar brush piles and Georgia cubes to control sites at Harlan County Reservoir, East Twin Lake, and Red Cedar Reservoir) over three seasons . I was able to estimate that habitat covered 7% of Gremlin Cove in Harlan County Reservoir. Electrofishing efforts over habitat resulted in 22 taxa captured, and a Chi-square test of homogeneity for specific sport fish species showed unequal distributions around habitats (p ≤ 0.03), suggesting individual species use habitats differently. Finally, during comparison of introduced habitat and control sites, a generalized linear mixed model determined Bluegill was the only species to demonstrate a difference in abundance over different habitats. Fish counts were higher in fall compared to the other seasons. The results of this work suggest that determination of existing habitat distribution can be important before initiating a habitat augmentation project. Additionally, evaluation efforts should consider a multitude of fish taxa and encompass longer timeframes to conduct these evaluations as differences in use can be noted for fish species and temporally by season.
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650 4 $a Aquatic sciences. $3 1178821
650 4 $a Water resources management. $3 1178858
653 $a Fisheries
653 $a Habitat
653 $a Lakes
653 $a Management
653 $a Reservoirs
653 $a Sport fish
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