Home › Vol 7, No 2 (2018): December  ›  Abstract ›  View Pdf

Physicochemical Characteristics and Fish Fauna Composition of Lake Duminagat, Mt. Malindang Range Natural Park, Philippines

Victoria T. Quimpang1, Maricris G. Cudal1, Emmanuel P. Leaño1,2,Einstine M. Opiso3, Verne Lloyd B. Calunsag1 and Victor B. Amoroso1,2

Study on physicochemical properties and freshwater fish was conducted in Lake Duminagat, a lone small crater lake of Mount Malindang Natural Park with a total area of 8.04 hectares. Temperature, pH, oxidation reduction potential (ORP), electrical conductivity, turbidity, dissolved oxygen (DO), and total dissolved solids of (TDS) were the water parameters analyzed. The survey was undertaken in May 2013. The pH, turbidity, and DO in Lake Duminagat fall within the permissible limit for Class AA water body classification intended primarily for waters having watersheds that are declared as protected areas, whereas temperature and TDS were below the standards. Not all of the water parameters analyzed showed significant relationship with water depth. A total of six species of freshwater fish belonging to three families was collected. Diversity Index was found to be high (1.63). The most abundant species in the lake are the native Barbodes binotatus (34.43%) and the exotic Xiphophorus helleri (21.31%), whereas the native Anguilla marmorata (4.92%) was found to be the least abundant. Interestingly, three new exotic freshwater fish species were recorded, the Xiphophorus helleri, Xiphophorus maculatus, and Poecilia reticulata. This study provides an important update of the status of Lake Duminagat.

The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

Alternatively, you can also download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link below.

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

© 2014 MU Research & Publication Office, Phone: +6388 521 0367 loc 106 | research@mu.edu.ph
85920 Total Visitors