Malacofauna diversity and water quality of Ubihan Riverine ecosystem, Bulacan, Philippines/ Reiniel Celgie D. Chan, Hazel Anne A. Manalastas, Christine Ann C. Nicdao, Cayla Janel V. Pascual, and Junelyn N. Ramonida.--

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Chan, Reiniel Celgie D [author ]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2023.Description: xiii, 245pages: 29cm. +1 CD-ROM (4 3/4in.)Content type:

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BTH GF 41 C43 2023

Dissertation note: College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2023. Summary: This study aimed to determine the water and soil quality and the malacofauna diversity in the Ubihan Riverine Ecosystem, Bulacan, Philippines, during the five sampling periods from October 2022 to February 2023. The samples were collected in three sampling sites: Site 1 (near residential houses), Site 2 (near construction site), and Site 3 (open area). Grab and composite sampling were used to collect water and soil samples. The malacofauna species were collected using dip-net, hand-pick, and crab pot methods. Survey method was used to determine anthropogenic activities towards river conservation and protection. Results showed that pH, temperature, and nitrates passed the DENR standard, while total coliform, phosphate, and dissolved oxygen exceeded the allowable limit of DENR. The Water Quality Index in Ubihan River was unfit and deteriorated from all sampling sites and all sampling periods. There were 22 (18 identified and 4 unidentified) malacofauna species found in the Ubihan River, of which 13 belong to class gastropods and 8 belong to class bivalves. Shannon-Wiener (H'= 1.45) and Simpson Diversity Index (SDI= 0.65) revealed low diversity of malacofauna across all sites. Bullia sp. (47.12%) and Terebralia sp. (34.86%) were the most abundant malacofauna species found in the Ubihan River, indicating their high pollution tolerance. The abundance of malacofauna species was influenced by water temperature (r=-.926, p=.024) and soil temperature (r=-.917, p=.028), with a high negative correlation and significant relationship. To improve the management and protection of the Ubihan River, there is a need to safeguard the presence of different malacofauna species in the river.

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Holdings
Item type	Current library	Shelving location	Call number	Copy number	Status	Notes	Date due	Barcode
Bachelor's Thesis COS	TUP Manila Library	Thesis Section-2nd floor	BTH GF 41 C43 2023 (Browse shelf(Opens below))	c.1.	Not for loan	For library use only		BTH0005319

Thesis (undergraduate)

College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2023.

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This study aimed to determine the water and soil quality and the malacofauna diversity in
the Ubihan Riverine Ecosystem, Bulacan, Philippines, during the five sampling periods
from October 2022 to February 2023. The samples were collected in three sampling sites:
Site 1 (near residential houses), Site 2 (near construction site), and Site 3 (open area).
Grab and composite sampling were used to collect water and soil samples. The
malacofauna species were collected using dip-net, hand-pick, and crab pot methods.
Survey method was used to determine anthropogenic activities towards river conservation
and protection. Results showed that pH, temperature, and nitrates passed the DENR
standard, while total coliform, phosphate, and dissolved oxygen exceeded the allowable
limit of DENR. The Water Quality Index in Ubihan River was unfit and deteriorated from
all sampling sites and all sampling periods. There were 22 (18 identified and 4
unidentified) malacofauna species found in the Ubihan River, of which 13 belong to class
gastropods and 8 belong to class bivalves. Shannon-Wiener (H'= 1.45) and Simpson
Diversity Index (SDI= 0.65) revealed low diversity of malacofauna across all sites. Bullia
sp. (47.12%) and Terebralia sp. (34.86%) were the most abundant malacofauna species
found in the Ubihan River, indicating their high pollution tolerance. The abundance of
malacofauna species was influenced by water temperature (r=-.926, p=.024) and soil
temperature (r=-.917, p=.028), with a high negative correlation and significant
relationship. To improve the management and protection of the Ubihan River, there is a
need to safeguard the presence of different malacofauna species in the river.

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