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Shrimp farms and the shrimp fishery:...

Colwill, Timothy John.

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Shrimp farms and the shrimp fishery: An economic analysis.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Shrimp farms and the shrimp fishery: An economic analysis./
Author:	Colwill, Timothy John.
Description:	341 p.
Notes:	Source: Dissertation Abstracts International, Volume: 58-05, Section: A, page: 1850.
Contained By:	Dissertation Abstracts International58-05A.
Subject:	Economics, Agricultural. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NN16639
ISBN:	9780612166394

Shrimp farms and the shrimp fishery: An economic analysis.
Colwill, Timothy John.

Shrimp farms and the shrimp fishery: An economic analysis. - 341 p.

Source: Dissertation Abstracts International, Volume: 58-05, Section: A, page: 1850.

Thesis (Ph.D.)--University of Guelph (Canada), 1997.

This thesis studies the optimal management of the Indonesian Wild Shrimp fisheries in conjunction with shrimp farm production. Recruitment of mature wild shrimp is related to the size and fecundity of the spawning population, and the environmental carrying capacity. Captured wild shrimp fry and the shrimp fry produced in hatcheries are used to stock the shrimp farms' ponds. Mangrove forest is converted into farmland. The amount of shrimp fry available is dependent on the size and fecundity of the spawning population, and the size and quality of the remaining wetland. The analysis of the impact of shrimp farms on the Indonesian Wild Shrimp fishery is based on a discrete time dynamic bioeconomic model of joint production of wild and farmed shrimp products. The objective is the maximization of the discounted stream of net benefits subject to changes in the spawning population, the proportion of fry left to mature in the wild, and the conversion of wetland into farmland. Conditions characterizing the optimal steady state size of the spawning population, the proportion of fry harvested for shrimp farm production and size of the remaining wetland are derived. Estimates of the optimal steady state harvests and optimal management trajectories are discussed. Three questions are answered. What are the conditions under which it is efficient to close the mature wild shrimp fishery to protect the shrimp farms' supply of fry or close the shrimp farm production to protect the wild habitat? How much of the natural habitat should be converted to shrimp farming, or conversely, how much of the natural habitat should be preserved? How sensitive are the results to changes in key parameters, e.g. input/output prices, the catchability coefficients and the production parameters for farmed shrimp?

ISBN: 9780612166394Subjects--Topical Terms:

626648
Economics, Agricultural.

Shrimp farms and the shrimp fishery: An economic analysis.
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035 $a (UMI)AAINN16639
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040 $a UMI $c UMI
100 1 $a Colwill, Timothy John. $3 1924449
245 1 0 $a Shrimp farms and the shrimp fishery: An economic analysis.
300 $a 341 p.
500 $a Source: Dissertation Abstracts International, Volume: 58-05, Section: A, page: 1850.
500 $a Adviser: J. Livernois.
502 $a Thesis (Ph.D.)--University of Guelph (Canada), 1997.
520 $a This thesis studies the optimal management of the Indonesian Wild Shrimp fisheries in conjunction with shrimp farm production. Recruitment of mature wild shrimp is related to the size and fecundity of the spawning population, and the environmental carrying capacity. Captured wild shrimp fry and the shrimp fry produced in hatcheries are used to stock the shrimp farms' ponds. Mangrove forest is converted into farmland. The amount of shrimp fry available is dependent on the size and fecundity of the spawning population, and the size and quality of the remaining wetland. The analysis of the impact of shrimp farms on the Indonesian Wild Shrimp fishery is based on a discrete time dynamic bioeconomic model of joint production of wild and farmed shrimp products. The objective is the maximization of the discounted stream of net benefits subject to changes in the spawning population, the proportion of fry left to mature in the wild, and the conversion of wetland into farmland. Conditions characterizing the optimal steady state size of the spawning population, the proportion of fry harvested for shrimp farm production and size of the remaining wetland are derived. Estimates of the optimal steady state harvests and optimal management trajectories are discussed. Three questions are answered. What are the conditions under which it is efficient to close the mature wild shrimp fishery to protect the shrimp farms' supply of fry or close the shrimp farm production to protect the wild habitat? How much of the natural habitat should be converted to shrimp farming, or conversely, how much of the natural habitat should be preserved? How sensitive are the results to changes in key parameters, e.g. input/output prices, the catchability coefficients and the production parameters for farmed shrimp?
590 $a School code: 0081.
650 4 $a Economics, Agricultural. $3 626648
650 4 $a Economics, Theory. $3 1017575
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
690 $a 0503
690 $a 0511
690 $a 0792
710 2 $a University of Guelph (Canada). $3 1018650
773 0 $t Dissertation Abstracts International $g 58-05A.
790 1 0 $a Livernois, J., $e advisor
790 $a 0081
791 $a Ph.D.
792 $a 1997
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NN16639