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Biotelemetry Provides New Insights About the Migrations of Adult Walleye in Lake Ontario.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Biotelemetry Provides New Insights About the Migrations of Adult Walleye in Lake Ontario./
Author:	Elliott, Connor William.
Description:	1 online resource (236 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
Subject:	Animal migration. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30519933click for full text (PQDT)
ISBN:	9798379872274

Biotelemetry Provides New Insights About the Migrations of Adult Walleye in Lake Ontario.
Elliott, Connor William.

Biotelemetry Provides New Insights About the Migrations of Adult Walleye in Lake Ontario. - 1 online resource (236 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--Queen's University (Canada), 2023.

Includes bibliographical references

Walleye (Sander vitreus) populations throughout the Laurentian Great Lakes complete annual migrations between spawning and foraging habitats. Until recently, information regarding these migrations was collected using traditional assessment methods and fisheries-dependent data, which can be biased based on the distribution of effort. Advances in tracking technology and electronic tagging techniques now provide the tools to collect information from freeswimming individuals, including those from highly mobile species. This thesis examined the timing, extent, and patterns of migration for adult walleye that spawn in the Bay of Quinte and migrate through eastern Lake Ontario. The within-individual repeatability of these annual migrations was determined to be high at the temporal, spatial, and combined spatiotemporal levels. Tagging fish with a combination of acoustic transmitters and pop-off data storage tags (pDSTs) provided insights into the benefits and limitations of each method and identified a novel diving behaviour for this species. Combining the data from both methods provided an overview of the seasonal temperatures, depths, and activity levels experienced by these fish across an entire annual migration. There were sex-based differences in the timing, extent, area use, and vertical activity rates during the annual migration, as well as the number of dives per day during the summer. Within-individual repeatability of migrations was not influenced by sex or size, however it was different between spawning locations. For most studies, acoustic transmitters can provide estimates of thermal and depth preferences, but they are highly influenced by receiver coverage, often omit extreme values, and cannot produce accurate measures of vertical activity. This thesis improves our understanding of migratory behaviour in freshwater fish, and the degree to which they are able to repeat these behaviours. It outlines the benefits and limitations of new methods that can be used to collect high-resolution data throughout the year. Future studies should examine the drivers behind these movements, and the mechanisms that these fish use to navigate across large inland waterbodies.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379872274Subjects--Topical Terms:

680254
Animal migration.
Index Terms--Genre/Form:

542853
Electronic books.

Biotelemetry Provides New Insights About the Migrations of Adult Walleye in Lake Ontario.
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