H. Guzman

Nicolas E. Humphries, Rafael Bravo de la Parra, Lauren R. Peel, 2022, Proceedings of the National Academy of Sciences of the United States of America.

Decreases in encounter rate of endangered Northeast Pacific humpback whales in Southern Costa Rica: Possible changes in migration pattern due to warming events

H. Guzman, L. Oviedo, Lili Pelayo-González, 2022, Frontiers in Marine Science.

Seasonal variation in skeletal extension rate and stable isotopic (13C/12C and 18O/16O) composition in response to several environmental variables in the Caribbean reef coral Siderastrea siderea

H. Guzman, A. Tudhope, 1998 .

Growth rates of eight species of scleractinian corals in the eastern Pacific (Costa Rica)

H. Guzman, J. Cortés, 1989 .

Assessing the herbivore role of the sea-urchin Echinometra viridis: Keys to determine the structure of communities in disturbed coral reefs.

H. Guzman, C. Sangil, 2016, Marine environmental research.

uecune in Coral Reef Growth After the Panama Canal ?

Robert A. Cipriano, H. Guzman, J. Jackson, 2011 .

First report of folliculinid ciliates affecting Caribbean scleractinian corals

H. Guzman, E. Jordán-Dahlgren, A. Cróquer, 2006, Coral Reefs.

Shark mortality cannot be assessed by fishery overlap alone

Carlos M. Duarte, Daniel Devia Cortés, Oliver J. D. Jewell, 2021, Nature.

Reconstructing Panama's total fisheries catches from 1950 to 2010: Highlighting data deficiencies and management needs

H. Guzman, D. Zeller, S. Harper, 2014 .

Pumilacidins from the Octocoral-Associated Bacillus sp. DT001 Display Anti-Proliferative Effects in Plasmodium falciparum

P. Dorrestein, H. Guzman, Lorena M Coronado, 2018, Molecules.

Hybridization and cryptic speciation in the Tropical Eastern Pacific octocoral genus Pacifigorgia

H. Guzman, S. Vargas, A. Poliseno, 2021, bioRxiv.

Geographic and temporal patterns of non-lethal attacks on humpback whales by killer whales in the eastern South Pacific and the Antarctic Peninsula

H. Guzman, F. Félix, Ben Haase, 2018, Endangered Species Research.

Macroalgal community response to herbivores and sediment deposition: an indicator of coral reef degradation

H. Guzman, C. Sangil, 2019, Journal of Applied Phycology.

Skeletal growth controls on Mg/Ca and P/Ca ratios in tropical Eastern Pacific rhodoliths (coralline red algae)

H. Guzman, C. Andrus, J. Halfar, 2017 .

Re-evaluation of using rhodolith growth patterns for paleoenvironmental reconstruction: An example from the Gulf of Panama

H. Guzman, C. Andrus, J. Halfar, 2017 .

Antiplasmodial activity of bacilosarcin A isolated from the octocoral-associated bacterium Bacillus sp. collected in Panama

H. Guzman, Marcelino Gutiérrez, Cristopher A. Boya, 2012, Journal of pharmacy & bioallied sciences.

Leptolide, a new furanocembranolide diterpene from Leptogorgia alba.

H. Guzman, R. Riguera, E. Quiñoá, 2005, Journal of natural products.

L-galactose as a natural product: isolation from a marine octocoral of the first α-L-galactosyl saponin

H. Guzman, R. Riguera, E. Quiñoá, 2004 .

A review of toxic metal contamination in marine turtle tissues and its implications for human health

H. Guzman, C. Potvin, V. V. Hinsberg, 2017 .

Metal contents of marine turtle eggs (Chelonia mydas; Lepidochelys olivacea) from the tropical eastern pacific and the implications for human health

H. Guzman, C. Potvin, V. V. van Hinsberg, 2016, Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes.

Accumulation of trace elements in leatherback turtle (Dermochelys coriacea) eggs from the south-western Caribbean indicates potential health risks to consumers.

H. Guzman, V. V. van Hinsberg, S. Kaiser, 2020, Chemosphere.

Are U.S. Coral Reefs on the Slippery Slope to Slime?

Carrie V. Kappel, H. P. Possingham, C. Kappel, 2005, Science.

Bioindication potential of carbonic anhydrase activity in anemones and corals.

H. Guzman, A. L. Gilbert, 2001, Marine pollution bulletin.

Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005

Scott F. Heron, David S. Gilliam, George P. Schmahl, 2010, PloS one.

How many kinds of sclerite? Towards a morphometric classification of gorgoniid microskeletal components.

H. Guzman, S. Vargas, F. Siles, 2010, Micron.

Interspecific hybridization and restricted trans‐Pacific gene flow in the Tropical Eastern Pacific Pocillopora

H. Guzman, David J. Combosch, H. Schuhmacher, 2008, Molecular ecology.

Distribution patterns of the genus Pacifigorgia (Octocorallia: Gorgoniidae): track compatibility analysis and parsimony analysis of endemicity

H. Guzman, S. Vargas, O. Breedy, 2007 .

Coral Reef Community Structure at Caño Island, Pacific Costa Rica

H. Guzman, J. Cortés, 1989 .

Spatial patterns in reef-generated noise relate to habitats and communities: evidence from a Panamanian case study

M. Holderied, S. Simpson, H. Guzman, 2010 .

Short-term ecological consequences of a major oil spill on Panamanian subtidal reef corals

H. Guzman, J. Jackson, E. Weil, 1991, Coral Reefs.

Longest recorded trans-Pacific migration of a whale shark (Rhincodon typus)

H. Guzman, A. Hearn, S. Eckert, 2018, Marine Biodiversity Records.

A Site Description of the CARICOMP Mangrove, Seagrass and Coral Reef Sites in Bocas del Toro, Panama

C. Lovelock, H. Guzman, I. Feller, 2005 .

Meiofauna associated with a Pacific coral reef in Costa Rica

H. Guzman, J. Cortés, V. Obando, 1987, Coral Reefs.

Antimicrobial‐producing Pseudoalteromonas from the marine environment of Panama shows a high phylogenetic diversity and clonal structure

H. Guzman, I. Schmitt, F. Dal Grande, 2018, Journal of basic microbiology.

Novel Insights Into the Genetic Population Connectivity of Transient Whale Sharks (Rhincodon typus) in Pacific Panama Provide Crucial Data for Conservation Efforts

H. Guzman, E. Díaz-Ferguson, C. E. Beaver, 2021, Frontiers in Marine Science.

Siderastrea Glynni, A New Species Of Scleractinian Coral (Cnidaria, Anthozoa) From The Eastern Pacific

H. Guzman, A. Budd, 1994 .

Assessing the long-term effects of a catastrophic oil spill on subtidal coral reef communities off the Caribbean coast of Panama (1985–2017)

H. Guzman, E. Weil, S. Kaiser, 2020, Marine Biodiversity.

Humpback whale movements in a narrow and heavily-used shipping passage, Chile

R. Condit, H. Guzman, J. Capella, 2020 .

Estimate by means of flow cytometry of variation in composition of fatty acids from Tetraselmis suecica in response to culture conditions

H. Guzman, Karen Freijanes Presmanes, Laura Carmona Duarte, 2010, Aquaculture International.

Tourist Knowledge, Pro-Conservation Intentions, and Tourist Concern for the Impacts of Whale-Watching in Las Perlas Archipelago, Panama

L. Gerber, H. Guzman, Arielle M. Amrein, 2021, Frontiers in Marine Science.

Molecular phylogeny and DNA barcoding of tropical eastern Pacific shallow-water gorgonian octocorals

H. Guzman, G. Wörheide, S. Vargas, 2014, Marine Biology.

Two new species of gorgonian octocorals from the Tropical Eastern Pacific Biogeographic Region (Cnidaria, Anthozoa, Gorgoniidae)

H. Guzman, O. Breedy, Gary C. Williams, 2013, ZooKeys.

The phylogeny of Pacifigorgia (Coelenterata, Octocorallia, Gorgoniidae): a case study of the use of continuous characters in the systematics of the Octocorallia

H. Guzman, S. Vargas, O. Breedy, 2010 .

Restoration of Coral Reefs in Pacific Costa Rica

H. Guzman, 1991 .

A new species of alcyonacean octocoral from the Peruvian zoogeographic region

H. Guzman, O. Breedy, 2014, Journal of the Marine Biological Association of the United Kingdom.

Effects of titanium dioxide (TiO2) nanoparticles on caribbean reef‐building coral (Montastraea faveolata)

H. Guzman, B. Jovanović, 2014, Environmental toxicology and chemistry.

A mechanism of transmission and factors affecting coral susceptibility to Halofolliculina sp. infection

H. Guzman, A. Cróquer, C. Bastidas, 2009, Coral Reefs.

Status of coral reefs and associated ecosystems in southern Tropical America: Brazil, Colombia, Costa Rica, Panamá and Venezuela

A. Rodriguez-Ramirez, Z. M. Leão, R. Kikuchi, 2008 .

Pacifigorgia marviva (Anthozoa: Octocorallia) a new species from Coiba National Park, Pacific Panama

H. Guzman, O. Breedy, 2011, Journal of the Marine Biological Association of the United Kingdom.

Species richness change across spatial scales

Patrick L. Thompson, Anne D. Bjorkman, Jarrett E. K. Byrnes, 2019, Oikos.

Antiprotozoal Activity Against Plasmodium falciparum. and Trypanosoma cruzi. of Aeroplysinin-1 Isolated from the New Sponge Aplysina chiriquensis.

H. Guzman, R. Riguera, E. Quiñoá, 2005 .

Global Human Footprint on the Linkage between Biodiversity and Ecosystem Functioning in Reef Fishes

C. Mora, M. Loreau, D. Tittensor, 2011, PLoS biology.

Uprolides N, O and P from the Panamanian Octocoral Eunicea succinea

W. Gerwick, H. Guzman, P. L. Fernández, 2016, Molecules.

Reef coral reproduction in the eastern Pacific: Costa Rica, Panamá, and the Galápagos Islands (Ecuador). VI. Agariciidae, Pavona clavus

P. Glynn, H. Guzman, J. Cortés, 2011 .

Reef recovery 20 years after the 1982–1983 El Niño massive mortality

H. Guzman, J. Cortés, 2007 .

Fishery of the Green Jack Caranx caballus (Osteichytes: Carangidae) in Las Perlas Archipelago, Pacific Panama.

H. Guzman, J. Mair, R. Cipriani, 2012, Revista de biologia tropical.

Cocos Island (Pacific of Costa Rica) coral reefs after the 1982-83 El Niño disturbance

H. Guzman, J. Cortés, 2016 .

Reef coral reproduction in the equatorial eastern Pacific: Costa Rica, Panamá, and the Galápagos Islands (Ecuador). VII. Siderastreidae, Psammocora stellata and Psammocora profundacella

J. Ault, H. Guzman, J. Cortés, 2012, Marine Biology.

Reef coral reproduction in the equatorial eastern Pacific: Costa Rica, Panamá, and the Galápagos Islands (Ecuador). VII. Siderastreidae, Psammocora stellata and Psammocora profundacella

J. Ault, H. Guzman, I. Baums, 2012 .

Status of Coral Reefs in Southern Tropical America in 2000-2002: Brazil, Colombia, Costa Rica, Panama and Venezuela

A. Rodriguez-Ramirez, Z. M. Leão, H. Guzman, 2002 .

Population structure, distribution and abundance of three commercial species of sea cucumber (Echinodermata) in Panama

H. Guzman, C. Guevara, 2002 .

Distribution and diversity of echinoderms (Asteroidea, Echinoidea, Holothuroidea) in the islands of the Gulf of Chiriqui, Panama

H. Guzman, J. Alvarado, O. Breedy, 2012 .

Spatio-temporal patterns in coral reef composition and function across an altered environmental gradient: A 15-year study in the Caribbean

H. Guzman, J. Sunday, Julia K. Briand, 2023, Frontiers in Marine Science.

Diet of the corallivorous pufferfish Arothron meleagris (Pisces: Tetraodontidae) at Gorgona Island, Colombia

H. Guzman, Juan D López, 2016 .

A revision of the genus Psammogorgia Verrill, 1868 (Cnidaria, Anthozoa, Octocorallia) in the tropical eastern Pacific Ocean

H. Guzman, O. Breedy, 2020, ZooKeys.

Sea Anemones (Cnidaria: Actiniaria and Corallimorpharia) from Panama

H. Guzman, A. Garese, F. Acuña, 2009 .

Widespread local chronic stressors in Caribbean coastal habitats

B. Kjerfve, A. Rodriguez-Ramirez, H. Guzman, 2017, PloS one.

Historical Decline in Coral Reef Growth after the Panama Canal

H. Guzman, J. Jackson, R. Cipriani, 2008, Ambio.

Mapping benthic faunal communities in the shallow and deep sediments of Las Perlas Archipelago, Pacific Panama.

H. Guzman, J. Mair, Jeffrey A. SIBAJA-CORDERO, 2009, Marine pollution bulletin.

Antibacterial Activity of Volatile Organic Compounds Produced by the Octocoral-Associated Bacteria Bacillus sp. BO53 and Pseudoalteromonas sp. GA327

H. Guzman, Armando A. Durant-Archibold, Marcelino Gutiérrez, 2020, Antibiotics.

Analysis of interspecific variation in relative fatty acid composition: use of flow cytometry to estimate unsaturation index and relative polyunsaturated fatty acid content in microalgae

H. Guzman, Adelina de la Jara Valido, Karen Freijanes Presmanes, 2011, Journal of Applied Phycology.

A revision of the genus Leptogorgia Milne Edwards & Haime, 1857 (Coelenterata: Octocorallia: Gorgoniidae) in the eastern Pacific

H. Guzman, O. Breedy, 2007 .

Migratory preferences of humpback whales between feeding and breeding grounds in the eastern South Pacific

M. Scheidat, H. Guzman, F. Félix, 2017 .

Benthic Community Recovery from Small-Scale Damage on Marginal Caribbean Reefs: An Example from Panama

H. Guzman, A. O’Dea, C. Schlöder, 2013 .

Reproductive cycle of two commercial species of sea cucumber (Echinodermata: Holothuroidea) from Caribbean Panama

H. Guzman, C. Guevara, I. C. Hernández, 2003 .

Population Assessment of the Pacific Green Spiny Lobster Panulirus gracilis in Pacific Panama

H. Guzman, J. Mair, R. Cipriani, 2008 .

ASSESSMENT OF THE QUEEN CONCH STROMBUS GIGAS (GASTROPODA: STROMBIDAE) POPULATION IN CAYOS COCHINOS, HONDURAS

H. Guzman, G. Jácome, A. Tewfik, 1998 .

Density, size, and biomass of Diadema mexicanum (Echinoidea) in Eastern Tropical Pacific coral reefs

H. Guzman, J. Cortés, H. Reyes‐Bonilla, 2016 .

Non-traditional fishing areas in the Caribbean have been targeted for supplying the Asian market in recent years (

H. Guzman, C. Guevara, I. C. Hernández, 2003 .

Population Assessment of the Conch Strombus galeatus (Gastropoda, Strombidae) in Pacific Panama

H. Guzman, R. Cipriani, Melina Lopez, 2008 .

Chronology of mercury enrichment factors in reef corals from western Venezuela.

H. Guzman, R. Ramos, R. Cipriani, 2009, Marine Pollution Bulletin.

Decadal increase in seagrass biomass and temperature at the CARICOMP site in Bocas del Toro, Panama.

H. Guzman, Jorge López-Calderón, G. Jácome, 2013, Revista de biologia tropical.

Marine habitats map of "Isla del Caño", Costa Rica, comparing Quickbird and Hymap images classification results.

H. Guzman, J. Cortés, Carlomagno Soto, 2009, Revista de biologia tropical.

Effects of chronic oil-sediment pollution on the reproduction of the Caribbean reef coral Siderastrea siderea☆

H. Guzman, I. Holst, Irene Holst, 1993 .

VANADIUM CENTURY RECORD FROM CARIBBEAN REEF CORALS: A TRACER OF OIL POLLUTION IN PANAMA

H. Guzman, K. Jarvis, 1996 .

Environmental interpretation using insoluble residues within reef coral skeletons: problems, pitfalls, and preliminary results

H. Guzman, A. Budd, K. O. Mann, 1993, Coral Reefs.

Global spatial risk assessment of sharks under the footprint of fisheries

N. E. Humphries, T. White, V. Eguíluz, 2019, Nature.

Mangrove forest composition and structure in Las Perlas Archipelago, Pacific Panama.

H. Guzman, J. Mair, José Guevara, 2009, Revista de biologia tropical.

Broadening reef protection across the Marine Conservation Corridor of the Eastern Tropical Pacific: distribution and diversity of reefs in Las Perlas Archipelago, Panama

Sarah L. Benfield, H. Guzman, J. Mair, 2008, Environmental Conservation.

Movements and Habitat Use by Southeast Pacific Humpback Whales (Megaptera novaeangliae) Satellite Tracked at Two Breeding Sites

H. Guzman, F. Félix, 2017 .

Satellite Tracking and Sighting Data Analyses of Southeast Pacific Humpback Whales (Megaptera novaeangliae): Is the Migratory Route Coastal or Oceanic?

H. Guzman, F. Félix, 2014 .

Ship's compliance with a traffic separation scheme and speed limit in the Gulf of Panama and implications for the risk to humpback whales

H. Guzman, S. Kaiser, Natasha Hinojosa, 2020 .

Population size and migratory connectivity of humpback whales wintering in Las Perlas Archipelago, Panama

R. Condit, H. Guzman, P. Stevick, 2015 .

seco-Briarellinone and Briarellin S, Two New Eunicellin-Based Diterpenoids from the Panamanian Octocoral Briareum asbestinum

H. Guzman, P. L. Fernández, A. Ariza-Castolo, 2012, Marine drugs.

New Eunicellin-Type Diterpenes from the Panamanian Octocoral Briareum asbestinum

H. Guzman, E. Talero, V. Motilva, 2020, Marine Drugs.

A new species of Leptogorgia (Coelenterata: Octocorallia: Gorgoniidae) from the shallow waters of the eastern Pacific

H. Guzman, O. Breedy, 2005 .

The morphology and structure of the Hannibal Bank fisheries management zone, Pacific Panama using acoustic seabed mapping.

R. Bates, H. Guzman, S. Cunningham, 2013, Revista de biologia tropical.

A revision of the genus Muricea Lamouroux, 1821 (Anthozoa, Octocorallia) in the eastern Pacific. Part II

H. Guzman, O. Breedy, 2016, ZooKeys.

Survival, growth, and recruitment of octocoral species (Coelenterata: Octocorallia) in Coiba National Park, Pacific Panama

H. Guzman, Catalina G. Gomez, O. Breedy, 2014 .

Discovery of a new species of Leptogorgia Milne Edwards & Haime, 1857 (Anthozoa: Octocorallia: Gorgoniidae) from eastern tropical Pacific mesophotic reefs

H. Guzman, S. Vargas, O. Breedy, 2021, Marine Biodiversity.

Molecular phylogeny and DNA barcoding of tropical eastern Pacific shallow-water gorgonian octocorals

H. Guzman, G. Wörheide, S. Vargas, 2014 .

A new species of Leptogorgia (Cnidaria: Anthozoa: Octocorallia) from Golfo Dulce, Pacific, Costa Rica

H. Guzman, O. Breedy, 2012 .

Leptogorgia christiae (Octocorallia: Gorgoniidae) a new shallow water gorgonian from Pacific Panama

H. Guzman, O. Breedy, 2008, Journal of the Marine Biological Association of the United Kingdom.

A revision of the genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae)

H. Guzman, O. Breedy, 2002 .

A NEW SPECIES OF THE GENUS EUGORGIA (CNIDARIA: OCTOCORALLIA: GORGONIIDAE) FROM MESOPHOTIC REEFS IN THE EASTERN PACIFIC

H. Guzman, O. Breedy, 2013 .

A New Species of Leptogorgia (Cnidaria: Anthozoa: Octocorallia) from the Mexican Pacific Coast

H. Guzman, Rosalinda Abeytia, O. Breedy, 2012 .

Octocorals From Costa Rica: The Genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae)

H. Guzman, O. Breedy, 2003 .

A revision of the genus Eugorgia Verrill, 1868 (Coelenterata: Octocorallia: Gorgoniidae)

H. Guzman, S. Vargas, O. Breedy, 2009 .

Leptogorgia ignita, a new shallow-water coral species (Octocorallia: Gorgoniidae) from the tropical eastern Pacific

H. Guzman, O. Breedy, 2008, Journal of the Marine Biological Association of the United Kingdom.

Revision of the genus Adelogorgia Bayer, 1958 (Cnidaria: Anthozoa: Octocorallia) with the description of three new species.

H. Guzman, O. Breedy, 2018, Zootaxa.

A new Muricea species (Cnidaria, Anthozoa, Octocorallia) from the eastern tropical Pacific

H. Guzman, O. Breedy, 2016, ZooKeys.

A revision of the genus Muricea Lamouroux, 1821 (Anthozoa, Octocorallia) in the eastern Pacific. Part I: Eumuricea Verrill, 1869 revisited

H. Guzman, O. Breedy, 2015, ZooKeys.

Population decline and the effects of disturbances on the structure and recovery of octocoral communities (Coelenterata: Octocorallia) in Pacific Panama

H. Guzman, Catalina G. Gomez, Andrew Gonzalez, 2014, Journal of the Marine Biological Association of the United Kingdom.

A revision of the genus Heterogorgia Verrill, 1868 (Anthozoa: Octocorallia: Plexauridae)

H. Guzman, O. Breedy, 2011 .

A new species of alcyonacean octocoral from the Galápagos Archipelago

H. Guzman, O. Breedy, 2005, Journal of the Marine Biological Association of the United Kingdom.

New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama

H. Guzman, O. Breedy, 2004 .

A New Species of Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) From Panamá

H. Guzman, O. Breedy, 2003 .

Distichopora robusta sp. nov., the first shallow-water stylasterid (Cnidaria: Hydrozoa: Stylasteridae) from the tropical eastern Pacific

H. Guzman, S. Cairns, A. Lindner, 2004, Journal of the Marine Biological Association of the United Kingdom.

Multiscale change in reef coral species diversity and composition in the Tropical Eastern Pacific

H. Guzman, Catalina G. Gomez, Andrew Gonzalez, 2018, Coral Reefs.

Quick estimation of intraspecific variation of fatty acid composition in Dunaliella salina using flow cytometry and Nile Red

H. Guzman, Adelina de la Jara Valido, Karen Freijanes Presmanes, 2012, Journal of Applied Phycology.

Distribution of Idanthyrsus cretus ( Polychaeta: Sabellariidae) in the Tropical Eastern Pacific and application of PCR-RAPD for population analysis

H. Guzman, J. Mair, S. Chambers, 2009 .

Caribbean coral growth influenced by anthropogenic aerosol emissions

P. Cox, P. Mumby, B. Booth, 2013 .

Vocalizations of wild West Indian manatee vary across subspecies and geographic location

M. Magnasco, H. Guzman, Maria Maust-Mohl, 2023, Scientific reports.

Bioacoustic Classification of Antillean Manatee Vocalization Spectrograms Using Deep Convolutional Neural Networks

Fernando Merchan, Héctor Poveda, Javier E. Sanchez-Galan, 2020, Applied Sciences.

Genetic Composition and Connectivity of the Antillean Manatee (Trichechus manatus manatus) in Panama

H. Guzman, Margaret E. Hunter, E. Díaz-Ferguson, 2017 .

One-Third of Reef-Building Corals Face Elevated Extinction Risk from Climate Change and Local Impacts

A. Edwards, A. Rogers, G. Edgar, 2008, Science.

Corals at the edge of environmental limits: A new conceptual framework to re-define marginal and extreme coral communities.

Justin H. Baumann, S. Comeau, B. Riegl, 2023, The Science of the total environment.

Temporal mangrove dynamics in relation to coastal development in Pacific Panama.

Sarah L. Benfield, H. Guzman, J. Mair, 2005, Journal of environmental management.

Complete mitochondrial genome of Muricea crassa and Muricea purpurea (Anthozoa: Octocorallia) from the eastern tropical Pacific

H. Blum, H. Guzman, S. Krebs, 2016, bioRxiv.

Assessing the herbivore role of the sea-urchin Echinometra viridis: Keys to determine the structure of communities in disturbed coral reefs.

H. Guzman, C. Sangil, 2016, Marine environmental research.