The physico-chemical properties of water and soil in relation to the growth of fish stocks in a semi-intensive mixed bangus and prawn farms in Sta. Elena, Hagonoy, Bulacan

Date of Publication

1992

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Biology

College

College of Science

Department/Unit

Biology

Abstract/Summary

The physico-chemical properties of water and soil were monitored in a semi-intensive fish pond in Sta. Elena, Hagonoy, Bulacan from November of 1991 to March of 1992. The objective was to correlate water and soil quality with the growth of fish stocks in the entirety of the culture season from the time of pond preparation, stocking, growing and until harvest.Three water samples were collected at each time interval of 10.00 am, 1:00 pm and 4:00 pm from the two study sites mainly Pond 1 and Pond 2. Each water sample was subjected to different physico-chemical properties of water such as dissolved oxygen, total alkalinity, salinity, pH, nitrate and phosphate concentrations, temperature, visibility and mean depth. The values of the three water samples were calculated and means obtained. Analysis of soil samples by soil composition, soil nutrients and texture were also done by collecting soil samples from the topsoil of Pond 1 and Pond 2. The mean length (cm) and mean weight (gm) of the fishstocks were also measured every sampling period. Likewise, management or productivity data of fishponds were obtained through interview with the controller and owner of the fishponds.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU05891

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

91 leaves ; Computer print-out.

Keywords

Water--Analysis; Biochemical oxygen demand; Fish stocking--Bulacan; Soils--Analysis; Milk-fish (Bangus); Prawns; Water--Composition

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