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

Growth of chum salmon in relation to...

Yasumiishi, Ellen Martinson.

FindBook

Google Book

Amazon

博客來

Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea./
作者:	Yasumiishi, Ellen Martinson.
面頁冊數:	182 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-04(E), Section: B.
Contained By:	Dissertation Abstracts International75-04B(E).
標題:	Aquatic sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3607063
ISBN:	9781303644726

Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea.
Yasumiishi, Ellen Martinson.

Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea. - 182 p.

Source: Dissertation Abstracts International, Volume: 75-04(E), Section: B.

Thesis (Ph.D.)--University of Alaska Fairbanks, 2013.

This item must not be sold to any third party vendors.

Global climate change is expected to change the distribution and growth of marine species. Therefore, understanding how climate, ocean productivity, and population abundance affect the dynamics of marine species will help predict how growth and recruitment of marine species will respond to future changes in climatic and oceanic conditions. Statistically significant intertemporal correlations have been observed between a variety of environmental factors and recruitment, growth, mortality, and abundance of fish populations. However, because these correlative relationships are not reflective of the actual biophysical processes, the relationships can break down, particularly when used for forecasting. Failure of these simple correlative relationships motivates the search for biological indicators that integrate ocean productivity across ecological dimensions and through time. Measured distances along Chum Salmon (Oncorhynchus keta) scale radii and associated body morphology were used to construct time series of Chum Salmon growth and, by extension, time series of productivity of those ecological domains salmon have exploited. Seasonal and annual marine growth of Chum Salmon from Fish Creek, Alaska and Quilcene River, Washington were examined in relation to population abundances and climate indices, 1972-2004. Final body size at maturity of these Chum Salmon was associated with variation in immature growth incurred while in oceanic waters. Density-dependent effects and climate explained some of the variation in growth but did not account for the entire increase in size at maturity in the mid-1990s. In the Bering Sea, Chum Salmon growth was assessed as an indicator for the recruitment of Walleye Pollock ( Theragra chalcogramma) to age-1 in an effort to support an ecosystem-based fisheries management. Chum Salmon growth and the maximum of the monthly sea surface temperature explained 85% of the variation in age-1 Walleye Pollock recruitment. Higher Walleye Pollock recruitment success was associated with the combined effect of a cool late summer and intermediate growth of Chum Salmon. The combination of a physical and biological indicator served as the best indicators for changes in the marine growth of Chum Salmon and for the recruitment of Walleye Pollock.

ISBN: 9781303644726Subjects--Topical Terms:

3174300
Aquatic sciences.

Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea.
LDR:03304nmm a2200277 4500 001 2061544
005 20151006081826.5
008 170521s2013 ||||||||||||||||| ||eng d
020 $a 9781303644726
035 $a (MiAaPQ)AAI3607063
035 $a AAI3607063
040 $a MiAaPQ $c MiAaPQ
100 1 $a Yasumiishi, Ellen Martinson. $3 3175822
245 1 0 $a Growth of chum salmon in relation to population abundance and climate in the eastern North Pacific Ocean and the recruitment of Pollock in the eastern Bering Sea.
300 $a 182 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-04(E), Section: B.
500 $a Adviser: Keith Criddle.
502 $a Thesis (Ph.D.)--University of Alaska Fairbanks, 2013.
506 $a This item must not be sold to any third party vendors.
520 $a Global climate change is expected to change the distribution and growth of marine species. Therefore, understanding how climate, ocean productivity, and population abundance affect the dynamics of marine species will help predict how growth and recruitment of marine species will respond to future changes in climatic and oceanic conditions. Statistically significant intertemporal correlations have been observed between a variety of environmental factors and recruitment, growth, mortality, and abundance of fish populations. However, because these correlative relationships are not reflective of the actual biophysical processes, the relationships can break down, particularly when used for forecasting. Failure of these simple correlative relationships motivates the search for biological indicators that integrate ocean productivity across ecological dimensions and through time. Measured distances along Chum Salmon (Oncorhynchus keta) scale radii and associated body morphology were used to construct time series of Chum Salmon growth and, by extension, time series of productivity of those ecological domains salmon have exploited. Seasonal and annual marine growth of Chum Salmon from Fish Creek, Alaska and Quilcene River, Washington were examined in relation to population abundances and climate indices, 1972-2004. Final body size at maturity of these Chum Salmon was associated with variation in immature growth incurred while in oceanic waters. Density-dependent effects and climate explained some of the variation in growth but did not account for the entire increase in size at maturity in the mid-1990s. In the Bering Sea, Chum Salmon growth was assessed as an indicator for the recruitment of Walleye Pollock ( Theragra chalcogramma) to age-1 in an effort to support an ecosystem-based fisheries management. Chum Salmon growth and the maximum of the monthly sea surface temperature explained 85% of the variation in age-1 Walleye Pollock recruitment. Higher Walleye Pollock recruitment success was associated with the combined effect of a cool late summer and intermediate growth of Chum Salmon. The combination of a physical and biological indicator served as the best indicators for changes in the marine growth of Chum Salmon and for the recruitment of Walleye Pollock.
590 $a School code: 0006.
650 4 $a Aquatic sciences. $3 3174300
690 $a 0792
710 2 $a University of Alaska Fairbanks. $b Fisheries. $3 3169766
773 0 $t Dissertation Abstracts International $g 75-04B(E).
790 $a 0006
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3607063