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The Importance of Dissolved Organic ...

Wilkins, Keiko Woo.

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The Importance of Dissolved Organic Matter Source on the Survival and Growth of Juvenile Daphnia.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Importance of Dissolved Organic Matter Source on the Survival and Growth of Juvenile Daphnia./
作者:	Wilkins, Keiko Woo.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	26 p.
附註:	Source: Masters Abstracts International, Volume: 81-10.
Contained By:	Masters Abstracts International81-10.
標題:	Limnology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27818670
ISBN:	9781392608340

The Importance of Dissolved Organic Matter Source on the Survival and Growth of Juvenile Daphnia.
Wilkins, Keiko Woo.

The Importance of Dissolved Organic Matter Source on the Survival and Growth of Juvenile Daphnia. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 26 p.

Source: Masters Abstracts International, Volume: 81-10.

Thesis (M.S.)--Miami University, 2020.

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

Shifts in forest composition could have significant effects on freshwater zooplankton due to changes in quality of inputs of terrestrially-derived Dissolved Organic Matter (DOM). DOM has been shown to have concentration dependent effects on primary production, but no consistent concentration dependent effects on zooplankton growth rates, raising questions about the potential importance of DOM source. Red maple (Acer rubrum), a native tree, and Amur honeysuckle (Lonicera maackii), an invasive shrub, were used to test the effects of DOM source on juvenile Daphnia ambigua. Amur honeysuckle-derived DOM was expected to have greater negative effects. Bioassays were conducted in the presence or absence of algae with no additional DOM, or red maple or Amur honeysuckle-derived DOM. Both Amur honeysuckle and red maple had negative effects on growth rates in the presence of algae with red maple inducing significantly lower growth rates. Red maple-derived DOM also had negative effects on survival. The negative effects seen in the presence and absence of algae provided evidence for both indirect effects likely due to phytotoxicity and direct negative effects respectively. Future studies accounting for DOM source could enhance our understanding of the complex roles of DOM in regulating consumers in aquatic ecosystems.

ISBN: 9781392608340Subjects--Topical Terms:

545788
Limnology.
Subjects--Index Terms:

Browning

The Importance of Dissolved Organic Matter Source on the Survival and Growth of Juvenile Daphnia.
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500 $a Source: Masters Abstracts International, Volume: 81-10.
500 $a Advisor: Williamson, Craig.
502 $a Thesis (M.S.)--Miami University, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Shifts in forest composition could have significant effects on freshwater zooplankton due to changes in quality of inputs of terrestrially-derived Dissolved Organic Matter (DOM). DOM has been shown to have concentration dependent effects on primary production, but no consistent concentration dependent effects on zooplankton growth rates, raising questions about the potential importance of DOM source. Red maple (Acer rubrum), a native tree, and Amur honeysuckle (Lonicera maackii), an invasive shrub, were used to test the effects of DOM source on juvenile Daphnia ambigua. Amur honeysuckle-derived DOM was expected to have greater negative effects. Bioassays were conducted in the presence or absence of algae with no additional DOM, or red maple or Amur honeysuckle-derived DOM. Both Amur honeysuckle and red maple had negative effects on growth rates in the presence of algae with red maple inducing significantly lower growth rates. Red maple-derived DOM also had negative effects on survival. The negative effects seen in the presence and absence of algae provided evidence for both indirect effects likely due to phytotoxicity and direct negative effects respectively. Future studies accounting for DOM source could enhance our understanding of the complex roles of DOM in regulating consumers in aquatic ecosystems.
590 $a School code: 0126.
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650 4 $a Ecology. $3 516476
650 4 $a Biology. $3 522710
653 $a Browning
653 $a Zooplankton
653 $a Dissolved organic matter
653 $a Daphnia
653 $a Phytotoxicity
653 $a Amur honeysuckle
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690 $a 0329
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