Browse > Article
http://dx.doi.org/10.3796/KSFT.2008.44.3.194

Standardization of CPUE for bigeye(Thunnus obesus) and yellowfin(Thunnus albacares) tunas by the Korean longline fishery in the Indian Ocean  

Kwon, You-Jung (Department of Fisheries Physics, Graduate School, Pukyong National University)
An, Doo-Hae (Distant Water Fisheries Resources Division, National Fisheries Research and Development Institute)
Lee, Jae-Bong (Fisheries Resources Research Division, National Fisheries Research and Development Institute)
Zhang, Chang-Ik (Department of Fisheries Physics, Graduate School, Pukyong National University)
Moon, Dae-Yeon (Distant Water Fisheries Resources Division, National Fisheries Research and Development Institute)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.44, no.3, 2008 , pp. 194-206 More about this Journal
Abstract
This study standardized catch per unit effort(CPUE) of the Korean longline fishery, which has been used to assess the status of stock as an index of abundance, for bigeye and yellowfin tunas in the Indian Ocean. The Generalized Linear Model(GLM) was used to analyze the fishery data, which were catch in number and effort data collected each month from 1971 to 2007 by $5\;{\times}\;5$ degree of latitude and longitude. Explanatory variables for the GLM analysis were year, month, fishing area, number of hooks between floats(HBF), and environment factors. The HBF was divided into three classes while the area was divided into eight subareas. Although sea surface temperature(SST) and southern oscillation index(SOI) were considered as environmental factors, only SST was used to build a model based on statistical significance. Standardized CPUE for yellowfin tuna showed a declining trend, while nominal CPUE for the species showed an increasing trend.
Keywords
Bigeye tuna Thunnus obesus; Yellowfin tuna Thunnus albacares; Standardized CPUE; Generalized Linear Model; Indian Ocean;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Polacheck, T., 2006. Tuna longline catch rates in the Indian Ocean: Did industrial fishing result in a 90% rapid decline in the abundance of large predatory species?, Mar. Pol., 30(5), 470482   DOI   ScienceOn
2 Hoyle, S.D. and M.N. Maunder, 2005. Status of yellowfin tuna in the Estern Pacific Ocean in 2004 and outlook for 2005. Inter-Amer. Trop. tuna Comm. Stock Assess. Rep., pp. 102
3 ICCAT(International Commission for the Conservation of Atlantic Tunas), 2005. Report of the 2004 ICCAT bigeye tuna stock assessment session. 58(1), pp.110
4 IOTC(Indian Ocean Tuna Commssion), 2007. Report of the Ninth Session of the IOTC Working Party on Tropical Tunas. IOTC-2007-WPTT-R[E], pp. 44
5 Liu, H., S. Chang and S. Chang, 2007. Catch rate standardization runs for yellowfin yuna caught by Taiwanese deep sea longline fishery in the Indian Ocean using generalized linear model and generalized linear mixed model. IOTC-2007-WPTT-19, pp. 13
6 Maunder, M.N., 2001. A general framework for integrating the standardization of catch per unit of effort into stock assessment models Can. J. Fish. Aquat. Sci., 58, 795-803   DOI
7 Maunder, M.N. and S.J. Harley, 2005. Status of bigeye tuna in the Estern Pacific Ocean in 2004 and outlook for 2005. Inter-Amer. Trop. tuna Comm. Stock Assess. Rep., pp. 206
8 Maunder, M.N. and A.E. Punt, 2004. Standardizing catch and effort data: a review of recent approaches. Fish. Res., 70, 141-159   DOI   ScienceOn
9 Nelder, J.A. and R.W.M. Wedderburn. 1972. Generalized linear models. J. R. Statist. Soc., 137, 370-384   DOI   ScienceOn
10 FAO, 1997. Review of the state of world fishery resources: Marine Resources Service. FAO Fisheries Circular., No. 920, pp. 173
11 FAO, 2003. Managing fishing capacity of the world tuna fleet. FAO Fisheries Circular., No. 982, pp. 82
12 FAO, 2007. Capture production 2005. FAO Yearbook of Fishery Statistics, Vol. 100/1. pp. 539
13 Gavaris, S., 1980. Use of a multiplicative model to estimate catch rate and effort from commercial data. Can. J. Fish. Aquat. Sci., 37, 2272-2275   DOI
14 Hampton, J., A. Langley and P. Kleiber, 2006a. Stock assessment of bigeye tuna in the Western and Central Pacific Ocean, including an analysis of management options. WCPFC-SC2-2006/SA WP-2, pp. 103
15 Olsen, S. and T. Laevastu, 1983. Factors affecting catch of longlines, evaluated by a simulation model of longline fishing. Draft manuscript for ICES Fish Capture Comm., pp. 13
16 Maunder, M.N. and P.J. Starr, 1995. Rock lobster standardized CPUE analysis. New Zealand Fisheries Assessment Res. Doc. 95/11. [Available from National Institute of Water and Atmospheric Research (NIWA), Greta Point, P.O. Box 297, Wellington, N.Z.], pp. 28
17 Hinton, M.G. and H. Nakano, 1996. Standardizing catch and effort statistics using physiological, ecological, or behavioral constraints and environmental data, with an application to blue marlin(Makaira nigricans) catch and effort data from Japanese longline fisheries in the Pacific. Inter-Am. Trop. Tuna Comm. Bull., 21, 171-200
18 Guisan, A., Jr. T.C. Edwards and T. Hastie, 2002. Generalized linear and generalized additive models in studies of species distributions: setting the scene. Ecol. modell., 157, 89-100   DOI   ScienceOn
19 Okmoto, H. and H. Shono, 2006. Japanese longline CPUE for bigeye tuna in the Indian Ocean up to 2004 standardized by GLM applying gear material information in the model. IOTC-2006-WPTT-1, pp. 17
20 Okmoto, H., H. Shono and T. Nishida, 2007. Japanese longline CPUE for yellowfin tuna in the Indian Ocean up to 2005 standardized by GLM. IOTC-2007-WPTT-10, pp. 23
21 Polacheck, T., R. Hilborn, and A.E. Punt, 1993. Fitting surplus production models: comparing methods and measuring uncertainty. Can. J. Fish. Aquat. Sci., 50, 2597-2607   DOI   ScienceOn
22 Quinn, II T.J. and R.B. Deriso, 1999. Quantitative fish dynamics. Oxford University Press. New York, pp. 542
23 Shono, H. and M. Ogura, 1999. The standardized skipjack CPUE including the effect of searching devices, of the Japanese distant water pole and line fishery in the Western Central Pacific Ocean. ICCAT-SCRS/99/59, pp. 18
24 Wang, S., S. Chang, T. Nishida and S. Lin, 2006. CPUE standardization of Indian Ocean swordfish from Taiwanese longline fishery for Data up to 2003. OTC-2006-WPB-09, pp. 13
25 Hampton, J., A. Langley and P. Kleiber, 2006b. Stock assessment of yellowfin tuna in the Western and Central Pacific Ocean, including an analysis of management options.WCPFC-SC2-2006/SA WP-1, pp. 99
26 Hilborn, R. and C.J. Walters, 1992. Quantitative fisheries stock assessment: choice, dynamics and uncertainty. Chapman and Hall, New York, pp. 570