Mathieu Colleter – Post-Doc

MathieuThesis: The impact of fisheries on the trophic functioning of marine ecosystems: comparative approach and global-scale mapping

I was born in Burgundy, France and grew up in Lyon, neither of which are really sea-related places. However, many of my childhood holidays were spent near the water at my grandparents’ home in Paimpol, on the North coast of Brittany. Fishing crabs at low tide, playing on shingle beaches, and walking along the coast were great occupations for young city boy! I was stunned as an adolescent to realize the decline of crabs and abalones available, compared to harvests I recall as a child with my grandmother. I also discovered scuba diving at age 13, and started diving with my family all around the world. This set me on the track to follow the passions of my youth, and study marine ecology and fishery sciences.

After my ‘baccalaureat’ (which marked the end of high-school), I studied for entrance into the French Grandes Ecoles during two years in ‘Classes préparatoires’. I entered Agrocampus Ouest (Rennes, France) and completed an agronomy engineer diploma specializing in fishery sciences and aquaculture in 2010. During my degree, I also did an internship at the Macquarie University (Sydney, Australia) under the supervision of Dr. Culum Brown to study the behavior of the rainbowfish. We examined behavioural traits and their link with the establishment of the hierarchy in male rainbowfishes. I completed my MSc thesis working with Drs. Didier Gascuel (Agrocampus Ouest) and Luis Tito De Morais (IRD). My research assessed the potential effects of a marine protected area (MPA), the Bolong de Bamboung, in the Sine Saloum estuary (Senegal). We used ecosystem modelling approaches (Ecopath and EcoTroph) to investigate the impact of the MPA enforcement between 2003 (last fished year) and 2006-2008 (three years after the closure of the fishery).

As a PhD Candidate, I am working with Dr. Daniel Pauly at the UBC Fisheries Centre, and with Dr. Didier Gascuel at Agrocampus Ouest thanks to a joint PhD agreement. My proposed research has been developed to address concerns about the potential impacts of fisheries on underlying trophic functioning at a global scale. The aim of this study is to better understand the trophic functioning and its variability throughout ecosystems. We propose to use two well-known trophodynamic models: Ecopath with Ecosim (EwE) and EcoTroph (ET). New insights into trophic functioning could be obtained from a large meta-analysis of the hundreds of EwE models developed since the end of the 1980s. Additionally, EcoTroph is a recently developed model incorporated as a plug-in of EwE that enables the comparative analysis of Ecopath models through a uniform framework, the trophic spectrum. Using these two tools, we propose to conduct a meta-analysis of the marine ecosystems trophic functioning and the related impacts of fisheries at a global scale. We will then develop a dynamic mapping of the fishing impact on ocean biomass and its trophic distribution.

Selected Publications

Colléter, M., Brown, C., 2011. Personality traits predict hierarchy rank in male rainbowfish social groups. Animal Behaviour 81, 1231–1237.

Colléter, M., Gascuel, D., Ecoutin, J.-M., Tito de Morais, L., 2012. Modelling trophic flows in ecosystems to assess the efficiency of marine protected area (MPA), a case study on the coast of Sénégal. Ecological Modelling 232, 1–13.

Colléter, M., Guitton, J., Gascuel, D., 2012. An EcoTroph modelling package for R [WWW Document]. EcoTroph Website, http://sirs.agrocampus-ouest.fr/EcoTroph/.

Colléter, M., Guitton, J., Gascuel, D., Accepted. An Introduction to the EcoTroph R Package: Analyzing Aquatic Ecosystem Trophic Network. R Journal.

Ambassador to West Africa

DSC03963by Dyhia Belhabib

“Our driftnets don’t produce discards.”
“We don’t have illegal fishing – it’s illegal.”
“Your methods are correct, but your results don’t make sense.”
“Don’t tell them we fish in their waters, they will deny us access.”

These were some of the amazing comments I heard during my short visit to seven West African countries earlier this year as part of the “Sea Around Us Project and PRCM: Marine Conservation Research, Collaboration and Support in West Africa.” (PRCM is the Regional Marine and Coastal Conservation Programme for West Africa). During my trip, I met with fisheries experts, researchers, decision-makers, NGOs and industry representatives to ground-truth the catch reconstruction results for the different countries.

I landed in Dakar on 4 April and met with the USAID Collaborative Management of Sustainable Fisheries in Senegal (COMFISH) team early the next day. Going through the presentation of Christopher Mathews (director of USAID/COMFISH in Senegal) for the upcoming meetings, made me realize how sensitive the subject of catch reconstructions was, and how diplomatic I would need to be. I would have to choose my words wisely.

The morning of April 6th, the Senegal workshop began. Around 85 people showed up, notably, the Department of Fisheries (DPM), the Fisheries Research Institute (CRODT), WWF, industrial and artisanal fisheries representatives, the Department of Fisheries Monitoring and Surveillance (DPSP), the US Navy, the local university and women from the fish processing industry, as well as the media. The main goal of the workshop was to validate catch reconstruction results and identify potential collaborators under the project in West Africa. I remembered that in 2012, Senegal denied the existence of any illegal activities in its waters and under-reporting as well, so we had to show some examples to demonstrate that Senegal was not an exception. With Duncan Copeland, our coordinator in West Africa, we prepared a “why bother?” presentation where we brainstormed with the audience on illegal fishing and under-reporting.

The following day, I presented technical details and major results of the catch reconstruction, along with the first estimates of illegal, unreported and unregulated (IUU) fishing. Dougoutigui Koulibaly, the executive secretary of the Industrial Fisheries Association had a comment, and I was preparing myself to be really diplomatic and nice. He said: I couldn’t eat lunch; if your estimations are remotely correct – and according to the audience, they seem to make sense – we are in trouble and we need to act now. I thought that we had come a long way from last year’s sentiment of, “We don’t have illegal fishing – it’s illegal.” One of the recommendations resulting from the workshop that had to be sent to the minister of fisheries was to create a working group to validate the results by 15 May. Senegal was ready to move ahead, and the people from the administration showed a strong will to participate.

Our next stop: Nouadhibou, Mauritania. We landed in Nouakchott, the capital city, and drove across the stunning, sandy desert to Nouadhibou to meet with staff of IMROP, the Mauritanian Institute of Fisheries Research. The meeting, although very casual, took around four hours and we discussed every single point of the methods. The organiser had us meet with the Association of Artisanal Cephalopod Fishermen with whom I used some mixed academic-Algerian Arabic to make myself understood. I implanted keywords such as “domestic,” “industrial“ and “China” in their minds, waiting for them to blow up. It didn’t work that well, as the fishers told me they didn’t believe the fishing access agreement with China would be of any benefit or harm to them. The fact that China is building infrastructure in the ports probably helped them forget the negative impacts of overfishing. But they said they had noticed shrinking fish sizes, shrinking catches and shrinking prices. We met with the subsistence fishing community and asked about their fishing traditions so that we could consider this community in our reconstruction of fisheries history. While the representative of the national federation told us that they don’t have under-reporting anymore, and illegal fishing is rare, his colleague said they don’t know what is happening in their waters, and there is probably discarding and illegal fishing. Two very different versions; the most realistic one
was obvious.

On our way back to Nouakchott, we stopped for around 15 minutes at the beautiful National Park of the Banc D’arguin (PNBA). I couldn’t possibly go to West Africa without stopping at its most famous national park, where overfishing in the adjacent waters has severely depleted fisheries resources.

I managed to get to Monrovia by traveling from Mauritania through Abidjan (Côte d’Ivoire), then Accra (Ghana) before heading back towards Liberia. It was a ridiculous, 48 hour-long trip. I arrived in Monrovia, hardly looking like a human being, and about one hour later, I had the pleasure of meeting with the Bureau of National Fisheries (BNF). One-on-one meetings, it turned out, were the best choice for confirming or contradicting the information others could have given me. The SeaMen Workers Union, a group representing the benefits of workers in the fishing industry, talked about industrial discards and illegal Chinese pair trawling in Liberia. Coordinators and project managers talked about non-commercial fisheries, and the statistics division provided data on discards, transshipping and the real ownership of vessels. Liberia was one of the most challenging countries to reconstruct catches for, as information was scarce. Now it has been enriched by solid, if anecdotal, knowledge. Recently I also learned that after months of battling and collaboration with East African countries, Liberia has won a $2-million case against a Korean operator fishing illegally in its waters!

Crossing the border is always a pain in West Africa; however, the Liberia-Leonean border guards were surprisingly nice and welcoming. The beauty of the villages and the smiles of the children waving at us made the trip less painful and reduced the stress caused by our car breaking down in the middle of the bush. We finally made it to Freetown. The next day, we went to the Ministry of Fisheries, where I had the pleasure of meeting the deputy minister, and a while later, the minister himself. Thereafter we headed up to Guinea – the black hole of illegal fishing in Africa. Before even crossing the border, the friendly Sierra Leone immigration agents warned us: “They are hostiles.”

Indeed, I would add that the country is not only the black hole of illegal fishing, but of corruption, as it was present even in the lowest levels of society. Alkaly Dooumbouya, our collaborator from the fisheries research institute of Conakry (Centre National des Sciences halieutiques de Boussoura; CNSHB) organized a workshop inviting the department of surveillance, university representatives, the ministry of fisheries and the CNSHB. However, it was more appropriate to meet Mr Kaba, the representative of artisanal fisheries, before the workshop, to grasp a realistic picture of fisheries in Guinea. From Mr Kaba, we learned about the politics of fisheries in Guinea, and that the minister of fisheries himself had a fishing company whose vessels were often spotted off Sierra Leone! To tackle this conflict of interest, a new department of surveillance was created under the supervision of the Préfet maritime, an important figure who made himself available for a meeting after the workshop. I also had the pleasure of meeting with some of the legends of fisheries in West Africa, like Ibrahima Diallo, a Guinean fisheries scientist who worked on establishing time series for Guinean fisheries despite many technical and financial challenges. We discussed our research, and in general, people agreed with the methods and partial results, were shocked by the cumulative graphs, but finally accepted the overall outcomes.

After seven nights in Conakry, I was more than relieved to leave Guinea, just because of the perpetual harassment by police officers and immigration agents, some of whom were former mercenaries for Kaddafi.

I was happy finally to see the Bissau-Guinean flag. The immigration checkpoint was in a little village with a friendly imam checking passports. (It occurred to me that this might be an easy way in for drug dealers, as Guinea Bissau is coming to be known as the new Columbia of the world.) Once at the hotel, there was barely enough power for internet access, but we could contact our collaborators from the Bissau-Guinean ministry of fisheries and organise a meeting over Easter – a four-day holiday for 13% of the population that makes the entire nation happy. Meanwhile, we met with local experts from IUCN and discussed possible collaborations, especially on the topic of marine protected areas. We presented our results to Dr Victorino Nahada, the head of the fisheries department. He understood the basic concept and the rationale, as well as the data we used. He didn’t have any negative nor positive comments, but said politely that Guinea-Bissau doesn’t have an industrial fleet, they don’t land here and transhipping is illegal. Then we showed him our satellite pictures of a reefer (refrigerated container ship) operating consistently in Guinea-Bissau waters…

After a stop in The Gambia, I was getting ready to return to Vancouver where a lot of follow-up work was waiting for me. My journey in West Africa could be summarized as productive, intense, emotional and sometimes frustrating, but with a happy ending. I grew up during this intense one-month trip of workshop organisation, presentations and interviews, questioning and interrogations in seven countries of West Africa – amongst them some of the poorest countries in the world. I also learned how difficult it is to be a woman in the manly world of fisheries. I learned to be patient and diplomatic – an aspect of my character that I hadn’t known of myself before. I learned to interview people on very controversial topics and to gain their trust. I was particularly proud to get some of these countries out of their denial concerning illegal fisheries. By the end, I was deemed to be the Ambassador of the Sea Around Us Project in West Africa.

Climate change has impacted global fisheries for decades

CheungGraphic_web_editedA new paper from the Sea Around Us Project published in the journal Nature reveals that warmer ocean temperatures are driving marine species towards cooler, deeper waters, and this in turn, has affected global fisheries catches.

William Cheung, Reg Watson and Daniel Pauly used temperature preferences of fish and other marine species as a sort of “thermometer” to assess effects of climate change on the world’s oceans between 1970 and 2006. They found that global fisheries catches were increasingly dominated by warm-water species.

Click on the image to see how the catch composition of global fisheries has changed in different parts of the world.

To find out more about the research you can access the following resources:
Comment piece in Nature News & Views
Press release
Article published in Nature

Chinese foreign fisheries catch 12 times more than reported

China DWF mapChinese fishing boats catch about US$11.5 billion worth of fish from beyond their country’s own waters each year – and most of it goes unreported – this is according to a new paper led by the Sea Around Us Project, published in the journal Fish and Fisheries.

The study estimates that China’s catch in foreign waters is about 12 times greater than what the country reports to the United Nation’s Food and Agriculture Organization, an international agency that keeps track of global fisheries catches.

Much of the fishing occurs off the coast of West Africa.

You can read more about the findings at Nature, “Detective work uncovers under-reported overfishing.”

See the scientific article, published in Fish and Fisheries, here (open access).

And get the press release and associated materials, including a map illustrating where and how much Chinese vessels currently fish beyond their own waters.

EU Common Fisheries Policy reform, from the inside

by Frédéric Le Manach

In 2009, the European Commission initiated the third reform of its Common Fisheries Policy. Although the basic principles of this new framework – which will stay in place for the next 10 years – were adopted in early February by the Parliament, the Commission is still regularly hearing experts on various topics. This process aims to propose specific amendments to this basic framework, before the final decision around June, once the Parliament, the Commission and the Council of Ministers reach a consensus (yes, this is a rather complex system). One of these hearings was held in Brussels on 19 February, and it focused on deep-sea fishing. Claire Nouvian invited me to attend, and although I was expecting a vivid debate, I was not expecting such vividness.

Claire Nouvian – a Pew Fellow, journalist, director/producer, director of BLOOM (www.bloomassociation.org), but principally woman of action – was one of eight experts heard by European Union (EU) members of parliament (MPs) during a special session on deep-sea fisheries. Other names in this group of experts included Tom Blasdale, chair of the ICES Working Group on the Biology and Assessment of Deep-Sea Fisheries Resources (WGDEEP); Phil Weaver from the UK’s National Oceanography Centre; Pascal Lorance from the French Research Institute for Exploitation of the Sea (Ifremer); and Matthew Gianni, co-founder of the Deep Sea Conservation Coalition. I will not go into much detail about these seven talks. To put it in a clamshell, everybody sort of agreed that deep-sea trawling is harmful to many long-lived species (such as fish, sponges and corals) and fragile ecosystems, and that we know very little about them (there are analytical assessments for only three species, and footage is very rarely available).

Claire introduced the French deep-sea fishery, and the bottom-line of her talk was that despite rather important subsidies, the three companies involved in French deep-sea fishing are all in deficit! The example of Scapêche, which takes between 60 and 86% of the total French deep-sea catch, is staggering: between 2002 and 2011 it received €9.34 million from the state, plus an additional €16.9 million cash-injection from Intermarché, the supermarket chain to which it belongs [1]. (If you are looking for a definition of vertically integrated systems, here you go.) Yet during this 2002-2011 exercise, it had €0.1 million of cumulated net losses after tax. A French MP, co-chair of the fisheries committee, then said something along these lines: “Are you saying that such companies are philanthropic? That they give away money to something that is not worth it? I don’t buy it!”

That was it. At this point the extremely politically correct way of telling white lies or saying nothing too controversial was abandoned for a much spicier and polarized argument. A couple of MPs started to shout, accusing each other of being blind or deaf. Others tried to be more constructive, as one British MP and another French MP said that we should start inquiring upon the use of EU citizens’ money, and further refuted the co-chair’s argument that because some fishers were relying on this fishery, we should maintain it despite a high risk of collapse for most stocks.

Then, we ran out of time. Big surprise. My personal feeling is that this hearing was designed to restrict the debate. Controversial topics were kept for the end, whereas they should have been at the forefront. As a result, I am actually quite confused about the outcome of this meeting. Of course, its aim was not to make decisions, but rather to propose amendments to the Common Fisheries Policy proposal that is currently being reformed. However, I cannot guess what these amendments will be. Some MPs are definitely pro deep-sea fishing, others are firmly against it, but a number of them remain undecided and they will likely base their vote on who shouts the loudest. (Please remember that empty vessels make the most noise.)

Isabella Lövin, Swedish MP and author of the must-read book Silent Seas, managed to get the deadline for these amendments postponed to mid-March. I will follow-up with a report on the progress.

You can listen to the entire meeting at:
www.europarl.europa.eu/ep-live/en/committees/video?event=20130219-1500-COMMITTEE-PECH

References
[1] http://www.bloomassociation.org/download/Accounts_Scapeche_Eng.pdf