Hemoglobin polymorphism in some economically important fish of Laguna de Bay (Arius dispar Herre) (Oreochromis niloticus [Linnaeus]) (Therapon plumbeus [Kner])

Date

3-1988

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Ivan Marcelo A. Duka

Abstract

Isohemoglobin patterns of three fish species from Laguna de Bay, "kanduli" (Arius dispar Herre), "tilapia" (Oreochromis niloticus [Linnaeus]) and "ayungin" (Therapon plumbeus [Kner]), were determined through polyacrylamide disc gel electrophoresis. A. dispar had a total of 23 isohemoglobin bands ranging from five to thirteen bands. 0. niloticus possessed a total of 19 isohemoglobin bands ranging from six to fourteen bands. T. plumbeus had a total of 22 isohemoglobin bands ranging from six to twelve bands. Each of the three species exhibited complex banding patterns. Likewise, each species had predominant expression of both cathodal and anodal isohemoglobins. The difference, complexity and heterogeneity of banding patterns maybe attributable to both the environmental adaptation by each species and the inherent genotypic differences. However, statistical analyses using number of bands per sample as basis for comparison indicated that there are no significant differences between samples of each species and between any combination of two of the three species studied.

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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