The skipjack tuna fishery in the west-central Pacific Ocean: applying neural networks to detect habitat preferences
Abstract
Spatial models for habitat selection were developed using neural networks. The model specifications were elucidated from model construction, training, validating, testing, and interpretation, and applied to skipjack tuna in the west-central Pacific Ocean. The model was created using commercial data from the Oceanic Fisheries Programme of the South Pacific Fisheries Commission and oceanic environmental data include sea surface temperature, horizontal gradient of sea surface temperature calculated from sea surface temperature, sea surface height, and chlorophyll-a. Local abundance indices for skipjack tuna were compiled using catch per unit effort, catch or effort. The optimal neural network models for each abundance index were selected by mean square errors and average relative variances. The predictive ability for optimal neural network models was evaluated by the R 2 value using a cross-validation approach. The accuracy and stability of the optimal models, the contribution of independent variables, and the distribution of spatial sensitivity analyses were shown to vary with the abundance index chosen as the response variable. Chlorophyll-a was the most significant oceanographic factor in habitat selection. These results improve our understanding of how best to apply neural networks for modeling habitat selection by skipjack tuna.
Keywords
Neural network Skipjack tuna West-central Pacific Ocean Fishing ground Oceanographic habitatNotes
Acknowledgements
The authors thank the Oceanic Fisheries Programme (OFP) of the South Pacific Fisheries Commission for providing catch data and the National Oceanic and Atmospheric Administration for providing environmental data. Data analysis and writing of this paper were carried out at the School of Marine Sciences, University of Maine, supported by the Shanghai Ocean University and University of Maine. This work was funded by the Public Science and Technology Research Funds Projects of Ocean (20155014), Shanghai Leading Academic Discipline Project (Fisheries Discipline), and National Natural Science Foundation of China (31702343).
References
- Ahmadi-Nedushan B, St-Hilaire A, Bérubé M, Robichaud E, Thiémonge N, Bobée B (2006) A review of statistical methods for the evaluation of aquatic habitat suitability for instream flow assessment. River Res Appl 22:503–523CrossRefGoogle Scholar
- Aoki I, Komatsu T (1997) Analysis and prediction of the fluctuation of sardine abundance using a neural network. Oceanolica Acta 20:81–88Google Scholar
- Bartlett D (2001) Geostatistics for estimating fish abundance: book reviews. Fish Fish 2:287–288CrossRefGoogle Scholar
- Bazoon M, Stacey DA, Cui C, Harauz G (1994) A hierarchical artificial neural network system for the classification of cortical cells. In: Proceedings of the IEEE International Conference on Neural Networks. IEEE, Orlando, FL, pp 3525–3529Google Scholar
- Butterworth DS (1980) The value of catch-statistics-based management techniques for heavily fished pelagic stocks with special reference to the recent decline of the southwest African pilchard stock. In: Applied operations research in fishing. Edited by K.B. Haley. NATO Conf Ser 11:10, pp 441–464Google Scholar
- Chen S, Billings SA, Grant PM (1990) Non-linear system identification using neural networks. Int J Cont 51:1191–1214CrossRefGoogle Scholar
- Chen XJ, Gao F, Guan WJ, Lei L, Wang JT (2013) Review of fishery forecasting technology and its models. J Fish China 37:1270–1281 (in Chinese with English abstract) CrossRefGoogle Scholar
- Graves JE, Dizon, AZ (1986) Mitochondrial DNA genetic similarities of Atlantic and Pacific skipjack tuna and its management implications. In: Symons PK, Miyake P, Sakagawa G (eds) Proceedings of the ICCAT Conference on the international skipjack year program, ICCAT, Madrid, pp 237–241Google Scholar
- Fielding AH, Bell JF (1997) A review of methods for the assessment of prediction errors in conservation presence/absence models. Environ Conserv 24:38–49CrossRefGoogle Scholar
- Franklin J (2010) Mapping species distributions: spatial inference and prediction. Cambridge University Press, CambridgeCrossRefGoogle Scholar
- Funahashi K (1989) On the approximate realization of continuous mapping by neural networks. Neural Netw 2:183–193CrossRefGoogle Scholar
- Garson GD (1999) Interpreting neural-network connection weights. AI Expert 6:46–51Google Scholar
- Gevrey M, Dimopoulos I, Lek S (2003) Review and comparison of methods to study the contribution of variables in artificial neural network models. Ecol Modell 160:249–264CrossRefGoogle Scholar
- Hoptroff RG (1993) Neural network learning and expert systems. MIT Press, LondonGoogle Scholar
- Hornik K, Stinchcombe M, White H (1989) Multilayer feedforward networks are universal approximators. Neural Netw 2:359–366CrossRefGoogle Scholar
- Intrator O, Intrator N (2001) Interpreting neural-network results: a simulation study. Comput Stat Data Anal 37:373–393CrossRefGoogle Scholar
- Lehodey P, Bertignac M, Hampton J, Lewis A, Picaut J (1997) El Nino Southern Oscillation and tuna in the western Pacific. Nature 389:715–718CrossRefGoogle Scholar
- Lehodey P, Andre JM, Bertignac M, Hampton J, Stoens M, Memery G (1998) Predicting skipjack tuna forage distributions in the equatorial Pacific using a coupled dynamical bio-geochemical model. Fish Oceanogr 7:317–325CrossRefGoogle Scholar
- Lehodey P, Alheit J, Barange M, Baumgartner T, Beaugrand G, Drinkwater K, Fromentin JM, Hare SR, Ottersen G, Perry RI, Roy C, van der Lingen CD, Werner F (2006) Climate variability, fish, and fisheries. J Clim 19:5009–5030CrossRefGoogle Scholar
- Lek S, Guegan JF (2000) Artificial neuronal networks, applications to ecology and evolution. Springer, New YorkCrossRefGoogle Scholar
- Lek S, Delacoste M, Baran P, Dimopoulos I, Lauga J, Aulagnier S (1996) Application of neural networks to modelling nonlinear relationships in ecology. Ecol Modell 90:39–52CrossRefGoogle Scholar
- Lerner B, Levinstein M, Rosenberg B, Guterman H, Dinstein I, Romen Y (1994) Feature selection and chromosome classification using a multilayer preceptron neural network. In: Proceedings of the IEEE International Conference on Neural Networks. IEEE, Orlando, FL, pp 3540–3545Google Scholar
- Maan AK, Jayadevi DA, James AP (2017) A survey of memristive threshold logic circuits. IEEE Trans Neural Netw Learn Syst 28:1734–1746CrossRefPubMedGoogle Scholar
- Mugo R, Saitoh SI, Nihira A, Kuroyama T (2010) Habitat characteristics of skipjack tuna (Katsuwonus pelamis) in the western North Pacific: a remote sensing perspective. Fish Oceanogr 19:382–396CrossRefGoogle Scholar
- Nowlan SJ, Hinton GE (1992) Simplifying neural networks by soft weight-sharing. Neural Comput 4:473–493CrossRefGoogle Scholar
- Olden JD, Joy MK, Death RG (2004) An accurate comparison of methods for quantifying variable importance in artificial neural networks using simulated data. Ecol Modell 178:389–397CrossRefGoogle Scholar
- Özesmi SL, Özesmi U (1999) An artificial neural network approach to spatial habitat modelling with interspecific interaction. Ecol Modell 116:15–31CrossRefGoogle Scholar
- Peterman RM, Steer GJ (1981) Relationship between sport-fishing catchability coefficients and salmon abundance. Trans Am Fish Soc 110:585–593CrossRefGoogle Scholar
- Polito PS, Sato OT, Liu WT (2000) Characterization and validation of the heat storage variability from Topex/Poseidon at four oceanographic sites. J Geophys Res 105:16911–16921CrossRefGoogle Scholar
- Polovina JJ, Howell E, Kobayashi DR, Seki MP (2001) The transition zone chlorophyll front, a dynamic global feature defining migration and forage habitat for marine resources. Prog Oceanogr 49:469–483CrossRefGoogle Scholar
- Refenes AN, Azema-Barac M, Chen W, Karoussos SA (1993) Currency exchange rate prediction and neural network design strategies. Neural Compu Appl 1:46–58CrossRefGoogle Scholar
- Shardlow TF (1993) Components analysis of a density-dependent catchability coefficient in a salmon hook and line fishery. Can J Fish Aquat Sci 50:513–520CrossRefGoogle Scholar
- Solanki HU, Dwivedi RM, Nayak SR, Somvanshi VS, Gulati DK, Pattnayak SK (2003) Fishery forecast using OCM chlorophyll concentration and AVHRR SST: validation results off Gujarat coast, India. Int J Remote Sens 24:3691–3699CrossRefGoogle Scholar
- Solanki HU, Bhatpuria D, Chauhan P (2015) Integrative analysis of AltiKa-SSHa, MODIS-SST, and OCM-chlorophyll signatures for fisheries applications. Mar Geod 38:672–683CrossRefGoogle Scholar
- Swain DP, Wade EJ (2003) Spatial distribution of catch and effort in a fishery for snow crab (Chionoecetes opilio): tests of predictions of the ideal free distribution. Can J Fish Aquat Sci 60:897–909CrossRefGoogle Scholar
- Venables WN, Dichmont CM (2004) GLMs, GAMs and GLMMs: an overview of theory for applications in fisheries research. Fish Res 70:319–337CrossRefGoogle Scholar
- Vignaux M (1996) Analysis of vessel movements and strategies using commercial catch and effort data from the New Zealand hoki fishery. Can J Fish Aquat Sci 53:2126–2136CrossRefGoogle Scholar
- Wang JT, Chen XJ (2013) Changes and prediction of the fishing ground gravity of skipjack (Katsuwonus pelamis) in west-central Pacific Ocean. Period Ocean Univ China 43:44–48 (in Chinese with English abstract) Google Scholar
- Wang JT, Yu W, Chen XJ, Lei L, Chen Y (2015) Detection of potential fishing zones for neon flying squid based on remote-sensing data in the Northwest Pacific Ocean using an artificial neural network. Int J Remote Sens 36:3317–3330CrossRefGoogle Scholar
- Wang JT, Chen XJ, Chen Y (2016) Spatio-temporal distribution of skipjack in relation to oceanographic conditions in the west-central Pacific Ocean. Int J Remote Sens 37:6149–6164CrossRefGoogle Scholar
- Wild A, Hampton J (1993) A review of the biology and fisheries for skipjack tuna, Katsuwonus pelamis, in the Pacific Ocean. In: Shomura RS, Majkowski J, Langi S (eds) Interactions of Pacific tuna fisheries, Proceedings of the first FAO Expert Consultation on Interactions of Pacific Tuna Fisheries, Noumea, New Caledonia. FAO Fisheries Tech Paper, 336, Rome: FAO, pp 1–51Google Scholar
- Yang XM, Dai XJ, Tian SQ, Zhu GP (2014) Hot spot analysis and spatial heterogeneity of skipjack tuna (Katsuwonus pelamis) purse seine resources in the western and central Pacific Ocean. Acta Ecol Sin 34:3771–3778Google Scholar