Jeffery Mangel


Pew Biodiversity Fellow Jan-Feb 2017


I am from New York, USA and have had an interest in the marine environment my whole life. My first direct experience with on-the-ground marine conservation was monitoring nesting hawksbill sea turtles in Hawaii and I have been truly driven ever since. Since that first experience I have participated in various other research projects with sea turtles, seabirds, and marine mammals.

While these field experiences can be fun and exhilarating, my real focus now is on working to conserve these species. That led me to work with small-scale fisheries in Peru and trying to make these fisheries more sustainable.


What made you want to join ICCS as a Biodiversity fellow?

I wanted to join ICCS because of the experience and expertise of its researchers with testing and implementing real-world solutions to conservation challenges. I believe I can learn much here that will help me improve my efforts to promote conservation of endangered species by Peruvian small-scale fisheries.


Is there a specific project you will be working on while you are with ICCS? Can you tell us a little about it?

While with ICCS I will be learning methods that can help us better understand and track the social and economic impacts of our work in fisher communities and to improve our understanding of how we can develop incentive programs to promote conservation work within small-scale fisheries.


I am a conservation biologist working at the Peruvian non-governmental organization ProDelphinus and as a Darwin Research Fellow at the University of Exeter. My research interests center around understanding the interactions of Peruvian fisheries with threatened and endangered marine fauna, including sea turtles, seabirds, small cetaceans and sharks. This includes multi-disciplinary work to understand the spatial and temporal distributions of species and their population status; fisheries monitoring and management; and bycatch mitigation research and experimentation.

This work requires the use of a wide range of techniques including onboard observer monitoring, drones, satellite tracking, bycatch mitigation technology trials and Rapid Assessment surveying.


My primary works falls under the Darwin Sustainable Artisanal Fisheries Initiative (Peru) led by Dr. Brendan Godley, University of Exeter. This multi-year project, as well as companion and related studies with which I am involved through my work with ProDelphinus all revolve around different aspects of monitoring the distribution, abundance and bycatch of threatened and endangered marine species – including sea turtles, seabirds, marine mammals and sharks – and trialling and implementing measures to mitigate these fishery interactions.

This research includes monitoring of small-scale longline and net fisheries, work with threatened and endangered species including the waved albatross and leatherback and hawksbill sea turtles, and trialing novel bycatch mitigation technologies like acoustic alarms and net illumination.


2006-present:   Science Director, ProDelphinus, Peru

2012-present:   Darwin Research Fellow, University of Exeter, UK

2008-2012:   Graduate education

2005:   Resource Management Liaison, NOAA-Pacific Islands Regional Office, USA

2003-2004:   U.S. Fulbright Fellow, ProDelphinus, Peru

2001-2003:   Graduate education

2001:   Field Biologist, Oceanic Society, Midway Atoll, USA and Suriname

2000:   Green Sea Turtle Field Coordinator, Caribbean Conservation Society, Costa Rica

1997-2000:   Research Assistant, Hawaii Wildlife Fund, USA

1994-1997:   Graduate education

1990-1994:   Undergraduate education 


At any one time I work on multiple projects that receive funding from a broad range of international foundations and government grant programs.


(2015-2017) DEFRA Darwin Initiative

Project on SSF ‘Linking marine biodiversity conservation and fisher prosperity through marketplace innovation’, through University of Exeter, UK

(2015-2018) NOAA-PIRO

Project: Advancing leatherback conservation in the southeast Pacific through bycatch mitigation and community-based conservation

(2016-2017) US Department of State

Project: Partnering with Peruvian small-scale fishers to mitigate at-sea solid waste production

(2016-2017) NOAA-FHQ

Project: Marine spatial planning, Ica Region, Peru


ICCS Biodiversity Fellowship, 2017

Fulbright Scholar, 2003-2004

ORSAS-Overseas Research Students Award Scheme recipient, 2009-2012


IUCN Marine Turtle Specialist Group

ACAP Seabird Bycatch Working Group

Marine Turtle Research Group, University of Exeter

LAUDOPO-Red Luad Pacifico Oriental

ICAPO-Initiativa Carey del Pacifico Oriental

International Sea Turtle Society

Marine Mammal Society


Gaos, A.R., M.J. Liles, V. Gadea, A. Pena de Niz, F. Vallejo, J.J. Darquea, A. Henriquez, C.M. Pacheco, J. Urteaga, E. Altamirano, A. Rivera, S. Chavarria, D. Melero, D. Chacon, C. Miranda, C. LeMarie, J. Alfaro-Shigueto, J.C. Mangel, I.L. Yanez, J.A. Seminoff. In press. Living on the edge: hawksbill turtle nesting along the eastern Pacific rim. Latin American Journal of Aquatic Research.

Rees, A.F., J. Alfaro-Shigueto, P.C.R. Barata, K.A. Bjorndal, A.B. Bolten, J. Bourjea, A.C. Broderick, L.M. Campbell, L. Cardona, C. Carreras, P. Casale, S.A. Ceriani, P.H. Dutton, T. Eguchi, A. Formia, M.M.P.B. Fuentes, W.J. Fuller, M. Girondot, M.H. Godfrey, M. Hamman, K. Hart, G.C. Hays, S. Hochscheid, Y. Kaska, M.P. Jensen, J.C. Mangel, J.A. Mortimer, E. Naro-Maciel, C.K.Y. Ng, W.J. Nichols, A.D. Phillott, R.D. Reina, O. Revuelta, G. Schofield, J.A. Seminoff, K. Shanker, J. Tomás, J. van de Merwe, K.S. Van Houtan, H.B. Vander Zanden, B.P. Wallace, K.R. Wedemeyer-Strombel, T.M. Work, B.J. Godley. 2016. Are we working toward global research priorities for management and conservation of sea turtles. Endangered Species Research 31: 337-382.

Suarez-Yana, T., D. Montes I., R. Zuniga, J.C. Mangel, J. Alfaro-Shigueto. 2016. Hematologic, morphometric and biochemical analytes of the clinically healthy green sea turtle (Chelonia mydas) in Peru. Chelonian Conservation and Biology 15(1): 153-157.

Alfaro-Shigueto, J., J.C. Mangel, M. Arias-Schreiber & K. Valenzuela. 2016. Intentional captures of the waved albatross Phoebastria irrorata by small-scale offshore fishermen at Salaverry port, Peru. Panamerican Journal of Aquatic Sciences 11(1): 70-77.

Ortiz, N., J.C. Mangel, J. Wang, J. Alfaro-Shigueto, S. Pingo, A. Jimenez, T. Suarez, Y. Swimmer, F. Carvalho & B.J. Godley. 2016. Reducing green sea turtle bycatch in small-scale fisheries using illuminated gillnets: the cost of saving a sea turtle. Marine Ecology Progress Series 545: 251-259.

Velez-Zauzo, X., J. Alfaro-Shigueto, J.C. Mangel, R. Papa & I. Agnarsson. 2015. What genetic barcoding reveals about the shark fishery in Peru. Fisheries Research 161: 34-41.

Pfaller, J.B. J. Alfaro-Shigueto, G.H. Balazs, J.C. Mangel, S.H. Peckham, A.B. Bolton, K.A. Bjorndal. 2014. Hitchhikers reveal cryptic host behavior: new insights from the association between Planes major and sea turtles in the Pacific Ocean. Marine Biology 161(9): 2167-2178.

Pfaller, J.B. J. Alfaro-Shigueto, B. Giffoni, T. Ishihara, J.C. Mangel, S.H. Peckham, K.A. Bjorndal & J.A. Baeza. 2014. Social monogamy in the crab Planes major, a facultive symbiont of loggerhead sea turtles. Journal of Experimental Biology and Ecology 461: 124-132.

Doherty, P.D., J. Alfaro-Shigueto, J.C. Mangel, M.J. Witt & B.J. Godley. 2014. Big catch, little sharks: Insight into Peruvian small-scale longline fisheries. Ecology and Evolution 4(12): 2375-2383.

Mangel, J.C., J. Alfaro-Shigueto, M.J. Witt, D. Hodgson & B.J Godley. 2013. Using pingers to reduce small cetacean bycatch in the small-scale driftnet fishery in Peru. Oryx 47(4): 595-606.

Garcia-Godos, I., K. VanWaerebeek, J. Alfaro-Shigueto & J.C. Mangel. 2013. Entanglements of large cetaceans in Peru: few records but high risk. Pacific Science 67(4):523-532.

Thys, T.M., J. Whitney, A. Hearn, K.C. Weng, C. Penaherrera, L. Jawad, J. Alfaro-Shigueto, J.C. Mangel & S.A. Karl. 2013. First record of the southern ocean sunfish, Mola ramsayi, in the Galapagos Marine Reserve. Marine Biodiversity Records 6: e70.

Alfaro-Shigueto, J., J.C. Mangel, P.H. Dutton, J.A. Seminoff & B.J. Godley. 2012. Trading information for conservation: a novel use of radio broadcasting to reduce sea turtle bycatch. Oryx 46(3): 332-339.

Cossios et al. 2012. The order Carnivora (Mammalia) in Peru: State of knowledge and research priorities for its conservation. Peruvian Journal of Biology 19(1): 17-26.

Mangel, J. C., J. Alfaro-Shigueto, M. J. Witt, P. H. Dutton, J. A. Seminoff & B. J. Godley. 2011. Post-capture movements of loggerhead turtles in the southeastern Pacific Ocean assessed by satellite tracking. Marine Ecology Progress Series 433: 261-272.      

Alfaro-Shigueto, J., J. Valqui & J.C. Mangel. 2011. New record of the marine otter Lontra felina (Molina, 1782) north to its current distribution. Ecologia Aplicada 10(2): 87-91.

Alfaro-Shigueto, J., J.C. Mangel, F. Bernedo, P.H. Dutton, J.A. Seminoff & B.J. Godley.  2011.  Small scale fisheries of Peru: a major sink for marine turtles in the Pacific.  Journal of Applied Ecology 48: 1432-1440.

Benavides, M., K.A. Feldheim, C.A. Duffy, S. Wintner, M. Braccini, J. Boomer, C. Huveneers, J.C. Mangel, J. Alfaro-Shigueto, D.P. Caramil & D.D. Chapman.  2011.  Phylogeny of the copper shark (Carcharhinus brachyurus) in the Southern Hemisphere: implications for the conservation of a coastal apex predator.  Marine and Freshwater Research 62: 861-869.

Alfaro-Shigueto, J., J.C. Mangel, C. Caceres, J.A. Seminoff, A. Gaos & I. Yañez.  2010.  Hawksbill turtles in Peruvian coastal fisheries.  Marine Turtle Newsletter 129: 19-21.

Pajuelo, M., K. Bjorndal, J. Alfaro-Shigueto, J. Mangel, J.A. Seminoff & A.B. Bolten. 2010.  Stable isotope dichotomy in loggerhead turtles reveals Pacific-Atlantic oceanographic differences.  Marine Ecology Progress Series 417: 277-285.

Tzika, A.C., E. D’Amico, J. Alfaro-Shigueto, J.C. Mangel, K. Van Waerebeek & M.C. Milinkovitch.  2010.  Molecular forensics analyses of small cetacean samples fromPeruvian fish markets.  Conservation Genetics 11: 2207-2218.

Alfaro-Shigueto, J., J.C. Mangel, M. Pajuelo, P. Dutton, J.A. Seminoff, & B.J. Godley. 2010.  Where small scale can have a large impact: Structure and characterization of small-scale fisheries in Peru.  Fisheries Research 106: 8-17.

Vianna, J.A., P. Ayerdi, G. Medina-Vogel, J.C. Mangel, H. Zeballos, M. Apaza & S. Faugeron.  2010.  Historical and contemporary factors determining the distribution of the marine otter (Lontra felina) inferred by mtDNA.  Journal of Heredity 101(6): 676-689.

Mangel, J.C., T. Whitty, G. Medina-Vogel, J. Alfaro-Shigueto, C. Caceres & B.J. Godley. 2011.  Latitudinal variation in diet and patterns of human interaction in the marine otter.  Marine Mammal Science 27(2): E14-E25.

Mangel, J., J. Alfaro-Shigueto, K. Van Waerebeek, C. Caceres, S. Bearhop, M.J. Witt & B.J. Godley.  2010.  Small cetacean captures in Peruvian artisanal fisheries: high despite protective legislation.  Biological Conservation 143: 136-143.

Gilman, E., J. Gearhart, B. Price, S. Eckert, H. Milliken, J. Wang, Y. Swimmer, D. Shiode, O. Abe, S.H. Peckham, M.Chaloupka, M. Hall, J. Mangel, J. Alfaro-Shigueto, P. Dalzell & A. Ishizaki.  2010.  Mitigating sea turtle bycatch in coastal passive net fisheries.  Fish and Fisheries 11: 57-88.

Zavalaga, C., G. Engblom, J. Alfaro Shigueto & J.C. Mangel.  2010.  Immature northern giant petrels Macronectes halli visiting the coast of Peru.  Marine Ornithology 237: 37-40.

Alfaro-Shigueto, J., J. Mangel, J. Seminoff & P. Dutton.  2008. Demography of loggerhead turtles Caretta caretta in the southeastern Pacific Ocean: fisheries-based observations and implications for management.  Endangered Species Research 5(2-3): 129-135.

Gilman, E., S. Clark, N. Brothers, J. Alfaro Shigueto, J. Mandelman, J. Mangel, S. Peterson, S. Piovano, N. Thomson, P. Dalzell, M. Donoso, M. Goren & T. Werner. 2008.  Shark interactions in pelagic longline fisheries.   Marine Policy 32(1): 1-18.

Alfaro Shigueto, J., P. Dutton, M. Van Bressem & J. Mangel.  2007.  Interactions between leatherback turtles and Peruvian artisanal fisheries.  Chelonian Conservation and Biology 6(1): 129-134.

Awkerman, J., K. Huyvaert, J. Mangel, J. Alfaro Shigueto & D. Anderson. 2006.  Incidental and intentional catch threatens Galápagos waved albatross.  Biological Conservation 133: 483-489.

Alfaro-Shigueto, J., P. Dutton, J. Mangel & D. Vega.  2004.  First confirmed occurrence of loggerhead turtles in Peru.  Marine Turtle Newsletter 103: 7-11.


Book Chapters

Seminoff, J.A., J. Alfaro-Shigueto, J. Mangel, D. Amorocho, S. Kelez & D. Chacón. 2012.  Biology and conservation of sea turtles in the Eastern Pacific Ocean: A general overview.  Pp. 11-39 in: Sea turtles of the Eastern Pacific: Advances in Research and Conservation, J. Seminoff and B. Wallace (eds.). University of Arizona Press. 368 pp.

Alfaro-Shigueto, J. & J.C. Mangel. 2011.  Sea turtle conservation in Peru: limitations and efforts.  Chapter 15 in Conservation of Pacific Sea Turtles, P.Dutton and D. Squires (Eds.).  University of Hawaii Press. 496 pp.

Mangel, J., J. Alfaro-Shigueto, R. Rose & G. Borin.  2010.  Marine otters at home in Peruvian fishing ports: their behavior, prey, and interactions with human communities.  In Building a Future for Wildlife: Zoos and Aquariums Committed to Biodiversity Conservation, G. Dick and M. Gusset (Eds.). World Association of Zoos and Aquariums.  216 pp.


David Bartholomew, University of Exeter, UK

Phil Doherty, University of Exeter, UK

Tommy Clay, University of Exeter, UK

Elizabeth Campbell, University of Exeter, UK

Natalia Ortiz, University of Exeter, UK

Astrid Jimenez, Universidad de Piura, Peru

Sergio Pingo, Universidad de Piura, Peru