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Habitat quality and fish population

impacts of nutrient enrichment on European perch population in south east Sweden

Tafesse Tirkaso, Wondmagegn and Gren, Ing-Marie (2016). Habitat quality and fish population. Uppsala: (NL, NJ) > Dept. of Economics, Sveriges lantbruksuniversitet. Working paper series / Swedish University of Agricultural Sciences, Department of Economics ; 2016:02
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Abstract

Degradation of marine ecosystem due to, among others, eutrophication and climate change, has been of concern for sustainable fishery management worldwide, but studies on associated impacts on fish populations are rare. The purpose of this study is to estimate effects of nutrient loads, which cause eutrophication, on the perch population at the Swedish east coast. To this end, we use a modified Gordon-Schaefer logistic growth model for econometric estimation of perch population on the Swedish east coast, which is based on annual time series data for the period 1970–2014. Regression results from the Fully Modified Ordinary Least Square (FMOLS) estimator indicated that phosphorus loads have significant effects on the perch population. A decrease in phosphorus loads by 40% , as suggested by the international Copenhagen agreement, can raise the steady state perch population by 50%.

Authors/Creators:Tafesse Tirkaso, Wondmagegn and Gren, Ing-Marie
Title:Habitat quality and fish population
Subtitle:impacts of nutrient enrichment on European perch population in south east Sweden
Series/Journal:Working paper series / Swedish University of Agricultural Sciences, Department of Economics (1401-4068)
Year of publishing :2016
Number:2016:02
Number of Pages:21
Place of Publication:Uppsala
Publisher:Department of Economics, Swedish University of Agricultural Sciences
ISSN:1401-4068
Language:English
Publication Type:Report
Article category:Other scientific
Full Text Status:Public
Agris subject categories.:T Pollution > T01 Pollution
U Auxiliary disciplines > U10 Mathematical and statistical methods
Subjects:(A) Swedish standard research categories 2011 > 5 Social Sciences > 502 Economics and Business > Economics
Agrovoc terms:perca fluviatilis, perch, pollutant load, nitrogen, phosphorus, eutrophication, coastal waters, environmantal impact, econometrics, sweden
Keywords:nutrient loads, perch populations, logistic growth, econometrics, Swedish east coast
URN:NBN:urn:nbn:se:slu:epsilon-e-3377
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3377
ID Code:13272
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Economics
Deposited By: SLUpub Connector
Deposited On:13 Apr 2016 10:14
Metadata Last Modified:13 Apr 2016 10:14

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