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Global spatio-temporal patterns in tropical tuna purse seine fisheries on drifting fish aggregating devices (DFADs): Taking a historical perspective to inform current challenges⋆

Published online by Cambridge University Press:  18 April 2013

Alain Fonteneau ,
Emmanuel Chassot  and
Nathalie Bodin
Alain Fonteneau*
Affiliation:
Institut de Recherche pour le Développement (IRD), UMR 212 EME “Exploited Marine Ecosystems” (IRD/IFREMER/UM2), 9 Bd Porée, 35400 Saint Malo, France
Emmanuel Chassot
Affiliation:
Institut de Recherche pour le Développement (IRD), UMR 212 EME “Exploited Marine Ecosystems” (IRD/IFREMER/UM2), Seychelles Fishing Authority, BP570, Victoria, Seychelles
Nathalie Bodin
Affiliation:
Institut de Recherche pour le Développement (IRD), UMR 212 EME “Exploited Marine Ecosystems” (IRD/IFREMER/UM2), Seychelles Fishing Authority, BP570, Victoria, Seychelles
*
a Corresponding author: [email protected]
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Abstract

This study provides a historical overview of the use of drifting fish aggregating devices (DFADs) in purse seine fisheries since the early 1990s, using global tuna fisheries datasets from the four tuna Regional Fisheries Management Organizations (RFMOs). Tropical tuna purse seine fisheries typically target large yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tunas on free-swimming schools and skipjack (Katsuwonus pelamis) and juveniles of yellowfin and bigeye associated with drifting objects. DFADs have enabled global skipjack catches to markedly increase, and have also introduced major scientific issues for all tuna-RFMOs. In particular, they have strongly modified the fishing strategies of purse seiners that fish on a combination of free-swimming and DFAD-associated schools. Consequently, the cumulated search time traditionally used to quantify nominal fishing effort to assess the status of tuna stocks is inconsistent and cannot be used to derive time series of abundance indices from catch-per-unit of-effort (CPUE). In addition, the lack of information available on the construction, deployment, and use of DFADs has prevented effective monitoring of the fishing pressure over the last two decades exerted by purse seine fleets using this fishing mode. Juveniles of tropical tunas represent a substantial proportion of purse seine catch on DFADs in the three oceans, which has raised particular concern for some bigeye stocks that have been subject to overfishing in the past. Catches of juvenile tunas by DFAD fishing may also result in a decrease in recruitment for fisheries that target adult tunas such as longliners. In addition, some demographic parameters of tunas and other species associated with DFADs may be affected by the resultant habitat modification arising from the widespread deployment of DFADs. Evidence in the literature and provided by the ratio-estimator method suggest that fishing DFAD-associated schools may result in about 100 000 t of bycatch and discards annually. In addition, there is further potential for ghost fishing related mortality of sensitive species such as marine turtles and pelagic sharks. In this context and following a precautionary approach, we finally discuss the increasing need for all tuna-RFMOs to reduce, or at least monitor and control, the use of DFADs to mitigate their adverse effects not only on yellowfin and bigeye stocks but also on open-ocean ecosystems.

Keywords

Tuna fisheriesFADbycatchpurse seine fisheriesThunnus albacares, Katsuwonus pelamis, Thunnus obesus
Type
Research Article
Information
Aquatic Living Resources , Volume 26 , Issue 1 , January 2013 , pp. 37 - 48
Copyright
© EDP Sciences, IFREMER, IRD 2013

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Footnotes

⋆

Supporting information, is only available in electronic form at www. [0]alr-journal. [0]org

References

Amandè, M.J., Ariz, J., Chassot, E., De Molina, A.D., Gaertner, D., Murua, H., Pianet, R., Ruiz, J., Chavance, P., 2010, Bycatch of the European purse seine tuna fishery in the Atlantic Ocean for the 2003–2007 period. Aquat. Living Resour. 23, 353–362. CrossRefGoogle Scholar
Amandè, M.J., Chassot, E., Chavance, P., Murua, H., Delgado de Molina, A., Bez, N., 2012, Precision in bycatch estimates: the case of tuna purse-seine fisheries in the Indian Ocean. ICES J. Mar. Sci. 69, 1501–1510. CrossRefGoogle Scholar
Anderson R.C., Zahir H., Jauharee R., Sakamoto, T., Sakamoto I., Johnson G., 2009, Entanglement of live Ridley turtles Lepidochelys olivacea in ghost nets in the equatorial Indian Ocean. Working Party on Ecosystems and Bycatch, 5th Session, IOTC, Mombasa, 12–14 October 2009.
Anonymous, 1993, By-catch and discards in Western Pacific tuna fisheries: A review of SPC data holdings and literature. Standing Committee on tuna and billfish, 16–18 June 1993, SPC, Pohnpei, Federal States of Micronesia.
Anonymous, 2010, Report of the international working group on tuna purse seine and baitboat catch species composition derived from observer and port sampler data, in: Tropical Tunas, ICCAT Col. Vol. Sci. Pap. Madrid, pp. 486–511.
Arenas P., Hall M., Garcia M., 1999, Association of fauna with floating objects in the eastern Pacific ocean. In: Proc. Int. workshop on the ecology and fisheries for tunas associated with floating objects, IATTC Special Report, La Jolla, CA, pp. 285–326.
Ariz J., Delgado de Molina A., Fonteneau A., Gonzales Costas F., Pallarés P., 1999, Logs and tunas in the eastern tropical Atlantic: A review of present knowledge and uncertainties, in: Proc. Int. Workshop on the Ecology and Fisheries for Tunas Associated with Floating Objects, 1992, IATTC, La Jolla, CA, pp. 1–19.
Arrizabalaga, H., De Bruyn, P., Diaz, G.A., Murua, H., Chavance, P., Degado de Molina, A., Gaertner, D., Ariz, J., Ruiz, J., Kell, L.T., 2011, Productivity and susceptibility analysis for species caught in Atlantic tuna fisheries. Aquat. Living Resour. 24, 1–12. CrossRefGoogle Scholar
Baske A., Gibbon J., Benn J., Nickson A., 2012, Estimating the use of drifting Fish Aggregation Devices (FADs) around the globe. PEW Environmental group, discussion paper, 8p.
Bousquet N., Chassot E., Dortel E., Million J., Eveson J.P., Hallier J.-P., Fonteneau A., 2012, Preliminary assessments of tuna natural mortality rates from a Bayesian Brownie-Petersen model. IOTC Working Party on Tropical Tunas, 14th Session, IOTC, Grand Baie, Mauritius, 24–29 October 2012.
Bromhead D., Foster J., Attard R., Findlay J., Kalish J., 2003, A review of the impact of fish aggregating devices (FADs) on tuna fisheries. Final Report to the Fisheries Resources Research Fund. Bureau of Rural Sciences, Canberra.
Cayré P., 1984, Procédure suivie pour la révision de la composition spécifique des statistiques thonières FISM (France, Côte d’Ivoire, Sénégal et Maroc), in: Thonidés tropicaux, Coll.Vol. Sci. Pap. ICCAT, Madrid, pp. 102–107.
Chavance P., Amon Kothias J.B., Dewals P., Pianet R., Amandè M.J., Delgado de Molina A., Djoh A., 2011, Statistics on tuna surface fishery’s bycatch landed in Abidjan, Côte d’Ivoire, for the 1982–2009 period. In: Tropical Tunas, ICCAT Col. Vol. Sci. Pap. ICCAT, Madrid, pp. 2104–2112.
Clarke, S.C., McAllister, M.K., Milner-Gulland, E.J., Kirkwood, G.P., Michielsens, C.G.J., Agnew, D.J., Pikitch, E.K., Nakano, H., Shivji, M.S., 2006, Global estimates of shark catches using trade records from commercial markets. Ecol. Lett. 9, 1115–1126. CrossRefGoogle Scholar
Clermont S., Chavance P., Delgado de Molina A., Murua H., Ruiz J., Ciccione S., Bourjea J., 2012, EU purse seine fishery interactions with marine turtles in the Atlantic and Indian oceans: a 15 year analysis. IOTC Working Party on Ecosystems and Bycatch, IOTC, 8th Session, Cape Town, IOTC webpage.
Dagorn, L., Holland, K., Itano, D., 2007, Behavior of yellowfin (Thunnus albacares) and bigeye (T. obesus) tuna in a network of fish aggregating devices (FADs). Mar. Biol. 151, 595–606. CrossRefGoogle Scholar
Dagorn L., Holland K.N., Restrepo V., Moreno G., 2012, Is it good or bad to fish with FADs? What are the real impacts of the use of drifting FADs on pelagic ecosystems? Fish Fish. DOI: 10.1111/j.1467-2979.2012.00478.x.
Davies T.K., Martin S., Mees C., Chassot E., Kaplan D.M., 2012, A review of the conservation benefits of marine protected areas for pelagic species associated with fisheries. International Seafood Sustainability Foundation, McLean VI, ISSF Tech. Rep. 2012–02.
de Bruyn, P., Murua, H., Aranda, M., 2013, The precautionary approach to fisheries management: How this is taken into account by Tuna regional fisheries management organisations (RFMOs). Mar. Policy 38, 397–406. CrossRefGoogle Scholar
De Finetti, B., 1926, Considerazioni matematich sull’editarietà mendeliana. Metron 6, 3–41. Google Scholar
Delgado de Molina A., Ariz J., Gaertner D., Santana J.C., 2000, Estimacion de la importancia de las capturas de especies accesorias y de descartes en la pesqueria de cerco de tunidos tropicales en el oceanico Atlantico oriental, in: Tunidos tropicales, ICCAT Col. Vol. Sci. Pap. ICCAT, Madrid, pp. 1859–1874.
Dempster, T., Taquet, M., 2004, Fish aggregation device (FAD) research: gaps in current knowledge and future directions for ecological studies. Rev. Fish Biol. Fish. 14, 21–42. CrossRefGoogle Scholar
Food and Agriculture Organization, 1995, Code of conduct for responsible fisheries. FAO, Rome.
Food and Agriculture Organization, 2012, The state of world fisheries and aquaculture 2012. FAO, Rome.
Farley, J.H., Clear, N.P., Leroy, B., Davis, T.L.O., McPerson, G., 2006, Age, growth and preliminary estimates of maturity of bigeye tuna, Thunnus obesus, in the Australian region. Mar. Freshw. Res. 57, 713–724. CrossRefGoogle Scholar
Floch L., Delgado de Molina A., Assan C., Dewals P., Areso J.J.A., Chassot E., 2012, Statistics of the European purse seine fishing fleet and associated flags targeting tropical tunas in the Indian Ocean (1981-2011). IOTC Working Party on Tropical Tunas,14th Session. IOTC, Grand Baie, Mauritius, 24–29 October 2012.
Fonteneau A., 1976, Note sur les problèmes d’identification du bigeye dans les statistiques de pêche, in: Tropical Tunas. ICCAT, Madrid, pp. 168–171.
Fonteneau A., Chassot E., Ortega-Garcia S., Delgado de Molina A., Bez N., 2010, On the use of the De Finetti ternary diagrams to show the species composition of free and FAD associated tuna schools in the Atlantic and Indian oceans, in: Tropical Tunas. Coll. Vol. Sci. Pap., pp. 546–555.
Fonteneau A., Gascuel D., 2008, Growth rates and apparent growth curves, for yellowfin, skipjack and bigeye tagged and recovered in the Indian Ocean during the IOTTP. IOTC Working Party on Tagging Data Analysis, 1st Session, Victoria, Seychelles, 30 June-4 July 2008.
Fonteneau A., Pallarés P., Pianet R., 2000, A worldwide review of purse seine fisheries on FADs. In: Le Gall, J.-Y., Cayré, P., Taquet M. (Eds.), Pêche thonière et dispositifs de concentration de poissons. Actes Colloques-IFREMER, pp. 15–35.
Franco J., Dagorn L., Sancristobal I., Moreno G., 2009, Design of ecological FADs. IOTC Working Party in Ecosystems and Bycatch, 5th Session, IOTC, Mombasa, Kenya, 12-14 October 2009.
Gaertner, D., Ménard, F., Develter, C., Ariz, J., Delgado de Molina, A., 2002, Bycatch of billfishes by the European tuna purse-seine fishery in the Atlantic Ocean. Fish. Bull. 100, 683–689. Google Scholar
Gaertner D., Pallarés P., 2002, Efficacité des senneurs thoniers et effort réels (ESTHER), Programme n° 98/061. Rapp. Sci., Union Européenne, DG Fisheries (DG XIV). Bruxelles.
Gascuel, D., Fonteneau, A., Capisano, C., 1992, Modélisation d’une croissance en deux stances chez l’albacore (Thunnus albacares) de l’Atlantique Est. Aquat. Living Resour. 5, 155–172. CrossRefGoogle Scholar
Greenblatt, P.R., 1979, Associations of tuna with flotsam in the eastern tropical Pacific. Fish. Bull. 77, 147–155. Google Scholar
Hallier, J.-P., Gaertner, D., 2008, Drifting fish aggregation devices could act as an ecological trap for tropical tuna species. Mar. Ecol. Prog. Ser. 353, 255–264. CrossRefGoogle Scholar
Hall, M.A., 1998, An ecological view of the tuna-dolphin problem: impacts and trade-offs. Rev. Fish. Biol. Fish. 8, 1–34. CrossRefGoogle Scholar
Hall M.A., Garcia M., Lennert-Cody C., Arenas P., Miller F., 1999, The association of tunas with floating objects and dolphins in the eastern Pacific Ocean: a review of the current purse-seine fishery. Special Report. Inter-American Tropical Tuna Commission 11.
Hampton, J., 2000, Natural mortality rates in tropical tunas: size really does matter. Can. J. Fish. Aquat. Sci. 57, 1002–1010. CrossRefGoogle Scholar
Harley S.J., Williams P., Hampton J., 2010, Characterization of purse seine fishing activities during the 2009 FAD closure. Presented at the Scientific Committee Sixth Regular Session, WCPFC, Pohnpei, Federal States of Micronesia, 9–17 August 2011.
Harrington, J.M., Myers, R.A., Rosenberg, A.A., 2005, Wasted fishery resources: discarded by-catch in the USA. Fish. Fish. 6, 350–361. CrossRefGoogle Scholar
Herrera M., Pierre L., Million J., 2011, Review of the statistical data available for the tropical tuna species. IOTC Working Party on Tropical Tunas, 13th Session, IOTC, Lankanfinolhu, North Malé Atoll, Republic of Maldives, 16-23 October 2011.
Hunsicker, M.E., Olson, R.J., Essington, T.E., Maunder, M.N., Duffy, L.M., Kitchell, J.F., 2012, Potential for top-down control on tropical tunas based on size structure of predator − prey interactions. Mar. Ecol. Prog. Ser. 445, 263–277. CrossRefGoogle Scholar
Indian Ocean Tuna Commission, 2012, Report of the 15th Session of the IOTC Scientific Committee. Victoria, Seychelles IOTC-2012-SC15-R[E].
International Seafood Sustainability Foundation, 2012, Report of the 2012 ISSF stock assessment workshop: Understanding purse seine CPUE. McLean, VI, ISSF Tech. Rep. 2012–10.
Jaquemet S., Potier M., Ménard F., 2011, Do drifting and anchored Fish Aggregating Devices (FADs) similarly influence tuna feeding habits? A case study from the western Indian Ocean. Fish. Res. 283–290.
Kelleher K., 2005, Discards in the world’s marine fisheries. An update, FAO Fish. Tech. Pap. Rome.
Lorenzen, K., 1996, The relationship between body weight and natural mortality in juvenile and adult fish: a comparison of natural ecosystems and aquaculture. J. Fish. Biol. 49, 627–642. CrossRefGoogle Scholar
Marsac F., Fonteneau A., Ménard F., 2000, Drifting FADs used in tuna fisheries: an ecological trap? In: Le Gall, J.-Y., Cayré, P., Taquet M. (Eds.), Pêche thonière et dispositifs de concentration de poissons. Actes Colloques IFREMER, pp. 537–552.
Mejuto J., Garcia-Cortés B., De la Serna J.M., Ramos-Cartelle A., 2006, Scientific estimations of bycatch landed by the Spanish surface longline fleet targeting swordfish (Xiphias gladius) in the Atlantic Ocean: 2000–2004 period. In: Tropical Tunas, ICCAT Col. Vol. Sci. Pap. ICCAT, Madrid, pp. 1014–1024.
Ménard, F., Stéquert, B., Rubin, A., Herrera, M., Marchal, E., 2000, Food consumption of tuna in the Equatorial Atlantic Ocean: FAD-associated versus unassociated schools. Aquat. Living Resour. 13, 233–240. CrossRefGoogle Scholar
Pianet R., 1999, Evolution du système de collecte et de traitement des données de la pêche thonière des senneurs européens et assimilés de 1981 à 1998.IOTC Proc., pp. 74–96.
Pianet R., Delgado de Molina A., Floch L., Ariz J., Damiano A., Sabaté I., Kouassi Y., N’Gom Sow F., 2011, Statistiques de la pêcherie thonière et assimilée dans l’océan Atlantique durant la période 1991–2010, in: Thonidés tropicaux, Coll. Vol. Sci. Pap. ICCAT, Madrid, pp. 886–914.
Romanov, E.V., 2008, Bycatch and discards in the Soviet purse seine tuna fisheries on FAD-associated schools in the north equatorial area of the Western Indian Ocean. West. Indian Ocean J. Mar. Sci. 7, 163–174. Google Scholar
Romanov, E.V., 2002, Bycatch in the tuna purse-seine fisheries of the western Indian Ocean. Fish. Bull. 100, 90–105. Google Scholar
Sabadach P., Hallier J.-P., 1993, Analyse des données collectées lors des embarquements à bord des senneurs basés aux Seychelles (1986-1991). SFA, Victoria Mahé.
Schaefer, K., Fuller, D., 2005, Behavior of bigeye (Thunnus obesus) and skipjack (Katsuwonus pelamis) tunas within aggregations associated with floating objects in the equatorial eastern Pacific. Mar. Biol. 146, 781–792. CrossRefGoogle Scholar
Schaefer, K.M., Fuller, D.W., 2010, Vertical movements, behavior, and habitat of bigeye tuna (Thunnus obesus) in the equatorial eastern Pacific Ocean, ascertained from archival tag data. Mar. Biol. 157, 2625–2642. CrossRefGoogle Scholar
Scott M.D., Bayliff W.H., Lennert-Cody C.E., Schaefer K., 1999, Proc. Int. Workshop on the ecology and fisheries for tunas associated with floating objects, IATTC Special Report. IATTC, La Jolla CA.
Stevens, J.D., 1992, Blue and mako shark by-catch in the Japanese longline fishery off South-eastern Australia. Aust. J. Mar. Freshw. Res. 43, 227–236. CrossRefGoogle Scholar
Stretta J.-M., Delgado de Molina A., Ariz J., Domalain G., Santana J.C., Séret B., 1998, Analyse des prises d’élasmobranches par les senneurs français et espagnols en Atlantique tropical oriental, en 1995, in: Thonidés tropicaux, ICCAT Coll. Vol. Sci. Pap. ICCAT, Madrid, pp. 81–89.
Ward, P., 2008, Empirical estimates of historical variations in the catchability and fishing power of pelagic longline fishing gear. Rev. Fish. Biol. Fish. 18, 409–426. CrossRefGoogle Scholar
Williams P., Terawasi P., 2011, Overview of tuna fisheries in the Western and Central Pacific Ocean, including economic condition-2010. WCPFC-SC7-2011, Western and Central Pacific Fisheries Commission, 7th Regular Session, Pohnpei, Federated States of Micronesia.
Williams P., Terawasi P., 2012, Overview of tuna fisheries in the Western and Central Pacific Ocean, including economic conditions-2011. WCPFC-SC8-2012/GNWP-1, 8th Regular Session, Busan, Republic of Korea.