Date of Publication

5-2005

Document Type

Master's Thesis

Degree Name

Master of Science in Biology

Subject Categories

Aquaculture and Fisheries | Biology

College

College of Science

Department/Unit

Biology

Thesis Adviser

Jose S.R. Carandang VI

Defense Panel Chair

Reynaldo M. De La Paz

Defense Panel Member

Surya Krishna Manohar
Roberto C. Pagulayan

Abstract/Summary

A taxonomic and biogeographic study of the introduced suckermouth armored catfish locally known as 2janitor fish3 is briefly described. Specimens were collected from five sites in the Laguna de Bay basin and were examined for 19 meristic and 37 morphometric characters, and other external characters including coloration. Results were compared with existing literature on fishes in the family Loricariidae. Examination revealed that specimens of janitor fish, previously reported as Hypostomus plecostomus, actually belong to the genus Pterygoplichthys, family Loricariidae. Collected specimens consisted of two species—Pterygoplichthys disjunctivus and Pterygoplichthys pardalis. Both species were collected from the five sites except in Pasig River where only P. disjunctivus was collected.

Abstract Format

html

Language

English

Format

Electronic

Physical Description

xi, 66 leaves

Keywords

Catfishes; Fishes—Identification; Fish culture

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Embargo Period

2-9-2022

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