Modelling the impact of climate change on Pacific skipjack tuna population and fisheries
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IPCC-type climate models have produced simulations of the oceanic environment that can be used to drive models of upper trophic levels to explore the impact of climate change on marine resources. We use the Spatial Ecosystem And Population Dynamics Model (SEAPODYM) to investigate the potential impact of Climate change under IPCC A2 scenario on Pacific skipjack tuna (Katsuwonus pelamis). IPCC-type models are still coarse in resolution and can produce significant anomalies, e.g., in water temperature. These limitations have direct and strong effects when modeling the dynamics of marine species. Therefore, parameter estimation experiments based on assimilation of historical fishing data are necessary to calibrate the model to these conditions before exploring the future scenarios. A new simulation based on corrected temperature fields of the A2 simulation from one climate model (IPSL-CM4) is presented. The corrected fields led to a new parameterization close to the one achieved with more realistic environment from an ocean reanalysis and satellite-derived primary production. Projected changes in skipjack population under simple fishing effort scenarios are presented. The skipjack catch and biomass is predicted to slightly increase in the Western Central Pacific Ocean until 2050 then the biomass stabilizes and starts to decrease after 2060 while the catch reaches a plateau. Both feeding and spawning habitat become progressively more favourable in the eastern Pacific Ocean and also extend to higher latitudes, while the western equatorial warm pool is predicted to become less favorable for skipjack spawning.
KeywordsFishing Fishing Effort Yellowfin Tuna Maximum Sustainable Yield Tropical Pacific Ocean
The authors wish to thank the Ocean Productivity team for providing the SeaWiFS-derived primary production, Peter Williams (SPC) and Michael Hinton (IATTC) for preparing and supplying catch and size composition data, and Laurent Bopp for assisting in the use of IPSL-CM4 and PISCES outputs.
This work was funded partly by the 10th European Development Fund project SCICOFISH (Scientific Support to coastal and Oceanic Fisheries Management in the western and Central Pacific Ocean), the Australian Department of Climate Change and Energy Efficiency and by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) project (Enhanced estimates of climate change impacts on WCPO tuna). The views expressed herein are those of the authors and do not necessarily reflect the views of their organizations or funding Agencies.
- Bell JD, Reid C, Batty MJ, Allison EH, Lehodey P, Rodwell L, Pickering TD, Gillett R, Johnson JE, Hobday AJ, Demmke A (2011) Economic and social implications of climate change for contributions by fisheries and aquaculture to the Pacific Community. In: Bell JD, Johnson JE, Hobday AJ (eds) Vulnerability of tropical Pacific fisheries and aquaculture to climate change. Secretariat of the Pacific Community, Noumea, pp 733–801Google Scholar
- Ganachaud AS, Sen Gupta A, Orr JC, Wijffels SE, Ridgway KR, Hemer MA, Maes C, Steinberg CR, Tribollet AD, Qiu B, Kruger JC (2011) Observed and expected changes to the tropical Pacific Ocean. In: Bell J, Johnson JE, Hobday AJ (eds) Vulnerability of tropical pacific fisheries and aquaculture to climate change. Secretariat of the Pacific Community, Noumea, pp 115–202Google Scholar
- Garcia HE, Locarnini RA, Boyer TP, Antonov JI, Baranova OK, Zweng MM, Johnson DR (2010) World Ocean Atlas 2009, volume 3: dissolved oxygen, apparent oxygen utilization, and oxygen saturation. In: Levitus S (ed) NOAA Atlas NESDIS 70. U.S. Government Printing Office, Washington, p 344Google Scholar
- Hourdin F, Foujols MJ, Codron F, Guemas V, Dufresne JL, Bony S, Denvil S, Guez L, Lott F, Ghattas J, Braconnot P, Marti O, Meurdesoif Y, Bopp L (2012) Impact of the LMDZ atmospheric grid configuration on the climate and sensitivity of the IPSL-CM5A coupled model. Clim DynGoogle Scholar
- Hoyle S, Kleiber P, Davies N, Langley A, Hampton J (2011) Stock assessment of skipjack tuna in the western and central Pacific Ocean. Seventh Regular Session of the Scientific Committee, 9–17 August 2011, Pohnpei, Federated States of Micronesia, WCPFC-SC7-2011/SA-WP-04: p 134Google Scholar
- Langley A, Hampton J (2008) Stock assessment of skipjack tuna in the western and central Pacific Ocean. Fourth Regular Session of the Scientific Committee, 11–22 August 2008 Port Moresby, Papua New Guinea, WCPFC-SC4-2008/SA-WP-4: p 75Google Scholar
- Lehodey P, Hampton J, Brill RW, Nicol S, Senina I, Calmettes B, Pörtner HO, Bopp L, Ilyina T, Bell JD, Sibert J (2011a) Vulnerability of oceanic fisheries in the tropical Pacific to climate change. In: Bell J, Johnson JE, Hobday AJ (eds) Vulnerability of tropical pacific fisheries and aquaculture to climate change. Secretariat of the Pacific Community, Noumea, pp 447–506Google Scholar
- Lehodey P, Senina I, Calmettes B, Hampton J, Nicol S, Williams P, Jurado Molina J, Ogura M, Kiyofuji H, Okamoto S (2011b) SEAPODYM working progress and applications to Pacific skipjack tuna population and fisheries. 7th regular session of the Scientific Steering Committee, 8–17 August 2011, Pohnpei, Federate States of Micronesia. WCPFC-SC7-2011/EB- WP 06. http://www.wcpfc.int/meetings/2011/7th-regular-session-scientific-committee
- Locarnini RA, Mishonov AV, Antonov JI, Boyer TP, Garcia HE, Baranova OK, Zweng MM, Johnson DR (2010) World Ocean Atlas 2009, volume 1: temperature. In: Levitus S (ed) NOAA Atlas NESDIS 68. U.S. Government Printing Office, Washington, p 184Google Scholar
- Nakicenovic N, Alcamo J, Davis G, De Vries B et al (2000) Special report on emissions scenarios: a special report of the working group III of the intergovernmental panel on climate change. PNNL-SA-39650. Cambridge University Press, New YorkGoogle Scholar
- Schaefer KM (1998) Reproductive biology of yellowfin tuna (Thunnus albacares) in the eastern Pacific Ocean. IATTC Bull 21(5):205–272Google Scholar
- Schaefer KM (2001) Assessment of skipjack tuna (Katsuwonus pelamis) spawning activity in the eastern Pacific Ocean. Fish Bull 99:343–350Google Scholar
- Schneider B, Bopp L, Gehlen M, Segschneider TL, Frölicher J, Cadule P, Friedlingstein P, Doney SC, Behrenfeld MJ, Joos F (2008) Climate-induced interannual variability of marine primary and export production in three global coupled climate carbon cycle models. Biogeosci 5:597–614CrossRefGoogle Scholar
- Sibert JR, Hampton J, Fournier DA, Bills PJ (1999) An advection–diffusion reaction model for the estimation of fish movement parameters from tagging data, with application to skipjack tuna (Katsuwonus pelamis). Can J Fish Aquat Sci 56:925–938Google Scholar
- Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M, Miller HL (eds) (2007) Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, 2007. Cambridge University Press, CambridgeGoogle Scholar
- Sund PN, Blackburn M, Williams F (1981) Tunas and their environment in the Pacific Ocean: a review. Oceanogr Mar Biol Ann Rev 19:443–512Google Scholar