Pedro Ramírez

ORCID: 0000-0003-1410-4495
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About
Contact & Profiles
Research Areas
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Water Quality and Resources Studies
  • Water Quality and Pollution Assessment
  • Analytical chemistry methods development
  • Coastal wetland ecosystem dynamics
  • Environmental Toxicology and Ecotoxicology
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Fish Ecology and Management Studies
  • Vibrio bacteria research studies
  • Marine and coastal plant biology
  • Marine and coastal ecosystems
  • Peatlands and Wetlands Ecology
  • Microplastics and Plastic Pollution
  • Soil Science and Environmental Management
  • Clinical Reasoning and Diagnostic Skills
  • Selenium in Biological Systems
  • Freshwater macroinvertebrate diversity and ecology
  • Innovations in Medical Education
  • Water Quality Monitoring and Analysis
  • Heavy metals in environment
  • Legionella and Acanthamoeba research
  • Fish Biology and Ecology Studies
  • Water Resource Management and Quality
  • Environmental and Cultural Studies in Latin America and Beyond
  • Wildlife-Road Interactions and Conservation

Universidad Nacional Autónoma de México
2011-2025

London Rebuilding Society
2025

Weatherford College
2023

Autonomous University of Tlaxcala
1993-2020

Hospital Universitari i Politècnic La Fe
2020

TYPSA Group (Spain)
2018

United States Fish and Wildlife Service
1993-2015

National Metrology Center
2014

Instituto de Investigación Sanitaria La Fe
2014

Consejo Superior de Investigaciones Científicas
2013

ABSTRACT We collected rotifers during one year (2002–2003) from four different sites in Lake Xochimilco and analyzed the species diversity. found on an average 25–30 co-existing at any site, rotifer density was highest summer months. The common genera throughout were Brachionus, Keratella, Polyarthra, Trichocerca, Filinia Asplanchna, we often six to eight of Brachionus same sample. Keratella cochlearis K. tropica together, as Trichocerca similis, T. pusilla cylindrica. genus Asplanchna...

10.1080/02705060.2005.9664968 article EN Journal of Freshwater Ecology 2005-06-01

Microplastics (MPs) are emerging pollutants that ubiquitous in aquatic ecosystems and can affect the stability of food webs. They intentionally produced a size less than 5 mm for specific purposes or result fragmentation larger plastic debris. Zooplankton be affected directly by ingestion MPs indirectly interference caused suspended particles. Various environmental agencies recommend genus Moina assessing risk from water pollutants. However, this has received attention research compared to...

10.20944/preprints202504.0373.v1 preprint EN 2025-04-04

Mangrove wetlands provide many ecosystem services and support biodiversity. The diversity of epifauna on mangrove roots has not yet been well characterized in regions compared to other faunal groups, despite its importance for energy transfer. aim this study was integrate update the taxonomic list fauna associated with submerged red mangrove, Rhizophora mangle , fill an existing gap characterization mangroves Colombian Caribbean. A total 43 bibliographic sources met search criteria, from...

10.5343/bms.2023.0156 article EN Bulletin of Marine Science 2025-01-01

Microplastics (MPs) are emerging pollutants that ubiquitous in aquatic ecosystems and can affect the stability of food webs. They intentionally produced a size less than 5 mm for specific purposes or result fragmentation larger plastic debris. Zooplankton be affected directly by ingestion MPs indirectly interference caused suspended particles. Various environmental agencies recommend genus Moina assessing risk from water pollutants. However, this has received attention research compared to...

10.3390/biology14050555 article EN cc-by Biology 2025-05-16

10.1007/s00267-010-9557-4 article EN Environmental Management 2010-09-15

The occurrence of cyanobacterial blooms is a characteristic eutrophic inland water bodies. Valle de Bravo reservoir (Mexico State, Mexico) the main source for Cutzamala Hydraulic System, which supplies drinking to west Mexico City (~6 million consumers) and suburban areas State. goal this study was determine presence microcystins (MC-LR equivalents) their relationship with toxic populations cyanobacteria recorded some years ago in important reservoir. We measured concentration MC-LR...

10.5268/iw-4.3.573 article EN Inland Waters 2014-07-01

<p>Lake Xochimilco is a eutrophic water body in Mexico City used by the local population for aquaculture and agriculture. Water level maintained with inputs of partially treated waste from Cerro de la Estrella treatment plant. In this study we analysed quality at two sites Lake Xochimilco, Xaltocan Santa Cruz Canal using various indicators such as zooplankton diversity, saprobic indices, bacterial concentrations physico-chemical variables. Eighty litres was filtered each site, once...

10.4081/jlimnol.2015.1213 article EN cc-by-nc Journal of Limnology 2015-08-18

Under the auspices of Organic Analysis Working Group (OAWG) Comité Consultatif pour la Quantité de Matière (CCQM) a key comparison, CCQM K55.c, was coordinated by Bureau International des Poids et Mesures (BIPM) in 2012. Twenty National Measurement Institutes or Designated and BIPM participated. Participants were required to assign mass fraction valine present as main component comparison sample for CCQM-K55.c. The samples prepared from analytical grade L-valine purchased commercial supplier...

10.1088/0026-1394/51/1a/08010 article EN Metrologia 2014-01-01

[The authors studied the life table demography and population growth of Daphnia laevis using green alga iChlorella vulgaris cyanobacterium Microcystis aeruginosa (offered in colonial form) under two food concentrations (1 × 106 3 cells ml­1). The experimental design consisted types food, algae, each with three replicates. was same for both study growth. variables derived were: age specific survivorship, age-specific reproduction, average lifespan, expectancy, gross reproductive rate, net...

10.1163/156854000505254 article EN Crustaceana 2000-01-01

The study of the structure and dynamics assemblages benthic organisms has gained interest in recent decades because it can account for influence anthropogenic activities coastal zone be incorporated into management conservation plans.The region Zihuatanejo, Mexico, had an accelerated unplanned urban development, negatively affecting communities.However, studies on algal assemblages, as well some predominant physical factors this are scarce.The objective research was to carry out a...

10.3856/vol45-issue2-fulltext-9 article EN cc-by-nc-nd Latin American Journal of Aquatic Research 2017-05-10

Non-catalytic wet air oxidation removes pharmaceuticals efficiently from hospital wastewater in low chemical oxygen demand conditions.

10.1039/d1ew00203a article EN Environmental Science Water Research & Technology 2021-01-01

The increased demand for oil and gas places a burden on lands set aside natural resource conservation. Oil development alters the environment locally much broader spatial scale depending intensity extent of mineral extraction. current increase in exploration production United States prompted an update number pipelines wells associated with National Wildlife Refuge System (NWRS) lands. We obtained geospatial data location within close to boundaries NWRS (units) acquired as fee simple (i.e....

10.1371/journal.pone.0124085 article EN public-domain PLoS ONE 2015-04-27

Wyoming is one of a few states that allow the discharge produced water from oil fields into surface waters for beneficial use by livestock and wildlife. Oil field discharges create wetlands provide habitat aquatic migratory birds other Wetlands surveyed in 1996 to 1999 showed inefficient oil-water separation contributed some receiving water. Over 62% sites had inadequate measures exclude wildlife, particularly birds, entering skim pits used separate The risk can be reduced significantly...

10.1306/eg.11160404044 article EN Environmental Geosciences 2005-06-01
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