dc.contributor.author |
Noble, Joshua J. |
en_US |
dc.contributor.author |
Youngstown State University. Dept. of Biology. |
en_US |
dc.date.accessioned |
2011-01-31T14:18:19Z |
|
dc.date.accessioned |
2019-09-08T02:30:59Z |
|
dc.date.available |
2011-01-31T14:18:19Z |
|
dc.date.available |
2019-09-08T02:30:59Z |
|
dc.date.created |
2002 |
en_US |
dc.date.issued |
2002 |
en_US |
dc.identifier.other |
b19147478 |
en_US |
dc.identifier.uri |
http://jupiter.ysu.edu/record=b1914747 |
en_US |
dc.identifier.uri |
http://hdl.handle.net/1989/6201 |
|
dc.description |
ix, 154 leaves : ill. ; 29 cm. |
en_US |
dc.description |
Thesis (M.S.)--Youngstown State University, 2002. |
en_US |
dc.description |
Includes bibliographical references (leaves 53-56). |
en_US |
dc.description.abstract |
Many fish species are considered to be at risk in the Great Lakes basin. The likely cause
for their declines are, in many cases, either assumed or unknown. Numerous factors
within the environment of these fishes are likely to have a direct effect on the species
themselves, but the question remains: what species and why? Do certain species have
ecological characteristics that may make them more susceptible to decline? In the past,
political jurisdictions within the United States and Canada have enacted conservation
programs separately. The current study is the first basin-wide fish species-at-risk
analysis. A comprehensive species-at-risk list was created for the Great Lakes basin by
referring to state and provincial at-risk lists as well as other non-governmental
conservation agencies. Distribution maps for species at-risk in the basin were,developed
using a geographic information system (GIS) by compiling existing digital data and also
by converting distribution data from non-digital formats. An analysis was undertaken to
determine if ecological and life-history traits varied significantly between fish species atrisk
and not-at-risk in the Great Lakes basin. Data for traits were gathered from
published and unpublished sources. Using statistical analyses (i.e. Mann-Whitney,
Kruskal-Wallis, logistic/multiple regression, discriminant function analysis), it was
determined that fish species-at-risk in the Great Lakes basin are more likely than species
not-at-risk to exhibit K-selected life-history traits or to be specialized for particular
feeding and/or breeding behaviors. |
en_US |
dc.description.statementofresponsibility |
Joshua J. Noble. |
en_US |
dc.language.iso |
en_US |
en_US |
dc.relation.ispartofseries |
Master's Theses no. 0738 |
en_US |
dc.subject.classification |
Master's Theses no. 0738 |
en_US |
dc.subject.lcsh |
Fishes--Great Lakes Watershed (North America)--Endangered species--Great Lakes Watershed (North America) |
en_US |
dc.title |
Distribution and ecological characteristics of fish species-at-risk in the Great Lake basin / |
en_US |
dc.type |
Thesis |
en_US |