Main Article Content
The present study provides preliminary information on age and growth for bigeye tuna, Thunnus obesus (Lowe, 1839) caught in the northeastern Indian Ocean. Two hundred and ten (210) individuals (size range: 41.0–188.5 cm fork length, FL) were collected from Phuket port, Thailand. High correlations were found (r>0.95) among head length, length to first dorsal fin and fork length. Age determined in 69 fish (size range: 41.0 to 137.1 cm FL) ranged between 133 and 1,530 days. Length and age data were fitted to the von Bertalanffy, Logistic and Gompertz growth models. The lowest sum of squares was obtained from the Logistic model, for which the asymptotic length was 180.49 cm FL, growth coefficient was 0.72 year-1, and theoretical age at size equal to zero was 1.95 years. These findings serve as a baseline for further use in assessment of the status of bigeye tuna stocks in the Indian Ocean.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
2. Brill, R.W. 1994. A review of temperature and oxygen tolerance studies of tunas pertinent to fisheries oceanography, movement models and stock assessments. Fisheries Oceanography 3(3): 204-216.
3. Campana, S. 2001. Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods. Journal of Fish Biology 59: 197-242.
4. Duarte-Neto, P., F.M. Higa and R.P. Lessa. 2012. Age and growth estimation of, Thunnus obesus (Teleostei: Scombridae) in the southwestern Atlantic. Neotropical Ichthyology 10(1): 149-158.
5. Eveson, J.P. and J. Million. 2008. Estimation of Growth Parameters for Yellowfin, Bigeye and Skipjack Tuna Using Tag-recapture Data. IOTC Working Party on Tagging Data Analysis 30 June-4 July 2008, Seychelles International Conference Centre, Victoria, Seychelles. 31 pp.
6. Farley, J.H., N.P. Clear, B. Leroy, T.L.O. Davis and G.C. McPherson. 2006. Age, growth and preliminary estimates of maturity of bigeye tuna, Thunnus obesus, in the Australian region. Marine and Freshwater 57: 713-724.
7. Farley, J.H., P. Eveson, K. Krusic-Golub, C. Sanchez, F. Roupsard, S. McKechnie, S. Nicol, B. Leroy, N. Smith and S.K. Chang. 2017. Age, Growth and Maturity of Bigeye Tuna in the Western and Central Pacific Ocean. Working Paper WCPFC-SC13-2017/SA-WP-01 Rev 1. Rarotonga, Cook Islands. 44 pp.
8. Froese, R. and D. Pauly. 2019. FishBase. https://www.fishbase.in/summary/Thunnus-obesus.html. Cited 5 Aug 2020.
9. Gompertz, B. 1825. On the nature of the function expressive of the law of human mortality and on a new mode of determining the value of life contingencies. Philosophical Transactions of the Royal Society of London 115: 515-585.
10. Hallier, J.P., B. Stequert, O. Maury and F.X. Bard. 2005. Growth of bigeye tuna (Thunnus obesus) in the eastern Atlantic Ocean from tagging-recapture data and otolith readings. ICCAT Collective Volume of Scientific Papers 57: 181-194.
11. Holland, K.N., R.W. Brill and R.K.C. Chang. 1990. Horizontal and vertical movements of yellowfin and bigeye tuna associated with Fish Aggregating Devices. Fishery Bulletin 88(3): 493-507.
12. Indian Ocean Tuna Commission (IOTC). 2016. Bigeye Tuna. http://www.iotc.org/sites/default/files/documents/science/species_summaries/english/Bigeye%20tuna%20Supporting%20Information.pdf. Cited 5 Aug 2020.
13. Indian Ocean Tuna Commission (IOTC). 2020. Status of reporting of fisheries statistics and data quality. https://iotc.org/data/status-reporting-iotc-stats. Cited 5 Aug 2020.
14. International Union for the Conservation of Nature (IUCN). 2016. Red List of Marine Bony Fishes of the Eastern Central Atlantic. https://doi.org/10.2305/IUCN.CH.2016.04.en. Cited 5 Aug 2020.
15. Katsanevakis, S. 2006. Modelling fish growth: Model selection, multi-model inference and model selection uncertainty. Fisheries Research 81: 229-235.
16. Lehodey, P., J. Hampton and B. Leroy. 1999. Preliminary Results on Age and Growth of Bigeye Tuna (Thunnus obesus) from the Western and Central Pacific Ocean as Indicated by Daily Growth Increments and Tagging Data. Working Paper bet-2, presented at SCTB12 16-23 June 1999, Tahiti, French Polynesia. 18 pp.
17. Maunder, M.N., R.B. Deriso, K.M. Schaefer, D.W. Fuller, A.M. Aires-da-Silva, C.V. Minte-Vera and S.E. Campana. 2018. The growth cessation model: a growth model for species showing a near cessation in growth with application to bigeye tuna (Thunnus obesus). Marine Biology 165(4): 76. DOI: 10.1007/s00227-018-3336-9.
18. Miyabe, N. 2001. Estimation of selectivity at age for bigeye tuna in the Indian Ocean. IOTC Proceedings no. 4, 2001: 483-490.
19. Munro, J.L. and D. Pauly. 1983. A simple method for comparing growth of fishes and invertebrates. ICLARM Fishbyte 1: 5-6.
20. Nootmorn, P. 2004. Reproductive biology of bigeye tuna in the Eastern Indian Ocean. IOTC–2004–WPTT04–05. https://www.researchgate.net/publication/252644542_Reproductive_Biology_of_Bigeye_tuna_in_the_eastern_Indian_ocean. Cited 5 Aug 2020.
21. Ogle, D.H., P. Wheeler and A. Dinno. 2020. FSA: Fisheries Stock Analysis. R package version 0.8.30. https://github.com/droglenc/FSA. Cited 5 Aug 2020.
22. Pardo, S.A, A.B. Cooper and N.K. Dulvy. 2013. Avoiding ﬁshy growth curves. Methods in Ecology and Evolution 4: 353-360.
23. R Development Core Team. 2019. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/. Cited 5 Aug 2020.
24. Ricker, W.E. 1975. Computation and interpretation of biological statistics of fish populations. Bulletin of the Fisheries Research Board of Canada 191: 1-382.
25. Secor, D.H., R. Allman, D. Busawon, B. Gahagan, W. Golet, E. Koob, P.L. Luque and M. Siskey. 2014. Standardization of otolith-based ageing protocols for Atlantic bluefin tuna. Collective Volume of Fcientific Paper ICCAT 70(2): 357-363.
26. Stequert, B. and F. Conand. 2004. Age and growth of bigeye tuna (Thunnus obesus) in the Western Indian Ocean. Cybium 28: 163-170.
27. Sun, C.L., C.L. Huang, S.Z. Yeh. 2001. Age and growth of the bigeye tuna, Thunnus obesus, in the western Paciﬁc Ocean. Fishery Bulletin 99: 502-509.
28. Von Bertalanffy, L. 1938. A quantitative theory of organic growth (inquiries on growth laws II). Human Biology 10: 181-213.
29. Williams A.J., B.M. Leroy, S.J. Nicol, J.H. Farley, N.P. Clear, K. Krusic-Golub and C.R. Davies. 2013. Comparison of daily- and annual-increment counts in otoliths of bigeye (Thunnus obesus), yellowfin (T. albacares), southern bluefin (T. maccoyii) and albacore (T. alalunga) tuna. ICES Journal of Marine Science 70(7): 1439-1450.
30. Zhu, G.P., X.J. Dai, L.M. Song and L.X. Xu. 2011. Size at sexual maturity of bigeye tuna Thunnus obesus (Perciformes: scombridae) in the tropical waters: a comparative analysis. Turkish Journal of Fisheries and Aquatic Sciences 11: 149-156.