Use of geographical information system and remote sensing techniques for planning culture-based fisheries in non-perennial reservoirs of Sri Lanka

Wijenayake,WMHK, Gunaratne,ABAK, De Silva,SS and Amarasinghe,US 2014, Use of geographical information system and remote sensing techniques for planning culture-based fisheries in non-perennial reservoirs of Sri Lanka, Lakes & reservoirs: research & management, vol. 19, no. 3, pp. 183-191, doi: 10.1111/lre.12071.

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Title Use of geographical information system and remote sensing techniques for planning culture-based fisheries in non-perennial reservoirs of Sri Lanka
Author(s) Wijenayake,WMHK
Gunaratne,ABAK
De Silva,SSORCID iD for De Silva,SS orcid.org/0000-0001-9381-2136
Amarasinghe,US
Journal name Lakes & reservoirs: research & management
Volume number 19
Issue number 3
Start page 183
End page 191
Total pages 9
Publisher Wiley-Blackwell
Place of publication Richmond, VIC
Publication date 2014-09
ISSN 1320-5331
Summary  The presence of a wide areal extent of small-sized village reservoirs offers a considerable potential for the development of culture-based fisheries (CBFs) in Sri Lanka. To this end, this study uses geographical information systems (GISs) and remote sensing (RS) techniques to determine the morphometric and biological characteristics most useful for classifying non-perennial reservoirs for CBF development and for assessing the influence of catchment land-use patterns on potential CBF yields. The reservoir shorelines at full water supply level were mapped with a Global Positioning System to determine shoreline length and reservoir areal extent. The ratio of shoreline length to reservoir extent, which was reported to be a powerful predictor variable of CBF yields, could be reliably quantified using RS techniques. The areal extent of reservoirs, quantified with RS techniques (RS extent), was used to estimate the ratio of forest cover plus scrubland cover to RS extent and was found to be significantly related to the CBF yield (R2 = 0.400; P < 0.05). The results of this study indicated that morphometric characteristics and catchment land-use patterns, which might be viewed as indices of biological productivity, can be quantified using RS and GIS techniques. © 2014 Wiley Publishing Asia Pty Ltd.
Language eng
DOI 10.1111/lre.12071
Field of Research 070402 Aquatic Ecosystem Studies and Stock Assessment
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Wiley-Blackwell
Persistent URL http://hdl.handle.net/10536/DRO/DU:30072705

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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