Staff View: Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence

Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence

The intensive development of agricultural activities can be a major threat to the extinction of fish fauna in the tropical headwater streams of Borneo Island. Insufficient information on the influence of multiple land-use on fish communities can lead to failure in preserving ecological buffer zones...

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Main Authors:	Steffie, Philip, Tonga, Noweg, Andrew Alek, Tuen, Jongkar, Grinang
Format:	Article
Language:	English
Published:	UNIMAS Publisher, Sarawak Forestry and Natural History Publications (Borneo) 2023
Subjects:	QH Natural history QL Zoology
Online Access:	http://ir.unimas.my/id/eprint/42107/3/Fish.pdf http://ir.unimas.my/id/eprint/42107/ https://publisher.unimas.my/ojs/index.php/BJRST/index
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id	my.unimas.ir.42107
record_format	eprints
spelling	my.unimas.ir.421072023-07-03T01:44:43Z http://ir.unimas.my/id/eprint/42107/ Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence Steffie, Philip Tonga, Noweg Andrew Alek, Tuen Jongkar, Grinang QH Natural history QL Zoology The intensive development of agricultural activities can be a major threat to the extinction of fish fauna in the tropical headwater streams of Borneo Island. Insufficient information on the influence of multiple land-use on fish communities can lead to failure in preserving ecological buffer zones along stream channels and the loss of aquatic biodiversity. We investigated fish communities of tropical headwater streams in Bau District of Sarawak State that flow through different types of land-uses. It is hypothesised that multiple land-use influent fish diversity and abundance. Fish were sampled at three headwater streams, Sg Bu’un, Sg Dian and Sg Sibomou of Sarawak Kanan River that have multiple land use in the catchment areas. The assessment of land use activities and fish sampling were done once in dry and rainy months. The assessment of land use showed that the distribution of agricultural activities is not consistent across the water catchments of the three headwater streams, which among others could be depending on soil fertility and the interests of the farmers. Oil palm plantation was the major agricultural activity in the catchment of headwater streams. The aboveground biomass varied with the type of land use, size of coverage, and age of the forest or plantation. The fish fauna of the three headwater streams was represented by 25 species in ten families and six orders, which was dominated by the family Cyprinidae. The cyprinids made up 17% of the total individuals with three dominant species are Barbodes sealei, Rasbora cryptica and Oxygaster anomalura. The diversity index of Shannon was significantly different among the three headwater streams. The headwater streams with high coverage of oil palm plantations showed significantly low species richness and high number of individuals. Fish richness and abundance in dry season were significantly lower than rainy season. The less sensitive species such as Systomus ubripinnis, B. sealei, R. cryptica and Parachela oxygastroides were dominant in three headwater streams in both wet and dry months. The findings of this study may suggest that the width of buffer zone along stream channel could be estimated by integrating size of the major land use in the catchment, precipitation, and management practices of each type of land-use. UNIMAS Publisher, Sarawak Forestry and Natural History Publications (Borneo) 2023-06-30 Article PeerReviewed text en http://ir.unimas.my/id/eprint/42107/3/Fish.pdf Steffie, Philip and Tonga, Noweg and Andrew Alek, Tuen and Jongkar, Grinang (2023) Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence. Borneo Journal of Resource Science and Technology, 13 (1). pp. 62-71. ISSN 2229-9769 https://publisher.unimas.my/ojs/index.php/BJRST/index DOI: https:doi.org/10.33736/bjrst.5321.2023
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	QH Natural history QL Zoology
spellingShingle	QH Natural history QL Zoology Steffie, Philip Tonga, Noweg Andrew Alek, Tuen Jongkar, Grinang Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
description	The intensive development of agricultural activities can be a major threat to the extinction of fish fauna in the tropical headwater streams of Borneo Island. Insufficient information on the influence of multiple land-use on fish communities can lead to failure in preserving ecological buffer zones along stream channels and the loss of aquatic biodiversity. We investigated fish communities of tropical headwater streams in Bau District of Sarawak State that flow through different types of land-uses. It is hypothesised that multiple land-use influent fish diversity and abundance. Fish were sampled at three headwater streams, Sg Bu’un, Sg Dian and Sg Sibomou of Sarawak Kanan River that have multiple land use in the catchment areas. The assessment of land use activities and fish sampling were done once in dry and rainy months. The assessment of land use showed that the distribution of agricultural activities is not consistent across the water catchments of the three headwater streams, which among others could be depending on soil fertility and the interests of the farmers. Oil palm plantation was the major agricultural activity in the catchment of headwater streams. The aboveground biomass varied with the type of land use, size of coverage, and age of the forest or plantation. The fish fauna of the three headwater streams was represented by 25 species in ten families and six orders, which was dominated by the family Cyprinidae. The cyprinids made up 17% of the total individuals with three dominant species are Barbodes sealei, Rasbora cryptica and Oxygaster anomalura. The diversity index of Shannon was significantly different among the three headwater streams. The headwater streams with high coverage of oil palm plantations showed significantly low species richness and high number of individuals. Fish richness and abundance in dry season were significantly lower than rainy season. The less sensitive species such as Systomus ubripinnis, B. sealei, R. cryptica and Parachela oxygastroides were dominant in three headwater streams in both wet and dry months. The findings of this study may suggest that the width of buffer zone along stream channel could be estimated by integrating size of the major land use in the catchment, precipitation, and management practices of each type of land-use.
format	Article
author	Steffie, Philip Tonga, Noweg Andrew Alek, Tuen Jongkar, Grinang
author_facet	Steffie, Philip Tonga, Noweg Andrew Alek, Tuen Jongkar, Grinang
author_sort	Steffie, Philip
title	Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
title_short	Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
title_full	Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
title_fullStr	Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
title_full_unstemmed	Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence
title_sort	fish communities of tropical headwater streams under multiple landuse influence
publisher	UNIMAS Publisher, Sarawak Forestry and Natural History Publications (Borneo)
publishDate	2023
url	http://ir.unimas.my/id/eprint/42107/3/Fish.pdf http://ir.unimas.my/id/eprint/42107/ https://publisher.unimas.my/ojs/index.php/BJRST/index
_version_	1770555412847788032
score	13.211869

Fish Communities of Tropical Headwater Streams Under Multiple Landuse Influence

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