Documenting history in Turkey

Aylin Ulman

The author conducting research on recreational anglers on Galata Bridge, in the Golden Horn estuary of Istanbul (© A. Ulman)

by Aylin Ulman

In 2011, I began working for the Sea Around Us Project to complete catch reconstructions for Eastern Mediterranean and Black Sea countries. I quickly realized, while studying Turkey’s fisheries, that some marine ecosystems of Turkey recently underwent immense reductions of commercial species [1], leading to entire trophic shifts, but little data were available to explain these issues. At the beginning of my MSc with Daniel Pauly in 2012, it was decided that I’d go to Turkey to document the shifting baselines syndrome, i.e., gradual shifts in perception of the ecosystem, and collect details on these missing species/habitats.

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ELEFAN in (Daka)R

Participants

During June, Deng Palomares and Daniel Pauly spent a week teaching a newly updated version of the ELEFAN software at the Institute for Fisheries and Aquaculture of the University Cheick Anta Diop of Dakar, Senegal. (Photo: Najih Lazar)

by M.L. ‘Deng’ Palomares and Daniel Pauly

The ELEFAN software and approach for the estimation of von Bertalanffy growth parameters from length-frequency data was developed at the International Center for Living Aquatic Resources Management (ICLARM), in Manila, Philippines, in the early 1980s by Daniel Pauly and two programmers (Noel David and Felimon Gayanilo). It was disseminated in various versions throughout the world, especially in tropical countries, through a series of training courses during the 1980s and 1990s. It also formed the core of a comprehensive software package called FAO-ICLARM Stock Assessment Tools (FiSAT; [1], [2]), still available from the FAO.

Overall, about 5,500 papers based on the ELEFAN approach, as incorporated in FiSAT and its predecessors have been published in the past 30+ years (as identified by Google Scholar records with “ELEFAN” in the title or the body of the text). However, since its release, FiSAT has been updated only once (FiSAT II; [3]), and it has become outdated in content and form. Thus, the offer was accepted to collaborate with USAID’s COMFISH Project in Senegal to produce an updated version of ELEFAN and to test it in a training course in Dakar before releasing it for wider use as open-source software.

The bulk of the R coding was completed by Aaron Greenberg (with Mathieu Colléter also contributing a routine) just in time for a team consisting of Ted Hart (of UBC’s Biodiversity Research Centre), Danielle Knip and Deng Palomares (of the Sea Around Us Project) to create a stand-alone package copied on 25 USB sticks at the end of May.

Daniel Pauly and Deng Palomares then spent a week in an ELEFAN training course, held at the Institute for Fisheries and Aquaculture of the University Cheick Anta Diop of Dakar, teaching the routines behind and the functioning of the ELEFAN package. The group of 25 Senegalese participants consisted of about one-half fisheries scientists and graduate students, and the other half of fisheries inspectors.

While the fisheries inspectors struggled somewhat with the relevance of growth and mortality estimations and clearly preferred Daniel’s lectures on fisheries and climate change issues, the students and scientists benefitted greatly from this training workshop and generated – with Deng’s help – results for sardinella (Sardinella aurita, S. maderensi), white grouper or thiof (Epinephelus aeneus), bonga (Ethmalosa fimbriata) and other species. The results – to our relief – were comparable to those obtained by a group of colleagues (also working for the COMFISH Project) through tedious reading of annual rings on bony structures. Indeed, in the case of octopus (where the cubic root of the weight was used instead of length), results were obtained which could not have been obtained though ageing of bony structures – octopi
have no bones…

Thus, overall, the personnel who had arranged the workshop, notably COMFISH Project Leader Chris Mathews and Najih Lazar, Technical Advisor, both of The University of Rhode Island, were as pleased as we were about both the knowledge that was passed on during the workshop and the performance of the trial version of ELEFAN in R. Obviously, a number of items were noted which require improvement, as well as a swarm of bugs, both of which are due to be fixed in the next two to three months. The high hopes that we have for this new release of ELEFAN in R appear justified.

Daniel used the opportunity of being in Senegal to visit the Département des Pêches Maritimes, where he briefed its Director, Mr. J.-P. Manel, and members of his senior staff on the results of the reconstruction of Senegalese marine catches led by Dyhia Belhabib, with support from the MAVA Foundation and co-authors from the COMFISH project (Ms. Vivianne Koutob), the DPM (Mr. Lamine Mbaye) and WWF-Senegal (Mr. Nassirou Gueye). It was very gratifying that our Senegalese partners acknowledged that they have catch-reporting problems, both with regards to substantial illegal fishing in Senegalese waters and unregulated fishing by Senegalese fishers in the waters of neighbouring countries. This acceptance of reality signifies a level of political maturity that is lacking in many other countries where officialdom prefers to stick its head in the sand.

Daniel also used the opportunity, shortly before leaving Dakar, to hold a press conference with a dozen Senegalese journalists to inform them of a recent study authored by Drs William Cheung, Reg Watson and himself, on global warming and fisheries, which implies a dire future for tropical fisheries. One of the workshop participants suggested to Daniel that the public should be “alerted, but not alarmed” by the trend that this paper describes and the implication for Senegalese fisheries. This point to alert people and not alarm them is an excellent formulation of our job as scientists, and luckily, the Senegalese journalists followed up on it. For those who speak French, you can verify that the Senegalese journalists got the point by reading this article published in Le Soleil Online (www.lesoleil.sn), as an example.

Daniel can also attest that Deng was a big success with the national dress that she was given by the participants (see picture, right)!

References
[1] Gayanilo FC, Sparre P and Pauly D (1996) FAO-ICLARM stock assessment tools (FiSAT). User’s guide. FAO Computerized Information Series No. 8. FAO, Rome. 126 p.
[2] Gayanilo FC and Pauly D (1997) FAO-ICLARM stock assessment tools: reference manual. FAO Computerized Information Series No. 8. FAO, Rome. x+262 p.
[3] Gayanilo FC, Sparre P and Pauly D (2005) FAO-ICLARM stock assessment tools II (FiSAT II). Revised version. User’s guide. FAO Computerized Information Series No. 8. FAO, Rome. vii+168 p.

 

Correction: This is an updated version of the original article, correcting erroneous affiliations.

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