Miagao, Philippines

The University of the Philippines Visayas, also known as UPV and UP Visayas, is a public research university in the Philippines, and one of the units of the University of the Philippines System. It is one of the most prominent educational institutions in the Visayas, especially when it comes to management, accountancy, marketing, economics, chemistry, applied mathematics and physics, marine science education and research, fisheries, and aquaculture. It offers regional studies programs on the preservation and enrichment of the Visayan cultural heritage as well as a full complement of other subjects and majors.U.P. Visayas has three campuses--Miagao, Iloilo City, and Tacloban—with Miagao being the main campus with its central administration offices. The University of the Philippines Cebu College was part of UP Visayas but it separated in September 2010,.Most of UPV's students are drawn from the Visayas and the Visayan linguistic groups. Many of the leaders of the Visayas have graduated from U.P.V. or its predecessor institutions.As of 2007, the Philippines' Commission on Higher Education awarded four National Centers of Excellence/Development to UPV including Fisheries , Marine Science , and Biology . Wikipedia.

Time filter

Source Type

Ganzon-Naret E.S.,University of the Philippines in the Visayas
AACL Bioflux | Year: 2013

A 12-week feeding trial was conducted to investigate the effect of green pea P. sativum as alternative protein source for fish meal on the growth performance, feed utilization and phosphorus excretion for Asian sea bass, Lates calcarifer. Four isonitrogenous (40% crude protein) and isolipidic (10% lipid) diets were prepared with the increasing substitution levels of green pea (GP) for fish meal (FM) at 0% (P0), 10% (P10), 20% (P20) and 30% (P30) with corresponding dietary protein levels at 0, 2.6, 5.2 and 7.8% respectively in a 40% protein diet. The weight gain (WG) of fish (19.69 g) fed P0 diet (control without GP meal) was comparable to fish fed P10 diet (17.75 g) but significantly (p < 0.05) higher than those fish fed P20 (14.62 g) and P30 (13.17g) diets respectively. Fish fed P30 diet had the lowest value for WG which might be attributed to the poor palatability of the diet as sea bass obviously ignore the pellets offered during the feeding. Partial replacement (about 10%) of fish meal in P10 diet produced fish with feed conversión (FCR) and protein efficiency (PER) comparable to the control fish but significantly higher (p < 0.05) than that of fish fed P20 and P30 diets. Fish fed control diet had the highest survival (93.33%) and feed intake (41.40 g/fish). These results were comparable with sea bass fed P10 diets (93.33%; 38.34 g/fish). The decrease in the percentage protein in the carcass was associated with the increasing dietary levels of GP in the diets. No significant differences (p > 0.05) were found in the percentage of lipid among the different treatments. The peak time for phosphorus excretion was observed after the first feeding at the end of 8 hrs. Fish fed P0 diet had the highest phosphorus excretion which was attributed to its high level of FM component whereas fish fed P30 diet had the lowest. It appears that green pea can replace fish meal at the level of 10% in diets for sea bass without adverse effects on growth, feed utilization or body composition and this may also contribute to environmental protection as well as reduce feed cost to sustain aquaculture.

A feeding trial was conducted for 12 weeks to evaluate the potential use of legume-based diets supplemented with dietary microbial phytase on the growth performance and feed efficiency of juvenile sea bass, Lates calcarifer. Fifteen sea bass juveniles (mean initial weight of 0.96 g and mean initial total length (TL) of 4.2 cm) were stocked at three replicates into each of the twelve 100 L conical fibreglass tanks containing 90 L sea water in a closed recirculating system with filtered and aerated sea water. Four isonitrogenous, isolipidic and isocaloric experimental diets were formulated. The control diet (C0) contained fish meal, soybean meal, shrimp meal and squid meal as major protein sources. Legume seed meals of pigeon pea (Cajanus cajan), yellow mungbeans (Phaseolus aureus), and green mungbeans (Vigna radiata) were incorporated in the practical diets D1, D2 and D3 respectively at 18-20% replacing an equivalent amount of 6-7g fish meal protein and supplemented with microbial phytase at the level of 300U kg-1 diet. Growth rate, feed conversion ratio (FCR), protein efficiency ratio (PER) and apparent net protein utilization (ANPU) of sea bass were significantly (P < 0.05) higher in control diet than those given different legume based diets supplemented with phytase. Histological examination of the liver tissues for the different dietary treatments did not manifest any abnormalities. Phytase supplementation also improved bone ash, phosphorus (P) concentration as well as P content in the carcass for fish in legume fed groups. Results from the present study showed that incorporation of dietary microbial phytase in legume based diets slightly improve the growth performance and P availability in sea bass juveniles.

Serrano Jr. A.E.,University of the Philippines in the Visayas
Israeli Journal of Aquaculture - Bamidgeh | Year: 2013

The ontogenetic pattern of an endopeptidase (chymotrypsin) and two exopeptidases (carboxypeptidases A and B) in larvae of the mud crab, Scylla serrata, are described. Specific activity of chymotrypsin was detected in all larvae stages. The activity was about 25% of the maximum at stage Z1, doubled at Z2 and Z3, declined to 40% at Z4 and Z5, abruptly increased to maximum activity during the megalopa stage, and fell to about 33% at the first crab stage, CI. Carboxypeptidase A activity was low at Z1, gradually increased from 4% to 13%, 19%, and 27% of the maximum at Z5, markedly increased to 68% at the megalopa stage, and finally peaked at CI. Carboxypeptidase B activity started at 9%, declined to 4%, abruptly increased to almost 50% at Z3, remained high at Z4, Z5, and the megalopa stage (50%, 61%, and 50% of the maximum), and finally peaked at CI. The overall changes could be related to changes in diet and feeding habits, or to behavioral, mechanical, and physiological changes, or their combination during development of S. serrata larvae.

Serrano A.E.,University of the Philippines in the Visayas
Aquaculture Nutrition | Year: 2013

Common carp were fed diets containing various levels of Quillaja saponins (QS) (0, 150, 300 and 450 mg kg-1 dry diet) in a completely computerized respirometric system for 4 weeks. Fish fed diets containing QS exhibited significantly higher ABW and specific growth rate than did those fed the control diet; those fed diets containing QS 150 grew fastest but were not significantly different from those fed diets with QS 300 and QS 00450. All the utilization efficiency indices, namely food conversion efficiency (FCE), protein productive value and PG were increased by QS supplementation. There were no significant differences in the average routine metabolic rate between treatments, indicating that dietary QS at the levels tested were not toxic to the carp. Increases in amylase and trypsin specific activities were observed at QS 300 and QS 450. Enzymes of carbohydrate metabolism such as G6PDH, 6-phosphogluconate dehydrogenase and pyruvate kinase were not significantly affected by dietary QS. Activities of the aerobic enzyme Cox and to a limited extent that of the anaerobic enzyme lactate dehydrogenase were significantly increased by dietary QS but the net effect was a shift towards aerobic metabolism, indicating absence of stress and favouring the anabolic processes. Thus, Quillaja saponin was beneficial as a feed supplement in the common carp. © 2012 John Wiley & Sons Ltd.

Baquiano M.J.,University of the Philippines in the Visayas
Ocean and Coastal Management | Year: 2016

This study utilizes Social Representations Theory to uncover how some residents of a coastal community in Iloilo, Philippines collectively comprehend coastal resource management. Interviews were conducted among community members, local officials, and personnel implementing the community's Coastal Resource Management (CRM) Program. Meanings constructed concerning management of coastal resources revolve around four main themes: environmental, economic, social, and political storylines. Environmental narratives center on protection of coastal resources while economic accounts focus on financial implications of coastal resource (mis)management. Social storyline alludes to the community's collective (un)involvement in safeguarding their natural resource while political discourse zeroes in on the local government and its CRM program implementation along with the issues and discords surrounding the operation. Results lend support to the value of Social Representations Theory in understanding how groups co-create their shared reality; as well as point toward the theory's practical relevance in addressing current environmental issues. © 2016 Elsevier Ltd

Balena R.,University of the Philippines in the Visayas
Ocean and Coastal Management | Year: 2015

The Guimaras oil spill of 2006 was the worst environmental accident of the Philippine and coincidentally happened during a period of rapid progress in nationwide communication technology. This study took advantage of the massive media coverage of the incident to answer questions about the priority needs of the affected population, the prominent disaster response, and the rationale for the response. Techniques were combined to implement a descriptive analysis of the available information-interview of key respondents and news survey, substantiated by a document analysis of hardcopy and online materials, and content mapping in the integration and analysis.The priority needs of the oils spill victims were few and basic-a plain consequence of economic and physical dislocations. Yet, these needs were inadequately met because the many forms of disaster response "diluted" the relief operation and further spawned unwarranted issues that aggravated the situation. Habitat assessment and rehabilitation, especially of mangroves, emerged as the prominent response. Aggressively pushed by experts and advocates, it competed with and overshadowed the priority action on the distressed population.The environmental response is linked to a lingering foreign crusade. The environmentalism is unregulated and turning adverse, but it continually succeeds because, apart from its domineering advocacy, as foreign imposition, the society is naturally resilient to it, Philippine laws support it and, particularly, even intellectuals espouse it. Moreover, there exists a large pool of potential environment advocates in the country with hardly 1% of which being development-oriented.Other failures of the disaster response are discussed. The aftermath rippled with issues on litigations, irregularities and continuing research. © 2014 Elsevier Ltd.

Serrano A.E.,University of the Philippines in the Visayas
Der Pharma Chemica | Year: 2015

The present study aimed to characterize chymotrypsin-like enzymes in three species, namely the mudcrab Scylla serrata, the brine shrimp Artemia salina and the rotifer Brachionus plicatilis. Optimized conditions of assay were established in terms of the volume of crude extracts used and the time of reaction. The crab enzyme was the most affected by pH showing big increases in its activity until pH 8.0 and abruptly decreased beyond this level. The Artemia chymotrypsin exhibited maximal activity at 7.0-7.5 while the rotifer enzyme was the least affected by pH with small increases in its activity until its maximum level at pH 8.5. The stability of the mud crab enzyme was the most affected by pH; the Artemia and the rotifer enzymes exhibited maximal activity at 7.0 to 7.5. The enzyme activity of the mud crab was maximal at 30°C and decreased abruptly at higher temperature. In contrast, the Artemia chymotrypsin-like activity was practically unaffected by temperature and the rotifer enzyme exhibited maximal activity at 25°C and gradually decreased with increased temperature. Thermal stabilities were slightly affected in all three species;a small peak was observed in the mud crab enzyme at 25°C. The rotifer and the Artemiaenzyme stabilitydecreased slightly and linearly with temperature. The determined Km for benzoyl-Ltyrosineethyl ester (BTEE) of the rotifer, Artemia, and the crab chymotrypsin -like enzymes were estimated to be 1.3, 0.4 and 0.5 nmol N-benzoyl-L-tyrosine produced min-1mg protein-1, respectively. Conclusion: Chymotrypsin-like enzymewas stable at alkaline pH and at room temperature or above for all three species. The Artemia and the mud crab chymotrypsin-like activity manifested higher substrate-enzyme affinity in contrast with the rotifer enzyme which exhibited the least affinity.

Araujo P.,National Institute of Nutrition And Seafood Research | Janagap S.,National Institute of Nutrition And Seafood Research | Janagap S.,University of the Philippines in the Visayas | Holen E.,National Institute of Nutrition And Seafood Research
Journal of Chromatography A | Year: 2012

A protocol for the analysis of multiple prostaglandins and leukotrienes in cell culture media by using multiple internal standards was validated. A two-factor Doehlert design was used to determine the behaviour of the relationship analyte/internal standard (namely: PGE2/PGE2-d4, PGE3/PGE2-d4, LTB4/LTB4-d4 and LTB5/LTB4-d4) and to select the optimal amounts of deuterated internal standards for quantifying simultaneously the prostaglandins and leukotrienes in cell culture media by LC-MS/MS. The selection of optimal amounts of internal standards was based on mathematical models that allow visualizing concentration regions where the response factors remain constant over a wide range of analytical concentrations. The linearity of the calibration curves for each analyte at the optimal levels suggested by the mathematical models was statistically confirmed by means of the ratio lack-of-fit to pure error. The validated protocol was successfully applied in the simultaneous quantification of pro- and anti-inflammatory eicosanoids in stimulated cod head kidney cell culture media. The two-factor Doehlert design has permitted to estimate the experimental response as a function of six variables (PGE2, PGE3, LTB4, LTB5, PGE2-d4 and LTB4-d4) which represents a substantial reduction of resources, time and experiments of approximately 84% (7×3 experiments) when compared with the full six-factor Doehlert design (43×3 experiments). © 2012 Elsevier B.V.

Andalecio M.N.,University of the Philippines in the Visayas
Agronomy for Sustainable Development | Year: 2010

The crisis in the world's fisheries is attributed to excessive fishing pressure, long-term mismanagement, increased population growth, development and improvement of fishing technologies, uncertainty in global fisheries catch data, economic incentives and subsidies, and increasing demand for fish meal. For the coastal fisheries of developing countries, the problem is aggravated by coastal habitat degradation, widespread poverty in coastal communities, inshore encroachment of commercial fishing vessels, use of illegal and destructive fishing methods, resource use conflicts, pollution from uplands, and weak institutional arrangements. In response to these problems and in the hope of reversing their negative effects, fisheries management strategies have emerged for tropical coastal fisheries during at least the past 30 years. In fisheries, it is crucial to determine the outcomes of management strategies, especially when public money has to be accounted for. However, efforts to assess their impacts or measure progress are usually directed towards a single disciplinary approach, which fails to consider the multi-dimensionality of tropical fisheries including concomitant multi-level and conflicting goals and objectives. This article explores the utility of a multi-criteria type of evaluation as a potential analytical approach in impact evaluation for tropical fisheries management. The general framework of a multi-criteria evaluation method is a two-dimensional matrix composed of different choice possibilities including the set of criteria and indicators that will serve as bases in assessing these choice possibilities. The literature presents various criteria and indicators in fisheries management evaluation, the kinds and number of which would depend on stated goals and objectives of fisheries and the availability of resources to acquire the information. The type of measurement, i.e., quantitative or qualitative, and the weighing of criteria and indicators are crucial in the evaluation process because they determine the multi-criteria aggregation approach to be used. Moreover, the participation of stakeholders and coastal resource users is crucial in complementing scientific information, in developing acceptable solutions, and in reducing conflicts and distrust in the evaluation and decision-making process. While many aggregation models in multi-criteria analysis in natural resource management exist, this article limits its review to only six models: the analytic hierarchy process, the weighted sum model, the ordination technique, concordance analysis, the regime method and Evamix; which are viewed to be applicable to the structure of decision-making in tropical fisheries management. This article also examines the performance of some of these models through a case study that determines the impacts of fisheries management strategies in San Miguel Bay, Philippines. The review reveals the following: (1) among the aggregation approaches, the analytic hierarchy process and ordination technique had the highest number of applications in fisheries while none was found for concordance analysis, the regime method or Evamix; (2) the application of hybrid models in multi-criteria analysis is increasing and found to be effective in many environmental decision problems including fisheries; (3) the application of multi-criteria decision models to fisheries management is relatively scarce during the last 10 years; only 26 papers were found in peer-reviewed journals; and (4) in the choice of model, its technical assumptions and limitations, its appropriateness for a specific decision-making problem, and its ability to handle the situation correctly vis-à-vis contextual, technical and political concerns should be considered. © 2010 INRA, EDP Sciences.

Andalecio M.N.,University of the Philippines in the Visayas
Ocean and Coastal Management | Year: 2011

This paper examines an approach that integrates the judgment and perceptions of coastal resource users in prioritizing the criteria and indicators for fisheries management impact evaluation. Five criteria with corresponding indicators were identified and selected namely, acceptability, biotic diversity, economic performance, enforceability, and equity. The weights of importance of criteria and indicators were determined through the Analytic Hierarchy Process applied in a case study with 23 resource user groups (categorized as fishers, local government unit, non-government organization, private sector and women) in San Miguel Bay, Philippines.The results of this study revealed that overall, acceptability is the most important criterion in evaluating the impacts of fisheries management strategy in San Miguel Bay, especially for the local government units and fishers groups. The best measure of acceptability criterion are the indicators resource users participation in fisheries management process, level of awareness of resource users in fisheries resource management and number of fishers who belong to an organization. Ten groups have consistency ratios between 0.0 and 0.08 which are within the acceptable level of 0.10. Conversely, most groups (78%) have consistency ratios less than 0.26. Also, the results of the preference analysis are remarkable because among the representative groups, most fishers groups exhibited consistencies in their judgments (average consistency ratios of 0.06-0.08). Economic performance indicators were consistently judged across groups indicating that individuals present higher convergence of views toward economic objective. © 2011 Elsevier Ltd.

Loading University of the Philippines in the Visayas collaborators
Loading University of the Philippines in the Visayas collaborators