Presenting at the 14th edition of the ICBF 2022 in Montpellier (28/6-1/7), the results of the experiment led by my PhD colleague, Niklas Warwas, on the valorization of aquaculture and fisheries side-streams in order to find new sustainable alternatives to fish meal oils in aquaculture feed. The FEL group was well represented with presentations from my colleagues Niklas Warwas and James Hinchcliffe, and a poster from Ida Héden. The first international conference in over two years, it was nice to see old colleagues and friends from the fish world.
New article accepted for publication in Evolutionary applications: ‘Invader at the edge – genomic origins and physiological differences of round gobies across a steep urban salinity gradient’.
This work is a collaborative project with my colleagues from the University of Gothenburg, led by Dr leon Green. In this study, we investigated the physiological capacity of the invasive round goby (Neogobius melanostomus) to acclimatize to environments with different salinities. For this purpose, we used 12 937 SNPs to identify the genetic origin and diversity of three sites along the salinity gradient and round goby from western, central and northern Baltic Sea, as well as north European rivers. Fish from two sites from the extreme ends of the gradient were further acclimated to freshwater and seawater, and tested for respiratory and osmoregulatory physiology. Our results show genotypic and phenotypic differences over short spatial scales across this steep salinity gradient. These patterns of the physiologically robust round goby are likely driven by multiple introductions into the high salinity site, and a process of sorting, likely based on behaviour or selection, along the gradient. The article is in press and can be found here.
New project grants: I am very grateful to the Helge Axelsson foundation (30,000 SEK) who renewed its trust in me, and the J. Gust. The Richert foundation & SWECO (100,000 SEK) for awarding me two new grants to continue my research on alternative feed ingredients for aquaculture to be used in a feeding trial planned in the fall, stay tuned!)
Launch of a new journal: Frontiers in aquaculture, where I have been invited to be a review editor for the section Production biology. Don’t hesitate to submit your abstract to this section before August 31th.
New article accepted for publication in Biology: ‘Low Holding Densities Increase Stress Response and Aggression in Zebrafish’.
This work is a collaborative project with my colleagues from the University of Gothenburg. In this study, we investigated the optimal housing densities of zebrafish in laboratory conditions, in order to better understand how holding density affects zebrafish behaviour and physiology. For this purpose, we evaluated the welfare of zebrafish housed at different densities (1 to 16 fish/L of water), over a period of 9 weeks. We observed that fish housed at the lowest density (1 fish/L) showed higher levels of aggression, spent more time in the top zone of the tank, and secreted more of the stress hormone cortisol in the water. Our data indicate that zebrafish should not be kept at densities of 1 fish/L, or lower, to ensure good welfare of the animals. We believe that these findings are important and will help to refine housing protocols for zebrafish.
This study was the master project of Mica, under the supervision of Petronella Kettunen. Since then, Mica has joined our group as a new PhD from the Blue food project (https://www.bluefood.se/), and we are now collaborating on new projects aiming at developing inland IMTA systems. Stay tuned for updates on our project. In the meanwhile, you can find our article here.
Presenting our work on RAS and our latest results from the MARTINIS project at the Swedish national aquaculture conference in Strömstad (15-16 March; Nationella vattenbrukskonferensen). Congratulations to my friends and colleagues who represented SWEMARC and presented their work promoting the sustainable development if the aquaculture sector in Sweden. First conference in two years, it was very nice to see live presentations again and discuss with potential collaborators.
Happy new year! I am very pleased and proud to welcome a new member in our family. It also means that I will be away from the office for a little while. See you soon!
New project grant:
– I am very grateful to VINNOVA for funding Strategic innovation program for process industrial IT and automation – PiiA for funding our project AIMING to identify how state of the art research results can be further developed to enable a more ecologically and economically sustainable production of fish and seafood in land-based facilities (600,000 SEKl). This project is a collaboration between our industrial partners (Smögenlax, Gårdfisk), the University of Gothenburg, Innovatum and the Swedish Environmental Research Institute (IVL), coordinated by my colleague and main applicant Torbjörn Johansson (IVL).
New PhD project:
– I am very happy to introduce Mishaal Akbar, our new PhD student at the Department of Biological and Environmental Sciences who will be investigating the mechanisms of motivational states in zebrafish in her 4-years PhD project, under the supervision of Dr Lynne Sneddon (main supervisor), alongside Marco Vindas (NMBU, Norway) and myself as co-supervisors. A very warm welcome to Mishaal, and looking forward working with you for the next coming years!
MIRAI2.0 TEG Sustainability Workshop (28-30 September):
I am very proud and honored to present our international collaboration and the MARTINIS project at the Special Session “Lessons learned about international research collaboration between Swedish and Japanese universities from MIRAI (2017-2019) ” of the MIRAI 2.0 Sustainability workshop. I hope that we can help forming new collaborations between Sweden and Japan by sharing our experiences.
I am very happy to announce the publication of our first research article from our MARTINIS project: ‘Effects of Recirculating Aquaculture System Wastewater on Anammox Performance and Community Structure’, where we exposed the marine anammox species Candidatus Scalindua to the wastewater of a Swedish farm under different conditions. This is the first stepping stone of our collaborative project and led us to two new research questions currently under investigation, stay tuned!
This article is part of the Special issue from Processes, ‘Anammox-Based Processes for Wastewater Treatment’. I would like to thank all of our collaborators, sponsors, and the editors & reviewers from this special issue.
The online version is available here.
I am very proud and honored to represent the University of Gothenburg and SWEMARC for the first major MIRAI 2.0 event hosted at the University of Gotheburg, the Research & Innovation week. I had the opportunity to present the MARTINIS project and our advances on the 9th of June through zoom. I am looking forward for our next gathering, hopefully on site!
Publication of the article ‘Continuous physiological welfare evaluation of European whitefish (Coregonus lavaretus) during common aquaculture practices leading up to slaughter’, in Aquaculture 534. In this study, we used a combination of implantable heart rate bio-loggers and a range of traditional stress indicators to evaluate the physiological responses of freely swimming European whitefish in captivity. This study is part of the PhD thesis of my colleague from the FRESH project, Per Hjelmstedt. The online version is available here.
Happy new year!
It is the time of the year to look at the scientific production for 2020:
The work of 2020 resulted in five articles accepted for publications, and the first article of the MARTINIS project under review.
Stay tuned for more articles on our work on with SWEMARC and more news to come with my new position within as a researcher under my new FORMAS grant.
Two new articles accepted for publication:
– ‘Invasion and distribution of the redclaw crayfish, Cherax quadricarinatus, in Martinique.’, to be published in the Topical issue on Crayfish form KMAE. In this study, we investigated the state of the spread of this invasive species in the French island. This study is part of the PhD thesis of my former colleague, Thomas Baudry, ‘Impact de Cherax quadricarinatus sur les écosystèmes de Martinique‘.
– ‘Continuous physiological welfare evaluation of European whitefish (Coregonus lavaretus) during common aquaculture practices leading up to slaughter’, to be published in Aquaculture in 2021. This study is part of the PhD thesis of my colleague from the FRESH project, Per Hjelmstedt. The online version is available here.
New project grant:
– I am very grateful to the Royal Swedish Agricultural Academy and the Stiftelsen Carl-Gustaf och Viveka Åkerhielms minnesfond for their generous contribution to the MARTINIS project (40,000 SEK).
New project grants:
I am very grateful to FORMAS for granting me a 4-years ‘early career researcher grant for my collaborative project ‘MARTINIS’. In the comming years, we will continue to investigate alternative bioremediating sources in RAS.
New project grants:
– I am very grateful to the Royal Society of Arts and Sciences in Gothenburg (KVVS), through the Adlerbertska foundation and the Stiftelsen Birgit och Birger Wåhlströms Minnesfond for their contribution to the MARTINIS project (80,000 SEK in total).
– Congratulations to my collaborator, Prof. Tomonori Kindaichi, who recently obtained co-funding through JSPS for our MARTINIS project. Prof. Kindaichi obtained 14,500,000 JPY (1,230,000 SEK) for the period 2021-2024 to cover the mobility and activities from our Japanese partner, in addition to the 400,000 SEK granted by STINT for the Swedish partners earlier in the spring for the period 2021-2023.
New article accepted for publication in Applied Soil Ecology: Stress response in terrestrial isopods: a comparative study on glycaemia. This is the result of my previous work conducted at the University of Poitiers, where I investigated the impact of potential stressors on the glycemia. Online version available here.
New article accepted for publication in Aquaculture research: Effects of different feeding regimes on juvenile black rockfish (Sebastes schlegilii) survival, growth, digestive enzyme activity, body composition, and feeding costs. This is the result of a collaboration with my friend and colleague Dr. Guo from Zhejiang Ocean University in China, where we aimed at defining the best feeding regime for juvenile blackrockfish intended for restocking. Online version availabe here.
New grants obtained from the Wilhelm och Martina Lundgrens stiftelser foundation (57,000 SEK) and the Helge Axelsson foundation (70,000 SEK) for the MARTINIS project. My colleagues and myself are very grateful for your trust in our project and your generous contribution.
New article accepted for publication in Aquaculture (currently in production): Prevalence and severity of cardiac abnormalities and arteriosclerosis in farmed rainbow trout (Oncorhynchus mykiss). This is the result of our collaboration within the FRESH project led by my friend and colleague Dr. Brijs, where we assessed and compared the health and welfare status of rainbow trouts farmed in different facilities in Sweden and Finland. Click here for the full text.
Presenting our work on RAS and the MARTINIS project pilot results at the Swedish national aquaculture conference in Åhus (10-11 March; Nationella vattenbrukskonferensen). Congratulations to my friends and colleagues, James Hinchcliffe, who presented our work using mussel by-products to replace fishmeal in wolffish diet, and Niklas Warwas who presented our work about marine yeast and sustainable aquaculture in a perfect Swedish and got interviewed by P4 Kristianstad.
Study visit at Hiroshima University (25/01-01/02) together with Federico Micolucci (Lund University), we visited the laboratory of our collaborator from the MIRAI consortium, prof. Tomonori Kindaichi at Hiroshima University in order to continue our experiment of characterization of the impact of wastewater from a fish farm on microbial community structure and in situ activity of Anammox granules. In the program of this visit, working on the experimental reactor, FISH (fluorescence in-situ hybridization) and preparing the next step of our research project MARTINIS.
– Study visit in Hiroshima (23/11-03/12) together with my colleague Federico Micolucci from Lund University to the laboratory of our collaborator from the MIRAI consortium, prof. Tomonori Kindaichi in at Hiroshima University in order to initiate our first experiment of characterization of the impact of wastewater from a fish farm on microbial community structure and in situ activity of anammox granules. The experiment is expected to be finalized by the end of Spring 2020.
– Representing SWEMARC and the MARTINIS project during the closing seminar of the MIRAI project in Stockholm and Uppsala (11-14/11). I had the opportunity once again to present my work and discuss potential future collaboration with other Swedish and Japanese universities. In addition, I gave a joint presentation with my collaborators from the MARTINIS project where we showed our colleagues the first results and the perspective of our collaborative project .
– Study visits in Iceland with the students from the Nordic master program MARBIO. Together with the students from our master program, we have been visiting our partners universities in Hólar and Akureyri as well as fish farms, trawlers and marine products processing factories.
– Start of the cultivation of Marine Anammox in Sweden and study visit of prof. Kindaichi. Thanks to our STINT initiation grant and our project grant obtained from the Helge Axelsson foundation (80,000 SEK), we were able to successfully start the culture of Anammox in both Gothenburg and Lund. Since then, we are carefully monitoring the growth of our bacteria colonies in prevision of our future experimental trials. More to come soon!
– STINT initiation grant and study-visit at Hiroshima University. Our collaborative project got recently granted a 150,000 SEK initiation grant from STINT, the Swedish Foundation for International Cooperation in Research and Education. With this grant, we have planned 2 studies visit to Hiroshima University (June and November), and two studies visit to Gothenburg (August and November). Activities include learning to work and cultivate marine Anammox bacteria and build both culture and marine recirculating systems with Anammox bacteria in Sweden and seminars to present our project.
– During our first visit to Hiroshima, we have learned how to cultivate and work with marine Anammox and given a seminar in front on 20 persons.
– MIRAI sustainability workshop (28-29 March) and study visit at Hiroshima University (01 April). Once again I proudly represented SWEMARC at this new MIRAI gathering at TokyoTech where I presented the latest advances of our collaborative project MARTINIS (‘Mariculture technical innovations in Sweden’, that was recently awarded 150,000 SEK from STINT, the Swedish Foundation for international cooperation in research and higher education to start our collaborative project. This money will allow researchers from SWEMARC, Lund and Hiroshima to travel, plan experiments and workshops. I also had the privilege to co-chair the group ‘solution for water resources’.
– I then continued my Japanese trip with Dr Federico Micolucci to Hiroshima University, where we had a one day workshop at the laboratory of professor Tomonri Kindaichi where we planned the next steps of our collaboration. Stay tuned for more news!
– New article accepted for publication in Aquaculture (to be published in the May issue): Fish welfare, fast muscle cellularity, fatty acid and body-composition of juvenile spotted wolffish (Anarhichas minor) fed a combination of plant proteins and microalgae (Nannochloropsis oceanica). This is the result of our collaboration with Nord University in Bodo and part of the PhD thesis of Helene Knutsen, that successfully defended her work on the 27th of March.Proudly representing SWEMARC at the ‘Danskt selskab för marinbiologi’ (annual meeting of the Danish society of marine biology and presenting ‘Aquaculture in closed containment systems- health and welfare of farmed fish’ on the 12th of March.
Happy new year!
It is the time of the year to look at the scientific production for 2018:
The work of 2018 resulted in two articles published and several presentations in Sweden, China and Japan.
Stay tuned for our articles on our work on wolffish and more news to come with my new position within SWEMARC, the Swedish mariculture research center, as a researcher for two more years.
– NOMACULTURE RAS and wolffish workshop. On the 15th of September, we co-held at the University of Gothenburg and at Chalmers our workshop were we presented our latest results on RAS research and wolffish to stakeholders, together with the RAS simulation program developed by our colleagues at Chalmers: LiBRAS.
– As part of the celebration of the 150th anniversary of Diplomatic relationships between Sweden and Japan, an alumni reception was held at the Swedish embassy on the 9th of October. For this occasion, I was representing the University of Gothenburg as part of a researcher panel invited to present my research in the context of the SDG’s in front of almost 150 alumni, before heading to the Ambassador’s reception, his Excellency Magnus Robach for the MIRAI’s participants.
– On the 11-12th of October, I took part in the water resources sub-topic of the MIRAI sustainability scientific session held at Sophia University. I represented SWEMARC and presented SWEMARC vision and objectives through an oral presentation and a poster. I also presented together with Dr. Federico Micolucci (Lund University) and Professor Tomonori Kindaich (Hiroshima University) our collaborative research plan: the MARTINI project (Mariculture technical innovations in Sweden). In this project, we aim to introduce a combination of membranes coupled with marine Anammox reactor in the marine recirculating aquaculture system at the University of Gothenburg in order to improve organic waste removal in our system.
– Prior to the MIRAI sessions, Dr Micolucci and myself visite the laboratory of professor Kindaichi in Hiroshima and discussed logistic and strategic funding plan for our project.
– First edition of my first biology textbook published: Biologie, collection Fluoresciences Dunod editor (France): first year biology textbook, in French. 540 pages, congratulations to my co-authors and thanks to Dunod edition for their trust and patience. More informations here: https://www.dunod.com/livres-jonathan-roques.
– Elsevier 3rd Aquaculture conference, Qingdao, China (25-28/09). Presenting our data from our experiment on the impact of acute and chronic warming waters on physiology, metabolism and growth performance of the Atlantic wolffish. This year, the conference opted for a very innovative format: lightening talks of 5 minutes and poster presentations. This really encouraged people to visit posters and greatly stimulated discussions. We have presented and marketed our wolffish SWEMARC and had a lot of fruitful discussions and possibly following future collaborations in the future.
– Study visits of Chinese farms. Following the Aquaculture conference, with my fellow SWEMARC colleagues we have on a tour in the Sanggou bay and Dalian to visit aquaculture equipment manufacturer, open cages and closed system aquaculture farms, including IMTA companies. We ended up on local fish markets where we could see local farmed species.
– New article published in Zoolical studies: ‘ Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs’. From my work did at the CUFR de Mayotte on mangrove crabs. Click here for the full text.
– Attending the WAS/EAS conference AQUA 2018, #We R Aquaculture in my hometown of Montpellier. Learning more about current status of aquaculture and prospecting for novel material to add to our recirculation systems. I also won a free registration for next year’s EAS conference in Berlin.
– Attending the first international seaweed conference in Tjärno (Sweden). Learning more about current status of seaweeds farming, seaweed biology and possibilities to incorporate them in our future IMTA.
– New manuscript accepted! The work realized at the University in Mayotte on mangrove crabs ecotoxicology during my time there as a researcher and completed by Dimitri Theuerkauff during his PhD thesis was accepted for publication in Zoological Studies. Stay tuned for the PDF version of the manuscript.
– Co-representing SWEMARC at the MIRAI workshop on sustainability ‘from source to sink’ (7-8 June). The objective of the MIRAI network is to connecting Swedish and Japanese universities through research, education and innovation. Promising contact have been made with potential future collaborators in Japan and Sweden, especially concerning the use of membranes and novel marine bacteria in RAS. I will be attending the follow-up seminar and workshop hosted by Sophia University in Tokyo this October.
This workshop was followed by a very nice diner onboard of the Ostindiefararen Götheborg where we met with our vice-chancelor during diner celebrating the 150 years of diplomatic relations between Sweden and Japan.
– End of our experiment on the impact of temperature on temperature tolerance of Atlantic wolffish (Anarhichas lupus). Results under analysis, stay tuned!
– End of the Bachelor project of my student Felicia on the impact of acute exposure to warm water on the stress response of Atlantic wolffish. Congratulations for your hardwork and for a very nice presentation!
– Reviewing articles for Aquaculture and Aquaculture Research, and finalizing my chapters for the textbook written for the FLUORESCIENCE series of the DUNOD editors, due this August.
– Participating at the ‘Forskarfika’, co-organized by the University of Gothenburg during the Science festival (saturday 21); meeting and presenting my project over a ‘fika’ to the general public curious to known about wolffish research. https://www.facebook.com/events/208164403274084/
– AquaAgri annual meeting. Last year meeting with the protagonists of the five projects of AquaAgri and the funding agencies. This year it was organized by the NOMACULTURE research group, where we hosted the meeting at Gothenburg University and Kristinaberg research stations (April 17 and 18). Presentation of the last results and discussions on future collaborations and projects with the different partners and tour of the wolffish and lobster facilities.
Launch of the experiment on temperature tolerance of Atlantic wolffish, where we will be following the impact on metabolism (respiration), growth, physiology and welfare of juvenile wolffish exposed to two temperatures.
SWEMARC 2nd General assembly in Kristinaberg
Meeting our collaborators and presenting my work on the research areas 3 (Mariculture systems) and 4 (Aquafeed development) and discussing further collaborations.
Happy new year!
It is the time of the year to look at the scientific production:
The work of 2017 resulted in one article published and one poster presentation.
Source: google scholar and webofknowledge
Continuing the experiment on nutritional requirement of Atlantic wolffish with my colleagues, grading the fish and designing new follow-up experiment.
Launch of the experiment on nutritional requirement of Atlantic wolffish (Anarhichas lupus) at Gothenburg university.
Visit of the campus of the University of Jyväskylä (Finland), co-representing Sweden for the RAS and education meeting (28-29 November) in order to discuss the current situation of aquaculture education in Nordic countries and future actions/collaborations. Visit of several fish farms in the vicinity.
Conference in Strasbourg: CEPA3; colloque d’Ecophysiologie Animale: presenting a poster from my work in Poitiers on the stress response in terrestrial isopods. (6-8 November).
Lecturing in Poitiers. Back at the University of Poitiers for a seminar in front on the students from the International Master in Applied Ecology (IMAE) 2017-19.
New article published in Aquatic Invasions: ‘Status of Pacifastacus leniusculus and its role in recent crayfish plague outbreaks in France: improving distribution and crayfish plague infection patterns. Work did together with my former colleagues at the University of Poitiers Prof.Frédéric Grandjean. Click here for the full text.
Maintenance of the sea-water system and follow-up of the growth and well-being of the wolffish with our wolffish and preparation of experiments during the fall.
Helping out as member of the local helpers team for the SEB annual meeting in Gothenburg.
– Reception of 1200 juvenile wolffish from Iceland and setting-up the tanks to welcome them in Gotheburg and Kristinaberg.
– Sampling of salmonid kelts for the project ‘Atlantic salmon kelt physiology: endocrine regulation of growth, metabolism and appetite’ (more information here) in Umeå.
Collaborations with NORD University in Norway, working on improving the diet or wolffish with micro-algae supplementation.
Happy new year!
Planning the experimental procedure and starting to prepare the RAS to welcome the wolffish and start the experiments hopefully in the spring.
It is the time of the year to look at the scientific production:
The work of 2016 resulted in two articles submitted in January 2017 to make a good start for this year.
Visit in Norway of the NORD University and the spotted wolfish farm Aminor. A very nice and fruitful meeting with Norwegian, Icelandic and Canadian partners and the start of the WOLFNET network and future collaborations.
Starting my new postdoctoral position at department of biological and environmental life sciences at the University of Gothenburg, in Sweden. I will be working here for two years within the project NOMACULTURE, aiming to find the optimal culture conditions for the promising wolffish species for the Swedish aquaculture industry, Anarhichas minor and Anarhichas lupus.
More information’s about this project here
Last month at Poitiers University. Last set of experiments on terrestrial isopods stress physiology with chronic exposure to the herbicide Roundup
– Welcoming the students for their internship an beginning of the experiments on stress in terrestrial isopods
– Reviewer for the journal International Journal of Aquaculture
End of the classes period. Good luck to all my students for the exams!
– Reviewer for NOAA/NMFS Saltonstall-Kennedy Research Grant Program, NOAA, Department of Commerce, USA
– Reviewer for the scientific journal Aquaculture research
New article published in Aquaculture Research: ‘Ambient salinity and osmoregulation, energy metabolism and growth in juvenile yellowtail kingfish (Seriola lalandi Valenciennes 1833) in a recirculating aquaculture system‘. Work did together with Ainhoa Blanco Garcia and my former colleagues at IMARES.Click here for the full text
Start of the academic year at the University of Poitiers, research team Ecology, Evolution, Symbiosis. Preparing and giving lectures in biodiversity, statistics and evolutionary strategies. Setting up of my new research project: the stress response in A. vulgare
Presenting at the Aquaculture conference (AQUA 2015)
- The impact of elevated water nitrogenous wastes concentration on physiology, growth and feed intake of African catfish (Clarias gariepinus) and pikeperch (Sander Lucioperca) (Lecture AQUA2015)
- Aspects of fish welfare in aquaculture practices (Poster_AQUA2015)
– Visit of the University of Poitiers where I will be working from september as lecturer and perform research on the stress response in terrestrial isopods
– Invited speaker for a seminar at the University of Liverpool by Dr. Lynne Sneddon
– Two abstracts accepted for the Aquaculture conference in Montpellier (August 23-26/2015): one oral presentation and one poster
– New article published in Aquaculture Research: The impact of elevated water nitrite concentration on physiology, growth and feed intake of African catfish, Clarias gariepinus. Click here for the full text
New article published in Aquaculture Research: ‘Recovery from transportation by road of farmed European eel (Anguilla anguilla)’. A collaboration with my former colleagues at RU NIjmegen, Dr. Jeroen Boerrigter and Dr. Remy Manuel. Click here for the full text
– Two abstracts submitted for the Aquaculture Conference 2015, held in my hometown of Montpellier this summer (23-26 august)
Reviewer for NOAA/NMFS Saltonstall-Kennedy Research Grant Program (National Oceanic and Atmospheric Administration). NOAA, Department of Commerce, USA