東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Life-history variation and managemen...

Swank, David Rollin.

Linked to FindBook

Google Book

Amazon

博客來

Life-history variation and management of wild Great Lakes steelhead populations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Life-history variation and management of wild Great Lakes steelhead populations./
Author:	Swank, David Rollin.
Description:	192 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0631.
Contained By:	Dissertation Abstracts International66-02B.
Subject:	Agriculture, Fisheries and Aquaculture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3165786
ISBN:	054201047X

Life-history variation and management of wild Great Lakes steelhead populations.
Swank, David Rollin.

Life-history variation and management of wild Great Lakes steelhead populations. - 192 p.

Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0631.

Thesis (Ph.D.)--University of Michigan, 2005.

Steelhead (Oncorhynchus mykiss) were introduced to the Laurentian Great Lakes in the late 1880's, are reproducing successfully, and support valuable recreational fisheries, yet little is known about life-history variation among populations. To quantify and predict life-history trait variation among Great Lakes steelhead populations, and its implications for management, I analyzed data on steelhead life-history traits from the literature, and past and present scale samples collected from spawning runs in Great Lakes tributaries.

ISBN: 054201047XSubjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Life-history variation and management of wild Great Lakes steelhead populations.
LDR:03344nmm 2200313 4500 001 1849861
005 20051203081300.5
008 130614s2005 eng d
020 $a 054201047X
035 $a (UnM)AAI3165786
035 $a AAI3165786
040 $a UnM $c UnM
100 1 $a Swank, David Rollin. $3 1937795
245 1 0 $a Life-history variation and management of wild Great Lakes steelhead populations.
300 $a 192 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0631.
500 $a Chair: Edward S. Rutherford.
502 $a Thesis (Ph.D.)--University of Michigan, 2005.
520 $a Steelhead (Oncorhynchus mykiss) were introduced to the Laurentian Great Lakes in the late 1880's, are reproducing successfully, and support valuable recreational fisheries, yet little is known about life-history variation among populations. To quantify and predict life-history trait variation among Great Lakes steelhead populations, and its implications for management, I analyzed data on steelhead life-history traits from the literature, and past and present scale samples collected from spawning runs in Great Lakes tributaries.
520 $a Significant variation in life-history traits was found among populations both within and among Great Lakes. Hatchery steelhead from a single wild source stocked in different lakes had similar growth rates among lakes, but showed significant differences in age at maturity and adult mortality rate. Significant temporal variation in stream age structure, female age at maturity, and adult mortality was found within most steelhead populations. Female age at maturity was negatively correlated with adult mortality rate, as indexed by percent repeat spawners. The Black River steelhead population had significant changes in life-history traits related to a large decrease in sea lamprey predation since the 1950's.
520 $a I modeled steelhead smolt length as a tradeoff between juvenile growth and mortality in stream and lake habitats, and examined relationships between growth and mortality rates of juvenile steelhead, and stream age of adults. Instantaneous mortality rates of age-0 steelhead parr were significantly related to mean stream age of adults. Stream growth rates were significantly related to mean stream age of adult steelhead. The growth/mortality tradeoff model predicted an optimal smolt length much smaller than observed in Great Lakes populations.
520 $a I configured an age-structured population model on the Little Manistee River steelhead population to evaluate management recommendations for wild steelhead. Model simulations indicated fishing mortality changes in the stream fishery had a larger impact on percent repeat spawners than did equivalent changes in the lake fishery, while fishing mortality changes in the lake fishery had larger impacts on adult population size. Simulations of variable size and creel limits found size limits of 26--30 in., and a creel limit of 1/day produced significant reductions in harvest and increased population size.
590 $a School code: 0127.
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
650 4 $a Biology, Ecology. $3 1017726
690 $a 0792
690 $a 0329
710 2 0 $a University of Michigan. $3 777416
773 0 $t Dissertation Abstracts International $g 66-02B.
790 1 0 $a Rutherford, Edward S., $e advisor
790 $a 0127
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3165786