東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Improving Sampling and Monitoring of...

Johnston, Josh.

Linked to FindBook

Google Book

Amazon

博客來

Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains./
Author:	Johnston, Josh.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	118 p.
Notes:	Source: Masters Abstracts International, Volume: 57-01.
Contained By:	Masters Abstracts International57-01(E).
Subject:	Natural resource management. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10275278
ISBN:	9780355394191

Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains.
Johnston, Josh.

Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 118 p.

Source: Masters Abstracts International, Volume: 57-01.

Thesis (M.S.)--Oklahoma State University, 2017.

Abstract: Abstract: Shovelnose Sturgeon is the most abundant sturgeon in North America, but their abundance has declined over the past century. Extirpations have occurred in some areas, and some range-edge populations are now isolated. Isolated populations of Shovelnose Sturgeon in the Arkansas River and Red River basins of the southern Great Plains represent the southwest extent of the species current range. The conservation and management of Shovelnose Sturgeon in this region will hinge on our knowledge of the current distribution, and the development of successful sampling strategies. Therefore, our objectives were to: 1) identify factors related to the current distribution of Shovelnose Sturgeon within the Arkansas River and Red River basins, and 2) synthesize existing sampling methods and strategies for Shovelnose Sturgeon throughout the range, and then test the usefulness of several of those methods for capturing Shovelnose Sturgeon in the Arkansas River, Oklahoma. The distribution of Shovelnose Sturgeon in the Arkansas River basin was primarily related to mean annual discharge, but the Red River basin distribution was mostly related to the extent of available habitat and discharge. Both populations were negatively correlated with elevation as expected by big-river fishes. Our model results showed bias resulting from existing sampling strategies, but provided a path forward for monitoring efforts. We reviewed 100 papers that reported the capture of Shovelnose Sturgeon in 12 rivers using 12 different gears or techniques. Benthic trawls were used most often, but mean catch was highest using stationary gillnets. High uncertainty in the number of sturgeon captured among gears, and studies, and the use of multiple gears in nearly half of the studies, suggested difficulties in sampling sturgeon. We had very limited success capturing Shovelnose Sturgeon in the Arkansas River using gears and methods reported in the reviewed studies. Thus, we developed a hybrid method using trammel nets, while flows were manipulated by water-management agencies. We captured 26 Shovelnose Sturgeon in five days using our hybrid method, the most successful method used. Results from this study will be used to provide insight into future study designs, and advise future study objectives.

ISBN: 9780355394191Subjects--Topical Terms:

589570
Natural resource management.

Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains.
LDR:03294nmm a2200313 4500 001 2158717
005 20180618102543.5
008 190424s2017 ||||||||||||||||| ||eng d
020 $a 9780355394191
035 $a (MiAaPQ)AAI10275278
035 $a (MiAaPQ)okstate:15142
035 $a AAI10275278
040 $a MiAaPQ $c MiAaPQ
100 1 $a Johnston, Josh. $3 3346550
245 1 0 $a Improving Sampling and Monitoring of Shovelnose Sturgeon Scaphirhynchus platorynchus in the Great Plains.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 118 p.
500 $a Source: Masters Abstracts International, Volume: 57-01.
500 $a Adviser: Shannon K. Brewer.
502 $a Thesis (M.S.)--Oklahoma State University, 2017.
520 $a Abstract: Abstract: Shovelnose Sturgeon is the most abundant sturgeon in North America, but their abundance has declined over the past century. Extirpations have occurred in some areas, and some range-edge populations are now isolated. Isolated populations of Shovelnose Sturgeon in the Arkansas River and Red River basins of the southern Great Plains represent the southwest extent of the species current range. The conservation and management of Shovelnose Sturgeon in this region will hinge on our knowledge of the current distribution, and the development of successful sampling strategies. Therefore, our objectives were to: 1) identify factors related to the current distribution of Shovelnose Sturgeon within the Arkansas River and Red River basins, and 2) synthesize existing sampling methods and strategies for Shovelnose Sturgeon throughout the range, and then test the usefulness of several of those methods for capturing Shovelnose Sturgeon in the Arkansas River, Oklahoma. The distribution of Shovelnose Sturgeon in the Arkansas River basin was primarily related to mean annual discharge, but the Red River basin distribution was mostly related to the extent of available habitat and discharge. Both populations were negatively correlated with elevation as expected by big-river fishes. Our model results showed bias resulting from existing sampling strategies, but provided a path forward for monitoring efforts. We reviewed 100 papers that reported the capture of Shovelnose Sturgeon in 12 rivers using 12 different gears or techniques. Benthic trawls were used most often, but mean catch was highest using stationary gillnets. High uncertainty in the number of sturgeon captured among gears, and studies, and the use of multiple gears in nearly half of the studies, suggested difficulties in sampling sturgeon. We had very limited success capturing Shovelnose Sturgeon in the Arkansas River using gears and methods reported in the reviewed studies. Thus, we developed a hybrid method using trammel nets, while flows were manipulated by water-management agencies. We captured 26 Shovelnose Sturgeon in five days using our hybrid method, the most successful method used. Results from this study will be used to provide insight into future study designs, and advise future study objectives.
590 $a School code: 0664.
650 4 $a Natural resource management. $3 589570
650 4 $a Ecology. $3 516476
650 4 $a Aquatic sciences. $3 3174300
690 $a 0528
690 $a 0329
690 $a 0792
710 2 $a Oklahoma State University. $b Natural Resources and Ecology Management. $3 3169778
773 0 $t Masters Abstracts International $g 57-01(E).
790 $a 0664
791 $a M.S.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10275278