The Dutch b
--- .... -··· . ·-· ·-·
l fish ' p .-- ---
··---
d' ----~-ds and .. _ ... oers per 100 fishina h b--·-·
No of
Area Plaice Sole Dab Flounder Whiting God
Discards samples
% No % No % No % No % No % No
Ave rage 1976-1990 49 North Sea 49 29064 16 2395 98 100953 81 1411 85 8508 66 2762
1978 8 North Sea 41 16910 9 912 98 75310 100 197 93 12926 41 1591
1979 9 North Sea 55 27101 5 908 99 103525 100 64 71 3508 49 1735
1980 9 North Sea 58 50052 5 246 96 80832 80 1547 70 5860 71 6217
1981 8 North Sea 59 42494 21 2125 96 92940 84 6152 81 6454 87 5520
1982 5 North Sea 20 7503 29 5214 96 54234
o o
86 15663 49 8301989-1990 6 North Sea 46 32972 22 8263 99 202118 54 640 96 12469 61 32
Plaicebox 83 83433 8 935 99 160347 100 201 88 3852 80 10215
L _ _ Nonplaicebox 36 17489 18 2658 97 75979 81 1647 85 ~53 51 1308
Average percentages are weighted over total catch numbers
~ w
Q,\ACFM\WGREPS\WGNSSK\REPORTS\1999\T-1.1-l.DOC 14112/98 1154
16 WORKING DOCUMENTS
Pastoors, M. A. Trends in effort, fishing mortality, catchability and CPUE in the North Sea flatfish fishery. Working Document no. l.
Pastoors, M.A., A. D. Rijnsdorp and F. A. van Beek. Evaluation of the effects of a closed area in the North Sea ('Plaice Box') on the stock development of plaice (Pleuronectes platessa). ICES CM 1998/U:2. Working Document no.
2.
Beek, F. A. vim. Comparison of historical results for WGNSSK stocks. Working Document no. 3.
Beek, F. A. van. Compilation of precautionary reference points proposed by ACFM in 1998 for the stocks considered in its May meeting. Working Document no. 4.
Ehrich, S., W. Weber and C. Zimmermann. A four-week area closure in the German Bight: A measure to protect the strong 1996 cod year dass. ICES CM 1998/U:8. Working Document no. 5.
Kell, L. Lowestoft Precautionary Approach suite. Working Document no. 6.
Pastoors, M. A. and A.T.G.W. E1tink. Market Sampling at the RIVO-DLO (The Netherlands). Working Document no.
7.
16.1 References
Armstrong, D. W. and W. B. Hall, 1987. Collection, processing and retrieval of data from catches by Scottish commercial fishing vessels of demersal fish species 1950-1982. In: Bailey, R. and B. B. Parrish (eds.).
Developments in fisheries research in Scotland. London, Fishing News Books.
Beek, F. A. van, 1990. Discard sampling programme for the North Sea, Dutch participation. RIVO Intern Rapport Dem Vis 90-303.
Cleveland, W. S., 1979. Robust 1ocally weighted regression and smoothing scatterplots. J Amer Stat Soc 74: 829-836.
Cook R. M. 1993. The use of sensitivity analysis to quantify uncertaintics in stock projections. ICES C. M. 1993/D:66.
Fowlkes, E. B., 1987. A Folio of Distributions: A Collection of Theoretical Quanti1e-Quantilc Plots. New York: Marce1 Dekker.
Hastie, T. J. and Tibshirani, R.J., 1990. Genera1ized Additive Models. London: Chapman & Hall.
ICES 1979. Report of the Flatfish Working Group. ICES CM 1979/0:10.
ICES 1986 a. Report of the Ad Hoc Multispecies Assessment Working Group. 1CES CM 1986/ Assess:9.
ICES 1986 b. Report of the North Sea Roundfish Working Group. ICES CM 1986/Assess:16.
ICES 1987 a. Report of the Ad Hoc Multispecies Assessment Working Group. ICES CM 1987/Assess:9.
ICES 1987 b. Report of the North Sea Roundfish Working Group. ICES CM 1987/Assess:15.
ICES 1987 c. Report of the Ad Hoc Meeting of the North Sea Flatfish Working Group, Ijmuiden. ICES CM 1987/Assess:14.
ICES 1987 d. Report of the Working Group on Industrial Fisheries, Copenhagen 5.-8. March 1987. ICES CM 1987/Assess:17.
674
ICES 1989. Report of the Multispecies Assessment Working Group. ICES CM 1989/Assess:20.
ICES 1990. Report of the North Sea Roundfish Working Group. ICES CM 1990/Assess:7.
ICES 1991. Report of Division Illa Demersal Stocks Working Group. Copenhagen, 25 February- 4 March 199!. ICES CM 1991/ Assess:9.
ICES 1994 a. Report of the Sandeel and Norway Pout Assessment Group. ICES CM 1994/Assess:7.
ICES 1994 b. Report of the ICES Study Group on the North Sea Plaice Box, Charlottenlund Denmark 12-15 April 1994. ICES CM 1994/Assess 14.
ICES 1995 a. Report of the Sandeel and Norway Pout Assessment Group. ICES CM 1994/Assess:5.
ICES 1995 b. Report of the Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak.
ICES CM 1995/Assess:8.
ICES 1996. Report of the Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak. ICES CM 1996/ Assess:6.
ICES 1997 a. Report of the Multispecies Assessment Working Group. ICES CM 1997/Assess: 16.
ICES 1997 b. Exttact of the Report of the Advisory Committee on Fishery Management to the European Commission and the Government of Norway, May 1997.
ICES 1997 c. Extract of the Report of the Advisory Committee on Fishery Management to the North-East Atlantic Commission, October 1997.
ICES 1997 d. Report of the ICES Advisory Committee on Fishery Management, 1996. ICES Cooperative Research Report 22!.
ICES 1997 e. Report of the Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak.
ICES CM 1997/ Assess:6.
ICES 1998. Report of the Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak. ICES CM 1998/Assess:7.
ICES 1999. Report of the Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak. ICES CM 1999/ACFM:l.
Kell, L.T., M.T. Smith, and CM O'Brien. 1997. A bootstrapped seasona1 survivors analysis for the North Sea sandee1s.
Working Document no. l (unpublished) to the ICES Working Group on the Assessment ofDemersal Stocks in the North Sea and the Skagerrak, Copenhagen, October 1997.
Reeves, S. and R. Cook, 1994. Demersal assessment programs, September 1994. Working Document (unpubhshed) to the 1994 meeting of the North Sea Demersal Working Group.
Skagen, D. W. 1993. A seasonal extended survivors analysis (SXSA) with optional estimation of unknown catches at age. Report of the Working Group on the Assessment of Norway Poul and Sandeel. ICES CM 1994/Assess:7, Appendix I.
Skagen, D. 1994. Revision and extension of the Seasonal Extended Survivors Analysis (SXSA). Working Document (unpublished) to the 1994 meeting of the Report of the Working Group on the Assessment of Norway Pout and Sandeel.
Staehr, K.-J. and J. G. Stottrup 1991. Migration of plaice transplanted from the North Sea to the Kattegat. ICES CM 1991/039.
675
Ulmestrand,\989. Erfarenheter och preliminaere resultat fron et umplantings .forsoek med roedspaetter i 1987. 6p (in Swedish).
Weber, W. 1995. Estimation of cod discards caused by the fishery on roundfish in the German Bight. ICES CM l995/B+G+H+J+K:6.
Wiik, M. B. and Gnanadesikan, R., \968. Probability plotting methods for the analysis of data. Biometrika 55: l-7.
676
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