>> Fish and Emotions: Time to Rethink Aquatic Welfare
š” When we talk about animal welfare, we often focus on reducing negative states like pain and fear. But what about positive emotions? In the latest post from our "The Fish Mind" section on the ConsCIĆNCIA Animal blog, we explore a less discussed but essential topic: how fish experience not only suffering, but also positive affective states such as motivation responses.
š Scientific evidence continues to grow: fish can feel pain, fear, anxiety ā but also positive affective states. This changes how we think about their environments in captivity, care practices, and ethical treatment. Promoting positive welfare isnāt just a goal ā itās a responsibility grounded in science.
>>If you are interested, read our full post on the blog here.
(posted on June 30, 2025)
As aquaculture expands rapidly, so does the responsibility to ensure ethical practices ā especially at slaughter.
š¬ A recent report we co-authored, "Blueprint for research to detect loss of consciousness and/or sensibility of fish at slaughter", highlights critical gaps in current methods.
Key findings:
⢠Methods like asphyxiation and live chilling cause prolonged suffering
⢠Electrical stunning shows promise, but fish often recover too quickly and we still donāt have enough data to prove it works reliably in large-scale farms
⢠Percussive stunning and destroying the central nervous system may be more effective, but lack validation at commercial scales
⢠There's an urgent need for validated, scalable, and humane alternatives
Species like gilthead seabream and European seabass have shown how neurological indicators are important to assess stunning efficacy.
>> The future of aquaculture depends on science-backed, ethical solutions. It's time for cross-sector collaboration to set humane standards. You can access the full report here.
(posted on June 25, 2025)
> The Fish Mind is a programme of our podcast Fish Talk that is focused on the capacity of fishes to suffer, feel other affective states, and display great cognitive abilities. The idea is to present all this important information in an informal dialogue of a few minutes.
š” We have just released our second episode about positive affective states of fishes in this programme. Did you know that, just like humans, fishes can be motivated to get what they want? And this kind of behaviour has been observed in different species and in response to various environmental resources. This podcast episode focuses on this topic and brings relevant scientific evidence about fish motivation responses.
> If you would like to listen to this new episode, please go to our Spotify page here or to the podcast page on our website here.
(posted on June 23, 2025)
š” From June 10ā12, 2025, IMEDEAĀ (CSIC-UIB), in collaboration with FishEthoGroup Association (FEG) and Centre of Marine Sciences (CCMAR), hosted an intensive, hands-on course on ethological methods and animal behavioural data analysis in Esporles, Mallorca.
Over three days, participants:
āļø Studied the four levels of behavioural analysis (evolution, function, development, mechanisms)
āļø Practiced ethogram development and data collection techniques
āļø Applied their skills in a real-life setting at Palma Aquarium
This course combined theory and application, empowering attendees with tools for scientific research and animal behaviour studies. Thank you to everyone who made this course such a success!
(posted on June 16, 2025)
We believe that solid scientific knowledge is fundamental to practically improving the welfare of fish and other farmed aquatic animals. High-quality publications in this field are the cornerstone of achieving this goal.
Our team member Joao L. Saraiva co-authored a paper recently published in Scientific Reports journal. The authors used the Welfare Footprint Framework (WFF) - a tool providing cumulative time in affective states of varying intensities as a standardized welfare impact measure - to quantify the impact of air asphyxia during fish slaughter, using rainbow trout as a case study.Ā
š” The study shows that slaughtering fish by asphyxia can cause around 10 minutes of moderate to intense pain per trout. Electrical stunning could prevent up to 1,200 minutes of serious fish pain for every dollar investedābut results vary in practice. Percussive stunning works well, but it's still hard to put into action on a large scale.Ā
> If you are interested, access this new published paper here.
(posted on June 9, 2025)
Ā The 22nd Congress of the Portuguese Ethological Society (SPE)Ā is taking place on October 30ā31, 2025, at the University of Algarve (Penha Campus), Faro, Portugal.
š Registration is now open here.
š” We invite students, researchers, and professionals working in animal behaviour and welfare to submit abstracts for oral and poster presentations. Submit here.
ā ļø Note: Presenting authors must be registered participants.
Organized by Sociedade Portuguesa de Etologia, Centre of Marine Sciences (CCMAR), and FishEthoGroup, the congress will cover a wide range of topics ā from aquatic to terrestrial species, and from behaviour to welfare.
>> This is a unique opportunity to present your work, exchange ideas, and expand your network in a beautiful setting in southern Portugal. We hope to see you there!
(posted on June 5, 2025)
> Ethology Course ā Registration Open | June 10ā12, 2025 | Mallorca, Spain
The FishEthoGroup, IMEDEA (CSIC/UIB), and CCMAR are offering a 3-day intensive course on animal behaviour for students in biology-related fields. The course combines theoretical and practical approaches, including hands-on fieldwork at Palma Aquarium.
š Location: IMEDEA ā Esporles, Mallorca
Ā š
Dates: June 10ā12, 2025
Ā š Open to Bachelorās, Masterās, and PhD students in biology-related fields
New: Get 50% off the registration fee by enrolling before June 1st.
Key features:
> Expert instructors: Dr. Joao L. Saraiva, Dr. MarĆa J. Cabrera-Ćlvarez, Dr. Pablo Arechavala-Lopez
> Fee: ā¬200 (includes lectures and field activities)
> 5 grants for IMEDEA students
Only 20 participants will be accepted (first come, first served)
š§ To register, email: mail@fishethogroup.net, including your full name, academic background, current role, institution, country, and whether you qualify for a grant.
> This is a great opportunity to develop applied skills in behavioural science!
(posted on May 28, 2025)
The Atlantic mackerel (Scomber scombrus) is a migratory species found in the temperate waters of the North Atlantic and parts of the Mediterranean Seas.
š” It is one of the most important commercial fish species in the region - about 865,000 tonnes of this mackerel is caught annually, meaning nearly 2 billion individual fishes! It is mainly caught by purse seine fishing.
>> Would you like to know the main fish welfare concerns related to the capture of this mackerel by purse seining? Please, take a look at our new post about that at the blog ConsCIĆNCIA Animal here.
>> You may also access its WelfareCheck profile in the fair-fish database here.
(posted on May 26, 2025)
Fair-fish database programme features short audio episodes from our Fish Talk podcast. These audios focus on species with profiles already published in the database of fair-fish. We aim to provide insights into natural needs, behaviours and farming conditions or welfare hazards in fisheries for fishes and other aquatic animals, all in just a few minutes.
š” Yesterday, we launched our new episode focused on a fished species. It's about Atlantic mackerel (Scomber scombrus) caught using set net fishingāa profile now available in the fair-fish database's catch branch. Don't miss the chance to check it out!
> If you are interested, please go to our podcast page and listen to this new episode of the fair-fish database programme here.
(posted on May 20, 2025)
>> Ethology Course ā Registration Open
š
June 10ā12, 2025 | Esporles, Mallorca ā Spain
>> This course begins in under a month. Register soon to guarantee your place!
š Hosted at IMEDEA - Institut Mediterrani d'estudis AvanƧats (CSIC/UIB), in collaboration with FishEthoGroup andĀ Centre of Marine Sciences (CCMAR)
This 3-day intensive course offers a practical, research-based approach to the study of animal behaviour. Participants will explore the four levels of behavioural analysis (evolution, function, development, mechanisms), construct ethograms, apply research tools, and conduct observational fieldwork at the Palma Aquarium.
š©āš« Instructors: Dr. Joao L. Saraiva, Dr. MarĆa J. Cabrera-Ćlvarez, Dr. Pablo Arechavala-Lopez
š Designed for undergraduate, MSc, and PhD students in life sciences
š¶ Fee: ā¬200 (includes lectures and fieldwork)
š 5 grants available for IMEDEA students
š„ Limited to 20 participants ā early registration is recommended
š§ To register, email mail@fishethogroup.net with your:
- Full name
- Academic background
- Current position
- Institution
- Country
- Grant eligibility (if IMEDEA student)
(posted on May 19, 2025)
Our team member Caroline M.Ā Maia co-authored a review paper recently published in Fishes Journal. This study highlights the most pressing welfare concerns and challenges in the ornamental fish trade and discusses potential strategies to mitigate its negative impacts on fish welfare.Ā
š”The authors explore key topics like legislation, gaps in proper information, the welfare of fish in their final destinations and initiatives aiming to improve fish welfare in this trade. They also promote a shift in terminology from 'ornamental fish' to 'pet fish'. It is a small change that reflects a bigger movement toward recognizing these animals as sentient beings.
> If you would like to access this new review paper, click here.
(posted on May 16, 2025)
> New paper published!
We believe that solid scientific knowledge is fundamental to practically improving the welfare of fish and other farmed aquatic animals. High-quality publications in this field are the cornerstone of achieving this goal.
š” In this context, our team member Caroline MĀ Maia co-authored a paper recently published in Journal of Applied Animal Welfare Science. This study examines the preference responses of Nile tilapia for artificial water hyacinth as a structural enrichment, under different stocking densities.
> The authors showed that Nile tilapia expressed a strong preference for this easy-to-build and inexpensive enrichment āespecially when kept in crowded tanks. This finding highlights that such artificial structure may be a useful option to improve this fish welfare in farms.
> If you are interested, access this new published paper here.
(posted on May 5, 2025)
The crucian carp (Carassius carassius) is a freshwater fish found in lakes, ponds, rivers, and reservoirs across Europe and Asia. Originally farmed in China and Japan, itās now raised in many countries, often in ponds, pens, or rice fields. Providing plants and soft substrates could help improve its welfare in farms.Ā
>> If you would like to know more about Crucian carp, please take a look at our new post about this species at blog ConsCIĆNCIA Animal blog here.
>> If you are interested, you can also access its overview page and its WelfareCheck profile in the fair-fish database here and here.
(posted on April 29, 2025)
The Fair-Fish Database Programme is a series of bite-sized audio episodes from our Fish Talk podcast. Each episode focuses on a species with a profile already published in the fair-fish database.Ā
š” The idea behind this programme is to share quick insights into the natural needs, behaviours, and farming conditions of fish and other farmed aquatic animals āall in under 3 minutes.
Last week, we dropped new episodes. This time, they're about Nile tilapia (Oreochromis niloticus), Blue tilapia (Oreochromis aureus), and Hybrid tilapia (Oreochromis niloticus Ć O. aureus).
> If you are interested, don't miss the chance to check them out!
> You can go to our podcast pageĀ and listen to the new episodes (series 19) here.
(posted on April 24, 2025)
MEASURING BEHAVIOUR: Defining, quantifying, and analysing behavioural data
A 3-day training for undergrad, MSc, and PhD students interested in animal behaviour. Includes lectures, ethogram design, behavioural data collection, and a practical session at Palma Aquarium.
š Location: IMEDEA -Ā Mediterranean Institute of Advanced Studies,Ā Esporles ā Mallorca, Spain
Ā š
Dates: June 10thā12th, 2025
Ā š¶ Fee: ā¬200 | Limited to 20 participants
Ā š§āš« Lecturers: Dr. Joao L. Saraiva, Dr. MarĆa J. Cabrera-Ćlvarez, Dr. Pablo Arechavala-Lopez
> Organised by IMEDEA-CSIC/UIB with FishEthoGroup and Centre of Marine Sciences (CCMAR).
Ā
>> To apply: mail@fishethogroup.net
(posted on April 21, 2025)