Microplastic Contamination In Sinanodonta woodiana (Bivalvia Uniondae) from the Selected Lakes of San Pablo City, Laguna, Philippines

Date

6-2023

Degree

Bachelor of Science in Biology

Major Course

Major in Zoology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Emmanuel Ryan C. De Chavez

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

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Abstract

The Philippines is one of the leading countries in ocean plastic pollution, contributing to the high prevalence of microplastic (MP) contamination (1-5000μm), which is a threat to humans and other organisms.Most of the MPs diverted to the seas originate from freshwater bodies like lakes. However, research focused on MP pollution in freshwater lakes and their biota is still very limited in the country. Thus,the aim of this study is to determine the presence of MP contamination in the invasive and edible Chinese pond mussel, Sinanodonta woodiana in selected lakes (Sampaloc, Palakpakin, and Mohicap) of San Pablo City, Laguna. Twenty adult S. woodiana were collected followed by tissue digestion using 10% potassium hydroxide solution for≥72 hrs. The digested tissue mixture was filtered through 1.2 um GC/F Whatman glass filter to trap the MPs. The identified MPs were classified based on form, size, and color. The type of MPs present in the bivalve were fibers and fragments. MP abundance in S. woodiana did not differ significantly among the three lakes. Principal component analysis revealed varying patterns in MP form, size, and color or transparency, with water parameters (pH, turbidity, temperature, and depth) across sampling sites. The present study demonstrated the presence of MP contamination in S.woodiana in the three lakes of San Pablo City which can be used for science-based policy and management of solid wastes in these important habitats.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2023 B4 A45

Document Type

Thesis

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