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Taxonomy and ecology of flagellated algae in brackish and fresh-water fishponds / by Sanaoh Boonmee

By:

Boonmee, Sanaoh [author]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1979. Cavite State University- Main Campus,Description: 205 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

589.3 B64 1979

Online resources:

Click here to view thesis abstract and table of contents

Abstract: BOONMEE, SANAOH, University of the Philippines at Los Banos, June, 1979, Taxonomy and Ecology of Flagellated Algae in Brackish-and Fresh-water Fishponds. Major Professor: Dr. Milagrosa R. Martinez. An extensive surface water sampling for algae was conducted from brackish - and fresh-water fishponds in Bulacan, and Mujioz, Nueva Ecija, respectively from September, 1977 to September, 1978. A total of 65 species of flagellated algae were identified belonging to 5 divisions, 6 orders, 11 families and 17 genera, This includes 14 varieties of which 3 are probably new varieties. There are 22 species presented here for the first time in the country. Some of the physico-chemical properties of the study areas examined were pH, water and air temperatures, water transparency, dissolved oxygen, hydrolyzable and orthophosphate and ammonia nitrogen content. These parameters seemed to be directly or in-directly affected by the type of season which as a whole affected Ay the fluctuation of the population of the flagellated algae both in terms of spatial and time differences. An exception was noted in Bulacan where the nutrient content of the water, particularly its phosphate and nitrogen content was more dependent on the cultural practices of the fishpond owers, i. e., extensive fertilization using chicken manure, and urea. Of the 11 flagellated species recorded in the fishponds with brackish-water (Bulacan), only the green algae, Chlamydomonas globosa and Carteria klebsii wr. papillae showed significant correlation with some of the physico-chemical variables when ail the independent variables were taken together or individually. Both species of green algae were observed during the dry season when the conductivity, phosphate and nitrogen content of the water are high. But C. globosa was found to show significant positive and negative linear correlation with the phosphate and nitrogen content of the water, respectively, while C. klebsii var. papillae showed positive linear relationship with conductivity readings. The fresh-water fishponds of Nueva Ecija recorded a relatively greater number of species of flagellated algae (59 species) but none showed an importandé value higher than 0.4. A species of euglena (Euglena proxima var. lagunensis) showed a positive linear relationship with the conductivity values of the water. However, this species was not observed in the fishponds of Bulacan. On the other hand, a chlorophyte, Pandorina morum showed significant inverse linear relationship in the dissolved oxygen of the water, Of these 4 algae, the two species of chlorophytes, i.e Chlamydomonas globosa and Carteria klebsii var. papillae. Are probably good indicators of the amount of phosphate and dissolved ions, respectively, in brackish waters.

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Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	589.3 B64 1979 (Browse shelf(Opens below))		Link to resource	Room use only	T-1397		00002289

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Thesis (Ph.D. - - Botany - Phycology) University of the Philippines, College, Laguna.

Includes bibliographical references.

BOONMEE, SANAOH, University of the Philippines at Los Banos, June, 1979, Taxonomy and Ecology of Flagellated Algae in Brackish-and Fresh-water Fishponds. Major Professor: Dr. Milagrosa R. Martinez.

An extensive surface water sampling for algae was conducted from brackish - and fresh-water fishponds in Bulacan, and Mujioz, Nueva Ecija, respectively from September, 1977 to September, 1978.

A total of 65 species of flagellated algae were identified belonging to 5 divisions, 6 orders, 11 families and 17 genera,

This includes 14 varieties of which 3 are probably new varieties. There are 22 species presented here for the first time in the country.

Some of the physico-chemical properties of the study areas examined were pH, water and air temperatures, water transparency, dissolved oxygen, hydrolyzable and orthophosphate and ammonia nitrogen content. These parameters seemed to be directly or in-directly affected by the type of season which as a whole affected Ay the fluctuation of the population of the flagellated algae both in terms of spatial and time differences. An exception was noted in Bulacan where the nutrient content of the water, particularly its phosphate and nitrogen content was more dependent on the cultural practices of the fishpond owers, i. e., extensive fertilization using chicken manure, and urea.

Of the 11 flagellated species recorded in the fishponds with brackish-water (Bulacan), only the green algae, Chlamydomonas globosa and Carteria klebsii wr. papillae showed significant correlation with some of the physico-chemical variables when ail the independent variables were taken together or individually.

Both species of green algae were observed during the dry season when the conductivity, phosphate and nitrogen content of the water are high. But C. globosa was found to show significant positive and negative linear correlation with the phosphate and nitrogen content of the water, respectively, while C. klebsii var. papillae showed positive linear relationship with conductivity readings.

The fresh-water fishponds of Nueva Ecija recorded a relatively greater number of species of flagellated algae (59 species) but none showed an importandé value higher than 0.4. A species of euglena (Euglena proxima var. lagunensis) showed a positive linear relationship with the conductivity values of the water.

However, this species was not observed in the fishponds of Bulacan. On the other hand, a chlorophyte, Pandorina morum showed significant inverse linear relationship in the dissolved oxygen of the water,

Of these 4 algae, the two species of chlorophytes, i.e Chlamydomonas globosa and Carteria klebsii var. papillae. Are probably good indicators of the amount of phosphate and dissolved ions, respectively, in brackish waters.

Submitted to the University Library 01/07/1994 T-1397