Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change
iv, 29 p. Lake Michigan has experienced many changes in its ecosystem that have altered the original environment of the native fish species. The study of burbot (Lot a Iota lacustris) is necessary to better understand the failed reintroduction strategies of lake trout (Salve linus namaycush) and oth...
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ftkalamazoocoll:oai:cache.kzoo.edu:10920/28857 2023-06-11T04:10:43+02:00 Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change Reszka, Natalie Fraser, Ann M., 1963- Jonas, Jory 2013 application/pdf http://hdl.handle.net/10920/28857 en_US eng Kalamazoo College Kalamazoo College Biology Senior Individualized Projects Collection Senior Individualized Projects. Biology; http://hdl.handle.net/10920/28857 U.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder. Thesis 2013 ftkalamazoocoll 2023-04-24T14:12:19Z iv, 29 p. Lake Michigan has experienced many changes in its ecosystem that have altered the original environment of the native fish species. The study of burbot (Lot a Iota lacustris) is necessary to better understand the failed reintroduction strategies of lake trout (Salve linus namaycush) and other ecological processes within Lake Michigan. In this study I focused on the historical changes seen in burbot distribution and health between the years of 1996 and 2012 in the lake. In recent years there has been a change in the regional age distribution of burbot, possibly related to climate change. To determine the spatial variation and distribution of age between three regions of Lake Michigan, I aged otolith structures. Additionally, I used various analyses for conditional or health interpretation of the fish. I found the mid had the youngest, most robust fish and the south had the oldest fish of all three regions. The northern region held the unhealthiest fish based on size. Previous studies have shown that water temperature acclimation plays a role in the migration of burbot indicating their sensitivity to external environmental changes. These results suggest potential environmental stresses that have perturbed the population in southern Lake Michigan through increased water temperatures. The change in climate may have future implications for the distribution and population of the burbot as well as other species within the lake. Further, these changes may cause ecological loss and native species depletion in the Great Lakes if ignored. Charlevoix Fisheries Research Station. Michigan Department of Natural Resources. Charlevoix, Michigan. Thesis Burbot Lota lota lota Kalamazoo College: cache digital archive Southern Lake ENVELOPE(-94.333,-94.333,62.217,62.217) |
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Kalamazoo College: cache digital archive |
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English |
description |
iv, 29 p. Lake Michigan has experienced many changes in its ecosystem that have altered the original environment of the native fish species. The study of burbot (Lot a Iota lacustris) is necessary to better understand the failed reintroduction strategies of lake trout (Salve linus namaycush) and other ecological processes within Lake Michigan. In this study I focused on the historical changes seen in burbot distribution and health between the years of 1996 and 2012 in the lake. In recent years there has been a change in the regional age distribution of burbot, possibly related to climate change. To determine the spatial variation and distribution of age between three regions of Lake Michigan, I aged otolith structures. Additionally, I used various analyses for conditional or health interpretation of the fish. I found the mid had the youngest, most robust fish and the south had the oldest fish of all three regions. The northern region held the unhealthiest fish based on size. Previous studies have shown that water temperature acclimation plays a role in the migration of burbot indicating their sensitivity to external environmental changes. These results suggest potential environmental stresses that have perturbed the population in southern Lake Michigan through increased water temperatures. The change in climate may have future implications for the distribution and population of the burbot as well as other species within the lake. Further, these changes may cause ecological loss and native species depletion in the Great Lakes if ignored. Charlevoix Fisheries Research Station. Michigan Department of Natural Resources. Charlevoix, Michigan. |
author2 |
Fraser, Ann M., 1963- Jonas, Jory |
format |
Thesis |
author |
Reszka, Natalie |
spellingShingle |
Reszka, Natalie Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
author_facet |
Reszka, Natalie |
author_sort |
Reszka, Natalie |
title |
Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
title_short |
Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
title_full |
Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
title_fullStr |
Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
title_full_unstemmed |
Spatial and Temporal Variation in Age Distribution and Growth of Lake Michigan Burgot, Lota lota lacustsris, and Potential Effects of Climate Change |
title_sort |
spatial and temporal variation in age distribution and growth of lake michigan burgot, lota lota lacustsris, and potential effects of climate change |
publisher |
Kalamazoo College |
publishDate |
2013 |
url |
http://hdl.handle.net/10920/28857 |
long_lat |
ENVELOPE(-94.333,-94.333,62.217,62.217) |
geographic |
Southern Lake |
geographic_facet |
Southern Lake |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_relation |
Kalamazoo College Biology Senior Individualized Projects Collection Senior Individualized Projects. Biology; http://hdl.handle.net/10920/28857 |
op_rights |
U.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder. |
_version_ |
1768385342560272384 |