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Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush).

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush)./
作者:	Dao, Amy.
面頁冊數:	1 online resource (50 pages)
附註:	Source: Masters Abstracts International, Volume: 85-05.
Contained By:	Masters Abstracts International85-05.
標題:	Evolution & development. -
電子資源:	click for full text (PQDT)
ISBN:	9798380835626

Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush).
Dao, Amy.

Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush). - 1 online resource (50 pages)

Source: Masters Abstracts International, Volume: 85-05.

Thesis (M.Sc.)--University of Toronto (Canada), 2023.

Includes bibliographical references

The gut is a dynamic organ that is important for obtaining nutrients for growth. Due to the high energetic costs associated with maintaining the gut, it may be expected that fish in temporal environments change their gut size to deal with seasonal changes like temperature, light and prey availability. Using intestine length as a unit of measure for the gut, we investigated if lake trout (Salvelinus namaycush) varied the size of their intestine seasonally, across two lakes with different food webs. We found that lake trout in the lake without pelagic forage fish displayed seasonal changes in their intestine length, while lake trout in the lake with pelagic forage fish had relatively consistent size intestine lengths seasonally. Our findings deepen our understanding of how lake trout intestines respond to seasonal changes, which will be important in the future due to shifts in seasonal lengths (i.e. an earlier spring) caused by warming global temperatures.

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

Mode of access: World Wide Web

ISBN: 9798380835626Subjects--Topical Terms:

1178838
Evolution & development.
Subjects--Index Terms:

FishIndex Terms--Genre/Form:

554714
Electronic books.

Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush).
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504 $a Includes bibliographical references
520 $a The gut is a dynamic organ that is important for obtaining nutrients for growth. Due to the high energetic costs associated with maintaining the gut, it may be expected that fish in temporal environments change their gut size to deal with seasonal changes like temperature, light and prey availability. Using intestine length as a unit of measure for the gut, we investigated if lake trout (Salvelinus namaycush) varied the size of their intestine seasonally, across two lakes with different food webs. We found that lake trout in the lake without pelagic forage fish displayed seasonal changes in their intestine length, while lake trout in the lake with pelagic forage fish had relatively consistent size intestine lengths seasonally. Our findings deepen our understanding of how lake trout intestines respond to seasonal changes, which will be important in the future due to shifts in seasonal lengths (i.e. an earlier spring) caused by warming global temperatures.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Evolution & development. $3 1178838
650 4 $a Aquatic sciences. $3 1178821
650 4 $a Ecology. $3 575279
653 $a Fish
653 $a Flexibility
653 $a Gut
653 $a Intestine
653 $a Seasonality
653 $a Winter
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