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The comparative growth and survival ...

Martens, Matthew T.

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The comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experiments.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experiments./
作者:	Martens, Matthew T.
面頁冊數:	222 p.
附註:	Source: Masters Abstracts International, Volume: 52-04.
Contained By:	Masters Abstracts International52-04(E).
標題:	Aquatic sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR95825
ISBN:	9780494958254

The comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experiments.
Martens, Matthew T.

The comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experiments. - 222 p.

Source: Masters Abstracts International, Volume: 52-04.

Thesis (M.Sc.)--University of Manitoba (Canada), 2013.

This thesis investigates the comparative growth and mortality of a naturalized (wild) and domestic (aquaculture) strain of rainbow trout (Oncorhynchus mykiss) common to Lake Huron. I first conducted a laboratory-based experiment, comparing the growth rates of the two strains. Under optimal and competition treatments, the domestic strain achieved a body weight &sim;2x that of wild conspecifics. Next, I conducted a replicated, whole-ecosystem study comparing the same strains. Both strains experienced equally low survival and the domestic strain segregated into a fast-growing group, (&sim;3x growth relative to the wild strain), and a slow-growing group that had a lower growth rate than wild trout. A high growth rate for fast-growing domestic trout was achieved by a reliance on high energy prey as well as through low metabolic costs relative to wild strains. Together, these results demonstrate that aquaculture strains of rainbow trout have greater growth potential relative to wild conspecifics and may outcompete them in nature.

ISBN: 9780494958254Subjects--Topical Terms:

3174300
Aquatic sciences.

The comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experiments.
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520 $a This thesis investigates the comparative growth and mortality of a naturalized (wild) and domestic (aquaculture) strain of rainbow trout (Oncorhynchus mykiss) common to Lake Huron. I first conducted a laboratory-based experiment, comparing the growth rates of the two strains. Under optimal and competition treatments, the domestic strain achieved a body weight &sim;2x that of wild conspecifics. Next, I conducted a replicated, whole-ecosystem study comparing the same strains. Both strains experienced equally low survival and the domestic strain segregated into a fast-growing group, (&sim;3x growth relative to the wild strain), and a slow-growing group that had a lower growth rate than wild trout. A high growth rate for fast-growing domestic trout was achieved by a reliance on high energy prey as well as through low metabolic costs relative to wild strains. Together, these results demonstrate that aquaculture strains of rainbow trout have greater growth potential relative to wild conspecifics and may outcompete them in nature.
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