Angel Lopez-Urrutia

Angel Lopez-Urrutia

Research Scientist
Spanish Institute of Oceanography, IEO, Gijon, Spain
lopezurrutia@gmail.com


I am a Senior Scientist at the Spanish Institute of Oceanography, a governmental research institution. I am based at the lab in Gijon (Centro Oceanografico de Gijon, Asturias). I am a marine ecologist, my work uses marine plankton as models to test ecological theories. I apply data mining, mathematical theory and macroecological techniques in an attempt to understand the structure of nature. My research interests are quite broad, from physiological rates at the celullar level to community rates and biogeochemical cycles.

I am a biologist but most of my work deals with data analysis and model development. My latest interest is on the development of imaging systems and software for the automatic classification of plankton using deep learning techniques. I believe that machine learning can make a difference in the scientific community by automating repetitive tasks so researchers can focus on more impactful work.

Publications

Google Scholar Profile

1
Alvarez E, Nogueira E, Angel Lopez-Urrutia (2017) In Vivo Single-Cell Fluorescence and Size Scaling of Phytoplankton Chlorophyll Content.
Applied and environmental microbiology 83, Alvarez2017.pdf.

2
Gonzalez P, Alvarez E, Diez J, Angel Lopez-Urrutia, del Coz JJ (2017) Validation methods for plankton image classification systems.
Limnology and oceanography-methods 15:221-237, Gonzalez2017.pdf.

3
Alvarez E, Morán XAG, Angel Lopez-Urrutia, Nogueira E (2016) Size-dependent photoacclimation of the phytoplankton community in temperate shelf waters (southern Bay of Biscay).
Marine ecology progress series 543:73-87, Alvarez2016.pdf.

4
Garcia FC, Elena Garcia-Martin E, Gonzalez Taboada F, Sal S, Serret P, Angel Lopez-Urrutia (2016) The allometry of the smallest: superlinear scaling of microbial metabolic rates in the Atlantic Ocean.
ISME Journal 10:1029-1036, Garcia2016.pdf.

5
Morán XAG, Alonso-Saez L, Nogueira E, Ducklow HW, Gonzalez N, Angel Lopez-Urrutia, Diaz-Perez L, Calvo-Diaz A, Arandia-Gorostidi N, Huete-Stauffer TM (2015) More, smaller bacteria in response to ocean's warming?
Proceedings of the Royal Society B-Biological Sciences 282, Moran2015.pdf.

6
Garcia FC, Alonso-Saez L, Morán XAG, Angel Lopez-Urrutia (2015) Seasonality in molecular and cytometric diversity of marine bacterioplankton: the re-shuffling of bacterial taxa by vertical mixing.
Environmental microbiology 17:4133-4142, Garcia2015.pdf.

7
Sal S, Alonso-Saez L, Bueno J, Garcia FC, Angel Lopez-Urrutia (2015) Thermal adaptation, phylogeny, and the unimodal size scaling of marine phytoplankton growth.
Limnology and oceanography 60:1212-1221, Sal2015.pdf.

8
Angel Lopez-Urrutia, Morán XAG (2015) Temperature affects the size-structure of phytoplankton communities in the ocean.
Limnology and oceanography 60:733-738, LopezUrrutia2015.pdf.

9
Regaudie-de Gioux A, Sal S, Angel Lopez-Urrutia (2015) Poor correlation between phytoplankton community growth rates and nutrient concentration in the sea.
Biogeosciences 12:1915-1923, Regaudie2015.pdf.

10
Vandromme P, Nogueira E, Huret M, Angel Lopez-Urrutia, Gonzalez-Nuevo Gonzalez G, Sourisseau M, Petitgas P (2014) Springtime zooplankton size structure over the continental shelf of the Bay of Biscay.
Ocean Science 10:821-835, Vandromme2014.pdf.

11
Garcia FC, Angel Lopez-Urrutia, Morán XAG (2014) Automated clustering of heterotrophic bacterioplankton in flow cytometry data.
Aquatic microbial ecology 72:175-185, Garcia2014a.pdf.

12
Alvarez E, Moyano M, Angel Lopez-Urrutia, Nogueira E, Scharek R (2014) Routine determination of plankton community composition and size structure: a comparison between FlowCAM and light microscopy.
Journal of plankton research 36:170-184, Alvarez2014a.pdf.

13
Gonzalez P, Alvarez E, Barranquero J, Diez J, Gonzalez-Quiros R, Nogueira E, Angel Lopez-Urrutia, Jose del Coz J (2013) Multiclass Support Vector Machines With Example-Dependent Costs Applied to Plankton Biomass Estimation.
IEEE Transactions on neural networks and learning systems 24:1901-1905, Gonzalez2013.pdf.

14
Garcia-Munoz C, Angel Lopez-Urrutia, Lubian LM, Garcia CM, Hernandez-Leon S (2013) A comparison of primary production models in an area of high mesoscale variability (South Shetland Islands, Antarctica).
Journal of sea research 83:30-39, Garcia2013a.pdf.

15
Vazquez-Dominguez E, Morán XAG, Angel Lopez-Urrutia (2013) Photoacclimation of picophytoplankton in the central Cantabrian Sea.
Marine ecology progress series 493:43-56, Vazquez2013.pdf.

16
Bueno J, Angel Lopez-Urrutia (2012) The Offspring-Development-Time/Offspring-Number Trade-Off.
American naturalist 179:E196-E203, Bueno2012.pdf.

17
Alvarez E, Angel Lopez-Urrutia, Nogueira E (2012) Improvement of plankton biovolume estimates derived from image-based automatic sampling devices: application to FlowCAM.
Journal of plankton research 34:454-469, Alvarez2012a.pdf.

18
Bode A, Alvarez-Ossorio MT, Miranda A, Angel Lopez-Urrutia, Valdés L (2012) Comparing copepod time-series in the north of Spain: Spatial autocorrelation of community composition.
Progress in oceanography 97:108-119, Bode2012.pdf.

19
Acuña JL, Angel Lopez-Urrutia, Colin S (2011) Primitive Ladder-of-Life Thinking Has Evolved Response.
Science 334:1347-1348, Acuna2011b.pdf.

20
Acuna J, Angel Lopez-Urrutia, Sean C (2011) Faking giants: the evolution of high prey clearance rates in jellyfish.
Science Acuna2011.pdf.

21
Sal S, Angel Lopez-Urrutia (2011) Temperature, nutrients, and the size-scaling of phytoplankton growth in the sea.
Limnology and Oceanography 56:1952-1955, Sal2011.pdf.

22
Rodriguez J, Gonzalez-Pola C, Angel Lopez-Urrutia, Nogueira E (2011) Composition and daytime vertical distribution of the ichthyoplankton assemblage in the Central Cantabrian Sea shelf, during summer: An Eulerian study.
Continental Shelf Research 31:1462-1473, Rodriguez2011.pdf.

23
Alvarez E, Angel Lopez-Urrutia, Nogueira E, Fraga S (2011) How to effectively sample the plankton size spectrum? A case study using FlowCAM.
Journal of Plankton Research 33:1119-1133, Alvarez11.pdf.

24
Morán XAG, Angel Lopez-Urrutia, Calvo-Diaz A, W LWK (2009) Increasing importance of small phytoplankton in a warmer ocean.
Global Change Biology :10.1111/j.1365-2486.2009.01960.xMoran09.pdf.

25
Fernandez de Puelles ML, Angel Lopez-Urrutia, Morillas A, Molinero JC (2009) Seasonal variability of copepod abundance in the Balearic region (Western Mediterranean) as an indicator of basin scale hydrological changes.
Hydrobiologia 617:3-16.

26
Angel Lopez-Urrutia (2008) The metabolic theory of ecology and algal bloom formation.
Limnology And Oceanography 53(5):2046-2047, LopezUrrutia08.pdf.

27
Benfield MC, Grosjean P, Culverhouse PF, Irigoien X, Sieracki ME, Lopez-Urrutia A, Dam HG, Hu Q, Davis CS, Hansen A, Pilskaln CH, Riseman EM, Schultz H, Utgoff PE, Gorsky G (2007) RAPID Research on Automated Plankton Identification.
Oceanography 20:172-187, Benfield07.pdf.

28
Valdés L, Angel Lopez-Urrutia, Cabal J, Alvarez-Ossorio M, Bode A, Miranda A, Cabanas M, Huskin I, Anadón R, Alvarez-Marques F, Llope M, Rodriguez N (2007) A decade of sampling in the Bay of Biscay: What are the zooplankton time series telling us?
Progress In Oceanography 74:98-114, Valdes08.pdf.

29
Angel Lopez-Urrutia, Morán XAG (2007) Resource limitation of bacterial production distorts the temperature dependence of oceanic carbon cycling.
Ecology 88:817-822, LopezUrrutiaMoran07.pdf.

30
Bonnet D, Harris R, Angel Lopez-Urrutia, Halsband-Lenk C, Greve W, Valdés L, Hirche HJ, Engel M, Alvarez-Ossorio MT, Wiltshire K (2007) Comparative seasonal dynamics of Centropages typicus at seven coastal monitoring stations in the North Sea, English Channel and Bay of Biscay.
Progress In Oceanography 72:233-248, Bonnet07.pdf.

31
Hirst A, Angel Lopez-Urrutia (2006) Effects of evolution on egg development time.
Marine Ecology-Progress Series 326:29-35, HirstLopezUrrutia06.pdf.

32
Martin ES, Irigoien X, Harris RP, Angel Lopez-Urrutia, Zubkov MV, Heywood JL (2006) Variation in the transfer of energy in marine plankton along a productivity gradient in the Atlantic Ocean.
Limnology And Oceanography 51:2084-2091, SanMartin06.pdf.

33
Varela M, Bode A, Lorenzo J, Alvarez-Ossorio MT, Miranda A, Patrocinio T, Anadón R, Viesca L, Rodriguez N, Valdés L, Cabal J, Angel Lopez-Urrutia, Garcia-Soto C, Rodriguez M, Alvarez-Salgado XA, Groom S (2006) The effect of the "Prestige" oil spill on the plankton of the N-NW Spanish coast.
Marine Pollution Bulletin 53:272-286, Varela06.pdf.

34
Angel Lopez-Urrutia, San Martin E, Harris RP, Irigoien X (2006) Scaling the metabolic balance of the oceans.
Proceedings Of The National Academy Of Sciences Of The United States Of America 103:8739-8744, LopezUrrutia06.pdf.

35
Bonnet D, Richardson A, Harris R, Hirst A, Beaugrand G, Edwards M, Ceballos S, Diekman R, Angel Lopez-Urrutia, Valdés L, Carlotti F, Molinero JC, Weikert H, Greve W, Lucic D, Albaina A, Yahia ND, Umani SF, Miranda A, dos Santos A, Cook K, Robinson S, de Puelles MLF (2005) An overview of Calanus helgolandicus ecology in European waters.
Progress In Oceanography 65:1-53, Bonnet05.pdf.

36
Angel Lopez-Urrutia, Harris R, Acuna J, Baamstedt U, Fyhn HJ, Flood P, Gasser B, Gorsky X G andIrigoien, Martinussen M (2005) A comparison of appendicularian seasonal cycles in four contrasting European coastal environments.
In: Gorsky G, Youngbluth M, editors, Response of marine ecosystems to global change: Ecological impact of appendicularians, Contemporary Publishing International, Aditions Scientifiques GB. pp. 255-276.
LopezUrrutia05.pdf.

37
Fernandez D, Angel Lopez-Urrutia, Fernandez A, Acuña JL, Harris R (2004) Retention efficiency of 0.2 to 6 um particles by the appendicularians Oikopleura dioica and Fritillaria borealis.
Marine Ecology-Progress Series 266:89-101, Fernandez04.pdf.

38
Angel Lopez-Urrutia, Harris RP, Smith T (2004) Predation by calanoid copepods on the appendicularian Oikopleura dioica.
Limnology And Oceanography 49:303-307, LopezUrrutia04.pdf.

39
Angel Lopez-Urrutia (2003) Allometry: How reliable is the biological time clock?
Nature 424:269-270, LopezUrrutia03c.pdf.

40
Angel Lopez-Urrutia, Irigoien X, Acuña JL, Harris R (2003) In situ feeding physiology and grazing impact of the appendicularian community in temperate waters.
Marine Ecology-Progress Series 252:125-141, LopezUrrutia03a.pdf.

41
Angel Lopez-Urrutia, Acuña JL, Irigoien X, Harris R (2003) Food limitation and growth in temperate epipelagic appendicularians (Tunicata).
Marine Ecology-Progress Series 252:143-157, LopezUrrutia03b.pdf.

42
Zubkov MV, Angel Lopez-Urrutia (2003) Effect of appendicularians and copepods on bacterioplankton composition and growth in the English Channel.
Aquatic Microbial Ecology 32:39-46, ZubkovLopezUrrutia03.pdf.

43
Angel Lopez-Urrutia, Acuña JL (1999) Gut throughput dynamics in the appendicularian Oikopleura dioica.
Marine Ecology-Progress Series 191:195-205, LopezUrrutiaAcuna99.pdf.