A5056940315- Fish Ecology and Management Studies
- Freshwater macroinvertebrate diversity and ecology
- Aquatic Invertebrate Ecology and Behavior
- Water Quality and Pollution Assessment
- Aquatic Ecosystems and Phytoplankton Dynamics
- Soil and Water Nutrient Dynamics
- Pesticide and Herbicide Environmental Studies
- Marine Biology and Ecology Research
- Environmental Toxicology and Ecotoxicology
- Environmental DNA in Biodiversity Studies
- Fish Biology and Ecology Studies
- Invertebrate Taxonomy and Ecology
- Marine and fisheries research
- Coastal and Marine Management
- Marine Invertebrate Physiology and Ecology
- Water resources management and optimization
- Marine and coastal ecosystems
- Karst Systems and Hydrogeology
- Marine Bivalve and Aquaculture Studies
- Heavy metals in environment
- Hydrology and Drought Analysis
- Water Resources and Management
- Microbial Community Ecology and Physiology
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic Ecosystems and Biodiversity
University of the Philippines Diliman
2010-2024
Universidade Federal do Paraná
2021
National Center for Ecological Analysis and Synthesis
2021
Helmholtz Centre for Environmental Research
2021
University of the Philippines System
2020
University of Otago
2010-2015
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals mobilisation substantial resources. While reasons are varied, investments in both research conservation lag far behind those terrestrial marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five areas, an effort to support informed stewardship biodiversity. The proposed agenda aims advance globally as critical step improving...
Summary 1. Organic farming practices can benefit a wide range of terrestrial biota in comparison to conventional but we do not know whether this extends streams flowing through farmed landscapes. 2. We measured the impacts organic, integrated management and on taxonomic trait composition macroinvertebrate communities stream ecosystem functioning (algal accrual tiles leaf breakdown). Our study design included five replicates each practice, arranged blocks, agricultural land dedicated sheep...
Summary Previous research on the combined action of various paired agricultural stressors in stream ecosystems has shown that non‐additive outcomes (i.e. synergisms or antagonisms) are more common than simple additive effects communities, but interplay between deposited fine sediment and widely used herbicides such as glyphosate is not well understood. A 28‐day experiment outdoor mesocosms simulated varying levels a glyphosate‐based herbicide macroinvertebrates ecosystem function (leaf...
Pesticides and deposited fine sediment have been associated independently with changes in relative abundance number of sensitive species aquatic ecosystems, but the interplay between these stressors agricultural streams is poorly understood. We used a 28-d experiment outdoor streamside mesocosms to examine effects varying levels glyphosate-based herbicide on 2 important aspects macroinvertebrate community dynamics, invertebrate drift adult insect emergence. applied 4 each stressor full...
Unsustainable urbanization in the Indo-Pacific continues to threaten terrestrial and aquatic ecosystems due habitat disturbances driven by human pressures. The Marikina Watershed, one of most critical watersheds Philippines, has been exposed economic population growth resulting landscape modification water quality degradation. This led establishment Upper River Basin Protected Landscape (UMRBPL) rehabilitate watershed ecosystem. To strengthen this conservation initiative, we aimed assess...
Freshwater biodiversity is declining dramatically, and the current crisis requires defining bold goals mobilizing substantial resources to meet challenges. While reasons are varied, both research conservation of freshwater lag far behind efforts in terrestrial marine realms. We identify fifteen pressing global needs support informed stewardship. The proposed agenda aims advance globally as a critical step improving coordinated action towards its sustainable management conservation.
Industrial zones have been key drivers of growth across Asia but are also the source water quality deterioration in surrounding rivers and streams. This study examined effects industrial zone located at San Cristobal sub-catchment Laguna de Bay, Philippines on spatiotemporal variation benthic macroinvertebrate communities. Sampling sites were established upstream downstream sections two tributaries River, main channel Diezmo sampled 2018 during dry (February April) rainy (June October)...
Functional feeding group (FFG) is an approach that classifies macroinvertebrates based on their utilization of organic matter food resources. Across streams and rivers, variations in the distribution FFGs reflect unequal resources, which are affected by varying environmental conditions disturbances to ecosystem. In tropics, does not follow pattern observed temperate streams. This study aims (1) determine present selected Philippine tropical streams, (2) assess FFG distributions how vary...
In the Philippines, ecology of microcrustaceans from groundwaters and their dependent ecosystems remain poorly understood, yet knowledge about this group can elucidate patterns in groundwater biodiversity to develop sound conservation policies. study, were studied by collecting samples 102 groundwater-dependent ecosystems, including 51 artesian wells, 23 caves, 14 springs, piped pumps during dry (Nov 2014 Apr 2015) wet (May–Oct seasons. Results indicate presence 21 species Cladocera...
Intensive aquaculture in natural lakes has been shown to have negative effects on biodiversity. We conducted a study the diversity and distribution of macro-gastropods (>1 cm) three major used for Luzon, largest island Philippines archipelago, provide baseline information freshwater gastropods. Collections were made 27 sampling sites all lakes. The samples identified by examining shell radula. gastropod collection comprised 13 species six families, including 12 new records Laguna de Bay...
Zooplankton are key ecosystem components in the pelagic food web. These organisms move vertically to avoid visual predators (i.e., fish) that prey on them; such movement is known as diel vertical migration (DVM). This study aims elucidate dynamics of daily zooplankton and determine factors govern their behavior an understudied Philippine Lake Wood (Mindanao Island) from March April 2019. several environmental parameters were sampled deepest part lake at specific depths (1 m, 15 30 50 70 m)...
Macroinvertebrates have been used globally as bioindicators of water quality rivers due to their varying tolerance pollution. The Tambis River in Palompon, Leyte, Philippines was determined using macroinvertebrates and selected physico-chemical ecological assessments. Employing kick-sampling method, three sampling stations were established based on the surrounding land use (forested, agricultural, near residential). Twenty-seven macroinvertebrate families identified. Permutational...
Abstract Littoral phytoplankton and zooplankton diversity are influenced by the water quality parameters their trophic interactions. In largest reservoir of Philippines, this study examined plankton community composition in littoral zone across three sampling sites four depths. Of sites, one is located near active fish cages, mouth a tributary an outlet upstream dam. A total 36 34 taxa were identified, with most belonging to Chlorophyta Cyclopoida. The abundant Aulacoseira Microcyclops,...
<title>Abstract</title> Phytoplankton Index of Biotic Integrity (Phyto-IBI) is a multi-metric index designed to simplify extensive datasets into single dimensionless value that could assess ecosystem health. The Seven lakes provide various services from which different stakeholders’ benefit. However, these are continuously experiencing disturbance because anthropogenic activities. This research aimed develop P-IBI and Organic Pollution (OPI) for the seven lakes. was developed using 21...
Relatively limited information exists on Lake Wood’s limnology and ecology, an ancestral lake of the Subanens. Here, we provide a limnological characterization – exploring its physical, chemical, biological features. The data morphometry were gathered using echosounder; lower depth water samples collected Niskin sampler for physicochemical analyses while surface at five sampling sites phosphate (PO4) analysis; zooplankton several depths through vertical towing in March–April 2019. Wood,...
Abstract The original description of Diaptomus vexillifer Brehm, 1933, endemic to Lake Danao (Leyte Island), was elementary and lacking taxonomically satisfactory characters. In this paper, we redescribe the Philippine-endemic genus Filipinodiaptomus Lai, Mamaril Sr. & Fernando, 1979 species D. collected from its type locality, using light scanning electron microscopy an analysis mtCOI gene ITS nuclear 18S operon. We found that is second under genus. A neotype paraneotypes are hereby...