Juan Francisco Fuentes-Pérez
PhD in Information and Communication Technology
PhD in Conservation and Sustainable Use of Forest Systems

email: jfuentes@iaf.uva.es
address: Avd. de Madrid, 44 (Edificio A), 34004 Palencia, Spain

Curriculum Vitae (PDF) | Google Scholar | ResearchGate

Papers as first Author

(2019) Hydraulics of vertical slot fishways: Non-uniform profiles

Juan Francisco Fuentes-Pérez, Jeffrey A. Tuhtan, Mario Eckert,Filipe Romão, Maria Teresa Ferreira, Maarja Kruusmaa, Paulo Branco
In Journal of Hydraulic Engineering
Vertical slot fishways are subject to variations in discharge of either hydrological or operational origin, which result in non-uniform water depth profiles. Although non-uniform conditions are present in most VSFs, they are rarely considered in the design and evaluation of fishways. The aim of this work is to provide an introductory analysis of how non-uniform water depth profiles affect the hydrodynamics within the pools of VSFs.

 Paper (0.6MB) 

(2018) Spatial preferences of Iberian barbel in a vertical slot fishway under variable hydrodynamic scenarios

Juan Francisco Fuentes-Pérez, Mario Eckert, Jeffrey A. Tuhtan, Maria Teresa Ferreira, Maarja Kruusmaa, Paulo Branco
In Ecological Engineering
In this paper, we demonstrate the need to consider a wider range of fishway hydrodynamic scenarios for an integral assessment of fishways. To do this, the spatial distribution of Iberian barbel (Luciobarbus bocagei) in a full-scale model of a vertical slot fishway under three different hydrodynamic scenarios is investigated. Video tracking was used to analyze the fish’s spatial distribution, and an acoustic Doppler velocimeter and lateral line probe were applied to characterize the local hydrodynamic conditions of each scenario.

 Paper (2.5MB) 

(2018) Differential pressure sensors for underwater speedometry in variable velocity and acceleration conditions

Juan Francisco Fuentes-Pérez, Christian Meurer, Jeffrey A. Tuhtan, Maarja Kruusma
In IEEE Journal of Oceanic Engineering
In this work we built a full-scale physical prototype of a differential pressure sensor speedometry system to be used in torpedo-shape underwater vehicle and we evaluated the performance in variable velocity (0 to 2 m/s) and acceleration (0 to 2 m²/s) conditions in a marine tow tank.We conclude that differential pressure sensor speedometry is a valid solution to perform underwater speedometry and we confirm that the system can provide instantaneous and stable velocity estimates with a sampling rate higher than 10 Hz.

 Paper (1.6MB)   Video

(2018) 3D modelling of non-uniform and turbulent flow in vertical slot fishways

Juan Francisco Fuentes-Pérez, Ana T. silva, Jeffrey A. Tuhtan, Ana García-Vega, Ruth Carbonell-Baeza, Mark Musall, Maarja Kruusma
In Environmental Modelling and Software
In this study we highlight the necesity of considering non-uniform performance in the analysis of fishways. We demonstrate the benefits of 3D models to correctly characterize fishways, leveranging the synergy between 1D and 3D models. For this VOF method together with two turbulence modelling technics, RANS Standard k-ε and LES Smagorinsky models, are analyzed using OpenFOAM CFD platform.

 Paper (1.7MB) 

(2017) Map-based localization in structured underwater environment using simulated hydrodynamic maps and an artificial lateral line

Juan Francisco Fuentes-Pérez, Naveed Muhammad, Jeffrey A. Tuhtan, Ruth Carbonell-Baeza, Mark Musall, Gert Toming, Maarja Kruusma
In IEEE International Conference on Robotics and Biomimetics (ROBIO)
In this paper, using recent advances and methodologies for bioinspired flow sensing, we propose a map-based localization technique that employs simulated hydrodynamic maps. The proposed conceptual idea could be an interesting complement to perform localization in those underwater environments with structural maps and a heterogeneous hydrodynamic, such as dams, harbour structures, fishways, caves, swers or any other drowned structure.

 Paper (0.8MB) 

(2017) Villemonte's approach: A general method for modeling uniform and non-uniform performance in stepped fishways

Juan Francisco Fuentes-Pérez, Ana García-Vega, Fco. Javier Sanz-Ronda, Andrés Martínez de Azagra Paredes
In Knowledge and Management of Aquatic Ecosystems
This study aims to propose a general method for flow and water level calculation in stepped fishways considering the natural hydraulic variability of rivers. This will allow to assess fishways in nature-like scenarios and, therefore, contribute to the fulfillment of their main objective: allow free movement of fish fauna.

 Paper (1.1MB) 

(2016) Underwater vehicle speedometry using differential pressure sensors: Preliminary results

Juan Francisco Fuentes-Pérez, Kaia Kalev, Jeffrey A. Tuhtan, Maarja Kruusmaa
In IEEE/OES Autonomous Underwater Vehicles (AUV)
This paper presents preliminary results of a differential pressure sensing system capable of providing instantaneous flow speed estimation for underwater vehicles. The system performance is analysed using computational fluid dynamics and flow tunnel tests from 0-0.5 m/s and angles of attack up to ±45º. The proposed speedometry uses inexpensive hardware, is geometrically simple, accurate and has low power consumption making it suitable for a wide spectrum of underwater vehicles.

 Paper (0.5MB) 

(2016) Non-uniform hydraulic behavior of pool-weir fishways: A tool to optimize its design and performance

Juan Francisco Fuentes-Pérez, Fco. Javier Sanz-Ronda, Ana García-Vega, Andrés Martínez de Azagra Paredes
In Ecological Engineering
This study aims to model pool-type fishways with submerged notches and orifices under different water levels, and uniform and non-uniform performances. For this purpose, a real-scale fishway under 29 different hydraulic conditions is studied. The proposed new formulation together with a logical bottom-up iterative calculation can predict the observed water level distributions. The modeling under non-uniform profiles will allow to enhance and adapt fishways to achieve a greater fish passage during longer time periods.

 Paper (0.5MB) 

(2015) Current velocity estimation using a lateral line probe

Juan Francisco Fuentes-Pérez, Jeffrey A. Tuhtan, Ruth Carbonell-Baeza, Mark Musall, Gert Toming and Maarja Kruusmaa
In Ecological Engineering
The lateral line probe (LLP) mimics the performance of flow sensing modalities present in many aquatic vertebrates. So far, the application of LLPs have been limited to idealized conditions, subject to rigorous calibration. In this paper, we present an algorithm that allows the use of LLPs for current velocity estimation without sensor calibration. The algorithm is calibrated using a closed flume and results were compared with the measurements of a laser Doppler anemometer in a vertical slot fishway.

 Paper (1.1MB) 

(2015) Inventory and morphological characterization of high mountain lagoons and lakes in the provinces of Palencia and León (Spain)

Juan Francisco Fuentes-Pérez, Joaquín Navarro Hevia, Jorge Ruiz-Legazpi, Ana García-Vega
In Pirineos
High mountain lakes and lagoons are not a typical feature of the landscape of the Iberian Peninsula, but rather an exception in the natural environment, therefore its study and conservation presents great interest. This study arises to inventory and characterize a set of seventeen lagoon and their catchments located over the provinces of Palencia and León, without any kind of size restriction.

 Paper (1.7MB) 

(2014) Modeling Water-Depth Distribution in Vertical-Slot Fishways under Uniform and Nonuniform Scenarios

Juan Francisco Fuentes-Pérez, Fco. Javier Sanz-Ronda, Ana García-Vega, Andrés Martínez de Azagra Paredes
In Journal of Hydraulic Engineering
Vertical slot fishways are a type of fish pass of wide operating range. This study aims to model the performance of these structures, under uniform and nonuniform water profiles, using discharge coefficients involving the downstream water level together with a logical algorithm. The proposed formulation together with the algorithm have resulted in a method that enables the improvement of the performance of both existing and future vertical slot fishways.

 Paper (0.5MB) 

Technological Results

Coming soon: (2019) Escalas 2.0 and (2019) Smart Particle

(2018) DPSS V2

DPSS V2 is a small alternative of the differential pressure sensor speedometer (2016) designed to support higher depths. In addition to the characteristics offered by its predecessor, DPSS V2 offers the ability of recording data, registers 9-axis absolute orientation and depth. Its size ( D = 5 cm; L = 12 cm) and design make possible to adapt it to most of the AUV platforms.

 Dataset (x.xMB)

(2017-2018) Pressure Tag

PRESSURE TAG is a small sensor designed to monitor the pressure variations produced by depth changes or water level oscilations and 9-axis absolute orientation. The hardware used is mostly open source, it can measure in a sampling frequency higher than 200 Hz and has been tested for up to 4 bar. Some possible applications are: water level monitoring, barotrauma tests, fish tagging, motion studies, etc.

 Dataset (0.5MB)

(2017) Pressurduino

PRESSURDUINO is a sensor designed to monitor the pressure stress that fish suffer when they pass through the turbines of hydropower plants. The hardware used is mostly open source, it can measure in a sampling frequency higher than 100 Hz and has been tested for up to 4 bar.

 Dataset (x.xMB) 

(2016-2017) Differential Pressure Sensor Speedometer

This is the first full-scale differential pressure sensor speedometer designed for torpedo-shaped AUVs (specifically for SPARUS II). The sensor is fully validated for velocities up to 2 m/s and acceleration of 2 m²/s. A simple equation based on the conservation of energy accurately estimates the velocity, with estimated mean absolute errors of 0.0087 m/s.

 Paper (1.6MB)   Newsletter new (3.62MB) 

(2016) iRON

iRon is the first lateral line probe based in differencial pressure sensors for field use. It consists of a 0.22 m length NACA025 body, designed as a compact, streamlined body to measure pressure gradients over the body simultaneously using six differential pressure sensors (±2000 Pa) with a resolution of 0.0695 Pa. At the same time, the water depth is measured by the probe using an absolute pressure sensor (0 to 10000 Pa). I can maeasure in a configurable sampling frecuency up to 400 Hz.

 Paper 1 (x.xMB)  Dataset (x.xMB) 

(2016) D-BOX

The D-BOX is a compact field-ready turbulet flow measurement device. It consists in two differential pressure sensors (MPXV5004) and a absolute pressure sensor (MPX5100GP). The box also actuates as an autonomous system providing datalogging and an internal power supply. The box is activated with a magnetic switch.

 Dataset (x.xMB) 

(2015) B-BOX

B-BOX is the first lab prototype that demonstrates the possibility of using differential pressure sensor (DPS) for flow speed estimation. The prototype consists of a 3D printed “bullet” box. The design is simple and highly modular to study different possible configurations. The system consists of two digital temperature compensated DPSs (SSCDRRN005ND2A5) of 0.15 Pa/LSB and a power consumption lower than 10 mW. The digital signal is transmitted to a I2C multiplexer (TCA9548A), which allows the control of each sensors with an Arduino micro board.

 Paper (0.5MB)   Dataset (x.xMB) 

(2012) Escalas 1.0


ESCALAS is a software for the assisted design, calculation and 1D simulation of most common type of stepped fishways. The software offers an automatic designing toolbox for vertical slot fishways and pool-weir fishways. In the software any type of stepped fishways can be defined and simulated.

 User Guide (x.xMB)  Software (x.xMB)  Video

(2010) DimP 1.0


DimP 1 is a software developed to facilitate the data processing from fish inventories, focused in the management and research of this resource. The software allows to calculate population parameters and export them in different formats.

 User Guide (x.xMB)   Software (x.xMB)   Video

Other JOurnal PaPERs

2019 Influencia del régimen de caudales en los movimientos reproductivos de la trucha común en la Península Ibérica Cuadernos de la Sociedad Española de Ciencias Forestales 45(1) . DOI: 10.31167/csecfv0i45.19505
2019 Metodología "AEPS" aplicada a la evaluación de escalas para peces en la cuenca hidrográfica del río Duero. Cuadernos de la Sociedad Española de Ciencias Forestales 45(1) . DOI: 10.31167/csecfv0i45.19519
2019 Capacidad de nado de ciprínidos potamódromos ibéricos. Experimentación en el canal de nado de Vadocondes. Cuadernos de la Sociedad Española de Ciencias Forestales 45(1) . DOI: 10.31167/csecfv0i45.19529
2019 Differential Pressure Sensor Speedometer for AUV velocity estimation. IEEE Journal of Oceanic Engineering . DOI: 10.1109/JOE.2019.2907822
2019 Ecohydraulics in the global context of river flow alterations and impacts for freshwater fish. Limnetica. DOI: in Press
2019 Fish under pressure:examining behavioural responses of Iberian barbel under simulated hydropeaking with instream structures. PLoS ONE. DOI: 10.1371/journal.pone.0211115
2018 Map-based localization and loop-closure detection from a moving underwater platform using flow features Autonomous Robots. DOI: 10.1007/s10514-018-9797-3
2018 Influencia de factores ambientales y biométricos en la capacidad de nado del barbo ibérico (Luciobarbus bocagei Steindachner, 1864), un ciprínido potamódromo endémico de la Península Ibérica. Limnetica. DOI: 10.23818/limn.37.20
2018 Man-made flows from a fish’s perspective: autonomous classification of turbulent fishway flows with field data collected using an artificial lateral line. Bioinspiration & Biomimetics. DOI: 10.1088/1748-3190/aabc79
2018 Ein Fisch ist kein Punkt: Analyse von Strömungssignaturen in Fischaufstiegsanlagen mit einem Seitenlinien Sensor. Wasserwirtschaft. DOI: 10.1007/s35147-018-0015-1
2017 RAPTOR-UAV: Real-Time Particle Tracking in Rivers using an Unmanned Aerial Vehicle. Earth Surface Processes and Landforms. DOI: 10.1002/esp.4199
2017 Estimation of Flow Turbulence Metrics With a Lateral Line Probe and Regression. IEEE Transactions on Instrumentation and Measurement. DOI: 10.1109/TIM.2017.2658278
2017 Classification of benthic biocenoses of the lowland river Tudovka (Tver region, Russia) using community features. Geography, Environment, Sustainability. DOI: 10.24057/2071-9388-2017-10-2-40-56
2017 Seasonal and daily upstream movements of brown trout Salmo trutta in an Iberian regulated river. Knowledge and Management of Aquatic Ecosystems. DOI: 10.1051/kmae/2016041
2016 Flow Velocity Estimation Using a Fish-Shaped Lateral Line Probe with Product-Moment Correlation Features and a Neural Network. Flow Measurement and Instrumentation. DOI: 10.1016/j.flowmeasinst.2016.10.017
2016 Design and application of a fish-shaped lateral line probe for flow measurement. Review of Scientific Instruments. DOI: 10.1063/1.4946765
2016 Ascent ability of brown trout, Salmo trutta, and two Iberian cyprinids - Iberian barbel, Luciobarbus bocagei, and northern straight-mouth nase, Pseudochondrostoma duriense - In a vertical slot fishway. Knowledge and Management of Aquatic Ecosystems. DOI: 10.1051/kmae/2015043
2015 Joint Estimation of Bulk Flow Velocity and Angle Using a Lateral Line Probe. IEEE Transactions on Instrumentation and Measurement. DOI: 10.1109/TIM.2015.2499019
2015 Comments on the Detailed Analysis of Vertical Slot Fishway Hydraulics. Wasserwirtschaft. DOI: 10.1007/s35147-015-0551-x
2013 Pasos para peces: escalas y otros dispositivos de paso. Notas Técnicas del CIREF. Link.
2013 Methodological basis for calculating of log-crib wall or Krainer wall design. Informes de la Construcción. DOI: 10.3989/ic.12.072

RELEVANT CONFERENCE PAPERS (for a complete list check cv)

2018 A 3D data-driven approach to study the hydrodynamic preferences of fish in fishways. International Symposium of Ecohydraulics 2018. pdf Abstract (0.1MB).
2018 Measuring flow complexity from fish perspective: Challenges and opportunities to impact assessment. XIX Conference of the Iberian Association of Limnology. pdf Abstract (0.1MB).
2017 Map-based localization in structured underwater environment using simulated hydrodynamic maps. IEEE Robio 2017. pdf Paper (0.8MB).
2017 Artificial lateral lines: Assessing fish passages sensing like a fish. International Conference on Engineering and Ecohydrology for Fish Passage 2017. pdf Abstracts (1.1MB).
2016 Ecohydraulic Flow Sensing and Classification Using a Lateral Line Probe. 11th International Symposium on Ecohydraulics. pdf Paper (0.3MB).
2015 The most evaluated fishway in Spain: a new lesson every year. International Conference on Engineering and Ecohydrology for Fish Passage 2015. pdf Slides (5.1MB).
2015 Evaluation of the hydraulic performance of natural-like fishways. VIII Young Researchers Meeting on Conservation and Sustainable Use of Forest Systems, At Valsaín . pdf Poster (2.5MB).
2013 Desarrollo de un programa informático para la estimación de parámetros poblacionales de peces en ríos. 6º Congreso Forestal Español. pdf Paper (0.4MB).
2012 Salmo trutta (Linnaeus, 1758) behaviour in a vertical slot fishway: the influence of sex, age, flow and experimental conditions on ascent efficiency. IV Jornadas Ibéricas de Ictiología . pdf Paper (3.1MB).
2011 Propuesta metodológica para el diseño de muros Krainer. Restaurarios 2011. pdf Paper (2.1MB).
2011 Evaluación hidráulica y biológica de un paso naturalizado (río artificial) en el Marín (río Tormes, Salamanca). Restaurarios 2011. pdf Paper (2.0MB).

Book Chapters

2018 Pasos para peces: escalas y otros dispositivos. Hacia un agua Justa. ISBN: 979-84-8448-942-9
2017 Forschung und Technik. Biologische Durchgängigkeit von Fließgewässern. DOI: 10.1007/978-3-658-13990-2_6
2016 Random Forests Hydrodynamic Flow Classification in a Vertical Slot Fishway Using a Bioinspired Artificial Lateral Line Probe. Intelligent Robotics and Applications. DOI: 10.1007/978-3-319-43518-3_29


09/2019 - present Postdoctoral researcher at GEA-Ecohydraulics, University of Valladolid
09/2014 - 08/2019 Researcher at Centre for Biorobotics, Tallinn University of Technology
09/2010 - 09/2014 Engineer/Researcher at GEA-Ecohydraulics, University of Valladolid


09/2014 - 05/2019 PhD in Information and Communication Technology at Tallinn University of Technology, supervisors: Maarja Kruusmaa and Jefrey A. Tuhtan. Thesis.
09/2013 - 12/2017 PhD in Conservation and Sustainable Use of Forest Systems, University of Valladolid, supervisors: F.J. Sanz-Ronda and Andrés Martínez de Azagra. Thesis.
09/2012 - 07/2013 Master Degree in Research in Engineering for Agroforestry Development (MSc), University of Valladolid
09/2009 - 06/2012 Forestry Engineering (BSc), University of Valladolid
10/2005 - 09/2009 Technical Forestry Engineering (BSc), University of Valladolid


12/2018 - 12/2018 Centre for autonomous marine operations and systems (AMOS) NTNU, Trondheim (Norway)
09/2017 - 09/2017 Civil Engineering, Architecture and Georesources Department, Instituto Superior Técnico, Universidad de Lisboa (Portugal)
04/2017 - 05/2017 Computer Vision and Robotics Institute, CIRS, Universidad de Girona (España)
10/2016 - 11/2016Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidad de Lisboa (Portugal)
10/2016 - 11/2016 Laboratory of Water Resources Planning, Tokyo University of Agriculture and Technology, Tokyo (Japan)
04/2016 - 05/2016 Institute of Water and River Basin Management, Karlsruhe Institute of Technology, Karlsruhe (Germany)


2019 Extraordinary PhD award from University of Valladolid
2019 Seal of Excellence to the project proposal 839830, AVAIL
2018-2019 Honorific collaborator of the Department of Agroforestry Engineering ETSIIAA (Palencia)
2018 Seal of Excellence to the project proposal 795434, AVAIL
2017-2018 Smart specialisation scholarships to PhD students
2015 Award to Distinguished Project in Fisheries Engineering and Ecohidrology (ASCE and AFS)
2014-2017 Marie Skłodowska-Curie actions research fellowships
2014 Best MSc Diploma
2014 Award to the Innovation funded by "El Mundo"
2013 Prometeo Scholarship to Escalas 1.0
2011-2013 Research Scholarship UVa
2010-2011 Scholarship to collaborate in university departments Granded by Basque Country
2010 "Investigamos" Award for DimP 1.0
2009 Best thesis in research and innovation (Technical Forestry Engineering)


Check records of reviews at Publons.

External Talks

01/11/16 Pressure sensor-based artificial lateral lines.Tokyo university of Agriculture and Technonology, hosted by Shinki Fukuda
21/05/16 FishView: sensing like a fish.University of Valladolid, hosted by Francisco Javier Sanz Ronda


2018 DIY Sensing and Logging with Open Hardware. International Symposium of Ecohydraulics
2014 Workshop of Hydraulics. Fish migration in Spain: Challenges and experiences
2013 Workshop of Hydraulics. Fishways: evaluation and experimentation
2009 - 2014 Practical courses of fishways: design, monitoring and evaluation


Co-Advised Master Thesis
2017 - 2018 Cecilia Monoli (ongoing)
2019 Ferdi Tezcan (ongoing)
Co-Advised Bachelor Thesis
2016 - 2017 Melanie Schulz
2019 Jevgeni Potulov
2015 - 2016 Uljan Sinani (CfB)
2017 - 2018 Ana García-Vega (CfB)
Teacher in Courses
2009 - 2014 Practical courses of fishways: design, monitoring and evaluation
2018 DIY Sensing and Logging with Open Hardware. ISE 2018. Tokyo, Japan.
Other teaching activities
2017 - 2018 The art of scientific figures. Tallinn university of Technology.

Participation in competitive research projects

2016-2020 FIThydro (Fish friendly Innovative Technologies for Hydropower). Funding agency: European Union (H2020)
2016-2017 FFG Barotrauma (Sensor development to assess barotrauma impact in fish.
2014-2017 FishView (Assessing fish passability using a robotic fish sensor and hydrodynamic imaging). Funding agency: BONUS program.
2014-2017 ROBOCADEMY (European Academy for Marine and Underwater Robotics). Funding agency: EU Marie Curie Program (7th FP).
2013-2017 SEGURA RIVERLINK. Ref.: LIFE12 ENV/ES/001140. Funding agency: EU.
2010-2011 Evaluation of the swimming ability of Iberian fish fauna. Funding agency: Junta de Castilla y León.


Fish passage solutions designed with GEA-Ecohydraulics: List.