Assessment of the cadmium and lead content of seagrass, Enhalus acoroides and Cymodocea rotundata collected from Talin Bay Lian, Batangas
Date of Publication
1996
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
Subject Categories
Biology
College
College of Science
Department/Unit
Biology
Abstract/Summary
The concentrations of cadmium and lead in water, sediment and two species of seagrass namely, Enhalus acoroides and Cymodocea rotundata collected from the intertidal zone of Talin Bay in Matuod, Lian, Batangas, were investigated using the atomic absorption sphectophotometer. Physico-chemical characteristics were also determined. All samples were collected in July to December 1995. It was found out that there was a greater accumulation of both lead and cadmium in Cymodocea rotundata than in Enhalus acoroides. Lead has values which range from 0.66 - 1.54 mg/L and cadmium levels ranges from 0.06-0.13 mg/L for Enhalus acoroides. Lead concentration found in Cymodocea rotundata ranges from 1.25 - 4.00 mg/L, and a range from 0.09 - 1.42 mg/L was found for cadmium concentration for the same species. A relationship between root morphology and accumulation of heavy metal was established. Seagrasses which have finer root hairs offers a greater area for adsorptin of heavy metals from the sediment compared to seagrasses having few thick roots. Cadmium concentration was found to be higher in substrates compared to the levels in water and biota. Cadmium concentrations in substrate ranges from 0.05 - 10.29 mg/L while the concentration in water ranges from 0.00 - 0.01 mg/L. Lead concentration, on the otherhand, was higher in water than in the substrate which ranges from 1.07 - 5.17 mg/L and from 1.20 - 2.05 mg/L, respectively.
Abstract Format
html
Language
English
Format
Accession Number
TU07361
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
56 leaves ; Computer printout
Keywords
Water—Composition--Philippines--Batangas; Sediments (Geology)—Heavy metal content----Philippines--Batangas; Seagrasses—Heavy metal content--Philippines--Batangas
Recommended Citation
Mallari, F. V., & Roque, D. C. (1996). Assessment of the cadmium and lead content of seagrass, Enhalus acoroides and Cymodocea rotundata collected from Talin Bay Lian, Batangas. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/4139
Embargo Period
1-21-2021
