東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Habitat-mediated production and recr...

Hook, Tomas O.

FindBook

Google Book

Amazon

博客來

Habitat-mediated production and recruitment of young alewives in Lake Michigan.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Habitat-mediated production and recruitment of young alewives in Lake Michigan./
作者:	Hook, Tomas O.
面頁冊數:	211 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0630.
Contained By:	Dissertation Abstracts International66-02B.
標題:	Agriculture, Fisheries and Aquaculture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3163823
ISBN:	049698165X

Habitat-mediated production and recruitment of young alewives in Lake Michigan.
Hook, Tomas O.

Habitat-mediated production and recruitment of young alewives in Lake Michigan. - 211 p.

Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0630.

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

The identification and subsequent protection of essential fish habitats (areas with high densities, growth, survival, and/or production rates) can help sustain fish populations. Alewives (Alosa pseudoharengus) in Lake Michigan spawn in a variety of habitats, including near-shore areas, drowned river mouth lakes, embayments, and tributaries. However, the relative contributions of these different nursery habitats to the adult alewife population have not been evaluated. I used a suite of methods to identify critical habitats for young alewives. I integrated bioenergetics models with GIS (Geographic Information Systems) to generate spatially-explicit estimates of potential young-of-year (YOY) alewife population production in near-shore areas of Lake Michigan during August--September 1994 and 1995. Analyses indicated that YOY alewife habitat quality and yield varied widely throughout Lake Michigan during both years, and alewife yield was not spatially correlated with predictions of habitat quality. During 2001 and 2002, I sampled age-0 alewives in a near-shore area of Lake Michigan and three drowned river mouth lakes, characterized physical and biotic habitat factors and related these factors to alewife densities, hatch dates, growth, mortality, and production rates. Alewives in drowned river mouth lakes emerged earlier, grew faster, and had higher survival rates than in near-shore Lake Michigan. In addition, alewives in Muskegon Lake (a drowned river mouth lake) tended to grow to larger size by late fall, and were therefore less likely to experience size-dependent over-winter mortality than alewives in Lake Michigan. Despite lower habitat quality, near-shore Lake Michigan may have contributed the majority of alewife recruits due to the relatively large volume of this habitat type. Finally, I used an individual-based model to estimate inter-annual variation in the ultimate recruitment success (survival through the winter) of alewife cohorts emerging in different habitats. Model simulations suggest that relative contributions of young alewives from different habitat types vary annually, depending upon summer temperatures. During average or warm years, the relative contribution of drowned river mouth lakes to lake-wide alewife recruitment is relatively small. However, during cold years of low recruitment, drowned river mouth lakes may produce the majority of alewife recruits.

ISBN: 049698165XSubjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Habitat-mediated production and recruitment of young alewives in Lake Michigan.
LDR:03404nmm 2200313 4500 001 1849854
005 20051203081259.5
008 130614s2005 eng d
020 $a 049698165X
035 $a (UnM)AAI3163823
035 $a AAI3163823
040 $a UnM $c UnM
100 1 $a Hook, Tomas O. $3 1937788
245 1 0 $a Habitat-mediated production and recruitment of young alewives in Lake Michigan.
300 $a 211 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0630.
500 $a Chairs: Edward S. Rutherford; Paul W. Webb.
502 $a Thesis (Ph.D.)--University of Michigan, 2005.
520 $a The identification and subsequent protection of essential fish habitats (areas with high densities, growth, survival, and/or production rates) can help sustain fish populations. Alewives (Alosa pseudoharengus) in Lake Michigan spawn in a variety of habitats, including near-shore areas, drowned river mouth lakes, embayments, and tributaries. However, the relative contributions of these different nursery habitats to the adult alewife population have not been evaluated. I used a suite of methods to identify critical habitats for young alewives. I integrated bioenergetics models with GIS (Geographic Information Systems) to generate spatially-explicit estimates of potential young-of-year (YOY) alewife population production in near-shore areas of Lake Michigan during August--September 1994 and 1995. Analyses indicated that YOY alewife habitat quality and yield varied widely throughout Lake Michigan during both years, and alewife yield was not spatially correlated with predictions of habitat quality. During 2001 and 2002, I sampled age-0 alewives in a near-shore area of Lake Michigan and three drowned river mouth lakes, characterized physical and biotic habitat factors and related these factors to alewife densities, hatch dates, growth, mortality, and production rates. Alewives in drowned river mouth lakes emerged earlier, grew faster, and had higher survival rates than in near-shore Lake Michigan. In addition, alewives in Muskegon Lake (a drowned river mouth lake) tended to grow to larger size by late fall, and were therefore less likely to experience size-dependent over-winter mortality than alewives in Lake Michigan. Despite lower habitat quality, near-shore Lake Michigan may have contributed the majority of alewife recruits due to the relatively large volume of this habitat type. Finally, I used an individual-based model to estimate inter-annual variation in the ultimate recruitment success (survival through the winter) of alewife cohorts emerging in different habitats. Model simulations suggest that relative contributions of young alewives from different habitat types vary annually, depending upon summer temperatures. During average or warm years, the relative contribution of drowned river mouth lakes to lake-wide alewife recruitment is relatively small. However, during cold years of low recruitment, drowned river mouth lakes may produce the majority of alewife recruits.
590 $a School code: 0127.
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
650 4 $a Environmental Sciences. $3 676987
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Biology, Limnology. $3 1018638
690 $a 0792
690 $a 0768
690 $a 0329
690 $a 0793
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 1 0 $a Webb, Paul W., $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=3163823