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Upstream Migration of Faxonius rusticus in Tributaries of the Monocacy River and Comparison of Two Sampling Methods to Quantify Crayfish Abundance.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Upstream Migration of Faxonius rusticus in Tributaries of the Monocacy River and Comparison of Two Sampling Methods to Quantify Crayfish Abundance./
Author:	Bird, Connor.
Description:	1 online resource (47 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-02.
Contained By:	Masters Abstracts International85-02.
Subject:	Aquatic sciences. -
Online resource:	click for full text (PQDT)
ISBN:	9798380092739

Upstream Migration of Faxonius rusticus in Tributaries of the Monocacy River and Comparison of Two Sampling Methods to Quantify Crayfish Abundance.
Bird, Connor.

Upstream Migration of Faxonius rusticus in Tributaries of the Monocacy River and Comparison of Two Sampling Methods to Quantify Crayfish Abundance. - 1 online resource (47 pages)

Source: Masters Abstracts International, Volume: 85-02.

Thesis (M.S.)--Hood College, 2023.

Includes bibliographical references

The rusty crayfish, Faxonius rusticus, has invaded many of the United States freshwater ecosystems, including the Monocacy River in central Maryland. Prior to this study, the movement of F. rusticus within the Monocacy had only been analyzed in a downstream direction. We hypothesized that F. rusticus is also capable of spreading upstream within the Monocacy River system. Sampling nine of the tributaries to the Monocacy River revealed that since 2007 F. rusticus moved upstream at a minimum rate of 0.5 km (yr-1). We also sought to compare the kick seine and quadrat sampling methods for possible biases. Our findings show that the quadrat sampling method is more capable of catching smaller crayfish than the kick seine and can catch more crayfish (m-2) on average. These findings advance our knowledge of how F. rusticus spreads through an ecosystem and give insight into when it's appropriate to use the quadrat or kick seine.

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

Mode of access: World Wide Web

ISBN: 9798380092739Subjects--Topical Terms:

1178821
Aquatic sciences.
Subjects--Index Terms:

CrustaceanIndex Terms--Genre/Form:

554714
Electronic books.

Upstream Migration of Faxonius rusticus in Tributaries of the Monocacy River and Comparison of Two Sampling Methods to Quantify Crayfish Abundance.
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520 $a The rusty crayfish, Faxonius rusticus, has invaded many of the United States freshwater ecosystems, including the Monocacy River in central Maryland. Prior to this study, the movement of F. rusticus within the Monocacy had only been analyzed in a downstream direction. We hypothesized that F. rusticus is also capable of spreading upstream within the Monocacy River system. Sampling nine of the tributaries to the Monocacy River revealed that since 2007 F. rusticus moved upstream at a minimum rate of 0.5 km (yr-1). We also sought to compare the kick seine and quadrat sampling methods for possible biases. Our findings show that the quadrat sampling method is more capable of catching smaller crayfish than the kick seine and can catch more crayfish (m-2) on average. These findings advance our knowledge of how F. rusticus spreads through an ecosystem and give insight into when it's appropriate to use the quadrat or kick seine.
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