The water quality and the diatom flora of Sto. Tomas river in San Marcelino, Zambales.

Date

3-1995

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Macrina T. Zafaralla

Abstract

Observations on Sto. Tomas River was done based on the following parameters: water temperature, pH, DO, electrical conductivity, alkalanity, chloride, ammonia-N, nitrogen-N, and ortho-phosphate content. The formerly proticuous, heavily sediment-laden river with a high level of hardness. low alkalanity and neutral pH was dominated by two genera under Class Bacillariophyta namely Navicula and Nitzschia. The minor species were Cyclotella meninghiniana, and Synedra fasiculata,. The species are considered tolerant to a variety of ecological condition in the river. A dichotomous key is constructed. Description and photomicrographs are given for each species.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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