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Climate, ecology and productivity of...

Agostini, Vera N.

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Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus)./
Author:	Agostini, Vera N.
Description:	181 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 2887.
Contained By:	Dissertation Abstracts International66-06B.
Subject:	Agriculture, Fisheries and Aquaculture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178125
ISBN:	9780542177002

Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus).
Agostini, Vera N.

Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus). - 181 p.

Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 2887.

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

The volatility of pelagic fisheries in the California Current (CC) system has long been a challenge for the west coast fishing community. Over the last century, a number of west coast pelagic stocks have undergone large fluctuations in abundance. Faced with sudden collapses in once thriving fisheries (e.g. Pacific sardine in the late 1940s and Pacific hake in the 1990s), resource managers have struggled to understand the causes behind these fluctuations and develop appropriate responses. The overarching objective of this dissertation is to understand how climate, through its effects on pelagic habitat, influences production variability of sardine and hake in the CC system. I show that climate forcing of the CC system results in dynamic distributions of Pacific sardine and hake populations. I find pelagic habitat for these species to be dynamic, its boundaries changing according to time/space changes of the physical oceanographic variables defining it. By considering the oceanography of pelagic habitats I reveal important links between atmosphere-ocean variability and fishery productivity. A more complete understanding of these links could provide us with tools to better manage the fisheries. The focus of this study on two ecologically and commercially important species will allow for a better understanding of ecosystem variability as a whole, an understanding that will be relevant within the context of the current management structure.

ISBN: 9780542177002Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus).
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100 1 $a Agostini, Vera N. $3 1913043
245 1 0 $a Climate, ecology and productivity of Pacific sardine (Sardinops sagax) and hake (Merluccius productus).
300 $a 181 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 2887.
500 $a Chair: Robert C. Francis.
502 $a Thesis (Ph.D.)--University of Washington, 2005.
520 $a The volatility of pelagic fisheries in the California Current (CC) system has long been a challenge for the west coast fishing community. Over the last century, a number of west coast pelagic stocks have undergone large fluctuations in abundance. Faced with sudden collapses in once thriving fisheries (e.g. Pacific sardine in the late 1940s and Pacific hake in the 1990s), resource managers have struggled to understand the causes behind these fluctuations and develop appropriate responses. The overarching objective of this dissertation is to understand how climate, through its effects on pelagic habitat, influences production variability of sardine and hake in the CC system. I show that climate forcing of the CC system results in dynamic distributions of Pacific sardine and hake populations. I find pelagic habitat for these species to be dynamic, its boundaries changing according to time/space changes of the physical oceanographic variables defining it. By considering the oceanography of pelagic habitats I reveal important links between atmosphere-ocean variability and fishery productivity. A more complete understanding of these links could provide us with tools to better manage the fisheries. The focus of this study on two ecologically and commercially important species will allow for a better understanding of ecosystem variability as a whole, an understanding that will be relevant within the context of the current management structure.
590 $a School code: 0250.
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
650 4 $a Biology, Zoology. $3 1018632
690 $a 0792
690 $a 0472
710 2 0 $a University of Washington. $3 545923
773 0 $t Dissertation Abstracts International $g 66-06B.
790 1 0 $a Francis, Robert C., $e advisor
790 $a 0250
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178125