María Borrego-Ramos

María Borrego-Ramos
Universidad de León | UNILEON · Instituto de Medio Ambiente, Recursos Naturales y Biodiversidad

MSc Marine Biology

About

22
Publications
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203
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Introduction
Skills and Expertise

Publications

Publications (22)
Article
Full-text available
Benthic diatoms have traditionally been used as bioindicators of aquatic ecosystems. Because diatom-based monitoring of water quality is required by European legislation, molecular-based methods had emerged as useful alternatives to classical methods based on morphological identification using light microscopy. The aim of this study was to test the...
Article
Diatoms are important organisms in freshwater ecosystems due to their position as primary producers and therefore, analyzing their assemblages provides relevant information on ecosystem functioning. Diatoms have historically been identified based on morphological traits, which is time-consuming and requires well-trained specialists. Nevertheless, D...
Article
Full-text available
Diatoms are important organisms in freshwater ecosystems due to their position as primary producers and therefore, analyzing their communities provides relevant information on ecosystem functioning. Diatoms have historically been identified based on morphological traits, which is time-consuming and requires well-trained specialists. Nevertheless, D...
Article
The present study refers to the effect of metal pollution on diatoms by describing a new form of teratology. The samples were collected in the Abrud River, located in a mining area from Romania, where an unreported type of deformity is observed in the diatoms Achnanthidium sp. pl. This kind of teratology has been found in the 20.5% of individuals o...
Article
Aquatic macrophytes can play an important role as substrata for benthic diatom assemblages, which constitute the greater part of the epiphytic algae in shallow ponds. This article addresses the question of whether diatom assemblages growing on dead stems differ from diatom assemblages growing on living helophytes. Three lakes in the province of Leó...
Book
Full-text available
Las diatomeas son un grupo de algas microscópicas extremadamente diversificado que viven en los ecosistemas acuáticos de todo el mundo, a pesar de lo cual los estudios sobre estos organismos en la región del Estrecho son escasos. Esta monografía presenta el primer estudio sistemático sobre las diatomeas de Ceuta, describiendo más de 250 especies en...
Preprint
Full-text available
There have been a number of studies that described a serial of type of teratology occurring in different diatom taxa and that highlight the relation between metal concentration and diatom deformities, but this subject still remain not deeply understood. The present study refers to the effect of metal pollution on the diatom Achnanthidium minutissim...
Article
Full-text available
From a biological point of view, karst caves are important subterranean ecosystems, but remain to date relatively poorly studied. The diversity in this kind of habitat is usually low due to scarce light availability with resulting lack of primary productivity. In the case of show caves, the artificial illumination allows the colonization by phototr...
Article
Full-text available
Accurate taxonomic resolution in light microscopy analyses of microalgae is essential to achieve high quality, comparable results in both floristic analyses and biomonitoring studies. A number of closely related diatom taxa have been detected to date co-occurring within benthic diatom assemblages, sharing many morphological, morphometrical and ecol...
Article
Full-text available
Many biological objects are barely distinguished with the brightfield microscope because they appear transparent, translucent and colourless. One simple way to make such specimens visible without compromising contrast and resolution is by controlling the amount and the directionality of the illumination light. Oblique illumination is an old techniq...
Article
Full-text available
Metal pollution of aquatic habitats is a major and persistent environmental problem. Acid mine drainage (AMD) affects lotic systems in numerous and interactive ways. In the present work, a mining area (Roșia Montană) was chosen as study site, and we focused on two aims: (i) to find the set of environmental predictors leading to the appearance of th...
Article
Full-text available
This paper deals with automatic taxa identification based on machine learning methods. The aim is therefore to automatically classify diatoms, in terms of pattern recognition terminology. Diatoms are a kind of algae microorganism with high biodiversity at the species level, which are useful for water quality assessment. The most relevant features f...
Conference Paper
Full-text available
Aquatic macrophytes can play an important role as substrata for benthic diatom communities. Diatoms constitute the most part of the epiphytic algae in shallow lakes. This study addresses the question whether if diatom assemblages growing on dead stems differ from those growing on living helophytes. Three lakes in Leon (Spain NW) were selected in or...
Article
Full-text available
Diatoms, a kind of algae microorganisms with several species, are quite useful for water quality determination, one of the hottest topics in applied biology nowadays. At the same time, deep learning and convolutional neural networks (CNN) are becoming an extensively used technique for image classification in a variety of problems. This paper approa...
Poster
Full-text available
Roșia Montană (Rumanía) es una zona con una conocida tradición minera, extendida durante más de 2000 años, y que probablemente alberga el mayor depósito de oro de Europa. Actualmente, presenta un significativo deterioro debido a la duración de la actividad minera. El bajo pH da lugar a unas características químicamente agresivas, además de la signi...

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Projects

Projects (7)
Project
This project focuses on the study of the relative importance of local and dispersive factors on the alpha and beta biodiversity patterns of aquatic communities through a spatial nested design in selected groups of lakes in which local factors (hydroperiod, size) are combined with spatial factors (intra-group connectivity and distance between groups). The final objective of the project is to know the importance, characteristics and spatial extent of the metapopulation and metacommunity dynamics in Mediterranean shallow lakes and to evaluate the interest that this approach can have in the management and conservation of these ecosystems. An attempt will be made to evaluate, among other measures, the need to prioritize systems networks instead of single lakes (current criteria under the WFD criteria), or the convenience of managing connectivity between gaps rather than prioritizing water persistence (regular ecosystem management in temporary lakes). The results of this project could have important contributions to the adaptation of the WFD to the characteristics of shallow Mediterranean lakes and to measures related to the conservation of lakes and wetlands under the influences of environmental and agrarian policies, both local (land management) and European (ZEPA, PAC).
Project
The Urban algae project aims to study the ecological status of urban ponds and their ecosystem services together with the citizen´s perceptions. To this end, we will combine a sampling campaign during the summer 2018 in multiple locations across Europe with an online citizen survey questionnaire. With this set-up, we want to know what the public thinks about their ponds and if this is related to the ecological status of the relevant ponds. The second important goal of this initiative is to create an international collaborative network, encouraging young and early career scientists in Europe. This project provides an excellent chance to actively participate in an interdisciplinary project and meet other young researchers!
Project
El objetivo fundamental del proyecto es relacionar la tasa de recuperación de comunidades microbianas crípticas (meiofauna y diatomeas bentónicas), tras los procesos de secado frecuentes de ecosistemas lagunares temporales, con las características mineralógicas y la estructura de materiales de los mismos en condiciones de una rehidratación tras la traslocación de los sedimentos a otros ambientes diferentes al original.