Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution

This study consisted of intertidal surveys to determine the general distribution and zonation of intertidal Brachyuran crabs along the coast of Sarawak and investigations into the use of fiddler crabs (genus Uca) as a biological monitor for heavy metal pollution. The suitability of fiddler crabs as...

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Main Author: Huet, Charmaine Andrea
Format: Thesis
Language:English
Published: 2000
Subjects:
Online Access:http://ir.unimas.my/id/eprint/3610/1/Huet.pdf
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spelling my-unimas-ir.36102023-05-09T07:42:41Z Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution 2000 Huet, Charmaine Andrea QL Zoology This study consisted of intertidal surveys to determine the general distribution and zonation of intertidal Brachyuran crabs along the coast of Sarawak and investigations into the use of fiddler crabs (genus Uca) as a biological monitor for heavy metal pollution. The suitability of fiddler crabs as biological monitors was examined by correlating the concentrations of eight heavy metal in the sediment and in the crab tissues, to the population density of the crabs. It was hypothesized that high concentrations of heavy metals would result in low population densities. Population density was estimated by counting the number of open burrows during low tide, assuming a 1:1 burrow-occupancy ratio after preliminary trials. Sediment samples and crab specimens were analysed for heavy metals using atomic absorption spectrometry. The sediment was also examined for particle size, pH and Eh, and percentage of organic matter. Universiti Malaysia Sarawak, (UNIMAS) 2000 Thesis http://ir.unimas.my/id/eprint/3610/ http://ir.unimas.my/id/eprint/3610/1/Huet.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Institute of Biodiversity and Environmental Conservation.
institution Universiti Malaysia Sarawak
collection UNIMAS Institutional Repository
language English
topic QL Zoology
spellingShingle QL Zoology
Huet, Charmaine Andrea
Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
description This study consisted of intertidal surveys to determine the general distribution and zonation of intertidal Brachyuran crabs along the coast of Sarawak and investigations into the use of fiddler crabs (genus Uca) as a biological monitor for heavy metal pollution. The suitability of fiddler crabs as biological monitors was examined by correlating the concentrations of eight heavy metal in the sediment and in the crab tissues, to the population density of the crabs. It was hypothesized that high concentrations of heavy metals would result in low population densities. Population density was estimated by counting the number of open burrows during low tide, assuming a 1:1 burrow-occupancy ratio after preliminary trials. Sediment samples and crab specimens were analysed for heavy metals using atomic absorption spectrometry. The sediment was also examined for particle size, pH and Eh, and percentage of organic matter.
format Thesis
qualification_level Master's degree
author Huet, Charmaine Andrea
author_facet Huet, Charmaine Andrea
author_sort Huet, Charmaine Andrea
title Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
title_short Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
title_full Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
title_fullStr Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
title_full_unstemmed Spatial distribution of brachyuran crabs in Sarawak with emphasis on fiddler crabs (Genus UCA) as biomonitors of heavy metal pollution
title_sort spatial distribution of brachyuran crabs in sarawak with emphasis on fiddler crabs (genus uca) as biomonitors of heavy metal pollution
granting_institution Universiti Malaysia Sarawak (UNIMAS)
granting_department Institute of Biodiversity and Environmental Conservation.
publishDate 2000
url http://ir.unimas.my/id/eprint/3610/1/Huet.pdf
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