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Alternate stable states in coupled f...

Orobko, Melissa.

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Alternate stable states in coupled fishery-aquaculture systems.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Alternate stable states in coupled fishery-aquaculture systems./
Author:	Orobko, Melissa.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	98 p.
Notes:	Source: Masters Abstracts International, Volume: 55-06.
Contained By:	Masters Abstracts International55-06(E).
Subject:	Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10130697
ISBN:	9781339885247

Alternate stable states in coupled fishery-aquaculture systems.
Orobko, Melissa.

Alternate stable states in coupled fishery-aquaculture systems. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 98 p.

Source: Masters Abstracts International, Volume: 55-06.

Thesis (M.Sc.)--University of Toronto (Canada), 2016.

Stagnating capture fisheries production has led to rapid aquaculture development due to an increasing shortfall of wild fish in meeting demand. Farmed fish can negatively ecologically affect nearby wild fish and they can interact economically by supplying similar products to the market, but general theory on how these interactions affect fishery-aquaculture population dynamics and system resilience is lacking. I develop simple theoretical models integrating the ecology, economics, and management of capture fisheries and aquaculture and demonstrate that alternate stable states and hysteresis of equilibrium population abundances can exist, indicating decreased system resilience. Abrupt transitions from a capture fishery-dominated state to an aquaculture-dominated state with few or no wild fish can occur that are difficult to reverse. Empirical patterns of salmonid capture fisheries and aquaculture production data are examined considering the developed theory, which may apply to other systems with wild and domesticated species that are coupled ecologically and economically.

ISBN: 9781339885247Subjects--Topical Terms:

516476
Ecology.

Alternate stable states in coupled fishery-aquaculture systems.
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245 1 0 $a Alternate stable states in coupled fishery-aquaculture systems.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 98 p.
500 $a Source: Masters Abstracts International, Volume: 55-06.
500 $a Includes supplementary digital materials.
500 $a Advisers: Martin Krkosek; Peter Molnar.
502 $a Thesis (M.Sc.)--University of Toronto (Canada), 2016.
520 $a Stagnating capture fisheries production has led to rapid aquaculture development due to an increasing shortfall of wild fish in meeting demand. Farmed fish can negatively ecologically affect nearby wild fish and they can interact economically by supplying similar products to the market, but general theory on how these interactions affect fishery-aquaculture population dynamics and system resilience is lacking. I develop simple theoretical models integrating the ecology, economics, and management of capture fisheries and aquaculture and demonstrate that alternate stable states and hysteresis of equilibrium population abundances can exist, indicating decreased system resilience. Abrupt transitions from a capture fishery-dominated state to an aquaculture-dominated state with few or no wild fish can occur that are difficult to reverse. Empirical patterns of salmonid capture fisheries and aquaculture production data are examined considering the developed theory, which may apply to other systems with wild and domesticated species that are coupled ecologically and economically.
590 $a School code: 0779.
650 4 $a Ecology. $3 516476
650 4 $a Biology. $3 522710
650 4 $a Natural resource management. $3 589570
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