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Exploring the Effects of Seasonality...

Dao, Amy.

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

Record Type:	Electronic resources : Monograph/item
Title/Author:	Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush)./
Author:	Dao, Amy.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
Description:	50 p.
Notes:	Source: Masters Abstracts International, Volume: 85-05.
Contained By:	Masters Abstracts International85-05.
Subject:	Ecology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30688692
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). - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 50 p.

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

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

This item must not be sold to any third party vendors.

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.

ISBN: 9798380835626Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Fish

Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush).
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020 $a 9798380835626
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100 1 $a Dao, Amy. $3 3762854
245 1 0 $a Exploring the Effects of Seasonality on the Gut of a Top Predator Fish, Lake Trout (Salvelinus namaycush).
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 50 p.
500 $a Source: Masters Abstracts International, Volume: 85-05.
500 $a Advisor: McMeans, Bailey.
502 $a Thesis (M.Sc.)--University of Toronto (Canada), 2023.
506 $a This item must not be sold to any third party vendors.
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.
590 $a School code: 0779.
650 4 $a Ecology. $3 516476
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Evolution & development. $3 3172418
653 $a Fish
653 $a Flexibility
653 $a Gut
653 $a Intestine
653 $a Seasonality
653 $a Winter
690 $a 0329
690 $a 0412
690 $a 0792
710 2 $a University of Toronto (Canada). $b Ecology and Evolutionary Biology. $3 3190014
773 0 $t Masters Abstracts International $g 85-05.
790 $a 0779
791 $a M.Sc.
792 $a 2023
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30688692