XI International Symposium on Fish Parasites

Fish Health, Parasites and Biodiversity Conservation

Fish parasitologists! please join us for the XI International Symposium on Fish Parasites (ISFP) 20 – 24 January, 2025

Abstract submission by September 15th, 2024.
Registration is open now!

Symposium format

XI ISFP will include 45 min. plenary talks (plus 15 min. for questions), 12 min. conference presentations (plus three minutes for questions), and posters. Parallel sessions will take place simultaneously. No live stream will be implemented since this is not a hybrid event. All presentations will be given in person. The event will include the Acanthocephala workshop, and the Horizon Scanning workshop, and a mini-symposium on Parasite Conservation.

ISFP International Committee

Dr. Kurt Buchman.
University of Copenhagen (Denmark) – Chair

Isaure de Buron-Connors.
College of Charleston (USA)

Monica Caffara.
University of Bologna (Italy) 

Mélanie Gay.
Bacteriology and Parasitology of Fishery and Aquaculture Products unit of ANSES’s (France) 

Arne Levsen.
Institute of Marine Research (Norway) 

Barbara Nowak.
University of Tasmania (Australia)

Marcelo E. Oliva.
Universidad de Antofagasta (Chile)

Sho Shirakashi.
Kindai University (Japan)

Andrea Šimková.
Masaryk University – Brno (Czech Republic)

Liesl Van As.
University of Free State (South Africa)

Gerardo Pérez-Ponce de León.
Universidad Nacional Autónoma de México (Mexico)

Local Organizing Committee ISFP XI

Gerardo Pérez-Ponce de León (Chair)
Escuela Nacional de Estudios Superiores-Mérida, UNAM

Leopoldina Aguirre Macedo
Centro de Investigación y Estudios Avanzados-Mérida, IPN

Martín García Varela
Instituto de Biología, UNAM

Mayra Grano Maldonado
Universidad Autónoma de Sinaloa

Sergio Guillén Hernández
Universidad Autónoma de Yucatán

Ma. Amparo Rodríguez Santiago
Consejo Nacional de Ciencias Humanidades y Tecnología e Instituto de Ciencias del Mar y Limnología, UNAM

Miguel Rubio Godoy
Instituto de Ecología, A.C.

Victor Manuel Vidal Martínez
Centro de Investigación y Estudios Avanzados-Mérida, IPN


Centro Cultural Universitario, Universidad Autónoma de Yucatán (UADY)
Calle 60 No. 491-A x 57. Centro Histórico, Mérida, Yucatán.

The Cultural Center of the Autonomous University of Yucatán is the main center of the State´s main academic institution. It’s a set of venues specialized in the dissemination of the highest expressions of science and art; a convergence point for a wide array of academic, artistic, cultural, institutional, governmental activities, etc.

It is located in the old building that housed the University since its foundation. The venues that make it up are fundamental support for teaching and research tasks. It could be said that they constitute the heart of arts and sciences. Here, the University communicates the wealth of human creation with the community and organizes society’s explorations into a set of activities aimed at both university students and society as a whole.

Keynote speakers

Isabel Blasco-Costa

Natural History Museum of Geneva, Switzerland.

Topic: Parasite biodiversity and eco-evolution in aquatic systems

Gabriela Tomas Jerônimo

Faculdade de Ciências Agrárias, Universidade Federal do Amazonas, Brazil

Topic: Fish Parasites and aquaculture

Anindo Choudhury

St. Norbert College, De Pere, Wisconsin, U.S.A.

Topic: Historical biogeography of freshwater fish parasites

Chelsea Wood

School of Aquatic and Fishery Science, University of Washington, U.S.A.

Topic: Parasite ecology in marine and freshwater ecosystems, and parasite conservation

Victor Vidal-Martínez

Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Unidad Mérida, Mexico

Topic: Environmental parasitology. Fish parasites in the Gulf of Mexico



What is Horizon Scanning?

Horizon Scanning is widely used as a systematic process to gather information and analyze or prioritize it to identify emerging issues and develop potential opportunities. It is a technique for detecting early signs of potentially important developments through a systematic examination of potential threats and opportunities, with emphasis on new technology and its effects on the issue at hand. The method calls for determining what is constant, what changes, and what constantly changes. It explores novel and unexpected issues as well as persistent problems and trends, including matters at the margins of current thinking that challenge past assumptions.

The objective of the Global Horizon Scanning Project for Fish Parasitology, is to establish the research priorities and provide it to the relevant scientific communities, as well as Research Funding organizations. It further provides a unique opportunity for scientists to directly inform long-range planning and identify future research needs in fish parasitology.

Scanning Horizon Workshop during ISFPXI, Mérida, Yucatán, Mexico.


Nico Smit.  Water Research Group, North-West University (NWU), South Africa.

Kerry Hadfield Malherbe. Water Research Group, North-West University (NWU), South Africa.


Organizer: Martín García Varela, Instituto de Biología, UNAM, Mexico

Acanthocephalans, also known as thorny-headed worms, belong to a relatively small group of obligate endoparasites occurring, as adults, in the alimentary tract of vertebrates. This monophyletic and enigmatic group of endoparasites have been target numerous studies related to their ecology, host-parasite relationships, pathogenicity, phylogeography, taxonomy and systematics. The international community of researchers periodically organize meetings to discuss relevant aspects of the study of acanthocephalans; the first meeting was held in 1983 in Texas, USA; the 10th edition of the workshop was in Dijon, France in 2022; the workshop in Dijon included the participation of 24 researchers from 12 countries across the world; several aspects molecular biology, taxonomy, systematics, cytogenetics, evolutionary ecology, and ecotoxicology of Acanthocephalans where analyzed. The group also discussed the present and future perspectives of the study of acanthocephalans. The group decided to conduct the 11th edition of the workshop during the International Symposium on Fish Parasites that will be held in Mérida, Yucatán, Mexico in January 20-24, 2025.

Picture of attendees to the 10th Acanthocephala Workshop in Dijon, France, September 2022


The registration fee includes admission to all conference and workshop sessions from Monday Jan 20 to Friday Jan 24th, coffee breaks (one in the morning, one in the afternoon) on four conference days (21st to 24th), and welcome reception catered social event on Monday 20th afternoon.

Three rates are considered: 1. Student rate, which applies to currently enrolled undergraduate and graduate (masters and PhD) students only; 2. Postdoctoral fellows and Early Career Researchers (academics with less than 5 years as independent researchers); and 3. Regular participants (researchers/professors).

Attendants must cover the registration fee before November 30th, 2024. Registration will not be possible during the symposium. Prices are in US Dollars (USD) and include tax.

Conference dinner: 100 USD (Purchased separately)

*Accompanying person fee includes welcome catered social event and coffee breaks during the symposium

Registration includes:

  • Admission to all sessions and workshops (20th-24th)
  • Coffee breaks. One in the morning (coffee, tea, water, cookies, pastries), and one in the evening (coffee, tea, water, salty snacks) (21st-24th). Coffee, tea, and water available continuously from 10:00 AM-6:00 PM.
  • Welcome catered social mixer (canapes and drinks) on Monday (January 20th)

Registration does not include admission to the conference dinner nor accommodation (see the list provided, including two hotels (Gamma hotel by Fiesta Inn, and Holiday Inn Express), both 3-min walk to the venue, which provide a special rate to symposium participants).

Mixer and conference dinner

XI ISFP will start on January 20th with a catered social event at the central patio of the Centro Cultural Universitario (cost included in the registration fee), immediately after inauguration and a welcome plenary conference.

The conference dinner for ISFP XI will be held on January 23rd (Thursday evening) at the Museo de la Gastronomía Yucateca, a restaurant that promotes the cultural and gastronomic wealth of the state of Yucatán, located in downtown Mérida. The cost of dinner is not included in the conference registration; it is purchases separately at $100 USD. The restaurant holds up to 230 seats and will be closed as a private event for participants of the ISFP; purchasing dinner tickets will be on a first come, first served basis. Dinner will include three courses and an open bar for 3 hours.

Early Bird Registration October 15th, 2024. Registration will be only online. No registration will be on site.

For an abstract to be included in the final program, it must be paid in full.

Abstract submission

Deadline: September 15th, 2024

Notification of acceptance: by mid October, 2024

Submission deadline is September 15th, 2024. The organizing committee will confirm acceptance of the abstract within a month and will provide an acceptance letter to assist participants on securing funds to attend or for visa requirements. However, final acceptance is conditional upon payment of the registration fee. Information on the date and time of scheduled presentations, either oral or as posters, will be published later on the website of the Symposium, along with the Program.

Please indicate your preference when submitting your abstract, but the organizing committee will decide the format depending on the bulk of papers to be presented during the symposium. We encourage students to present their papers as posters to have the opportunity to discuss their work with attendees in more detail.

Please follow carefully all instructions on the abstract submission in the guidelines provided below (see the example at the end)


Indicate the choice for mode of participation: poster or oral in the Google form. The Local Committee will decide format depending on the number of papers submitted for each of the session topics.

Choose the session topic that best describes the content of your abstract in the Google form.

Submit your abstract in English.

The document must be sent in Word with Times New Roman 12 font.

All margins in 2.5 cm. Use A4 page. Do not number the pages or use footnotes or personal brands.

The title should be short, concise, and indicative of the content of the abstract.

The title should be written in capital letters (except the scientific names), in bold font, with single line spacing.

Include author´s name as follows: Borges J.N. 1 using a superscript number for affiliation.

Underline the presenter’s name.

Include the author’s affiliation (s) with the superscript number. If more than one, separated by semicolon.

The abstract should be 250 words maximum, single line.

Justify the text to the left.

Scientific names must be written in full the first time used, and the genus name abbreviated upon repetition, except at the beginning of the sentence.

Do not include figures or tables



Borges J.N. 1; Borges J.N.1; Skov J.2; Bahlool Q.Z.M. 2; Moller O.S. 2; Kania P.W. 2; Santos C.P. 1; Buchmann K2.

1Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil;

2Department of Veterinary Disease Biology, Faculty Health and Medical Sciences, University of Copenhagen, Denmark.

The presence of parasites in fish products is a problem that concerns consumers and authorities due to the potential hazards it may cause. Few studies on the viability of parasites in marine fish products are concerned with trematodes. In this study the trematodes Cryptocotyle lingua were identified by morphometric and molecular techniques and isolated metacercariae from Atlantic cod (Gadus morhua) were incubated in cod muscle tissue at different temperatures ranging from -80 °C to 100 °C for subsequent test on their viability. SEM images were made to assess the physical damage caused to parasites exposed to different temperatures. Temperatures between 50°C and 100°C and between -80°C and – 20°C killed the metacercariae present in fish flesh in less than two hours. Controls kept at 5°C survived for nine days. Extreme freezing temperatures caused minimal visual physical damage to cysts, but the tegument of metacercariae was severely affected at all temperatures when incubated for long periods. The current legislation requires freezing of fish at a temperature not higher than -20 °C for at least 24 hours. Although this treatment is sufficient to inactivate C. lingua metacercariae, cod is not present in the list of fish species that should go through freezing before smoking process. Based on this investigation we recommend the industry to freeze cod before cold smoking procedures are performed.



The presentation standard for the Symposium will be through Microsoft PowerPoint®. Speakers must bring their presentation on a USB Flash Device and download their files to the PC that will be available. Presentations must be delivered at least 2 hr before the session. Speakers are encouraged to test their presentation to make sure the embedded images, movies, colors and fonts were not modified. Mac users should be certain that their presentation works well on a PC. Speakers are responsible for verifying their files are compatible with the computers at the venue. The standards oral presentation is 12 minutes plus 3 minutes for questions or comments from the audience, unless otherwise indicated.


Poster sessions will be at the end of the day, and no concurrent activities will be scheduled during the poster sessions. Posters represent an ideal opportunity to exchange ideas between the presenter and the audience interested in that particular topic.

Posters will be given a number and will be presented by topic. Poster measurements must be 120 cm long by 90 cm wide (due to the size of the standing boards), and the size of the letters should allow the text to be read from a 1 m distance. Posters must include the following: Title, name (s) and affiliation (s) of the author (s) at the top, and then the introduction, objectives, methods, results, and conclusions.


Holiday Inn Express Mérida is a place where the cultural essence of Yucatán comes to life.

It is strategically located in the heart of the city, allowing you to explore the charming streets of the Historic Center and enjoy the iconic Paseo de Montejo.

This hotel is located 45 meters from the central building of UADY.

Reservation process: Click here

Phone: +52 (999) 689 0194 Ext. 70005

$1,600 MXN plus taxes and services

  • American Buffet breakfast included
  • A minimum stay of 2 nights is required

$1,600 MXN plus taxes and services

  • American Buffet breakfast included
  • A minimum stay of 2 nights is required

$1,900 MXN plus taxes and services

  • American Buffet breakfast included
  • A minimum stay of 2 nights is required

$2,200 MXN plus taxes and services

  • American Buffet breakfast included
  • A minimum stay of 2 nights is required

With Gamma, enjoy an authentic experience at your destination. Discover the essence and magic of the city by staying in the heart of Mérida.

Here, you can live new and authentic experiences in Mexican spaces; places that foster an encounter with the culture of beloved destinations through their gastronomy, history, and traditions, because the greatest attractions are always close to each hotel.

This hotel is located 250 meters from the main building of UADY.

Reservation process

Event Code: G1RTQU

Reservation only calling the number 800 5045 000 and referring the reservation code.

$1,815.00 MXN plus services

  • Food and beverages not included.
  • Taxes included.
  • Buffet breakfast +$329.00 MXN per person.

$1,452.00 MXN plus services

  • Food and beverages not included.
  • Taxes included.
  • Buffet breakfast +$329.00 MXN per person.

$1,452.00 MXN plus services

  • Food and beverages not included.
  • Taxes included.
  • Buffet breakfast +$329.00 MXN per person.

$1,331.00 MXN plus services

  • Food and beverages not included.
  • Taxes included.
  • Buffet breakfast +$329.00 MXN per person.
Visiting Merida
Six resons why to visit Mérida (after Forbes, 2017 traveller ́s guide)
Central location
With nonstop international flights starting from Miami, Houston, Dallas and Atlanta starting, and 90-minute domestic flights from Mexico City (or a three-hour drive) from Quintana Roo’s famed five-star resort – Cancún, Merida’s proximity and cultural wealth make it an ideal destination to tack onto a beach vacation. Centrally located within the Yucatán Peninsula near the Gulf of Mexico, Merida serves as a convenient base for day trips to the region’s UNESCO-listed archaeological sites, nature reserves with diverse wildlife, and treasured villages designated ‘Pueblos Mágicos’ (magic towns) like Valladolid and Izamal.
Unique Heritage
Merida’s culture is a distinctive blend of traditions inherited from the ancient Maya civilization dating back to 2600 B.C. and customs brought by Spanish conquistadors, who began colonizing the territory in the 16th century. The city of Merida itself was founded by Francisco de Montejo y León in 1542 on top of an ancient Maya city called T’ho, whose stonework was repurposed by the Spaniards as foundations to erect lofty Catholic churches and colonial mansions. After 500 years of coexistence, a comingling of rituals and beliefs created a vibrant cultural identity that continues to shape this dynamic city (Forbes, 2017).
Archaeological Sites
Travelers from near and far come to experience the Yucatán’s well-preserved Maya archaeological sites. Seventy-five miles east of Merida lie Chichen Itzá, one of Mexico’s most impressive and visited ruins due to its designation as a new wonder of the world. The pre-Columbian city was one of the largest and most diverse and features a mix of architectural styles. It’s also popular for equinoxes, when the Castillo (castle) temple forms a shadow evoking the appearance of a serpent slithering down the pyramid's steps. Uxmal, another UNESCO-listed Maya ruin located an hour and fifteen minutes south of Merida, is celebrated for its precise construction and ornate stone carvings. The towering Pyramid of the Magician is in remarkably good condition, as are the surrounding structures, which can be enjoyed with much less crowds than Chichén Itzá.
If you want to try your hand in the kitchen, a number of local chefs offer cooking classes, or you can head to the city’s fine dining temples— Nectar, Apoala and K’u’uk—for innovative Mayan-meets-modern fare. There’s also Mercado 60, a food hall with 18 restaurants, and the newly- opened Casa Dominga, for a more laid-back gourmet adventure. Don’t leave the city without trying pre-Columbian specialties like cochinita pibil (pork marinated in achiote, turkey salbutes and traditional papadzules (similar to enchiladas).
Like most colonial cities, Merida features broad central plazas and beautiful cathedrals. Narrow streets are safe and squeaky clean with picturesque periwinkle, sherbet pink, mint green, and vibrant peach facades. The main zócalo is a spacious square trimmed with well-preserved 16th century mansions built for the family of founder Francisco de Montejo, as well as San Ildefonso Cathedral, one of the oldest churches in Latin America. Further north lies the leafy Plaza Santa Lucia, a neighborly hub where locals come to socialize and dance, and Pasejo Montejo, a wide tree-lined avenue inspired by the Champs-Élysées and dotted with palatial Beaux Arts homes. On Sundays, city plazas come to life with locals enjoying cultural events, folkloric dancing and tented markets.
Historic haciendas
As a reward for their services during the conquest, triumphant Spaniards were given estancias to breed livestock and in-demand crops like tobacco, sugar and cotton. From the late 1800s to the 1920s the Yucatán experienced a boom of prosperity as the leading producer of henequén (sisal) used to make ropes, amassing a level of wealth that transformed modest manors into extravagant haciendas outfitted with industrial machinery. The Luxury Collection operates five carefully-restored authentic haciendas throughout the Yucatán including Hacienda Temozon (located 45-minutes outside Merida), which was once the principal sisal producer in the peninsula. Today, the 17th century grand-dame features over 90 acres of landscaped gardens, plantation-style guest rooms with soaring ceilings, a postcard-worthy pool and a petite spa. Make sure to take a ride on a donkey-pulled trolley (formerly used for sisal transport) to visit the property’s cenote swimming hole.
Cenote swimming holes
When a deadly asteroid slammed into the sea floor off the coast of the Yucatán Peninsula 66 million years ago wiping out the dinosaurs, it also created more than 6,000 fresh water sinkholes and caves called cenotes. For centuries, the crystal-clear groundwater pools were used as sacred wells by the Maya where they performed offerings and spiritual rituals to communicate with the gods. Local shamans still perform these rituals today, and guests of Hacienda Temozon can experience a traditional Maya purification ritual in the underground Sacamucuy cenote. A beautiful offering of colorful flowers, medicinal plants, cocoa beans and candles are carried to the gods via fragrant copal (tree resin) incense, while the shaman performs a wellness ceremony to fill one’s soul with powerful positive energy.
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La Tratto Santa Lucía
A modern, Italian American inspired casual pizza-bar concept with cutting-edge architecture, renowned for its innovative pastas, gourmet pizzas, high-quality ingredients, carefully selected wines, and ambient music. Located at the main corner of the famous Santa Lucia Park, a significant attraction for international tourists, domestic visitors, and locals alike.
How to get there
Teya Santa Lucía
The warmth of Hacienda Teya Restaurant in the heart of Mérida city, Santa Lucía; a Yucatecan cuisine restaurant with a legacy of over 25 years. They have 2 magical outdoor terraces for you to enjoy a wonderful stay, surrounded by an atmosphere of trees and nature that gives us the characteristic ambiance of Hacienda Teya itself.
How to get there
Restaurante Picheta
Contemporary Yucatecan Gastronomy blended with chef-authored cuisine. They offer food with heart; an experience of experiences: vibrant, passionate, warm, exciting, and deeply Yucatecan. They are passion, the intersection of tradition with innovation, an experience that becomes an original explosion of colors and flavors; all of this, accompanied by an unparalleled view of the San Ildefonso Cathedral.
How to get there
Located in an old house in the Historic Center of Mérida, Yucatán, it offers a menu of fresh, authentic, and original Italian haute cuisine, handmade daily with ingredients imported from various regions of Italy, within a chic industrial ambiance. The bar is ideal for enjoying a signature cocktail with a view of the open kitchen.
How to get there
Inspired by the Japanese restaurants in the Ginza area, Yakuza is born as a space where authentic Japanese cuisine ingredients merge with gourmet components.
How to get there
"La Libertad" is the concept that blends a gastronomic proposal focused on the quality of each ingredient, combining Yucatecan dishes with traditional, fresh dishes prepared on the spot that will captivate you at first sight. They offer dishes ideal for sharing, complemented by a coffee and juice bar with flavors that will make you feel as free as at home.
How to get there
A house specializing in cuts where traditional techniques and processes are combined with the most sophisticated gadgets, all in an intimate atmosphere.
How to get there
Marmalade 47 is a restaurant located on Calle 47 between 56 and 54, in Downtown Mérida, Mexico. With a strategic location just 1.1 km from Paseo de Montejo. This restaurant offers a variety of culinary options, from French and American dishes to Mexican, Canadian, and coffee. It also prides itself on being able to cater to those with special diets, as it is suitable for vegetarians.
How to get there
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Derechos reservados 2024 – isfpxi@enesmerida.unam.mx

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