Undergraduate Theses

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A study on the performance of the regulatory functions of the Kapisanan ng mga Broadcaster sa Pilipinas Iloilo Chapter
Advincula, Rebecca (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1987-03)
Generally, regulations are viewed as important factors in the functions of an industry or organization. Like any other industry, broadcasting needs to he regulated. The Kapisanan ng mga Brodkaster sa Pilipinas is a self-regulatory body which implements regulations affecting the programming operations of the Broadcast stations. However, not all regulations are said to be followed by the stations. It is in this regard that this study was conducted. Three factors were considered in finding out whether KBP regulations are important to the operations of the stations: the importance and necessity of these regulations; the capability of the KBP in implementing these regulations; and the extent of public participation between KBP and its member stations. The necessity level was determined by a study of each regulatory function, the activities covered by these regulations, and the relative need of the stations to these regulations. The capability level was determined by a study on the frequent observance of the stations to the regulations, the objectives of the respondent stations, and the major output, organizational structure, and budget of the KBP as a regulatory body. Public participation was determined by a study of the frequency used modes of interaction involved in the implementation of the regulations, the problems met in the process, and the respondent stations' rating/assessment of the KBP. The study made use of the one-shot survey design with interview schedule and use of questionnaires as main instruments. The respondents for the KBP are the station managers, while respondents for the regulated are the production staff of the local stations. A total of twelve stations were taken as respondents for the study. Results showed too many regulations are imposed by the KBP and are not strictly followed by the stations. Regulations that are mostly followed are those which pertain to the presentation of news while those often violated pertain to public commentaries and issues, the presentation of materials regarding sex and violence and the airing of commercials. Results showed that these regulations are necessary to maintain a certain level of excellence and professionalism in the broadcast industry, Likewise, the KBP is capable of implementing regulations to the station , as shown by the constant interaction between the regulator and the regulated.
Guerilla movement in Oton during the Japanese occupation of Panay: History and significance
Antiquiera, Remigio G. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1989-03)
This is a research paper on the guerrilla movement in Oton during the Japanese occupation of Panay from April 15, 1942, up to the final disbandment of the different guerrilla units on July 31, 1945. The objectives of the study are: to find out the origin, goals, and objectives of the guerrilla movement in Oton; to identify the persons involve in the founding of the guerrilla movement in the area during the Japanese occupation of Panay; and to find out the significance of the guerrilla movement in Oton in relation to Panay's struggle to be liberated from the Japanese forces. The purpose of this study is to present, in a descriptive manner, the guerrilla movement in Oton during the Japanese occupation of Panay. The sources used are published and unpublished materials of soldiers and guerrillas, regarding their activities and experiences during the occupations. Also, the researcher was able to interview persons were actively participating in the guerrilla movement at that time, and other persons who had witnessed the Japanese occupation. The study was able to bring into light the nature of the guerrilla movement in Oton during the Japanese occupation of Panay and its significance in the defeat of the Japanese. The guerrillas of Oton, together with other unite attached to the 63rd RCT, were able to fill the gap in the overall plan of resistance in the southern towns of Iloilo. It was their active resistance that help facilitate the drive of the Americans to liberate the southern part of Iloilo. This, subsequently, weakened the southern defenses of the Japanese and enabled the combined force of Filipinos and Americans to liberate the rest of Panay.
A study of the performance of the marketing intermediaries at the Iloilo fishing port complex
Acanto, Jan B. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1989-03)
This research study presents an analysis on the performance of the marketing intermediaries at the Iloilo fishing Port Complex. The following types of intermediaries are involved in marketing fish landed at IFPC: brokers, wholesalers, bulanteros, and retailers. Brokers assemble and dispose the fish of producers while the wholesalers, bulanteros and retailers create the forms, time and place utilities. The results show that fish marketing intermediaries perform functions which are vital in the fish marketing system. Average costs per week were ₱13.67, ₱46.54 and ₱77.26 per tub for the brokers, wholesalers, and retailers, respectively. The average volume handled per week is 4,641.17 kilograms. Cost and returns analysis for all intermediaries showed that the average not return above total cost is ₱2.36 per kilogram. The average total income above total cost is ₱10,953.18 per week. The rate of return to capital, operator’s labor, and entrepreneurship is 14.49 percent. Efficiency of each type of intermediary _ could not be measured due to the fact that the sample size of each type is not sufficient to obtain significant results. In relation to this, a further study that could measure the efficiency of each intermediary is recommended by the researcher.
Marketing of milkfish in Iloilo City
De la Gente, Alice Joan S. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1991)
This study describes the marketing practices, costs, net farm price received by the producers, gross margin received by the middlemen and the problems encountered in milkfish marketing in IIoi1o City. Primary data was gathered from 24 producers who were interviewed about their 1ast harvest and 56 midd1emen who were interviewed about their last week's transaction. Of the total volume sold by the producers (30360kg , 86.83% went to the commission men. The highest price, P55/kg, was received by the producers from the institutional buyer, while the lowest price, p38.48/kg, was received from the commission men. The marketing costs received were P5.40/kg and P5.61/kg by the producers who sold locally and in Manila, respectively. The commission men's fee accounted for the largest share of marketing costs of both the producers who sold locally (P2.36/kg) and in Manila (P2.50/kg). The net farm prices received were P35.30/kg and P33.72/kg by producers who sold milkfish locally and in Manila, respectively. The producers whose milkfish were sold in Manila received a lower average price with higher marketing costs. By market function, seven types of middlemen were identified: commission man, buyer-seller, wholesaler, wholesaler-shipper, buyer-seller-retailer, wholesaler-retailer, and retailer. The middlemen sold a total volume of 57070.5kg inside (64.037%) and outside (35.977%) the survey area. The commission men sold the highest volume (34.71%) of milkfish. The wholesaler-retailers received the highest average selling price of P47.75/kg. The wholesaler-shippers had the highest gross margin ( P8.22/k kg) while the wholesaler—retailers who sold outside the survey area had the highest net return ( P3.97/ kg ) The low price of milkfish was the main problem of both producers and middlemen. The milkfish marketing involved many channels, primarily brought about by the presence of too many types of middlemen who practiced intertrading among each other. Thus, there was a duplication of the performance of marketing practices among types of middlemen, which increased the marketing costs and correspondingly raised the prices of milkfish.
An estimation of the supply of cattle in the livestock auction market in Leon, Iloilo
Andrada, Clyde (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1991-05)
This study was an economic analysis of the supply of cattle by the direct cattle producers in Leon Livestock Auction Market in Leon, Iloilo in 1989. The study includes the estimation of the supply function, the identification of the significant factors affecting the supply and the analysis of the price elasticity. The supply function of cattle were hypothesized to be affected by four (4) factors, namely: price of cattle (X1) value of inputs used in cattle production (Xz), price of related commodities (X3) and the availability of credit (X4). Simple Random Sampling was used in choosing the thirty (30) respondents who, were direct cattle producers who sold their cattle in Leon Livestock Auction Market in 1989. These cattle producers were interviewed with the use of an interview schedule. The data gathered includes total weight and number of cattle supplied in the market by the producers and the prices of resource inputs used in the cattle production. Other data such as the price of cattle per kilogram liveweight were taken from the records of the Bureau of Agricultural Statistics. Regression Analysis was applied to determine the coefficients of the supply function. Specifically, stepwise regression analysis was used. Results of the study showed that the estimated supply function of cattle was Qs = — 1843.4461 + 96.6056 X1, where x; is the average price of cattle per kilogram liveweight. Thus, the only significant factor affecting the supply of cattle was the variable X1. The price elasticity supply is 4.6984. The supply of cattle is therefore price elastic because the percentage change in cattle supplied is greater than the percentage change in price.
Sea tidal occurrence as basis for estimating the time of child deliveries
Abello, Jose Hernany L., Jr. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1992-03)
The study was made to investigate the reliability of using the predicted time of occurrence of high tide or low tide as a basis of estimating the time of delivery of a child. This was conceived because of the belief and practice of "hilots" which has never been proven scientifically. The data on deliveries were obtained from the Angel Salazar Memorial General Hospital (San Jose, Antique) and the Western Visayas Medical Center (Mandurriao, Iloilo City). Random sampling was used with ten deliveries chosen for each month in the respective hospitals from the total number of spontaneous deliveries for the year 1990. The time of delivery was paired with the nearest occurrence of high or low tide based on the Predicted Tide and Current Tables for 1990 published by the National Mapping and Resource Information Authority, Coast and Geodetic Surveys Department. The raw data were subjected to regression analysis using Microstat software. The linear correlation coefficients (r) obtained were 0.960 (ASMGH) and 0.949² (WVMC) while the coefficients of determination (r² ) were 0.921 (ASMGH) and 0.901 (WVMC). A strong positive correlation between the two variables was seen in both hospitals studied. The time durations before or after the occurrence of high or low tide within which a child could be expected to be delivered on the average were 1.68 hours (ASMGH) and 1.85 hours (WVMC). The study has demonstrated that the could be delivery estimated time of occurrence of high or low tide considered as basis for estimating the time of a baby.
Effect of varying levels of cotton (Gossypium sp.) seed meal on the spermatogenesis of mice (Mus musculus)
Abonador, Luena A. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1992-04)
Cottonseeds procured from Western Colton Corporation, Oton, Iloilo were dehulled, cleaned by hand, and ground using a mortar and pestle. Ground cottonseed meal (CSM) was incorporated in varying amounts into the basal diet so that diets contained varying levels (0,10,20,30 g) of CSM per 100 g formulated diet. These were then pelletized at the Nutrition and Feed Division, Aquaculture Department (AQD), Southeast Asian Fisheries Development Center (SEAFDEC), Tigbauan, Iloilo. A total of thirty-two 20-day-old male mice (16 white and 16 black) were randomly distributed to four dietary treatments, each with four replicates. After a 5-day acclimatization period, during which the mice were fed with the basal diet (0% CSM), the four experimental diets were given to the randomly selected experimental animals for another 35 days. The mice were subsequently sacrificed, and histological examination of the testes was conducted. Differential count of sperms was done to evaluate the effects of varying levels of CSM on the spermatogenesis of mice. The data obtained were analyzed statistically using analysis of variance followed by Duncan’s Multiple Range Test. There was no significant difference in the sperm counts of the two strains of mice. However, significant differences (P<0.01) were noted in sperm counts of mice at various levels of CSM in the diet. Likewise, significant differences (P<0.01) were observed between 0% and 20 or 30%; 10% and 20 or 30%; 20% and 30% CSM in the diet. No significant difference was noted between sperm counts of mice fed with 0% and 10% CSM levels. Slight degeneration of the seminiferous tubules and predominance of immature stages (spermatogonia) were observed in the testes of mice fed with diet containing 30% CSM.
Dominant personality characteristics of Roxas City elective office aspirants and their reasons for candidacy
Ardivilla, Gerreon O. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1992-10-13)
This is a study on the personality characteristics of City political office aspirants. This was conducted to identify the dominant personality characteristics of Roxas City political office aspirants, to identify their dominant personality characteristics in relation to the position they aspire for, and to determine the reason for fielding themselves to the position they aspire for. The study hypothesizes that there is no significant difference in the dominant personality characteristics of the Roxas City elective office aspirants in relation to the elective positions aspired for. Through the use of the Edwards Personal Preference Schedule, the dominant personality characteristics of the respondents were identified as (by ranking): nurturance succcorance, affiliation, autonomy, exhibition, deference, abasements, and aggression. The findings are supportive of the hypothesis. Through the use of an open-ended questionnaire, the reasons for candidacy of the respondents was determined. Serving the people of Roxas City has the most responses. Consistency on the response was noted on the questions on the factors that made them decide to run, the importance, and significance of their candidacy. The study suggests the use of etic and emic approach to further establish the personality characteristics of the Roxas City elective office aspirants.
Academic performance of UPV Iloilo High School students admitted under the democratized admission scheme
Apalacio, Reymund D. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1993-04)
As its contribution to the enhancement of the social welfare of people, especially the poor, in a poor developing country like the Philippines, a government university like UP has embarked on a policy democratized education which includes the scheme of democratized admission at the UPV Iloilo High School. This paper undertook action research, which is the applications of tools and methods of social science to immediate, practical problems, to determine the academic performance of economically poor students admitted under the new, democratized admission scheme of the UPV Iloilo High School. It was found out that generally they perform as well as their better-off counterparts under the old scheme (with tuition fees).
Anti-microbial activity of aqueous extracts from selected Philippine soft coral species
Aguilar, Remotito A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-03)
Five species of soft corals were collected from Taklong Islands Guimaras and then extracted with water. The aqueous extract was assayed for anti- microbial activity. Potent extracts were tested for its minimal inhibitory concentration against the most sensitive microorganisms. The equivalent potency was also determined using PEN VK as the standard antibiotic. Lobophyton was found to inhibit S. aureus at 50% concentration of the aqueous extract (ATCC 25923) while Sinuloria. sp. was found to inhibit the growth of both S. aureus (ATCC 25923) and B. subtilis (NSRI-1). Aqueous extracts of Lobophyton sp.has an equipotency of 6.64 units/ml of PEN VK against S. aureus, whereas aqueous extracts of Sinulcria sp. has a potency of 104 units/ml of PEN VK against B. subtilis.
A historical analysis of Pintado (Euphorbia heterophylla)
Alcarde, Annabelle Z. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-03)
A histochemical study on Euphorbia heterophylla, a shrubby plant of the Family Euphorbiaceae was performed to screen the plant for the presence of medically important substances that could be responsible for its curative powers. Results of the analysis showed that aldehydes are highly detectable in the stem (xylem and phloem); moderately detectable in the leaf (xylem), stem (epidermis and vascular cambium), root (phloem) and flower (ovary); and slightly detectable in the flower (calyx). Alkaloids are moderately detectable in the stem (xylem, vascular cambium, and phloem) and slightly detectable in the leaf (xylem, vascular cambium, epidermis, and phloem). Amygdalin is highly detectable in the leaf (xylem) and stem (epidermis); moderately detectable in the root (phloem), and fruit (seed and pericarp); and slightly detectable in the root (xylem) and the flower (ovary). Arbutin is highly detectable in the xylem of the leaf and pericarp of the fruit; moderately detectable in the phloem of the leaf and vascular cambium of the stem; and slightly detectable in the stem (xylem, phloem, and epidermis), root (xylem), and flower (ovary). Saponins are highly detectable in the leaf (xylem, phloem, and epidermis), (xylem), root (xylem and phloem), flower (calyx and ovary) and fruit (seed). Formic acid is moderately detectable in the leaf and stem (epidermis), and slightly detectable in the stem and root (xylem). Oxalic acid is slightly detectable in the stem (phloem). Tannins are highly detectable in the stem (xylem and phloem) and fruit (pericarp); moderately detectable in the leaf (xylem and phloem) and fruit (seed); and slightly detectable in the stem (epidermis).
Fears of Doña Montserrat Lopez Memorial High School students, Silay City, Negros Occidental
Arcenas, Maricar D. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-04)
The study focuses on the different types of fears of Doña Montserrat Lopez Memorial High School students in Silay City, Negros Occidental. The aim of the study is to identify the different types of fears of Doña Montserrat Lopez Memorial High School students? to determine the most intensely Feared abject and the least intensely feared object on every fear category. For every gender, per year levels and to determine whether there is gender difference on the reported intensity for each type of fear, per year level. There were 245 respondents, 85 of which were Freshmen, 51 were Sophomores, 64 were Juniors, and 45 were Seniors. The respondents were selected through stratified random sampling using proportional allocation. The design that was used in this study is the survey. A questionnaire and a checklist were used to identity the different types of fear of the respondents and the trend of its intensity. The trend of the intensity on the different types of fear were measured using the formula of the average score and the T test formula. The findings showed that Doña Montserrat Lopez Memorial High School students have fear of supernaturals, animals, nature natural calamities; man-made calamities; means oF transportation; places; fear of certain criminals; and fear of crimes. The intensity report showed that there are similarities and differences on the reported most intensely feared objects and least intensely feared object on the different fear categories, per year level. Furthermore, the result of the study also showed that there is no gender difference on the intensity report on most feared objects per year level.
A preliminary study on the effect of neem (Azadirachta indica) seed extract on the reproductive potential of the female Friutfly (Drosophila melanogaster)
Altea, Armee H. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-04)
Eqqs, first instar larvae, and third instar larvae of fruit flies (D. melanogaster), were treated with 0%, 10%, and 15% neem seed extract. This resulted in reduced number of adults that emerged from treated embryos and larvae. Females following treatment crossed with untreated males have reduced number of progeny compared with control (untreated) females. Treatment of extract at three stages of development indicated that fertilized eggs were most affected by the extract. Females derived from treated eggs were sterile. The number of progeny produced by females treated during first instar stage were considerably reduced compared to controls. On the other hand, the number of progeny produced by females treated during third instar stage was not significantly different from controls. The results suggest that neem seed extract has active components which can reduce the reproductive potential of female fruit flies exposed to the chemicals particularly at the early stages of development.
Effect of Physico-chemical parameters of rearing waters on survival rates of larvae and post larvae of Penaeus monodon in two hatchery systems
Alindong, Ray Lauron (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1995-03)
Physico-chemical parameters such as temperature, pH, salinity, and D.O. of the small-scale and large-scale hatchery system were monitored daily for a duration of two months. The relationship between the physico-chemical parameters and the survival of the different larval and post-larval stages between the two hatchery systems was then determined. Results showed that the physico-chemical parameters obtained from the small-scale hatchery system were favorable to the survival of the larval stages of the prawn. However, the physico—chemical parameters obtained from the large-scale hatchery system were more suitable for the growth of the post-larval stages.
A descriptive study on how adolescents respond to value-bearing communication
Asong, Mariver A.; Bobe, Minnie Marie M.; Guadalquiver, Nanette L.; Jalover, Carol P.; Niembra, Lorlyn C.; Rasmo, Anna Vina Lisa L.; Salazar, Ma. Jonalyn U.; Tupas, Euridice L. (Division of Humanities, College of Arts and Sciences, University of the Philippines Visayas, 1995-03)
This study is an attempt to re-validate the study framework of Dr. Jacobson Kliatchko, which he used in his dissertation entitled, Communication and Attitude Development: A Philosophical Perspective. The framework deals with the development of attitudes after exposure to value-bearing communication. Because this study does not deal with the cause and effect relationship, the variables are rather called as components. The components of such study framework are: environment, value-bearing communication, and attitude. In this study, the environment is Marillac Academy. The value-bearing communication is the module on good study habits. And the attitude is the study habits of the respondents. needed data. Purposive sampling was used to determine the respondents. The essays and interviews with the students and the questionnaires filled up by the parents were the instruments designed to elicit the needed data. The general objective of this study is to determine how adolescents respond to value-bearing communication. Results reveal that although most of the respondents did not follow their study schedule, all of them have allotted time for their studies as reflected by the filled up observation sheets accomplished by the parents. This suggests that there is favorable response on the part of the respondents towards value-bearing communication. The study framework of Dr. Kliatchko that was used in the study shows that there is indeed an attitude formed when a value-bearing communication is inputted to a certain environment.
Effects of freezing and thawing on some agar parameters of Eucheuma spinosum and Gracilaria confervoides
Abelende, Ma. Orfa R. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1995-05)
Agar was extracted from two agar-containing red algae species, namely Gracilaria confervoides and Eucheuma spinosum. Qualitative assessment was made on the agar extracts, which included percentage yield, gel strength, syneresis, and hysteresis range. The quality of agar extracts derived from this study was compared to commercial agar-agar. The. effects of each parameters, repeated freezing and thawing on agar were also investigated. Qualitative test showed that percentage yield from Gracilaria was higher than Eucheuma. Gel strength and hysteresis range of agar from commercial sources and Gracilaria were higher compared to Eucheuma. On the other hand, syneresis range was highest in Eucheuma agar. Repeated freezing and thawing lowered percentage yield and syneresis but increased gel strength and hysteresis of agar extracts from agar sources used.
A comparison on the effect of light on melanophore differentiation in the larval stage of frog, Hyla sp.
Araneta, Merrie Celine E. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1996-03)
Three set-ups were exposed to different experimental conditions namely: set-up A. under prolonged light: set-up B. under prolonged darkness: set-up C. under normal condition. Observation was done under the dissecting microscope from the first appearance of melanophores until the migration was stabilized. The pattern of differentiation was observed to be the same in all set-ups. only the distribution and the color intensity differred. B was the darkest and C was the lightest. It only showed that light could not, alter the pattern of melanophore differentiation, only the distribution.
Age and sex of Miagao public market vendors as determining factors in role preferences on women as portrayed in comic books
Alvarez, Lee T.; Cababa-an, Glenn C.; Diaz, Gladys C. (Division of Humanities, College of Arts and Sciences, University of the Philippines Visayas, 1996-03)
This research is about age and sex as determining factors in role preferences of the respondents on women as portrayed in comic books. The researchers have chosen the market vendors of Miagao as respondents in this particular study for the reason that most market vendors, if not all, do read comic books. The researchers were able to gather a total of seventy [70] respondents. Of the seventy [70] respondents, thirty-two [32] or forty-six percent [46%] are males and thirty-eight [38] or fifty-four percent [54%] are females. In this study, it was found out that most of the respondents read comic books with the love theme and only a few read comic books having mixed themes. The researchers have also discovered that both the male and female respondents agree that women in most cases were presented in a more conservative rather than in the liberal light. Chi-square statistical tool with .05 level of significance was used and it resulted to the finding that there is no significant relationship between the age, the sex and the preference of the respondents with regards to the roles of women a® portrayed in our local comic books.
Effect of positive mood on the children's impression-formation judgement
Agrazada, Divine Grace (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1996-04)
The study was conducted to determine if positive mood enables children to form positive judgments rather than negative judgments. The study was based on a two—randomized group design. Experimental group was induced in a positive mood and the control group was manipulated with a neutral mood. Neutral mood was also induced to a group of participants to provide a control condition for aid in interpretation of the results. The researcher induced mood through film showing. This method appeared to be the most suitable mood—manipulation technique in the present circumstances. With children , In particular as subjects, videotaped films represent a most suitable and familiar medium for influencing mood. After mood manipulation was completed, the subjects were shown pictures of different persons. These persons served as stimulus characters. Each of the stimulus characters was rated on a IO—centimeter scale as being more closely related to one or the other pair of opposite traits. Thus, participants were asked to write a small vertical line on the 10—centimeter scale to indicate their rating. Results did not show enough evidence for the researcher to conclude that a significant difference in impression—formation judgment will come differentially from positive mood and neutral mood. Based on the findings, children with positive mood and neutral mood both have positive judgments rather than negative judgments. Therefore the researcher concludes that transient mood has no pronounced effect on impression—formation judgment on this study .
A preliminary study on the extraction of alginic acid from three species of brown algae: Sargassum polycystum, Sargassum cristaefolium and Turbinaria sp. in Taklong Is.,Guimaras
Adelantar, Geoffrey V. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1996-04)
Three species of brown algae were harvested in Taklong Is., Guimaras. These were Sargassum polycystum, Sargassum cristaefolium, and Turbinaria sp. These brown algae were subjected to physical and chemical treatment to extract and compare the amount of their alginic acid in the form of sodium alginate. Four seaweed collections for extraction were made between August to December, 1995. Values obtained during the first three extractions gave almost similar results. S. polycystum exhibited the highest percentage yield of sodium alginate with a mean of 22.84%. It was followed by S. cristaefolium at 22.21%. Turbinaria sp. gave the lowest yield with a mean of 14.12%. The last extraction somehow showed a decrease in the percentage yield of all three samples. S. polycystum yielded just 20.00%, S. cristaefolium at 19.00% and Turbinaria sp. at just. 10.10%. Several factors may have contributed to the differences in the amount of alginic acid of the three species of brown algae. Among these are the inherent capability of the different species of brown algae to produce alginates, the thickness and sturdiness of the samples, the viscosity of the extracts, and seasonal changes.