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Stock assessment of chub mackerel (Scomber japonicus) in the central East China Sea based on length data

Published online by Cambridge University Press:  30 October 2013

Yingbin Wang
Affiliation:
School of Fishery, Zhejiang Ocean University, Zhoushan, 316000, China
Ji Zheng*
Affiliation:
School of Fishery, Zhejiang Ocean University, Zhoushan, 316000, China
Cungen Yu
Affiliation:
School of Fishery, Zhejiang Ocean University, Zhoushan, 316000, China
*
Correspondence should be addressed to: J. Zheng, School of Fishery, Zhejiang Ocean University, Zhoushan, 316000, China email: [email protected]

Abstract

The chub mackerel (Scomber japonicus) has been one of the important commercial pelagic species in the East China Sea since the decline of traditional demersal economic species. Although chub mackerel resources are suffering over-exploitation with the increase of fishing effort, their response to fishing and changing trends have not been analysed because of a shortage of data. In this paper we separated sample catches of chub mackerel from the central East China Sea during 2009 and 2010 into three age groups based on the age–fork length key. We then estimated the maximum sustainable yield (MSY) and built a spawner–recruitment relationship based on the fishery statistics of purse seine vessels, lighting purse seine vessels and deep-water purse seine vessels from 2006 to 2012. We predicted the biomass, spawning biomass, catches and the length compositions of catches when fishing at the current intensity (fishing mortality (F) = 0.7). The results showed that the MSY of chub mackerel is about 18.8 × 104t, and the fishing effort at MSY (EMSY) is about 72 standard purse seine vessels (both the lighting purse seine vessels and deep-water purse seine vessels were standardized to purse seine vessels), which is equivalent to F = 0.4. If F remains at the current level, the biomass of chub mackerel will remain at 45.3 × 104t. At the same time, more than 40% in the catch will be the individuals smaller than 200 mm, and only about 8% will be larger than 300 mm. Therefore, there is little potential for further exploitation of the chub mackerel resources in the central East China Sea, and it is better to reduce F to less than 0.4 for sustainable utilization.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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References

REFERENCES

Beamish, R.J. and McFarlane, G.A. (1983) The forgotten requirement of age validation in fisheries biology. Transactions of the American Fisheries Society 112, 735743.2.0.CO;2>CrossRefGoogle Scholar
Berg, C.W. and Kristensen, K. (2012) Spatial age–length key modelling using continuation ratio logits. Fisheries Research 129/130, 119126.CrossRefGoogle Scholar
Campana, S.E. (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, 197242.CrossRefGoogle Scholar
Campana, S.E., Annand, M.C. and McMillan, J.I. (1995) Graphical and statistical methods for determining the consistency of age determinations. Transactions of the American Fisheries Society 124, 131138.2.3.CO;2>CrossRefGoogle Scholar
Chen, W.Z., Hu, F. and Yan, L.P. (1998) Stock assessment of Scomber japonicus from the East China Sea with virtual population analysis. Journal of Fisheries of China 22, 334339.Google Scholar
Cheng, J.H. and Lin, L.S. (2004) Study on the biological characteristics and status of common mackerel (Scomber japonicus Houttuyn) fishery in the East China Sea region. Marine Fisheries 26, 7378.Google Scholar
Cui, K. and Chen, X.J. (2005) Study on inter-annual change of the yields of Pnunmatophorus japonicus and Decapterus maruadsi for purse seine fishing grounds in the East China Sea and the Yellow Sea. Journal of Marine Sciences 23, 4149.Google Scholar
Ding, R.F., Yu, L.F. and Yan, Y.M. (1987) Fisheries resource survey and division in the East China Sea. Shanghai: East China Normal University Press.Google Scholar
Ding, Y.M. (1994) The development of mackerel purse seine fishery and utilization of mackerel resource. Shangdong Fisheries 11, 2123.Google Scholar
Drevs, T. and Raid, T. (2010) Comparative study of three alternative methods of aging Baltic flounder (Platichthys flesus). Estonian Journal of Ecology 59, 136146.CrossRefGoogle Scholar
Heery, E.C. and Berkson, J. (2009) Systematic errors in length frequency data and their effect on age-structured stock assessment models and management. Transactions of the American Fisheries Society 138, 218232.CrossRefGoogle Scholar
Hilborn, R. and Walters, C.J. (1992) Quantitative fisheries stock assessment: choice, dynamics and uncertainty. New York: Chapman & Hall.CrossRefGoogle Scholar
Kimura, D.K. (1977) Statistical assessment of the age–length key. Journal of the Fisheries Research Board of Canada 34, 317324.CrossRefGoogle Scholar
Knight, W. (1968) Asymptotic growth: an example of nonsense disguised as mathematics. Journal of the Fisheries Research Board of Canada 25, 13031307.CrossRefGoogle Scholar
Li, G., Chen, X.J. and Guan, W.J. (2010) Stock assessment and risk analysis of management strategies for Scomber japonicus in the East China Sea and Yellow Sea using a Bayesian approach. Journal of Fisheries of China 34, 740750.CrossRefGoogle Scholar
Li, Z. and Liu, Q. (2007) A study of ELEFAN and SLCA for estimating growth parameters. Transactions of Oceanology and Limnology 3, 8187.Google Scholar
Liu, Y., Yan, L.P., Hu, F. and Cheng, J.H. (2005) Age and growth of Pneumatophorus japonicus in the north of the East China Sea and the south of the Yellow Sea. Marine Fisheries 27, 133138.Google Scholar
Pauly, D. (1980) On the interrelationships between natural mortality, growth parameters and mean environmental temperature in 175 fish stocks. Journal du Conseil International pour l'Exploration de la Mer 39, 175192.CrossRefGoogle Scholar
Quinn II, T.J. and Deriso, R.B. (1999) Quantitative fish dynamics. New York: Oxford University Press, Biological Resource Management Series.CrossRefGoogle Scholar
Roff, D.A. (1980) A motion to retire the von Bertalanffy function. Canadian Journal of Fisheries and Aquatic Sciences 37, 127129.CrossRefGoogle Scholar
Song, H.T., Chen, A.M., Ding, T.M., Miao, Z.Q., Li, P., Shui, B.N., Huang, C.P. and Shang, J.F. (1995) A stock utilization survey of mackerel and scad in Zhejiang fishing ground. Journal of Zhejiang College of Fisheries 14, 213.Google Scholar
Terceiro, M. (2011) Stock assessment of summer flounder for 2011. Northeast Fisheries Science Center Reference Document 11–20.Google Scholar
von Bertalanffy, L. (1938) A quantitative theory of organic growth (inquiries on growth laws II). Human Biology 10, 181213.Google Scholar
Wang, K., Yan, L.P., Cheng, J.H. and Li, J.S. (2007) Study on the reasonable utilization of chub mackerel in the East China Sea. Marine Fisheries 29, 337343.Google Scholar
Xu, L.X. (2002) Preliminary analyses of biological characteristics and production of the southern East China Sea summer purse seine catches. Marine Fisheries Supplement, 5053.Google Scholar
Xu, L.X., Zhang, M. and Sun, M.C. (2000) Discussion about the purse seine exploitation on the south fishing ground of the East China Sea. Fisheries Modernization 2, 3638.Google Scholar
Yan, L.P., Li, J.S., Ling, J.Z., Ye, S.Z. and Zhang, H.L. (2010) Assessment on the biomass of Scomber japonicus resources in the central East China Sea by length-structure VPA. Progress in Fishery Sciences 31, 1622.Google Scholar
Yan, L.P., Zhang, H., Li, S.F. and Li, J.S. (2012) Progress of population identification and classification of chub mackerel (Scomber japonicus) in the East China Sea and the Yellow Sea. Marine Fisheries 39, 217221.Google Scholar
Zhang, H.L., Pan, G.L., Yao, G.Z. and Zhou, Y.D. (2006) Investigation on non-national company purse seining fisheries with light in Zhjiang Province. Journal of Ocean University (Natural Science) 25, 397401.Google Scholar
Zhang, H.L., Zhou, Y.D. and Chen, B. (2007) Analysis on production condition of deep-water light seining fisheries in Zhejiang Province. Marine Fisheries 29, 281284.Google Scholar
Zheng, J. (2008) The research of management by light-seine in the East China Sea. Journal of Zhejiang Ocean University (Natural Science) 27, 5159.Google Scholar
Zheng, J., Wang, Y.B., Li, R.X., Qin, T. and Ye, Q.T. (2012) Stock assessment of jack Scomber japonicus and Decapterus maruadsi in coastal waters of Zhejiang Province. Journal of Zhejiang Ocean University (Natural Science 31, 309315, 370.Google Scholar