The Sargassum Podcast

The Sargassum Podcast

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The Sargassum Podcast episodes

  • E56 La realidad del sargazo en las costas de Quintana Roo, México

    Rosa Elisa Rodríguez Martínez, nos explica cómo fue que los investigadores de la Universidad Nacional Autónoma de México comenzaron a estudiar los efectos del sargazo en los ecosistemas costeros. Ha realizado diversos estudios relacionados con la llegada masiva de sargazo pelágico al Caribe mexicano enfocados a entender sus efectos ambientales y a encontrar formas de manejo adecuadas. Entre sus estudios se incluye el análisis de la variabilidad espacial y temporal de los arribos, el impacto de la acumulación y descomposición del sargazo en la flora y fauna costera, el análisis de elementos potencialmente tóxicos para los ecosistemas costeros y acuífero, y la exploración de usos potenciales.  1:48 Presentando a Rosa Rodriguez 3:21 Que es el sargazo para Rosa Rodriguez  4:30 Zara comenta del Plan de Acción en Honduras para la llegada de sargazo 5:54 Inicio de los estudios del sargazo pelágico en el Laboratorio de Ecología de     Arrecifes en la Unidad Académica de Puerto Morelos 10:09 Dificultades en el estudio del sargazo 13:56 La realidad del manejo del sargazo  15:00 ¿Qué les pasa a los arrecifes con el sargazo? 16:24 El caso de Bahía Petempich  18:02 El microbioma y elementos en el sargazo 21:50 El impacto más visible con los arribos de sargazo 22:56 ¿En que se convierte el sargazo después de estar en la playa? 24:04 Un estimado de cuántos metros cúbicos de sargazo llega por km cuadrado de playa en México 27:55 Los riesgos a la salud para las personas que limpian el sargazo podrido 31:50 Sensores de medición de ácido sulfhídrico  32:06 ¿Franceses estudiando sargazo en México?  33:37 Usos potenciales del sargazo  41:35 Recomendaciones para los países que apenas empiezan a tener los arribos masivos de sargazo 48:50 Hablando de barreras anti sargazo  50:00 Conclusiones  Links  http://www.icmyl.unam.mx/puerto_morelos/uves/es/quienes_somos/personal_academico/men-c-rosa-elisa-rodriguez-martinez https://github.com/rerodriguezmtz?tab=repositories https://www.researchgate.net/profile/Rosa-Rodriguez-Martinez https://scholar.google.com.mx/citations?user=Esi00qMAAAAJ&hI=es

    58 min
  • E55 Suddenly Sargassum: a multilingual education book for St. Martin w/ Mark Yokoyama

    Mark Yokoyama is a naturalist, author and wildlife educator living in St. Martin who has published many books about the nature and culture of St. Martin. He is also the co-founder and treasurer of the non profit association Les Fruits de Mer. Their core mission is to collect and share knowledge about local nature and heritage. They run a museum called Amuseum Naturalis which is a free museum on nature, heritage and culture in St. Martin. They distribute free books about local subjects to students and schools on the island.  

    0:00 Introduction 

    2:18 Guest introduction 

    3:10 What is Sargassum to Mark? 

    4:30 Impact of Sargassum on St. Martin 

    5:56 Management of Sargassum on St. Martin an island with two governments- lots of groups involved and lots of coordination needed 

    9:00 How he got all the great pictures and content for his new book Suddenly Sargassum  

    11:40 The books will go to schools and stakeholders and a display was made in the Les Fruits de Mer museum. It will get kids interested in science and provide locally relevant educational material in both English and French 

    15:55 Offical school language in St. Martin is French but most kids are primarly English speakers 

    18:55 What does a naturalist, author and wildlife educators do? 

    23:10 Debrief  

    Learn more about Mark Yokoyama and his work:   

    - Les fruits de mer website

    - Book Suddenly Sargasssum:

    Buy link
    Download link
    French version Le mystère des sargasses
    Buy on Amazon
    Free download

    Link to other books


    We love to hear from you, feel free to drop us an email to [email protected], and connect with us on social media: Facebook, Twitter, Instagram, LinkedIn.

    Can’t get enough? Become one of our patrons for as little as $1 a month. Patrons get to submit questions to us prior to the interviews that we will then ask our guests. We are grateful for each supporter and look forward to connecting with you.

    Like our music? The song is called Them Ah Prey by Drizzle Roadranna. Follow him on YouTube and Spotify

    28 min
  • E54: Conociendo la relación del sargazo pelágico y Physalia physalis con Eduardo Gabriel Torres Conde

    Eduardo Gabriel Torres Conde actualmente es un estudiante de Doctorado del posgrado de ciencias biológicas de la Universidad Nacional Autónoma de México en el Instituto de Ciencias del Mar y Limnología. Se graduó como biólogo en la Universidad de la Habana en Cuba y posteriormente hizo una maestría en Biología Marina y Acuicultura con mención en Ecología Marina. Como parte de su proyecto de doctorado trabaja en la restauración de las praderas de pastos marinos que han sido afectadas por las mareas marrones de Sargassum spp.  a las costas del Caribe mexicano.  

     2:44 Reseña de Eduardo Torres Conde  

    4:40 Eduardo explica que es el sargazo para el 

    7:59 ¿Cuándo fue la primera vez que se reportó el arribo de Sargazo a Cuba? 

    10:21 ¿En qué consisten los trabajos espacio temporales de sargazo? 

    11:44 Zara comenta las condiciones del sargazo en la isla de Roatán 

    12:25 Paola comenta la llegada del sargazo en Honduras y Costa Rica  

    12:47 Eduardo opina de que depende la llegada del sargazo a ciertas playas  

    13:14 Índice de oscilación del Ártico 

    13:53 Vientos alisios 

    17:01 Evelyn comenta en cuanto a usar organismos como indicadores del cambio climático   

    17:46 ¿Quién es Physalia physalis?  

    20:02 ¿Cómo relacionas el arribo de sargazo a Cuba con Physalia physalis en tu trabajo publicado? 

    25:36 El timón de Physalia physalis 

    26:52 Avistamientos de Physalia physalis y sargazo  

    28:33 Zara comenta algunos impactos del sargazo en Roatán 

    29:56 ¿Cómo ha afectado el sargazo a los pastos marinos en donde realizas tu trabajo de doctorado? 

    33:47 Lo que más le ha llamado la atención del sargazo a Eduardo  

    40:07  ¿Que se puede hacer para iniciar un estudio espacio temporal en donde apenas está llegando sargazo? 

    44:34 ¿Cómo entender en qué lugares si llega sargazo y cuáles no? 

    45:59 ¿Qué falta por hacer? coordinar monitoreos-homogeneizar datos 

    49:58 Que aprendieron las Hosts   

    Si quieres saber más sobre el trabajo de Eduardo:  

    ֍ Research gate

    Si quieres ponerte en contacto con nosotros mándanos un e-mail a [email protected] o conecta con nosotros a través de las redes sociales  facebook,  twitter,  instagram,  linkedin.   Quieres más? Conviértete en uno de nuestros patrocinadores desde 1 USD al mes!

    Conocerás a nuestros próximos invitados y podrás hacerles preguntas. Agradecemos enormemente cualquier apoyo y estamos deseando conectar con todos ustedes!

    1 hr 8 min
  • E53: How Sargassum impacts the communities of Quintana Roo and Florida with Judith Rosellon, Justin Suca and Laura McAdam-Otto

    Judith Rosellon is a biologist and oceanographer with extensive experience in fisheries management and ecology, marine spatial management, evaluation of marine protected areas, and fisheries stock assessment. She has a Ph.D. from the School of Marine Science and Technology (SMAST) at UMass Dartmouth and worked as a Postdoctoral fellow at the College of Fisheries and Ocean Sciences (CFOS) at the University of Alaska Fairbanks (UAF). She is currently a lead researcher at the National Council for Science and Technology or CONACYT (Consejo National de Ciencia y Tecnología). Her international background, and oceanographic studies both in Mexico and USA make it possible for her to understand, develop, and coordinate complex marine co-management and policy projects between US and Latin American countries.   


    Justin Suca is a  fish ecologist at the Cooperative Institute for Marine and Atmospheric Research in Honolulu, Hawaiʻi. His research includes studies on the diet and growth of fish, but he typically focuses on understanding and predicting the distribution and abundance of fisheries-relevant species. He got involved with this project because he grew up in Florida and had experienced sargassum inundation in his high school and college years. It also provided an opportunity to connect with the fishing communities he grew up around.   

    Laura McAdam-Otto is an anthropologist at the Goethe University in Frankfurt, Germany. Her work focuses on governance practices in the field of both forced migration and anthropogenic environmental change. Her research and teaching are located at the interface of anthropology, cultural studies, science, and technology studies.    Together as a team, they worked on the project  "Binational local knowledge of Sargassum events" which was supported by the US Department of State through the "Partners of the Americas" grant program. The objective of this project in particular was to document local knowledge of coastal communities of Mexico (Quintana Roo) and the US (Florida) regarding atypical influxes of Sargassum.   

    Listen to the episode to learn about:  
    0:31 - Introduction of the guests
    5:13 - What’s Sargassum to you?
    9:32 - Project and activities from guests  
    27:58 - As the Sargassum problem is inter-regional and at the same time often territory-specific, have you extended your research beyond Mexico and Florida, to other territories in the Caribbean or have you had exchanges with inhabitants or scientists or politicians from other places affected by Sargassum?
    39:16 - Sargassum flyer in Maya
    43:15 - Methodology: social science research  
    1:04:00 - Justin’s fieldwork experience
    1:06:46 - Social Injustice and Environmental Injustice Association with Sargassum  

    To get to know more about our guests:  

    Website of Laura McAdam-Otto  

    Lab group of Judith Rosellon


    1 hr 24 min
  • E52: Acción ciudadana de Sargazo en Costa Rica con Jose Ugalde

    La llegada masiva de Sargazo flotante al Caribe de Centroamérica es un evento relativamente nuevo. Y el papel de las personas de la comunidad es un punto clave para comenzar los inicios del manejo de este fenómeno. Don José es pescador artesanal miembro de la Asociación de Pescadores del Caribe Sur de Costa Rica. Es co-director del proyecto regional para manejo y control del pez león ha logrado ser parte de la creación y publicación del protocolo para el manejo óptimo de pez león en conjunto con otros países como México, Panamá, Colombia y Belice. Ha participado en la escritura de artículos para revistas internacionales y actualmente es parte del consejo de áreas de conservación del caribe en el tema del manejo y prevención del sargazo.  

    Entrevistamos a Jose para que nos contara más sobre su papel como miembro de la comunidad y parte del consejo sobre la situación actual de la llegada masiva de Sargazo a Costa Rica.  

    3:00 introducción sobre Jose Ugalde y su rol en la comunidad del Caribe Sur de Costa Rica 

    4:50 Que es el Sargazo para Jose Ugalde? 

    6:23 ¿Es la primera vez que llega Sargazo a la comunidad del Caribe Sur de Costa Rica?  

    8:55 La participación de Don Jose en su comunidad 

    10:10 La participación de Don Jose en cuanto a la llegada de Sargazo 

    11:20 Cómo se ven afectadas las actividades por Sargazo en las comunidades 

    12:40 Afectación de la llegada masiva de Sargazo a los pescadores  

    13:40 Organización de la comunidad ante la llegada de Sargazo 

    17:25 ¿Qué piensa Don Jose que es importante incluir para lograr un mejor manejo de este evento? 

    20:20 La importancia del Caribe Sur y su protección.


    Si quieres saber más sobre el trabajo de jose, aquí tienes los links a sus proyectos:  

    ֍ Asociacion De Pescadores Artesanales Del Caribe Sur Facebook 

    ֍ Asociacion De Pescadores Artesanales Del Caribe Sur Instagram   

    Si quieres ponerte en contacto con nosotros mándanos un e-mail a [email protected] o conecta con nosotros a través de las redes sociales  facebook,  twitter,  instagram,  linkedin .   Quieres más? Conviértete en uno de nuestros patrocinadores desde 1 USD al mes! Conocerás a nuestros próximos invitados y podrás hacerles preguntas. Agradecemos enormemente cualquier apoyo y estamos deseando conectar con todos ustedes!    Te gusta nuestra música? La canción se llama: “Them Ah Pree” de Drizzle Roadranna. Síguele en Spotify   y youtube 

    32 min
  • E 51: The long road to a Sargassum barrier with Rolando Chavez Penaherrera

    Rolando Chavez Penaherrera is the Latin American General manager for the Enviro-Clean segments of DESMI and Head of DESMI SEAWEED Division.DESMI is Danish manufacturer of pumps, pumping systems, environmental cleaning equipment and related products and services, Founded in 1834 and headquartered in Denmark, DESMI provides pumping solutions to end-markets including marine and offshore, industrial, utility, and defense and fuel. The company also provides environmental solutions for oil spill response, seaweed collection and cleaning waterways. Next to managing oil spills they also started in 2014 designing products for Sargassum management.   

    Listen to the episode to learn about:   

    1:31 : Presentation of Rolando  

    2:20 : Localization of the office 

    2:46 : What is sargassum to Rolando 

    4:26 : How Desmi decided to make a barrier of sargassum 

    10:07 : How do the barriers work 

    12:24 : Type of anchors used for the boom 

    14:24 : Wave resistance of the boom 

    17:04 : How to remove the boom and the time needed for it 

    20:17 : Transfer systems used to remove sargassum from the water 

    24:36 : How to avoid bycatch  

    26:35 : Who are the customers buying the barriers 

    28:09 : Three years of testing needed before using the boom for cleaning public beaches : proven technology  

    29:10 : Future projects related to sargassum : how to always improve removal capacity 

    38:08 : Environmental approval  

    35:10 : Debriefs  

    Learn more about Rolando:   

    DESMI website 

    Rolando´s linkedIn 


    We love to hear from you, feel free to drop us an email to [email protected], and connect with us on social media: Facebook, Twitter, Instagram, LinkedIn.

    Can’t get enough? Become one of our patrons for as little as $1 a month. Patrons get to submit questions to us prior to the interviews that we will then ask our guests. We are grateful for each supporter and look forward to connecting with you.

    Like our music? The song is called Them Ah Prey by Drizzle Roadranna. Follow him on YouTube and Spotify

    39 min
  • E50 The voices of the invisible - Sargassum impacts fishing communities with Bethia Thomas

    Bethia Thomas is currently a postgraduate student at CERMES pursuing a PhD in Natural Resource Management. Her research seeks to venture into the novel territory of pelagic sargassum with special emphasis on a community-based participatory approach to vulnerability analysis and adaptation planning for pelagic sargassum influxes in the Eastern Caribbean, using the island of Saint Lucia as a case study.  Bethia joined us to talk about how sargassum impacts island communities in the Caribbean.  

    3:51 - What is sargassum to Bethia? 

    6:31 - How are the communities Bethia researches being impacted by sargassum? 

    11:50 - How has sargassum impacted fish populations around the communities? 14:00 - What kinds of solutions would people like to see regarding sargassum? 

    17:30 - What hurdles would make it hard to implement these solutions? 

    19:30 - What kinds of people did Bethia interview for her research? 

    24:00 - What else is Bethia working on? 

    30:07 - The wind-down  

    Watch the videos Bethia made together with the local communities 

     - Conversations – Sargassum Exchange. Brown Curse or Golden Blessing 

    - Sarg-Chat – A Praslin People Perspective on the Pelagic Plague 

    - Sargassum Talks – The People of Micoud Tell All  


    We love to hear from you, feel free to drop us an email to [email protected], and connect with us on social media: Facebook, Twitter, Instagram, LinkedIn.

    Can’t get enough? Become one of our patrons for as little as $1 a month. Patrons get to submit questions to us prior to the interviews that we will then ask our guests. We are grateful for each supporter and look forward to connecting with you.

    Like our music? The song is called Them Ah Prey by Drizzle Roadranna. Follow him on YouTube and Spotify

    43 min
  • Sargassum podcast Ep 49: Dr. Geoff Smith and Dr. Betsabe de la Barreda Bautista " SATELLITES, SARGASSUM, AND CARIBBEAN COASTLINES "

    Part of the problem with sargassum’s sudden proliferation is hard to track. Things like weather, currents, and even marine animals can make it challenging to understand where a sargassum beaching will occur and how big it might be when it does. Dr. Geoff Smith and Dr. Betsabe de la Barreda Bautista have a great solution: they’ve created a service that archives photos from satellites to create a working, updated map of the sargassum movement. Dr. Geoff Smith has a strong background in the fundamental interactions of radiation with vegetation and other surface materials. He has applied this knowledge in developing prototype systems to measure and monitor surface properties, with a particular focus on land cover. He has worked in academia, government research, and the private sector with links to UK, European and international organizations. Dr. Betsabe is an observational earth scientist who uses GIS and statistics to understand the environment. Her main research interests include vegetation response to climate events using remotely captured data, understanding how ecosystem productivity is linked to environmental conditions, and assessing vegetation condition and land cover change over time.

    You can find their incredible project at http://sasams.org/

    University of Nottingham             https://www.nottingham.ac.uk/Specto Natura Ltd                           http://www.specto-natura.co.uk/Hybrid Geospatial Ltd                    https://www.hybrid-geospatial.com/Centro de Investigación en Ciencias de Información Geoespacial, (CentroGeo)                                    https://www.centrogeo.org.mx/Instituto de Ciencias del Mar y Limnología, National Autonomous University of Mexico, (UNAM)              https://www.icmyl.unam.mx/Planet Labs Inc.                               https://www.planet.com/ UK Space Agency                             https://www.gov.uk/government/organisations/uk-space-agency .


    44 min
  • Sargassum podcast Ep 48: La llegada masiva de sargazo en Costa rica, con Cindy Fernandez.

    La llegada masiva de Sargazo flotante al Caribe de Centroamérica es un evento relativamente nuevo, es por ello que conocer cómo está la situación actual de este fenómeno es muy importante para responder a ello. Cindy Fernández como investigadora en el área de Ficología, ha comenzado iniciativas para conocer más sobre estas algas en el Caribe de Costa Rica.   Cindy está trabajando la parte de documentación sobre la llegada de esta alga y el análisis de metales pesados, conociendo estos aspectos importantes Cindy piensa que se puede tener una idea más clara para tratar este problema.  Entrevistamos a Cindy para que nos contara más sobre lo que está haciendo el laboratorio de Ficología de la Universidad de Costa Rica con respecto a la llegada masiva de Sargazo a sus costas.

    29 min
  • Sargassum podcast Ep 47: How drones can help quantify Sargassum with Kim Baldwin

    Kim Baldwin is a marine ecologist who uses geospatial tools and information technology to work with people to collaboratively create comprehensive spatial information to strengthen ecosystem-based environmental management in the Caribbean, California & beyond. 

    She is an integral part of Marine Spatial Information Solutions, which provides a range of geospatial mapping, analysis, and training services tailored to sargassum tracking and many other ecological surveying implications. Their training courses include drone flying, mapping and monitoring planning, GIS, participatory mapping, spatial analysis, information creation, and web-mapping collaboration tools. All projects are tailored to your needs to allow you to leverage information technologies to support environmental management more efficiently and effectively. 

      Learn more about Kim Baldwin and her project:

    - Instagram https://www.instagram.com/dronesorbust/- LinkedIn https://www.linkedin.com/in/drkimbaldwin/

    - Facebook https://www.facebook.com/MarineSpatialInformationSolutions- Website 

    - Marine Spatial Information Solutions, Inc.  https://www.marsis.us/- Email List for more information on the upcoming Sargassum training course: http://eepurl.com/hW-SlH    

    - CERMES Website: https://www.cavehill.uwi.edu/cermes/getdoc/d3e05941-1216-4c43-af81-788832769b08/16945.aspx- SargAdapt - Sargassum Monitoring Protocol (PDF)  https://www.cavehill.uwi.edu/cermes/projects/sargassum/docs/sargadapt/baldwin_et_al_2022_smp_guide_final_v1_03-03-22.aspx

    49 min

About The Sargassum Podcast

From the publisher's feed

Since 2011, vast masses of the free-floating algae Sargassum have been washing ashore on Caribbean beaches – some leaving coastlines three feet deep in seaweed. When it isn't rotting on beaches,…