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Effects of assessment frequency and ...

Sylvia, Andrea Lynn.

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Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement./
Author:	Sylvia, Andrea Lynn.
Description:	297 p.
Notes:	Source: Masters Abstracts International, Volume: 54-06.
Contained By:	Masters Abstracts International54-06(E).
Subject:	Aquatic sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1594813
ISBN:	9781321923698

Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement.
Sylvia, Andrea Lynn.

Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement. - 297 p.

Source: Masters Abstracts International, Volume: 54-06.

Thesis (M.S.)--University of Maryland, College Park, 2015.

Some challenges of using stock assessments in management decisions are data availability and the allocation of resources to conduct stock assessments in a frequent and timely manner. We conducted a simulation evaluation that included the population dynamics, stock assessment, and management. Our objectives were to 1) determine effects of assessment interval and data-management lag and 2) test methods to reduce data lag by using partial data in the last year of the assessment. We found that increasing assessment interval and data-management lag caused a decrease in average catch and biomass across scenarios, with data-management lag having a larger effect compared to assessment interval. To reduce the effects of data-management lag, lag reduction methods that included some information about the age-composition of the catch and survey performed about as well as not having lag. Stock assessment interval, data-management lag and lag reduction methods should be considered when designing fishery management plans.

ISBN: 9781321923698Subjects--Topical Terms:

3174300
Aquatic sciences.

Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement.
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100 1 $a Sylvia, Andrea Lynn. $3 3190092
245 1 0 $a Effects of assessment frequency and data-management lag on fishery management performance: Strategies for improvement.
300 $a 297 p.
500 $a Source: Masters Abstracts International, Volume: 54-06.
500 $a Adviser: Michael J. Wilberg.
502 $a Thesis (M.S.)--University of Maryland, College Park, 2015.
520 $a Some challenges of using stock assessments in management decisions are data availability and the allocation of resources to conduct stock assessments in a frequent and timely manner. We conducted a simulation evaluation that included the population dynamics, stock assessment, and management. Our objectives were to 1) determine effects of assessment interval and data-management lag and 2) test methods to reduce data lag by using partial data in the last year of the assessment. We found that increasing assessment interval and data-management lag caused a decrease in average catch and biomass across scenarios, with data-management lag having a larger effect compared to assessment interval. To reduce the effects of data-management lag, lag reduction methods that included some information about the age-composition of the catch and survey performed about as well as not having lag. Stock assessment interval, data-management lag and lag reduction methods should be considered when designing fishery management plans.
590 $a School code: 0117.
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Environmental studies. $3 2122803
690 $a 0792
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710 2 $a University of Maryland, College Park. $b Marine-Estuarine-Environmental Sciences. $3 1023615
773 0 $t Masters Abstracts International $g 54-06(E).
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792 $a 2015
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1594813