Fishing down the value chain: Biodiversity and access regimes in freshwater fisheries — the case of Malawi
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| Title: | Fishing down the value chain: Biodiversity and access regimes in freshwater fisheries — the case of Malawi |
|---|---|
| Authors: | Kasulo, Victor1, Perrings, Charles2 Charles.Perrings@asu.edu |
| Source: | Ecological Economics. Aug2006, Vol. 59 Issue 1, p106-114. 9p. |
| Subjects: | Fisheries, Biodiversity, Ecological heterogeneity, Marine biodiversity |
| Abstract: | Abstract: This paper considers the connection between the diversity of catch in a multi-species fishery and the productivity of the fishery under different access regimes. A modified Gordon–Schaefer model is used to analyse the importance of the level of diversity in a fishery in open access and profit maximising regimes. The modified model, which includes both environmental and bioeconomic variables, is fitted to data from a gillnet fishery in Lake Malawi. Pressure on stocks is shown to be greater at all levels of biodiversity in open access than it is in profit maximising regimes. However, in a profit maximising regime both catch and the productivity of fishing effort is highest when there is a single marketed species. By contrast, in an open access regime catches are maximised at higher levels of bioeconomic diversity than in profit maximising regimes. Implications for policy are discussed. [Copyright &y& Elsevier] |
| Copyright of Ecological Economics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 21665600 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Fishing down the value chain: Biodiversity and access regimes in freshwater fisheries — the case of Malawi – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kasulo%2C+Victor%22">Kasulo, Victor</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Perrings%2C+Charles%22">Perrings, Charles</searchLink><relatesTo>2</relatesTo><i> Charles.Perrings@asu.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ecological+Economics%22">Ecological Economics</searchLink>. Aug2006, Vol. 59 Issue 1, p106-114. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fisheries%22">Fisheries</searchLink><br /><searchLink fieldCode="DE" term="%22Biodiversity%22">Biodiversity</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+heterogeneity%22">Ecological heterogeneity</searchLink><br /><searchLink fieldCode="DE" term="%22Marine+biodiversity%22">Marine biodiversity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: This paper considers the connection between the diversity of catch in a multi-species fishery and the productivity of the fishery under different access regimes. A modified Gordon–Schaefer model is used to analyse the importance of the level of diversity in a fishery in open access and profit maximising regimes. The modified model, which includes both environmental and bioeconomic variables, is fitted to data from a gillnet fishery in Lake Malawi. Pressure on stocks is shown to be greater at all levels of biodiversity in open access than it is in profit maximising regimes. However, in a profit maximising regime both catch and the productivity of fishing effort is highest when there is a single marketed species. By contrast, in an open access regime catches are maximised at higher levels of bioeconomic diversity than in profit maximising regimes. Implications for policy are discussed. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ecological Economics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=21665600 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ecolecon.2005.09.029 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 106 Subjects: – SubjectFull: Fisheries Type: general – SubjectFull: Biodiversity Type: general – SubjectFull: Ecological heterogeneity Type: general – SubjectFull: Marine biodiversity Type: general Titles: – TitleFull: Fishing down the value chain: Biodiversity and access regimes in freshwater fisheries — the case of Malawi Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kasulo, Victor – PersonEntity: Name: NameFull: Perrings, Charles IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 08 Text: Aug2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 09218009 Numbering: – Type: volume Value: 59 – Type: issue Value: 1 Titles: – TitleFull: Ecological Economics Type: main |
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