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Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes./
作者:	McKenzie, Michael.
面頁冊數:	1 online resource (85 pages)
附註:	Source: Masters Abstracts International, Volume: 84-07.
Contained By:	Masters Abstracts International84-07.
標題:	Environmental science. -
電子資源:	click for full text (PQDT)
ISBN:	9798368451480

Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes.
McKenzie, Michael.

Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes. - 1 online resource (85 pages)

Source: Masters Abstracts International, Volume: 84-07.

Thesis (M.S.)--Trent University (Canada), 2023.

Includes bibliographical references

Migratory fish can influence the rivers where they spawn by depositing nutrients and organic matter which increase primary and secondary production. Past research in the Laurentian Great Lakes has focused on individual tributaries, accordingly, the spatial extent of subsidies and how environmental factors influence subsidies are not clear. To determine which tributaries received subsidies, I compared stable carbon isotope values (δ13C) of resident stream fishes above and below 54 barriers in 37 tributaries. Subsidies were found in found across 43 of the barriers. The subsidy magnitude varied among the lakes, with Lake Superior having significantly larger subsidies. Correspondence analysis of environmental factors showed that large differences in δ13C were associated with steeper river channels on the Canadian Shield with little agricultural land-use. Migratory fish supply resource subsidies to rivers across the Great Lakes basin, though their magnitude is contextually dependent.

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

Mode of access: World Wide Web

ISBN: 9798368451480Subjects--Topical Terms:

1179128
Environmental science.
Subjects--Index Terms:

Great LakesIndex Terms--Genre/Form:

554714
Electronic books.

Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes.
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