Stock assessment of the western winter-spring cohort of Ommastrephes bartramii in the Northwest Pacific Ocean using a Bayesian hierarchical DeLury model based on daily natural mortality during 2005-2015
Keywords:Ommastrephes bartramii, daily natural mortality, Bayesian hierarchical DeLury depletion model, stock assessment, Northwest Pacific Ocean
The purpose of this study was to evaluate the effect of the intensive commercial jigging fishery on the western winter-spring cohort of neon flying squid (Ommastrephes bartramii) in the Northwest Pacific Ocean and to estimate the exploitation status of this stock during the period 2005-2015. We applied a Bayesian hierarchical DeLury depletion model to the Chinese jigging fisheries data to estimate the stock abundance and catchability for each year, and sensitivity analysis on daily natural mortality (M) was conducted. The results indicated that M values had great impacts on the overall estimates of stock size. Initial annual population sizes varied from 66 to 662 million individuals with the M value of 0.003-0.01 per day during the study period. O. bartramii suffered from a certain degree of overexploitation in 2008. The proportional escapement values (M=0.003-0.01) were 8.94% to 19.82% in 2008, with an average of 13.74%, which may have led to a low abundance of O. bartramii and annual catch since 2009. As short-lived ecological opportunists, O. bartramii are extremely sensitive to changes in multi-scale environmental conditions, especially when anomalous environmental conditions occur, and significant between-year variations in the initial abundance resulted in O. bartramii suffering from a certain degree of overexploitation in 2010. Although the proportional escapement met the management target of 40% from 2011 to 2015, the stock size and annual catch still fluctuated at relatively low levels. Improved knowledge of the influences of environmental conditions on abundance of the western winter-spring cohort of neon flying squid can contribute to the sustainable management of this stock.
Adkison M.D., Su Z. 2001. A comparison of salmon escapement estimates using a hierarchical Bayesian approach versus separate maximum likelihood estimation of each year's return. Can. J. Fish. Aquat. Sci. 58: 1663-1671. https://doi.org/10.1139/cjfas-58-8-1663
Arkhipkin A.I., Rodhouse P.G., Pierce G.J., et al. 2015. World squid fisheries. Rev. Fish. Sci. Aquac. 23: 92-252.
Bower J.R., Ichii T. 2005. The red flying squid (Ommastrephes bartramii): A review of recent research and the fishery in Japan. Fish. Res. 76: 39-55. https://doi.org/10.1016/j.fishres.2005.05.009
Brunetti N.E., Ivanovic M.L., Aubone A., et al. 2000. Calamar (Illex argentinus). In: Bezzi S.I., Akselman R., Boschi E.E. (eds), Sintesis del estado de las pesquerias maritimas argentinas y de la Cuenca del Plata. Años 1997-1998, con una actualizacion de 1999. INIDEP, Mar del Plata, Argentine, pp. 103-116.
Caddy J.F. 1993. Some future perspectives for assessment and management of Mediterranean fisheries. Sci. Mar. 57: 121-130.
Cao J., Chen X.J., Chen Y. 2009. Influence of surface oceanographic variability on abundance of the western winter-spring cohort of neon flying squid Ommastrephes bartramii in the NW Pacific Ocean. Mar. Ecol. Prog. Ser. 381: 119-127. https://doi.org/10.3354/meps07969
Cao J, Chen X, Chen Y, et al. 2011. Generalized linear Bayesian models for standardizing CPUE: an application to a squid-jigging fishery in the northwest Pacific Ocean. Sci. Mar. 75: 679-689. https://doi.org/10.3989/scimar.2011.75n4679
Cao J., Chen X.J., Tian S.Q. 2015. A Bayesian hierarchical DeLury model for stock assessment of the west winter-spring cohort of neon flying squid (Ommastrephes bartramii) in the northwest Pacific Ocean. Bull. Mar. Sci. 91: 1-13. https://doi.org/10.5343/bms.2014.1020
Chen X.J., Zhao X.H., Chen Y. 2007. Influence of El Niño/La Niña on the western winter-spring cohort of neon flying squid (Ommastrephes bartramii) in the northwestern Pacific Ocean. ICES J. Mar. Sci. 64: 1152-1160. https://doi.org/10.1093/icesjms/fsm103
Chen X.J., Chen Y., Tian S.Q., et al. 2008a. An assessment of the west winter-spring cohort of neon flying squid (Ommastrephes bartramii) in the Northwest Pacific Ocean. Fish. Res. 92: 221-230. https://doi.org/10.1016/j.fishres.2008.01.011
Chen X.J., Liu B.L., Chen Y. 2008b. A review of the development of Chinese distant-water squid jigging fisheries. Fish. Res. 89: 211-221. https://doi.org/10.1016/j.fishres.2007.10.012
Chen X.J., Liu B.L., Wang Y.G. 2009. Cephalopod in the World. Marine Press, Beijing, China, 1064 pp.
Chen X.J., Cao J., Chen Y., et al. 2012. Effect of the Kuroshio on the spatial distribution of the red flying squid Ommastrephes bartramii in the Northwest Pacific Ocean. Bull. Mar. Sci. 88: 63-71. https://doi.org/10.5343/bms.2010.1098
De Lury D.B. 1947. On the estimation of biological populations. Biometrics 3: 145-167. https://doi.org/10.2307/3001390 PMid:18902271
Gelman A., Carlin J.B., Stern H.S., et al. 2014. Bayesian data analysis. Chapman & Hall, CRC Press, Boca Raton, FL, USA, 656 pp.
Geweke J. 1992. Evaluating the accuracy of sampling-based approaches to the calculation of posterior moments. In: Bernardo J.M., Berger J.O., et al. (eds), Bayesian Statistics 4. Oxford University Press, Oxford, UK.
Hendrickson L.C., Brodziak J., Basson M., et al. 1996. Stock assessment of northern shortfin squid in the northwest Atlantic during 1993. Northwest Fish. Sci. Cent. Ref. Doc. 96-05g: 1-63.
Hokkaido National Fisheries Research Institute. 2004. Stock assessment of the winter spawning cohort of Japanese common squid (Todarodes pacificus) in 2003. In: Fishery Stock Assessment in Japanese Waters in 2004. Fisheries Agency and Fisheries Research Agency, pp. 391-419 (in Japanese).
Ichii T., Mahapatra K., Okamura H., et al. 2006. Stock assessment of the autumn cohort of neon flying squid (Ommastrephes bartramii) in the North Pacific based on past large-scale high seas driftnet fishery data. Fish. Res. 78: 286-297. https://doi.org/10.1016/j.fishres.2006.01.003
McAllister M.K., Hill S.L., Agnew D.J., et al. 2004. A Bayesian hierarchical formulation of the De Lury stock assessment model for abundance estimation of Falkland Islands' squid (Loligo gahi). Can. J. Fish. Aquat. Sci. 61: 1048-1059. https://doi.org/10.1139/f04-084
Murata M., Nakamura Y. 1998. Seasonal migration and diel vertical migration of the neon flying squid, Ommastrephes bartramii, in the North Pacific. Contributed Papers to International Symposium on Large Pelagic Squids. Japan Marine Fishery Resources Research Center, Tokyo, 1998. pp: 13-30.
Murata M., Shimazu Y. 1982. On some population parameters of flying squid Ommastrephes bartramii (Lesueur) in the northwest Pacific. Bull. Hokkaido Reg. Fish. Res. Lab. 47: 1-10 (in Japanese with English abstract).
Roa-Ureta R., Arkhipkin A.I. 2007. Short-term stock assessment of Loligo gahi at the Falkland Islands: sequential use of stochastic biomass projection and stock depletion models. ICES J. Mar. Sci. 64: 3-17. https://doi.org/10.1093/icesjms/fsl017
Roa-Ureta R.H. 2012. Modelling in-season pulses of recruitment and hyper stability-hyper depletion in the Loligo gahi fishery around the Falkland Islands with generalized depletion models. ICES J. Mar. Sci. 69: 1403-1415. https://doi.org/10.1093/icesjms/fss110
Roper C.F.E., Sweeney M.J., Nauen C.E. 1984. FAO species catalogue: an annotated and illustrated catalogue of species of interest to fisheries. Cephalopods of the World, FAO Fish. Synop. 125: 1-277. http://www.fao.org/3/ac479e/ac479e00.htm
Rosenberg A.A., Kirkwood G.P., Crombie J. A., et al. 1990. The assessment of stocks of annual squid species. Fish. Res. 8: 335-350. https://doi.org/10.1016/0165-7836(90)90003-E
Sakurai Y., Kiyofuji H., Saitoh S., et al. 2000. Changes in inferred spawning areas of Todarodes pacificus (Cephalopoda: Ommastrephidae) due to changing environmental conditions. ICES J. Mar. Sci. 57: 24-30. https://doi.org/10.1006/jmsc.2000.0667
Wang Y.G., Chen X.J. 2005. The resource and biology of economic oceanic squid in the world. Ocean Press, Beijing. pp 79-295.
Yatsu A., Midorikawa S., Shimada T., et al. 1997. Age and growth of the neon flying squid, Ommastrephes bartramii, in the North Pacific Ocean. Fish. Res. 29: 257-270. https://doi.org/10.1016/S0165-7836(96)00541-3
Young I.A.G., Pierce G.J., Daly H.I., et al. 2004. Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK). Fish. Res. 69: 211-227. https://doi.org/10.1016/j.fishres.2004.04.013
Yu W., Chen X.J., Yi Q., et al. 2015. Variability of suitable habitat of western winter-Spring cohort for neon flying squid in the Northwest Pacific under anomalous environments. PloS ONE 10: e0122997. https://doi.org/10.1371/journal.pone.0122997 PMid:25923519 PMCid:PMC4414546
Yu W., Chen X.J., Yi Q., et al. 2016. Spatio-temporal distributions and habitat hotspots of the winter-spring cohort of neon flying squid Ommastrephes bartramii in relation to oceanographic conditions in the Northwest Pacific Ocean. Fish. Res. 175: 103-115. https://doi.org/10.1016/j.fishres.2015.11.026
How to Cite
Copyright (c) 2011 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.