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Reductions in range-wide distributio...

Pasbrig, Chelsey Alline.

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Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond./
作者:	Pasbrig, Chelsey Alline.
面頁冊數:	159 p.
附註:	Source: Masters Abstracts International, Volume: 48-05, page: 2856.
Contained By:	Masters Abstracts International48-05.
標題:	Agriculture, Fisheries and Aquaculture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1475661
ISBN:	9781109751413

Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond.
Pasbrig, Chelsey Alline.

Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond. - 159 p.

Source: Masters Abstracts International, Volume: 48-05, page: 2856.

Thesis (M.S.)--University of Nebraska at Kearney, 2010.

The plains topminnow, Fundulus sciadicus, was once distributed from the Mississippi River to the Rocky Mountains, north to South Dakota and as far south as Oklahoma. This study reports recent sampling efforts of historic locations across their geographic range. Of the 927 historic records of plains topminnow, 667 historic locations were visited. Topminnow remain at 189 sites (a 71.1% reduction). Additional sampling of 1,119 locations with favorable habitat for plains topminnow located 202 additional locations currently supporting topminnow.

ISBN: 9781109751413Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond.
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245 1 0 $a Reductions in range-wide distribution of plains topminnow, Fundulus sciadicus, and production of a broodstock pond.
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500 $a Source: Masters Abstracts International, Volume: 48-05, page: 2856.
500 $a Adviser: William W. Hoback.
502 $a Thesis (M.S.)--University of Nebraska at Kearney, 2010.
520 $a The plains topminnow, Fundulus sciadicus, was once distributed from the Mississippi River to the Rocky Mountains, north to South Dakota and as far south as Oklahoma. This study reports recent sampling efforts of historic locations across their geographic range. Of the 927 historic records of plains topminnow, 667 historic locations were visited. Topminnow remain at 189 sites (a 71.1% reduction). Additional sampling of 1,119 locations with favorable habitat for plains topminnow located 202 additional locations currently supporting topminnow.
520 $a With plains topminnow eliminated from a large portion of their historic range, reintroductions of plains topminnow may be necessary to re-establish populations at historic sites. A population of broodstock plains topminnow was established and monitored between March and October during 2008 and 2009. Stocking of 123 plains topminnow during April and October 2008 produced an estimated population of adult plains topminnows of 9,844 +/- 1,698 with an estimated biomass of 27.7 kg/ha in August 2009.
520 $a The wide introduction and spread of the western mosquitofish, Gambusia affinis, has been linked to the decline of small fishes in lower latitudes (30°N-37°N latitude). In the laboratory, mortality in simulated winter water temperatures for five populations of mosquitofish and one population of native plains topminnow was examined. Mosquitofish survival of cold water temperatures ranged from 45% to 0%, while survival of plains topminnows exposed to winter water temperatures was 77.5%. Mosquitofish appear capable of overwintering in Nebraska allowing permanent populations capable of range expansion and potential negative impacts to native species in latitudes above 40°.
520 $a Based on reductions in range of plains topminnow and enhanced survival of western mosquitofish, conservation actions including production of broodstock should be implemented. In addition, the global status of the species should be reexamined.
590 $a School code: 0520.
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650 4 $a Biology, Limnology. $3 1018638
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790 1 0 $a Hoback, William W., $e advisor
790 1 0 $a Hoback, William W. $e committee member
790 1 0 $a Schonebeck, Casey $e committee member
790 1 0 $a Koupal, Keith $e committee member
790 1 0 $a Schainost, Steve $e committee member
790 $a 0520
791 $a M.S.
792 $a 2010
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